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MMD2005-00013 MMD2005 00013 HUTTIG BUILDING PRODUCTS EXPANSION July 20, 2005 J . t '� CITY OF TIGARD Huttig Building Products OREGON Attn: Willie Hertford 8100 SW Hunziker Rd. Tigard, OR 97223 Dear Mr. Hertford: This letter is in response to your request for Minor Modification (MMD2005-00013) approval to expand the existing improved surface to include the southeast quarter section of the site. The purpose of which is for outdoor storage of building supplies. The tenant, Huttig Building Products, is considered a wholesale distributor of building materials, which is an allowed use within the I-L (Light Industrial) zone. The subject site is located at 8100 SW Hunziker Road, WCTM 2S101 CB, Tax Lot 00100. The Tigard Community Development Code, Site Development Review Section, states; "if the requested modification meets any of the major modification criteria, that the request shall be reviewed as a new Site Development Review application." Section 18.360.030.B. states that the Director shall determine that a major modification(s) has resulted if one (1) or more of the changes listed below have been proposed: 1. An increase in dwelling unit density or lot coverage for residential development. The proposal does not involve residential property. Therefore, this standard does not apply. 2. A change in the ratio or number of different types of dwelling units. This criterion is not applicable, as this request does not involve a residential development. 3. A change that requires additional on-site parking in accordance with Chapter 18.765. The requested modification is in order to add impervious surface. On-site parking is calculated using building square footage. Therefore, this standard does not apply. 4. A change in the type of commercial or industrial structures as defined by the Uniform Building Code. The proposed modification is to add impervious surface for outdoor storage. The proposed modification does not involve a structure. Therefore, this standard does not apply. 5. An increase in the height of the building(s) by more than 20 percent. The proposed modification does not involve a structure. Therefore, this standard does not apply. Page 1 of 2 13125 SW Hall Blvd., Tigard, OR 97223 (503) 639-4171 TDD (503) 684-2772 6. A change in the type and location of accessways and parking areas where off-site traffic would be affected. The proposal is for the expansion of the exterior paved surface. The purpose of the expansion is to allow for additional storage area which will not result in increased vehicular traffic to and from the site. Therefore, no change to the existing accessway is proposed. 7. An increase in vehicular traffic to and from the site and the increase can be expected to exceed 100 vehicles per day. The proposal is for the expansion of the exterior paved surface. The purpose of the expansion is to allow for additional storage area which will not result in increased vehicular traffic to and from the site. Therefore, this criterion has been satisfied. 8. An increase in the floor areas proposed for a non-residential use by more than ten percent excluding expansions under 5,000 square feet. Floor area refers to buildings. The proposed modification does not include a building. Therefore, this standard does not apply. 9. A reduction in the area reserved for common open space and/or usable open space that reduces the open space area below the minimum required by the code or reduces the open space areas by more than ten percent. Open space requirements are not applicable to this site for industrial purposes. The proposal is for the expansion of the paved surface of an industrial development 10. A reduction of project amenities (recreational facilities, screening; and/or, landscaping provisions) below the minimum established by the code or by more than ten percent where specified in the site plan. The I-L zoning district has a 15 percent landscape requirement. After the modification the subject site will have approximately 56,700 square feet of landscaping. The total square footage of the site is 329,976 square feet (17 percent of the site will be landscaped). The applicant has provided a re-vegetation plan that has been approved with recommendations from Clean Water Services. As a condition of approval the applicant is required to follow the re- vegetation plan and recommendations of Clean Water Services. The applicant will also be required to provide evidence of completion of the vegetation plan. 11. A modification to the conditions imposed at the time of Site Development Review approval that is not the subject of criteria (B). 1 through 10 above. Staff conducted a search of City records and found no original land-use approval associated with this property. Therefore, this standard does not apply. THIS REQUEST HAS BEEN APPROVED SUBJECT TO THE CONDITIONS BELOW. CONDITIONS: ♦ Follow the re-vegetation plan and recommendations of Clean Water Services. Provide evidence of completion of the vegetation plan. Page 2 of 2 This request is determined to be a minor modification to an existing site. The Director's designee has determined that the proposed minor modification of this existing site will continue to promote the general welfare of the City and will not be significantly detrimental or injurious to surrounding properties provided that, development which occurs after this decision complies with all applicable local, state, and federal laws. If you need additional information or have any questions, please feel free to call me at (503) 639-4171, ext. 2437. Sincerely, Mathew Sc eidegger Associate Planner 1:\curpin\mathew minmod\mmd2005-00013.dec c: MMD2005-00013 Westlake Consultants Inc. Attn: Kristy Kelly 15115 SW Sequoia Parkway, Suite 150 Tigard, OR 97224 Page 3 of 2 APPLICANT MATERIALS MINOR MODIFICATION TYPE I APPLICATION CITY OF TIGARD 13125 SW Hall Blvd., Tigard, OR 97223(503) 639-4171 FAX:(503) 684-7297 GENERAL INFORMATION Property AddresslLocation(s): 8100 SW Hunziker Rd. Tax Map &Tax Lot#(s): 2S1 0103 00100 FOR STAFF USE ONLY Site Size: 7.58 Arrps Case No.(s): UI i'rl 02-00 Cho f3 Applicant*: wi11iP HPrt•ford g Building Prrudiicts Other Case No.(s): Address: 8100 SW Hunziker Road Receipt No.: 2-45`- .5 -3/ B 0 City/State: Tigard, OR Zip: 97223 Application Accepted By: c Primary Contact: Willie Hertford Date: Phone: (503) 620-1411 Fax: (503.) .684-4861 Property Owner/Deed Holder(s)*: (Attach list if more than one) Date Determined Complete: Huttig , Inc. Rev.1/3/05 I:\cu rpinlmasters\revised\minormod.mst Address: 14500 South cantpr 40 Rd.. Phone: City/State: Chesterfield, MO Zip: 63017 • When the owner and the applicant are different people, the applicant must REQUIRED SUBMITTAL ELEMENTS be the purchaser of record or a lessee in possession with written (Note: applications will not be accepted authorization from the owner or an agent of the owner. The owner(s) must without the required submittal elements) sign this application in the space provided on the back of this form or submit a written authorization with this application. Application Form PROPOSAL SUMMARY The owners of record of the subject property request permission for a Minor Et Owner's Signature/Written Authorization Modification. To review a modification as a Minor Modification, the Director ja Title Transfer Instrument or Deed must first find that the expansion does not invoke one or more of the 11 criteria discussed within Section 18.120.070(B) of the Tigard Development Site Development Plan (3 copies) Code. If the modification exceeds the maximum allowed under any one or more of the following criteria, a Major Modification review is required. M.. Site/Plot Plan (reduced 8t/2"x 11') Major Modifications are processed in the same manner as a new Site Development Review. In a separate letter, please address the criteria below lk Applicant's Statement (3 copies) contained in Section 18.360.050(B) including a detailed response to each (Addressing Criteria Under Section 18.360.050(B) criteria. Filing Fee $529.00 $ 5 .00 1. An Increase in dwelling unit density or lot coverage for residential development. 2. A change in the ratio or number of different types of dwelling units. Jurisdiction: ❑ City ❑ Urb 3. A change that requires additional on-site parking in accordance with Chapter 18.765. In addition, the Director must find that the 4. A change in the type of commercial or industrial structures as defined by the proposed change complies with the underlying Uniform Building Code. standards of the applicable zoning district. To 5. An increase in the height of the building(s)by more than 20%. complete this review, the Applicant's proposal 6. A change in the type and location of accessways and parking areas where off-site must include a discussion indicating how the traffic would be affected. site expansion will continue to comply with the 7. An increase in vehicular traffic to and from the site and increase can be expected minimum setback, building height, parking to exceed 100 vehicles per day. land landscaping standards. Other applicable 8. An increase in the floor area proposed for a non-residential use by more than 10% requirements such as minimum Clear Vision excluding expansions under 5,000 square feet. areas near driveways and street intersections 9. A reduction in the area reserved for common open space and/or usable open may also be applicable depending on where space that reduces the open space area below the minimum required by this code the building expansion is proposed to be or reduces the open space area by more than ten percent. constructed on the site. 10. A reduction of project amenities (recreational facilities, screening, and/or, . 54,-) f,,-e.b f be/6:100)P14(4%betsi-...yr.�.j} landscaping provisions) below the minimum established by this code or by more than 10%where specified in the site plan. •£'"/5 p'°v iciLe k' 11. A modification to the conditions imposed at the time of Site Development Review $1orYt(^-w ■ c.o%5. nnnrn..nl�F...♦.....nn�K.n�utiir,nT of rritarin 1 fhrnnnh 1 n nhnvc APPLICANTS: To consider an application complete, you will need to submit ALL of the REQUIRED SUBMITTAL ELEMENTS as described on the front of this application in the"Required Submittal Elements" box. (Detailed Submittal Requirement Information sheets can be obtained, upon request,for all types of Land Use Applications.) THE APPLICANT(S) SHALL CERTIFY THAT: • The above request does not violate any deed restrictions that may be attached to or imposed upon the subject property. • If the application is granted, the applicant will exercise the rights granted in accordance with the terms and subject to all the conditions and limitations of the approval. • All of the above statements and the statements in the plot plan, attachments, and exhibits transmitted herewith, are true; and the applicants so acknowledge that any permit issued, based on this application, and may be revoked if it is found that any such statements are false. • The applicant has read the entire contents of the application, including the policies and criteria, and understands the requirements for approving or denying the application. SIGNATURES of each owner of the subject property. DATED this = day of —la , 20 5 . ' •wrfer's Signature O ' Owner's Signature Willie Hertford, Huttig Building Products Owner's Signature Owner's Signature Westlake consultants,inc TRANSMITTAL ENGINEERING ♦ SURVEYING ♦ PLANNING Phone: 503 684-0652 Fax: 503 624-0157 Date: July 8, 2005 Project No.: 1758-01/D To: CITY OF TIGARD Project Name: Huttig Site Improvements Planning Division 13125 SW Hall Boulevard Tigard,OR 97223-8189 Ph: 503-639-4171 Fax: 503-684-7297 Copy: Willie Hertford Huttig,Inc. 8100 SW Hunziker Road Tigard,OR 97223 Phone: 503 620-1411 Fax: 503 684-4861 From: Kristy Kelly Land Use Planner Re: Minor Modification Type I Application No.of Copies Dated Description 3 - City of Tigard Minor Modification Type I Application including: -CWS Service Provider Letter -Preliminary Stormwater Calculations 3 sets - Construction Documents—Huttig Site Improvements 1 - Construction Documents—Huttig Site Improvements(8 1/2"x 11") Comments: For your review. Fax ❑ No.of Pages(including cover) Fax No. Mail ❑ Messenger❑ Overnight ❑ Hand Delivery • Pacific Corporate Center, 15115 S.W.Sequoia Parkway,Suite 150,Tigard,Oregon 97224 Westlake 1 PLANNING I ENGINEERING I SURVEYING consultants,inc 40 Huttig Site Improvements Minor Modification July 7, 2005 Pacific Corporate Center 15115 sw sequoia parkway, suite 150, tigard, Oregon 97224 www.westlakeconsultants.com I PH 503.684.0652 I FX 503.624.0157 Huttig Site Improvements Prepared for: Willie Hertford Huttig,Inc. 8100 SW Hunziker Road Tigard, OR 97223 Phone: 503 638-5068 Fax: 503 638-6122 Prepared by: Westlake Consultants, Inc. 15115 SW Sequoia Parkway, Suite 150 Tigard, Oregon 97224 Phone: 503.684.0652 • Fax: 503.624.0157 Westlake Consultants, Inc. TABLE OF CONTENTS DATA SHEET 1 PROJECT OVERVIEW 2 PROJECT DESCRIPTION 2 SUBJECT SITE AND ABUTTING PROPERTY INFORMATION 2 Subject Site 2 Abutting Properties 2 SERVICES AND FACILITIES 2 Sanitary Sewer/Septic 2 Water Supply and Fire Protection 2 Storm Drainage 2 Other Utilities: Power- Telephone—Gas—Cable Television 3 MINOR MODIFICATION REQUEST 4 TIGARD COMMUNITY DEVELOPMENT CODE 4 CHAPTER 18.360 SITE DEVELOPMENT REVIEW 4 Section 18.360.050 Major Modification(s)to Approved Plans or Existing Development 4 Section 18.360.060 Minor Modification(s)to Approved Plans or Existing Development 6 Section 18.360.070 Submission Requirements 7 Section 18.360.090 Approval Criteria 8 CHAPTER 18.810 STREET AND UTILITY IMPROVEMENT STANDARDS 14 Section 18.810.010 Purpose 14 Section 18.810.020 General Provisions 14 Section 18.810.100 Storm Drainage 14 CONCLUSION 16 EXHIBITS Exhibit Contents A Construction Plans • Sheet 1 of 7 —Cover Sheet • Sheet 2 of 7—Existing Conditions • Sheet 3 of 7—Site & Demo Plan • Sheet 4 of 7—Grading & Erosion Control Plan • Sheet 5 of 7—Erosion Control Notes &Details • Sheet 6 of 7 —Utility Plan • Sheet 7 of 7—Details B City of Tigard Minor Modification Type I Application C Figure 5 —Proposed Vegetated Corridor Enhancement Plan D Clean Water Services Service Provider Letter E Deed F City of Tigard Transportation System Plan, Figure 7-2 Existing Transit Coverage G Preliminary Stormwater Calculations Huttig Minor Modification Westlake No. 1758-01 i July 7, 2005 Westlake Consultants, Inc. DATA SHEET APPLICANT'S REPRESENTATIVE: Westlake Consultants, Inc. 15115 SW Sequoia Parkway, Suite 150 Tigard, Oregon 97224 Contact: Lee Leighton, AICP Phone: 503 684-0652 Fax: 503 624-0157 APPLICANT/PROPERTY OWNER: Willie Hertford Huttig, Inc. 8100 SW Hunziker Road Tigard, OR 97223 Phone: 503 620-1411 Fax: 503 684-4861 PROPERTY DESCRIPTION: Tax Map 2S1 01 CB, Tax Lot 100 SITE SIZE: 7.58 Acres ZONING DESIGNATION: I-L(Light Industrial District) PROPOSAL: Minor Modification Huttig Minor Modification Westlake No. 1758-01 1 July 7, 2005 Westlake Consultants, Inc. PROJECT OVERVIEW PROJECT DESCRIPTION The applicant, Willie Hertford of Huttig Building Products, is proposing a minor modification to the approved Huttig building site. The subject property is located at 8100 SW Hunziker Street. The proposal is for the expansion of the existing improved surface to include the southeast quarter section of the site. The purpose of which is for outdoor storage of building supplies. For the purposes of this narrative, the area identified for development will be referred to as "subject area." According to the City of Tigard Development Code, the subject site is designated as I-L (Light Industrial District). This application addresses the applicable requirements for approval of a minor modification for the expansion of the existing improved surface for the purposes of outdoor storage, in the City of Tigard Community Development Code. A City of Tigard application form has been prepared and included as part of this approval request (See Exhibit B—City of Tigard Minor Modification Type I Application). A complete list of drawings and exhibits is provided immediately following the Table of Contents. SUBJECT SITE AND ABUTTING PROPERTY INFORMATION Subject Site The subject property contains approximately 7.58 acres located on the south side of SW Hunziker Road, in the I-L (Light Industrial District). It is identified in tax records as tax lot 100, tax map 2S1 01CB, Washington County. There is an existing commercial structure and accessory buildings that will not be removed as a part of the development proposal. Abutting Properties The subject property is surrounded on all sides by properties of similar industrial uses within the same zone SERVICES AND FACILITIES Sanitary Sewer/Septic The subject property is currently served by public sanitary sewer, more specifically through a gravity system to the north of the project in Hunziker Road, which ultimately connects to the East Tigard trunk line which runs along the properties eastern edge. Water Supply and Fire Protection The site is currently served by the City of Tigard Water Department. Storm Drainage Stormwater runoff from the additional impervious surface will be directed to a system of catch basins located within the subject area and directed to a water quality swale which is designed to mimic pre-development conditions and reduce impacts on downstream areas. The stormwater Huttig Minor Modification Westlake No. 1758-01 2 July 7, 2005 Westlake Consultants, Inc. will be treated for phosphorous and detained before it is released into the natural drainage course, Fanno Creek. Other Utilities: Power - Telephone — Gas — Cable Television Portland General Electric and Verizon provide electrical power and telephone services, respectively. Northwest Natural Gas and Comcast provide natural gas and cable television, respectively. All of these utilities will be provided to the site and coordinated with the appropriate utility. Huttig Minor Modification Westlake No. 1758-01 3 July 7, 2005 Westlake Consultants, Inc. MINOR MODIFICATION REQUEST The following sections of this narrative address the approval criteria that apply to the proposed minor modification. Quoted provisions appear in italics, followed by findings of fact and proposed conclusions of law. TIGARD COMMUNITY DEVELOPMENT CODE CHAPTER 18.360 SITE DEVELOPMENT REVIEW Section 18.360.050 Major Modification(s) to Approved Plans or Existing Development A. Determination request. An applicant may request approval of a modification to an approved plan or existing development by: 1. Providing the Director with three copies of the proposed modified site development plan; and Response: A modified site development plan outlining additional areas to be improved with asphaltic concrete surfaces is included as Exhibit A (See Exhibit A — Construction Plans). This provision is therefore satisfied. 2. A narrative which indicates the rationale for the proposed modification addressing the changes listed in subsection B below. Response: This document is the narrative statement presenting information regarding pertinent code sections. B. Evaluation criteria. The Director shall determine that a major modification(s) will result if one or more of the following changes are proposed. There will be: 1. An increase in dwelling unit density, or lot coverage for residential development; Response: The proposal is for the expansion of the paved surface of a industrial development, more specifically wholesale sales; therefore this provision is not applicable. 2. A change in the ratio or number of different types of dwelling units; Response: The proposal is for the expansion of the paved surface of an industrial development, more specifically wholesale sales with outdoor storage; therefore this provision is not applicable. Huttig Minor Modification Westlake No. 1758-01 4 July 7, 2005 Westlake Consultants, Inc. 3. A change that requires additional on-site parking in accordance with Chapter 18.765; Response: On-site parking is based on building floor area. The proposal is for the expansion of the exterior paved surface not building area; therefore additional on-site parking is not warranted. 4. A change in the type of commercial or industrial structures as defined by the Uniform Building Code; Response: The proposal is for the expansion of the exterior paved surface not a changing in the type of structure; therefore this provision is not applicable. 5. An increase in the height of the building(s) by more than 20%; Response: The proposal is for the expansion of the exterior paved surface not a change in the existing building; therefore this provision is not applicable. 6. A change in the type and location of accessways and parking areas where off-site traffic would be affected; Response: The proposal is for the expansion of the exterior paved surface. The purpose of the expansion is to allow for additional storage area not additional parking; therefore this provision is not applicable. 7. An increase in vehicular traffic to and from the site and the increase can be expected to exceed 100 vehicles per day; Response: The proposal is for the expansion of the exterior paved surface. The purpose of the expansion is to allow for additional storage area which will not result in increased vehicular traffic to and from the site; this provision is therefore not applicable. 8. An increase in the floor area proposed for a nonresidential use by more than 10% excluding expansions under 5,000 square feet; Response: The proposal is for the expansion of the exterior paved surface not a change in the existing building; therefore this provision is not applicable. 9. A reduction in the area reserved for common open space and/or usable open space which reduces the open space area below the minimum required by this code or reduces the open space area by more than 10%; Response: Open space requirements are not applicable to this site for industrial purposes. The proposal is for the expansion of the paved surface of an industrial development, more specifically wholesale sales; therefore this provision is not applicable. Huttig Minor Modification Westlake No. 1758-01 5 July 7, 2005 Westlake Consultants, Inc. 10. A reduction of project amenities below the minimum established by this code or by more than 10% where specified in the site plan: a. Recreational facilities; b. Screening; and/or c. Landscaping provisions. Response: Per Section 18.760.040.C.1.a, for purposes of the landscape requirements the site area is limited to the proposed expansion area or areas of disturbance. A landscape plan as approved by Clean Water Services is included in Exhibit C (See Exhibit C — Figure 5 — Proposed Vegetated Corridor Enhancement Plan). . As detailed in these plans .58 acres, or 25,265 sq. feet, of the 1.35 acres, or 58,708 sq. feet, expansion area will be landscaped. This equals approximately 40% of the total expansion area; therefore this provision is satisfied. 11. A modification to the conditions imposed at the time of site development review approval which are not the subject of BI through 10 above of this subsection. Response: The proposal is for the minor modification (as evidenced by B1 through 10 above). Per Section 18.360.020.A.4, minor modifications are not subject to site development review; therefore, this provision is not applicable. Section 18.360.060 Minor Modification(s) to Approved Plans or Existing Development A. Minor modification defined. Any modification which is not within the description of a major modification as provided in Section 18.360.050 shall be considered a minor modification. Response: The proposal is for the expansion of the existing improved surfaces. As evidenced by Section 18.360.050 above, the proposal meets the threshold for a minor modification; therefore this provision is satisfied. B. Process. An applicant may request approval of a minor modification in accordance with Section 18.360.030B and as follows: 1. Providing the Director with three copies of the proposed modified site development plan; and Response: A modified site development plan outlining additional areas to be paved is included as Exhibit A (See Exhibit A—Construction Plans). This provision is therefore satisfied. 2. A narrative which indicates the rationale for the proposed modification addressing the changes listed in Section 18.360.0508. Response: This document is the narrative statement presenting information regarding pertinent code sections. Huttig Minor Modification Westlake No. 1758-01 6 July 7, 2005 Westlake Consultants, Inc. C. Approval criteria. A minor modification shall be approved, approved with conditions or denied following the Director's review based on the finding that: 1. The proposed development is in compliance with all applicable requirements of this title; and Response: The proposal meets the applicable requirements of this title as evidenced in this narrative. This provision is therefore satisfied. 2. The modification is not a major modification. Response: As evidenced by Section 18.360.050 above, the proposal meets the threshold for a minor modification; therefore this provision is satisfied. Section 18.360.070 Submission Requirements A. General submission requirements. The applicant shall submit an application containing all of the general information required for a Type II procedure, as governed by Section 18.390.040. Response: Per Section 18.360.030.B, minor modifications shall be processed as a Type I procedure. A City of Tigard Minor Modification Type I Application is included as Exhibit B (See Exhibit B - City of Tigard Minor Modification Type I Application). This narrative addresses the applicable code provisions for a Type I minor modification. This submission requirement is therefore satisfied. B. Additional information. In addition to the submission requirements required in Chapter 18.390, Decision-Making Procedures, an application for the conceptual development plan must include the following additional information in graphic, tabular and/or narrative form. The Director shall provide a list of the specific information to be included in each of the following: 1. An existing site conditions analysis; Response: An existing site conditions analysis can be found in Exhibit A (See Exhibit A — Construction Plans, Sheet 2 of 7—Existing Conditions). This submittal requirement is satisfied. 2. A site plan; Response: A site plan can be found in Exhibit A (See Exhibit A— Construction Plans, Sheet 3 of 7—Site & Demo Plan). This submittal requirement is satisfied. 3. A grading plan; Response: A grading plan can be found in Exhibit A (See Exhibit A— Construction Plans, Sheet 4 of 7—Grading & Erosion Control Plan). This submittal requirement is satisfied. Huttig Minor Modification Westlake No. 1758-01 7 July 7, 2005 Westlake Consultants, Inc. 4. A landscape plan; Response: Landscaping will be limited to enhancement of buffer areas along the wetlands located on the easterly boundary of the site. A landscape plan completed by, Pacific Habitat Services, Inc and approved by Clean Water Services can be found in Exhibit C (See Exhibit C — Figure 5 — Proposed Vegetated Corridor Enhancement Plan). This submittal requirement is satisfied. 5. Architectural elevations of all structures; and Response: The proposal is for the expansion of the exterior paved surface not a change in the existing building; therefore this provision is not applicable. 6. A copy of all existing and proposed restrictions or covenants. Response: The proposal is for the expansion of the paved surface of an industrial development, more specifically wholesale sales. There are no existing or proposed restrictions or covenants. This provision is therefore not applicable. A copy of the deed can be found in Exhibit E (See Exhibit E—Deed). Section 18.360.090 Approval Criteria A. Approval criteria. The Director shall make a finding with respect to each of the following criteria when approving, approving with conditions, or denying an application: 1. Compliance with all of the applicable requirements of this title including Chapter 18.810, Street and Utility Standards; Response: A detailed response to the applicable requirement of Chapter 18.810 can be found be found in Chapter 18.810 of this narrative. This criterion is therefore satisfied. 2. Relationship to the natural and physical environment: a. Buildings shall be: (1) Located to preserve existing trees, topography and natural drainage where possible based upon existing site conditions; (2) Located in areas not subject to ground slumping or sliding; (3) Located to provide adequate distance between adjoining buildings for adequate light, air circulation, and fire-fighting; and (4) Oriented with consideration for sun and wind. Response: The proposal is for the expansion of impervious surface, i.e. paved surface, to allow for additional outdoor storage of building supplies as well as the enhancement of wetland buffers identified by Pacific Habitat Services, Inc. and approved by Clean Water Services. The proposal does not include modifications to the existing building; therefore, this criterion is not applicable. b. Trees shall be preserved to the extent possible. Replacement of trees is subject to the requirements of Chapter 18.790, Tree Removal. Huttig Minor Modification Westlake No. 1758-01 8 July 7, 2005 Westlake Consultants, Inc. Response: Per Section 18.790.010.C, the City recognizes that, notwithstanding these purposes, at the time of development it may be necessary to remove certain trees in order to accommodate structures, street utilities, and other needed or required improvements within the development. The proposal includes plans to expand the existing pavement to allow for additional outdoor storage. An inventory of trees limited to the subject area reveals that there are a total of 20 trees within the subject area. Of the 20 trees, 7 are recommended for preservation. 3. Exterior elevations: a. Along the vertical face of single-family attached and multiple family structures, offsets shall occur at a minimum of every 30 feet by providing any two of the following: (1) Recesses, e.g., decks, patios, entrances,floor area, of a minimum depth of eight feet; (2) Extensions, e.g., decks,patios, entrances,floor area, of a minimum depth of eight feet, a maximum length of an overhang shall be 25 feet; and (3) Offsets or breaks in roof elevations of three or more feet in height. Response: The proposal is for the expansion of the exterior paved surface not a change in the existing building; therefore this provision is not applicable. 4. Buffering, screening and compatibility between adjoining uses: a. Buffering shall be provided between different types of land uses, for example, between single-family and multiple family residential, and residential and commercial uses, and the following factors shall be considered in determining the adequacy of the type and extent of the buffer: (1) The purpose of the buffer, for example to decrease noise levels, absorb air pollution,filter dust, or to provide a visual barrier; (2) The size of the buffer required to achieve the purpose in terms of width and height; (3) The direction(s)from which buffering is needed; (4) The required density of the buffering; and (5) Whether the viewer is stationary or mobile. b. On site screening from view from adjoining properties of such things as service areas, storage areas, parking lots, and mechanical devices on roof tops, i.e., air cooling and heating systems, shall be provided and the following factors will be considered in determining the adequacy of the type and extent of the screening: (1) What needs to be screened; (2) The direction from which it is needed; (3) How dense the screen needs to be; (4) Whether the viewer is stationary or mobile; and (5) Whether the screening needs to be year around. Huttig Minor Modification Westlake No. 1758-01 9 July 7, 2005 Westlake Consultants, Inc. Response: The subject property is surrounded on all sides by properties of similar density within the same zone. Per Section 18.745.1, uses within the same zone doe not require additional buffering and/or screening (see below). TABLE 13.7.5.1 BUFFER.IIATRLS PROPOSED USE Singe Um Attached Staple Attached Mobile Coenarzcal Neighborhood Mired Light Heavy PatAagi_ots Detached; Utats sad ingle Sr L`its Haan Zones(CC. Commercial Use Industrial lndustial 4-50 50- Mawfactured Multifamily. and Parks CG-CP, Zone C\) Employ- Zones Zones sprees spaces Units 1-5 Thos. bfulofmnaiv, CBD) zn (IP,Q.) OH) F:l7S?IFGAB1TTD G USE Duplexes S=Unin Detached Single Units:M ufartuzedUnits — A C C D C C E F C D Mocked Single LUits and 3brlcb®ly. A — B C D C C E F C D 1-5 Units.Duplexes Attached Single Units and ltaltifaraly, A A — C D C C E F C D 5+Units Motile Hoene Parks A A B — D C C B F C D Cammemial Zaut(CC.CO,CP,CID) C C C C — A A D D — -- Neiehbasimod Commercial Zane(es) C C C C A — A D D — — Murk Use Employment Zone(SUE) C C C C A A — -- D — — L•gbt Industrial Zones 2(Ii_IL) D D D D A A A D — -- Heavy Industrial Zone(hi) D D 0 0 D D 0 — — -- Padang Lon C C C C — -- — -- — — -- Arterial Streets A A A A — — — A D — -- Note..See Table 11-45 2 kir dtemanve combinations for meeting these screening requirements. 5. Privacy and noise: multi family or group living uses: a. Structures which include residential dwelling units shall provide private outdoor areas for each ground floor unit which is screened from view by adjoining units as provided in Subsection 6.a below; b. The buildings shall be oriented in a manner which protects private spaces on adjoining properties from view and noise; c. On-site uses which create noise, light, or glare shall be buffered from adjoining residential uses; and d. Buffers shall be placed on the site as necessary to mitigate noise, light or glare from off-site sources. 6. Private outdoor area: multi family use: a. Private open space such as a patio or balcony shall be provided and shall be designed for the exclusive use of individual units and shall be at least 48 square feet in size with a minimum width dimension of four feet; and (1) Balconies used for entrances or exits shall not be considered as open space except where such exits or entrances are for the sole use of the unit; and (2) Required open space may include roofed or enclosed structures such as a recreation center or covered picnic area. b. Wherever possible, private outdoor open spaces should be oriented toward the sun; and c. Private outdoor spaces shall be screened or designed to provide privacy for the users of the space. 7. Shared outdoor recreation areas: multi family use: Huttig Minor Modification Westlake No. 1758-01 10 July 7, 2005 Westlake Consultants, Inc. a. In addition to the requirements of subsections 5 and 6 above, usable outdoor recreation space shall be provided in residential developments for the shared or common use of all the residents in the following amounts: (1) Studio up to and including two-bedroom units, 200 square feet per unit; and (2) Three or more bedroom units, 300 square feet per unit. b. The required recreation space may be provided as follows: (1) It may be all outdoor space; or (2) It may be part outdoor space and part indoor space;for example, an outdoor tennis court, and indoor recreation room; or (3) It may be all public or common space; or (4) It may be part common space and part private; for example, it could be an outdoor tennis court, indoor recreation room and balconies on each unit; and (5) Where balconies are added to units, the balconies shall not be less than 48 square feet. c. Shared outdoor recreation space shall be readily observable to promote crime prevention and safety; Response: The proposal is for the expansion of the existing paved surface to allow for addition outdoor storage of a industrial development, more specifically wholesale sales. The preceding provisions apply to multi-family use and are therefore not applicable. 8. Where landfill and/or development is allowed within and adjacent to the 100 year floodplain, the City shall require consideration of the dedication of sufficient open land area for green way adjoining and within the floodplain. This area shall include portions at a suitable elevation for the construction of a pedestrian/bicycle pathway within the floodplain in accordance with the adopted pedestrian/bicycle plan. Response: The subject property is adjacent to Red Rock Creek. The land within the floodplain, wetland and buffer areas will be encumbered by an appropriate easement to the City of Tigard for corridor protection. This provision is therefore satisfied. 9. Demarcation of public, semi-public and private spaces for crime prevention: a. The structures and site improvements shall be designed so that public areas such as streets or public gathering places, semi-public areas and private outdoor areas are clearly defined to establish persons having a right to be in the space, to provide for crime prevention and to establish maintenance responsibility; and b. These areas may be defined by, but not limited to: • (1) A deck,patio, low wall, hedge, or draping vine; (2) A trellis or arbor; (3) A change in elevation or grade; Huttig Minor Modification Westlake No. 1758-01 11 July 7, 2005 Westlake Consultants, Inc. (4) A change in the texture of the path material; (5) Sign; or (6) Landscaping. Response: The proposed modification is for the expansion of existing outdoor storage space; therefore demarcation is not warranted. 10. Crime prevention and safety: a. Windows shall be located so that areas vulnerable to crime can be surveyed by the occupants; b. Interior laundry and service areas shall be located in a way that they can be observed by others; c. Mail boxes shall be located in lighted areas having vehicular or pedestrian traffic; d. The exterior lighting levels shall be selected and the angles shall be oriented towards areas vulnerable to crime; and e. Light fixtures shall be provided in areas having heavy pedestrian or vehicular traffic and in potentially dangerous areas such as parking lots, stairs, ramps and abrupt grade changes. Fixtures shall be placed at a height so that light patterns overlap at a height of seven feet which is sufficient to illuminate a person. Response: The proposal is for a modest 18% expansion to the overall site. The purpose of this expansion is to create additional outdoor storage space. To promote crime prevention and safety, an existing lightpole will be preserved to provide on-site lighting for existing as well as proposed improvements. 11. Public transit: a. Provisions within the plan shall be included for providing for transit if the development proposal is adjacent to or within 500 feet of existing or proposed transit route; b. The requirements for transit facilities shall be based on: (1) The location of other transit facilities in the area; and (2) The size and type of the proposal. c. The following facilities may be required after City and Tri-Met review: (1) Bus stop shelters; (2) Turnouts for buses; and (3) Connecting paths to the shelters. Response: The subject property is located along SW Hunziker Street, which is identified in the City of Tigard Transportation System Plan as an existing transit/service route (See Exhibit F — City of Tigard Transportation System Plan, Figure 7-2 Existing Transit Coverage). The proposal is for an increase in the paved surface of the site. The purpose of the expansion is to allow for additional outdoor storage. Proposed improvements are not located along the street side of the subject property. Furthermore, the proposal will have no net effect on the transit system. Huttig Minor Modification Westlake No. 1758-01 12 July 7, 2005 Westlake Consultants, Inc. 12. Landscaping: a. All landscaping shall be designed in accordance with the requirements set forth in Chapter 18.745; b. In addition to the open space and recreation area requirements of subsections 5 and 6 above, a minimum of 20 percent of the gross area including parking, loading and service areas shall be landscaped; and c. A minimum of 15 percent of the gross site area shall be landscaped. Response: Per Section 18.760.040.C.1.a, for purposes of the landscape requirements the site area is limited to the proposed expansion area or areas of disturbance. A landscape plan as approved by Clean Water Services is included in Exhibit C (See Exhibit C — Figure 5 — Proposed Vegetated Corridor Enhancement Plan). As detailed in these plans .58 acres, or 25,265 sq. feet, of the 1.35 acres, or 58,708 sq. feet, expansion area will be landscaped. This equals approximately 40% of the total expansion area; therefore this provision is satisfied. 13. Drainage: All drainage plans shall be designed in accordance with the criteria in the adopted 1981 master drainage plan; Response: The proposal is for the expansion of the exterior paved surface. The purpose of the expansion is to allow for additional storage area. Stormwater runoff from the additional impervious surface will be directed to a system of catch basins located within the subject area and directed to a water quality swale which is designed to mimic pre-development conditions and reduce impacts on downstream areas. The stormwater will be treated for phosphorous and detained before it is released into the natural drainage course, Fanno Creek. This is consistent with the criteria in the adopted 1981 master drainage plan. 14. Provision for the disabled: All facilities for the disabled shall be designed in accordance with the requirements set forth in ORS Chapter 447; and Response: The proposal does not include plans for modifications to the building and/or parking. The proposal is for the expansion of existing impervious surface (asphalt) to allow for additional outdoor storage. This does not warrant facilities for the disabled and is therefore not applicable. 15. All of the provisions and regulations of the underlying zone shall apply unless modified by other sections or this title, e.g., Planned Developments, Chapter 18.350; or a variance or adjustment granted under Chapter 18.3 70.; (Ord. 02-33) Response: The subject property is located in the I-L (Light Industrial District). The primary use of the subject property is wholesale sales which is an outright permitted use per Table 18.530.1. The proposal does not affect the setbacks and or lot size and no variances or adjustments are requested. This provision is therefore satisfied. Huttig Minor Modification Westlake No. 1758-01 13 July 7, 2005 Westlake Consultants, Inc. CHAPTER 18.810 STREET AND UTILITY IMPROVEMENT STANDARDS Section 18.810.010 Purpose A. Purpose. The purpose of this chapter is to provide construction standards for the implementation of public and private facilities and utilities such as streets, sewers, and drainage. Response: The proposal is for the expansion of the exterior paved surface. The purpose of the expansion is to allow for additional storage area. Stormwater runoff from the additional impervious surface will be directed to a system of catch basins located within the subject area and directed to a water quality swale which is designed to mimic pre-development conditions and reduce impacts on downstream areas. The stormwater will be treated for phosphorous and detained before it is released into the natural drainage course, Fanno Creek. Section 18.810.020 General Provisions A. When standards apply. Unless otherwise provided, construction, reconstruction or repair of streets, sidewalks, curbs and other public improvements shall occur in accordance with the standards of this title. No development may occur and no land use application may be approved unless the public facilities related to development comply with the public facility requirements established in this section and adequate public facilities are available. Applicants may be required to dedicate land and build required public improvements only when the required exaction is directly related to and roughly proportional to the impact of the development. Response: the proposal does not impact public improvements along SW Hunziker Road or any public facilities within the property. This proposal does not include the construction, reconstruction or repair of streets, sidewalks and curbs. It does, however, include the installation of additional impervious surface which necessitates the implementation of a storm water management system. This narrative addresses the applicable provisions related to storm drainage. Section 18.810.100 Storm Drainage A. General provisions. The Director and City Engineer shall issue a development permit only where adequate provisions for storm water and flood water runoff have been made, and: 1. The storm water drainage system shall be separate and independent of any sanitary sewerage system; Response: The proposal does not include plans for a new sanitary sewerage system. The proposed storm water drainage system is a new system separate and independent of the existing sanitary sewerage system. This provision is therefore satisfied. 2. Where possible, inlets shall be provided so surface water is not carried across any intersection or allowed to flood any street; and Huttig Minor Modification Westlake No. 1758-01 14 July 7, 2005 Westlake Consultants, Inc. Response: The proposal is for the expansion of the exterior paved surface. The purpose of the expansion is to allow for additional storage area. Stormwater runoff from the additional impervious surface will be directed to a system of catch basins located within the subject area. The proposal includes plans for a system of several catch basins at prescribed locations such that surface water will not sheet flow across 3. Surface water drainage patterns shall be shown on every development proposal plan. Response: Surface water drainage patterns are depicted on the grading plan (See Exhibit A— Construction Plans, Sheet 4 of 7—Grading & Erosion Control Plan). This provision is therefore satisfied. B. Easements. Where a development is traversed by a watercourse, drainageway, channel or stream, there shall be provided a storm water easement or drainage right-of-way conforming substantially with the lines of such watercourse and such further width as will be adequate for conveyance and maintenance. Response: The subject area is adjacent to Red Rock Creek. The subject property currently contains a portion of an existing 20-foot Tigard Water District Easement (See Exhibit A— Construction Plans, Sheet 2 of 7—Existing Conditions). Land within the floodplain, wetland and buffer areas will be encumbered by an appropriate easement to the City of Tigard for corridor protection. This provision is therefore satisfied. C. Accommodation of upstream drainage. A culvert or other drainage facility shall be large enough to accommodate potential runoff from its entire upstream drainage area, whether inside or outside the development, and: 1. The City Engineer shall approve the necessary size of the facility, based on the provisions of Design and Construction Standards for Sanitary and Surface Water Management (as adopted by the Unified Sewerage Agency in 1996 and including any future revisions or amendments). Response: Impacts to the system are limited to the additional improved surface. No improvements are proposed along the Red Rock Creek corridor that impact upstream culverts. The proposed water quality swale has been designed to mimic pre-development conditions. The stormwater will be treated for phosphorous and detained before it is released into the natural drainage course, Fanno Creek. D. Effect on downstream drainage. Where it is anticipated by the City Engineer that the additional runoff resulting from the development will overload an existing drainage facility, the Director and Engineer shall withhold approval of the development until provisions have been made for improvement of the potential condition or until provisions have been made for storage of additional runoff caused by the development in accordance with the Design and Construction Standards for Sanitary and Surface Water Huttig Minor Modification Westlake No. 1758-01 15 July 7, 2005 Westlake Consultants, Inc. Management (as adopted by the Unified Sewerage Agency in 1996 and including any future revisions or amendments). Response: Impacts to the system are limited to the additional paved surface. The proposed water quality swale and detention basin has been designed to mimic pre-development conditions and reduce impacts on downstream areas. CONCLUSION The proposed minor modification is consistent with all applicable standards in the City's land use designation and zoning of the subject properties. This application addresses the applicable sections of the City of Tigard Development Code, and in particular demonstrates how all applicable approval criteria for the requested partition are satisfied. The applicant and property owners respectfully request that the Director approve the proposed minor modification. Huttig Minor Modification Westlake No. 1758-01 16 July 7, 2005 Exhibit A Construction Plans r • I°' �I le 3i •CONSTRUCTION PLANS FOR x$ • , HUTT1G SITE IMPROVEMEN 1S o3_ TOGARD OR GON z •W9 •�Et° 3po uu O ' i.' A - A T `�- hs,. HA 4-14., / All' '`,......, °�wc r • W .� r SHEET INDEX EXISTING � � • • !(// L ASPHALT / i W i NAME: N0. � .f/ .`'ice > ® s` COVER SHEET 1 \ �� Q O r A. . �/ SITE EXISTING CONDITIONS 2 ' ' {„�_ O W LOCATION / �- I `'•.'4•44.,� SITE & DEMO PLAN 3 A/ // ^^ CL CL i W ` GRADING & EROSION CONTROL PLAN 4 \ / L O _�NEW EROSION CONTROL NOTES do DETAILS 5 • ASPHALT / l'/' �' /E 0 ''� w O O s \ UTILITY PLAN 6 \ tip /I �. ■DETAILS 7 „� f /`� " � � . i-% � ' /7".17. ' H+ 0 LOCATION MAP \\ - y J '” NOT TO SCALE `. (;' /- - -1 , D SITE MAP I'`.:- SCALE 1_� a APPUCANT ENGINEER/SURVEYOR 8100 BUILDING PRODUCTS WESTLAKE CONSULTANTS,INC. -- S 8100 SW HUNZIKER ST. PACIFIC CORPORATE CENTER ' p1 11GARD,OREGON, 97223 15115 S.W. SEQUOIA PARKWAY, � e PH, (503) 620-1411 SUITE 150 TIGARD,OREGON 97224 f)(ISTINQ FAX:(503)664-4861 PHONE (503)684-0652 •- _ CONTACT: BRYAN DOUGLASS FAX: (503)624-0157 ,��,r CONTACT: BERNARD SMITH.PE am mr �Ile�•A19 ------- PROPERTY LINE —x—x— FENCE UNE (TYPE AS NOTED) • FOUND IRON ROD AS NOTED ......LTV ■x•xo r 1O SD UNDERGROUND STORM DRAIN UNE ' UGHT POLE - 6„ PROPERTY DESCRIPTION AGENCY 1 EXTENTS OF 100 YEAR FLOOD ti tSm TAX MAP. 251 OTBC SUBMIT TO CITY OF SOARS E UNDERGROUND ELECTRICAL UNE ® SANITARY SEWER MANHOLE m g TAX LOT NOS: 2501 U CATCH BASIN SS UNDERGROUND SANITARY SEWER UNE '.,._� CONCRETE z Si, r-w ROB 100 YEAR Fl-00D PLAIN 0 BOLLARD A ATTENTION: OREGON LAW REQUIRES YOU TO FOLLOW RULES BENCH MARK CURB LINE v��I��f`/i1 1I ADOPTED BY THE OREGON UTILITY NOTIFICATION CENTER. THOSE RULES (TYPE AS NOTED) �/1 BURORW FACE AT FOOTPRINT r� DECIDUOUS TREE ARE SET FORTH IN OAR 952-001-0010 THROUGH OAR 952-001-0090. VERTICAL CONTROL BASED ON CITY OF • YOU MAY OBTAIN COPIES OF THESE RULES BY CALLING 7HE CENTER. TIGARD BENCH MARK NO. 43,BEING A WALL/RETAINING WALL - _ (NOTE: THE TELEPHONE NUMBER FOR THE OREGON UTUTY NOTIFICATION BRASS DISK IN CONCRETE SIDEWALK ON �' : GRAVEL F CENTER IS(503) 232-1987). HALL BLVD. BRIDGE OVER FANNO CREEK. EDGE OF ASPHALT PAVEMENT F UTILITY STATEMENT; THE UNDERGROUND UTILITIES SHOWN ARE ELEVATION: 14310,WORD'29 EDGE OF GRAVEL COSTING WATERLINE CONIFERS TREE PER FIELD MARKINGS AND RECORD DRAWINGS PROVIDED BY THE - - 1'CONTOUR INTERVAL RESPECTIVE UTTUTY AGENCIES.LOCATION OF NON-OBSERVABLE AND/OR UNDERGROUND UTUTIES ARE SHOWN FOR INFORMATION ONLY AND ARE --- -- --- 5'CONTOUR INTERVAL NOT GUARANTEED TO BE COMPLETE OR ACCURATE. - EDGE OF CONCRETE U7 UTILITY VERIFICATION: CONTRACTOR SHALL POTHOLE TO VERIFY PROPOSED O LOCATION OF ALL UNDERGROUND UTUTES PRIOR TO COMMENCING CONSTRUCTION AND SHALL PROVIDE WESTLL=CONSULTANTS, INC. N 72-HOURS NOTICE OF ANY POTENTIAL CONFLICTS. 0 ` — _- - l II CATCH BASIN • INLET PROTECTION BARRIER 0 MANHOLE • • SEDIMENT FENCE ENT FENCE S O C ®® STORM UNE-NUN SWAT FLOW LINE SHEET —105— S'CONTOUR INTERVAL _101_ 1'CONTOUR INTERVAL 1 OF 7 M EDGE OF AC JOB NO. 1758-0 I A U IT2.05CION i ,4 / / 1 !! /4/\_ 6' CHAIN LINK / / �g le4u• FENCE C// / °i FINISHED FLOOR /O-V•/ / • 2 t52.eT TIGARD WATER /43-1 1 !' o S . /fr.' t DISTRICT EASEMENT / \t\ (20.00') / 1 •01 t r pi EaSsa ASpH►Lt ;' lr \t\t CATCH SUMP EAST 40.00 �N • 1 / RIM-147.14' / / / ',i W \\I' 16"FIR ry 1 W 146.5' /\ / / •/' X155 4k - 16"�1(�` ! 6-i EXTRUDED,CURB / . / / 1 \- , / 10" BIRCH { '� \ I I /� / / O `, C 9\s- CATCH BASIN / /10" BIRCH { !�• �t `.. \ /0)) / ( •) �p 3�' I SUMP SOUTH / 1G, �� ,~ \ / / V �P`}. -�'L RIM=152.73' / .i/ff I 12"FIR 1 / 14"FIR/ .° / / / I- Q ' WATER=152.1' •�1'- i q/ .P 051 G t i ( I 1I\16,FIR I ( 4 \ \ ; /' / OF w z /%. W t l ��/ J EDGE OF ) S I \ 1�/` /EDGE GRAVEL S 4EDNOR LIGHTPOLE ^)�// RAVEMENT 1 { \ 1 \ J ,f/ /,/ tDFJ� --� _ BROKEN/ / • / /ir, /j. ..„ 6 !s TH ./ / / \EXTRUDED CURB) / 1 \ \ // J / '/ \ Z IN EDGE OF /15 i _ ( j // /\ ttf M A ;„:1,1// e / O ft PAVEMENT r / �' \ "``; : ' ' u} l J t / / / \ 8 FIR ` � _._-` f 2 EXRUDED CURB) - '/r :n�� ` / >' %,. c. / /t_ //� / / /. 0- , o �.. '!a"BI�cH / = 1 1 ��\per // / / /%/f \ / / o i/r / / , ,///r �, CATCH BASIN --154---_ / 1 / / ,` ,+�/ \` /////j/ /\\\ // / // .}r - �/ /;, , ,,, ,./...:_ Q z SUMP EAST / ( / i _ ` '//// // I \ \� / f /' ✓ /' . 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LOC. / ///` ' ff'/L' ,?'/�X/'// 1 / v' , E..r' \ \ \\\\ -158— '\ \ \ ,. ( --)._'151 ///`/ -14” LUMP,l7F DEC/ / / =1=::=1:114" \\\\\ \ 1\\�\S``CLUMP OF DEC 1 a, ,/ - / (APFjp�(.to9C,T//J,' / �'"\ `\ ..----,\\\\\ 59 { { ' \\1 11 (APRUX. LOC.) ' //*l+'4/ - /% / ,� :w N.` \\NI6 {l Ill / ,, /!/1 j,¢- r A- �' ss \ N —152 ■ S` {I 11,\ / /� (ry///'cjx - -/�/ WATER ELEVATION % �P \ \ t j\ `` r Os' J /r/ / NABOVE NUTRIA. DAM) `\ \\\\J.-1\ \\\\ ///�' /. /.// / _• 4N 02-17-09= 145.3' ' ` / - Si / /// I '' EDGE OF W N. i �/f/! J/�\/ r j/��v' / I PAVEMENT I I o yc‘c, 10,,..4 „...r "�/ . r;/ 1 in hh - / I J APROX. LOCATION / �1 _ /_ } / / ,/ k 12" CMP OUTFACE / j / a APROX. IE= 147,2' // WATER �EVA11ON / p / (BELOW/NUTRjA DAM) ' !EET ON 02-`17-05 = 143.2' / i / 2 OF 7 a(n Job No. 1758-01 i O i `` I Y 41D FENCE ,. FINISHED FLOOR • 152.87 F •i ,\ - GRAPHIC SCALE + i i 1 iN. 7017 F�1 _ •t) CATCH BASIN • ,I/If // `� SUMP EAST F � � // 147.14' / W 'I 0 ` -4' 'E`'R W R=146.5' LEGEND QZ . /LJ • / ��1 i 7/ ): ' / \ AREA OF NEW AC 0 *-447, '-, K 6" EXTRUDED CURB 7 v / r / / c' /,d = 13' 1 o / / /•r)�?a`g�5 CATCH BASIN ID / , I -♦ 1 •- t•i / V) 0'C ,EL . - SUMP SOUTH �, iI/1 �� `� / / / �♦ �� • ' RI M=152.73' O •41'.. "FIR ♦'. 14"FIR L /• CpP(� WATER=152.1' :�' 3'E� FI- // Z• i/ 'F}� ' / (� CONSTRUCTION NOTES a\ LJ,J —�V" A. .. I t� �. ` I / / ,4. /. O1 EXISTING EXTRUDED CURB TO BE REMOVED. NEW LARGE UGH TPOLE / AC TO MATCH EXISTING ' - 1 Z 13 !\ 1 W/ 3 BOLLARDS I` 'Nj• EN I y,; W • / 4 _ i O EDGE OF NEW AC \ Q I ! ti`/y I+. UG TED FROM NORTH // D CURB) /- / J AS!N /� — 1 EDGE OF I ` / t) I / / / O NEW�AOSSACVEAMECNRSECTION TO BE O jo H PAVEMENT :r%r_ N.(WITH BROKEN EXTRUDED CURB) wA,ER OUAUTY swuE CL` . O EASING FENCE To BE REMOVED • I I ,8O COSTING TREES)TO BE REMOVED!0 /� ! ; I / / , / / O EXISTING TREE TO REMAIN-PROTECT Z CATCH BASIN ( / - I L� DURING CONSTRUCTION Q Q SUMP EAST/ �� 1 1 i -(ti. / �" C7 •\ RiM=153.45' I ,_ Ih �' i" / ' — W WATER=152.9' 1 1 1 1� ti �� /• / ,' H • I I©I • � �� / / 0 F- 1EI ( ! / // NITA••%'ANHt7l�/ // V / I 1 . . .//��/ / • 8' CHAIN LINK FENCE ♦ ' E1'''. �� / / / $ IN POOR CONDITION I ! ( I i • / C OWNED INTERMITTENTLY) \ I 1 I I I ! ' �' l / / / R 1 . �' / ♦i 0 I I CLUMP OF DEC / / $- 1 0 1 ' I i 1 I I : (APROX. LOG.) /-/ /'/ / % / GRAVELF '" zl 1 II ►vG 7 11, C1 1 I •., CLU OF DEC 4"!8�' O ,� / // r �} x.wrx.�wn. •) �I� 4-- Y , (APfFOX. LOG.) X01• ; /." % J/ % 1�w w'II WHOM IC 11 AN \ I i LUMP t, / RAMP 0 MI x xtr M. CLUMP OF DEC r�. _` -� / (A C. 1 n- `/ -• ♦ I I ! 0 (APRO%. LOG.) ♦, _ / - /J / • ! ! 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AC `,/', 8248 AC tUt94-t d CO / / c nemuc11 N NOTE$ v \ I- 154.75 AC E WATER=152.,' f ��' 183.00 AC / �, 1191.161.25 ? _ / / - Z Z •S I`/l 1 INSTALL SEDIMENT FENCE - SEE DETAIL. SHEET 5 Z 154.44 AC(E) / I 1 I/1 1 152.75 AC I 41j I,- V J•! / {) 1 I / / / O O INSTALL INLET PROTECTION BARRIER. TYP. ALL INLETS 154.47 AC !! (/ I M. / / SEE DETAL SHEET 5 , / ,�� UG`FEEDFROMNORTH i� I 1 J� /� , / / I• /, > 0 ASIN / ` �.w 1 l I // \ 14. I /� /s; / /� H fi H' z.2' \�/ 2`\ N� �' Is/ / - I( n// n / {/ / • LLj U 154.31 AC(E) ,/ M! __ .._157- '', .7.. .Z // / /4. / /l / / - // CL o �{ / ` \ \� 153.57 AC(E) I/ /.y 1 - / •• /- ?`///` ': / ' O Z - _. 1 4-- /I / 154 2 CB / 1 \\�! p /// ^•ro// 0/ ;� / // / /// .•�..• 0 0 CATCH BASIN--. _ _ / RIM- 153.00 / ',. I / /// � ` ,(: �/ / . /.` - Q ix SUMP EAST 153.53 ACE / � TYF. ` 153.40 At 1 �� - ,// �'+R.' /�..:. /�Ir //T� ' /,• w U LII �� 153.40 AC / , \ / I / I / /' /. t- ,` RIM=153.46' / 1 P ! . 1 1 / f /_/� �S WATER=1.52.91 / 3.4 \ t83A0\ \ // N6 "// / `/� / V/ 0 cy 153.48 AC(E) \ / l 153.7 AC / / X155' - / / / i / / / /// �.'//,.....-,. D \\ �� p w / f /tsSwAc / / -/ -/ /� y/• /� \\\\('\ \ © RIM- 15J.50/ O / / J __ ./ // /� / / r/^ •''' / Qtla.. .- ' 1 \\\\\ \i L-- 1 / / 1 0 ••■ 1 /.. \`` t '' is. �1„ / / v ' a- \\\ Is3.• --159-- / / i- 95 Ac i / 9 / / \\=` -157 / / , yti /�i .�,/�%,� 1`: A g _ :156 \ / '^ rogiiiIrwas l� ,;p • / /i ./,/�C ,: / \\. i- \\ 0 . // / / / / A \ t f 57- --\ Alp / .�;-irrS/./ �/ . /% ,•/ '- / / * W TYP. \ 18170 Ac p�•�y• / ,,,/.2// \ '/. • - .1.•10.1.. \ \ \\ 158- f4-.�/` ` lb / '74.4-'4, - 1 / '' Y••VIII mT. 151 \\ +� �/ / /, �� / 3f'if • # /. ,_, // / ,...„ ,,„, .14., \ ��r 4%� // ' /) WATER E':EVA}ION /'• \ -}52 SaiaLojii /I� . / .7.2,/� / ///,/ (ABOVE NUTRIP. DAM)��s- // I 7 %/.// / .• ON 02-1 -OS= 145.3' /�, §Nt .,2 7 ,,,„„:, 1 : in Nyc‘co„,\,,c,„.„- . . .., . 7,,, , 4.,...%APROX. LOCATION- / , . /. / f / 1/ / g \ 12" CMP OUTFACE / / I/ ; "s APROX. IE= 147.2' /// wATER Ii.EVAf1ON /1 T _ BELOW UTR'A DAM) S O �1J / i SHEET ON 02-'17-O6 = 143.2' / I; 4 , 7 L I L� U / I JOB NO a. 1758-01 I U 17580.C.w0 I 1 I GRADING AND PAVING NOTES: EROS CONTROL NOTES CONTINUED: im i ) 1 a ' 1. PROJECT GRADING UNITS SHALL BE ALL PROPERTY ONES AND STREET RIGHT-OF-WAY, DRY, LOOSE,WEED-FREE STRAW USED AS MULCH SHALL BE APPUED AT DOUBLE THE la. IRx UNLESS OTHERWISE SHOWN CN THE GRADING PLAN. THE BOUNDARIES OF CLEARING LIMITS HYDROMULCH APPUCATION REOUIREMENT(4000 LB./ACRE). ANCHOR STRAW BY SHALL BE CLEARLY FLAGGED IN THE FIELD PRIOR TO CONSTRUCTION. NC DISTURBANCE WORKING IN BY HAND OR WITH EQUI'NENT(ROLLERS,CLEAT TRACKS,ETC.).MULCH • BEYOND THE FLAGGED CLEARING UNITS SHALL BE PERMITTED. FLAGGING SHALL BE MAINTAINED SHALL BE SPREAD UNIFORMLY IMMEDIATELY FOLLOWING SEEDING. BY THE CONTRACTOR FOR THE DURATION OF CONSTRUCTION. , U I 2 B. SOIL PREPARATION-TOPSOIL SHOULD BE PREPARED ACCORDING TO LANDSCAPE 2. A SOTS ENGINEER SHALL BE RETAINED BY TIE DEVELOPER AT THE BEGINNING OF THE PLANS,IF AVAILABLE,OR RECOMMENDATIONS OF GRASS SEED SUPPLIER. IT IS A I r PROJECT TO MONITOR ALL GRADING AND PAVING ACTIVITIES AND FOR ALL COMPACTION RECOMMENDED THAT SLOPES BE ROUGHENED BEFORE SEEDING BY'TR/.C.-WALKING% W iE TESTING IN THE RIGHT-OF-WAY. (DRIVING A CRAWLING TRACTOR UP AND DONN SLOPES TO LEAVE A PATTERN OF CLEAT IMPRINTS PARALLEL TO SLOPE CONTOURS)OR OTHER METHOC TO PROVIDE -`.�•` •' 3. STRAIGHT GRADES SHALL BE RUN BETWEEN ALL FINISH GRADE ELEVATIONS AND/OR FINISH MORE STABLE SITES FOR SEEDS TO REST. d.� ii 11 CONTOUR UNES SHOWN,UNLESS OTHERWISE NOTED. FSi7 C. SEEDING-RECOMMENDED EROSION CONTROL GRASS SEED MIXES ARE AS FOLLOWS. • 4. AU.PROPOSED ELEVATORS SHOWN SHALL BE CONSIDERED TO BE FINISH SURFACE ELEVATIONS, SIMILAR MIXES DESIGNED TO ACHIEVE EROSION CONTROL MAY BE SUBSTITUTED IF /•�II`IQ E INCLUDING REPLACEMENT OF STRIPPINGS,UNLESS OTHERWISE NOTED. APPROVED BY THE AGENCY HAVING JURISDICTION. , �g 5. DUST ABATEMENT SHALL BE MAINTAINED BY ADEQUATE WATERING OF THE SITE. 1.) 10 DWARF GRASS MIX(LOW HEIGHT,By MAINTENANCE): , - , �A IIK��+1 CB DWARF PERENNIAL RYE GRASS,BCX BY 1YE'„HT Sr B.Si o 6. ALL AREAS OF CONSTRUCTION ARE TO BE STRIPPED Cf ALL TOPSOIL AND ORGANIC MATERIALS, CREEPING RED FESCUE, POUNDS N WEIGHT, ff�� AND REPLACED AFTER COMPLETION OF STRUCTURAL GRADING AS DIRECTED. APPl1CATON RAZE 100 POUNDS 4INIMUU PER ACRE i si.i. !'.I 2.) STANDARD HEOCHT CRASS MIX - M 2F 7. CONTRACTOR SHALL REMOVE ALL UNSUITABLE MATERIAL, DEBRIS, AND ORGANIC MATERIALS WITHIN ANNUAL RYE GRASS, 40X BY WEIGHT GRADING AND FILL OMITS PRIOR TO RU.PLACEMENT.BENCH NEW FILL MATERIAL INTO EXISTING TURF-TYPE FESCUE,BOX BY WEIGHT 0 1111 GROUND AS DIRECTED BY THE ENGINEER. APPUCATON RATE 100 POUND MINIMUM PER ACRE B. THE REMOVAL AND DISPOSAL OF UNSUITABLE MATERIAL SHALL BE DONE IN CONSULTATION D. FERTUZATICN FOR GRASS SEED-AS PER SUPPUER'S RECOMMENDATIONS. WITH THE SOILS ENGINEER. DEVELOPMENT AREAS FERTILIZER.50 FEET OF WATER BOOZES AND WETLANDS MUST USE A PLC BLEW / •) NON-PHOSPHORUS FERTUZER. 9. THE CONTRACTOR SHALL UTUZE SUITABLE SUBCRADE MATERIAL FOR ALL FILLS.ALL FILLS IN NTS FINISH PAVED AREAS ARE TO BE PLACED IN 8•UFTS. THE CONTRACTOR SHALL COMPACT EACH E. WATERING-SEEDING SHALL BE SUPPLIED PATH ADEQUATE MOISTURE TO ESTABUSH LIFT TO A DENSITY NOT LESS THAN B1X OF AASHTO T-180. COMPACT SUBGRADE TO A LINE GRASS.SUPPLY WATER AS NEEDED,ESPECIALLY IN ABNORMALLY HOT OR DRY pT.•A• B•OVERLAP , z ONE FOOT BEYOND EDGE OF PAVING,CURBS,SIDEWALKS, AND SIDEWALK EXTENSIONS. SUITABLE WEATHER OR ON ADVERSE SITES. WATER APPUCATON RATES SHOULD BE TYPICAL MATERIAL SHALL BE AS DEFINED BY THE SOILS ENGINEER. ALL TO BE 'PROOFED ROLLED' CONTROLLED TO PROVIDE ADEQUATE MOISTURE WITHOUT CAUSING RUNOFF. TI' W J AS DIRECTED BY THE CITY. PT F. RE-SEEDING-AREAS WHICH FAIL TO ESTABUSH GRASS COVER ADEQUATE TO Q 10. ANY FILL PLACED IN BUILDING PAD AREAS SHALL BE COMPACTED. THE FILL SHALL BE CERTIFIED PREVENT EROSION SHALL BE RE-SEEDED AS SOON AS SUCH AREAS ARE IDENTIFIED, TO MEET THE STRUCTURAL FILL REQUIREMENTS OF THE UNIFORM BUILDING CODE. COMPACTION AND ALL APPROPRIATE MEASURES TAKEN TO ESTABUSH ADEQUATE COVER. NOTE )- STANDARDS SHALL BE AS INDICATED FOR FILL WITHIN FINISH PAVED AREAS ABOVE. PT. 'A•'MUST BE 6• w W 12. THE CONTRACTOR SHALL PROVIDE SITE WATERING AS NECESSARY TO REDUCE WIND EROSION MIN.HIGHER THAN ippi 0-9 0 11. ALL CUT OR Flu.SLOPES SHALL BE CONSTRUCTED AT NO STEEPER THAN TWO(2)HORIZONTAL OF SOIL FINES. PT. 'B' > TO ONE(1)VERTICAL UNLESS AUTHORIZED BY THE SOILS ENGINEER. 13. (NOVEMBER 1 TO APRIL 30): SUPPLEMENTARY WET WEATHER EROSION CONTROL MEASURES Z 12. CONTRACTOR TO HAVE SUFFICIENT NUMBER OF COMPACTION TESTS PERFORMED TO MEET THE SHALL BE USED. WET WEATHER EROSION CONTROL MEASURES SHALL BE PER CITY OF TIGARD. 0 V) CITY OF TIGARD REQUIREMENTS AT THE DEVELOPER'S EXPENSE. TESTS SHALL BE PERFORMED �\/ W BY A QUAUFIED TESTING AGENCY AND WRITTEN RESULTS SHALL BE PROVIDED TO BOTH THE 14. STORM DRAIN INLETS,BASINS,AND AREA DRAINS SHALL BE PROTECTED UNTIL PAVEMENT DITCHES AND SWALES PROTECTION LL ENGINEER AND THE CITY OF TIGARD.SHOULD COMPACTOR REQUIREMENTS NOT BE MET, SURFACES ARE COMPLETED AND/OR VEGETATION IS RE-ESTABUSHED. W '- CONTRACTOR SHALL RE-COMPACT THE FILL AND PAY ALL ADDITIONAL TESTING COSTS. 15. SEEDING SHALL BE PERFORMED NO LATER THAN SEPTEMBER 1 ` 0 Z 13 THE CONTRACTOR SHALL BE RESPONSIBLE FOR ADJUSTING ALL CATCH BASINS,CLEANOUTS, VAULTS,ETC., THAT ARE AFFECTED BY CONSTRUCTION AND/OR FILL TO FINISH GRADE. STORM 16. ESC MEASURES SHALL BE REMOVED BY THE DEVELOPER ONLY WHEN VEGETATION IS FULLY FILTER FARRIC MATERIAL USE STITGIED LOOPS J DRAIN INLET STRUCTURES SHALL BE ADJUSTED SO WATER FLOWS INTO THE STRUCTURE ESTABUSHED. x•WIDE ROILS OVER 2•.2•POSTS FILTER 0 WITHOUT PONDING WATER. ' j FARM ce •14. ALL DIRT SPOILS FROM STREET,PUBUC UTUTY, FOUNDATION, AND DRIVEWAY CONSTRUCTION SHALL \ 1 -T w 0 I- BE DISPOSED OF, HANDLED,OR STORED OUTSIDE THE DRIP ONES OF THE REMAINING TREES. B I OF I LTER BAGS: I _ Z 15. ALL WET WEATHER CONSTRUCTION MEASURES SHALL BE IMPLEMENTED AS DIRECTED BY THE "' • •« �_ 0 SOILS ENGINEER IN ACCORDANCE WITH THE CITY OF TIGARD STANDARDS. o o 1. BIO-FILTR BAGS SHALL BE CLEAN 100 PERCENT RECYCLED WOOD PRODUCT WASTE. •1 • ° •61991 AZT,/1, r•%2f88j�,_,;• },��1, + 16. ASPHALT CONCRETE PAVEMENT MIX SHALL BE DESIGNED FROM A MIX FORMULA APPROVED SIZE OF BAG SHALL BE 1855530 INCHES AND WEIGH APPROXIMATELY 45 POUNDS, I' ` z BY THE SOILS ENGINEER. AND MADE OF 1/2 INCH PLASTIC MESH. - I SIAAPHAA SPACING I CD 0 17. WET WEATHER CONSTRUCTION ALL PROPOSED ROADWAYS SHALL ADD AN ADDITIONAL 12'CF 2. STAKES SHALL BE 2 - 2.52•X3'W000 PEGS DRIVEN THROUGH BAGS AND INTO FRONT VIEW $I DE VIEW `/ - COMPACTED CRUSHED ROCK BASE OVER A NCFI-WOVEN GEOTEXTLE FABRIC UNLESS OTHERWISE GROUND TO A MINIMUM DEPTH OF 12•. NTS NTS 0 RECOMMENDED BY THE SOILS ENGINEER. 3. AT NO TIME SHALL MORE THAN A ONE HALF FOOT DEPTH OF SEDIMENT BE ANGEL BOTH ENDS OF FILTER fAMIC ALLOWED TO ACCUMULATE BEHIND SEDIMENT FENCES AND/OR BIO-FILTER BAGS. <FERCE To AWARE SOIL IS TRMPCO\ W SEDIMENT SHALL BE REMOVED OR REGRADED INTO THE SLOPE,OR NEW ONES OF BARRIERS INSTALLED UPHILL OF SEDIMENT-LADEN BARRIERS. EROS 1 ON CONTROL NOTES: IEOIIS I.MAT BOTTOM OF FILTER IAIRIC S' 2 INTERUXX VERTICALLY BELOW FINISHED GRADE 1. APPROVED EROSION CONTROL MEASURES SHALL BE TAKEN IN ACCORDANCE WITH CITY OF TIGARD POV"fi I AND ATTACH Z 2'. FIR R}SPINE oR STFII STANDARDS. THE CONTRACTOR SHALL PROVIDE ALL MATERIAL,EQUIPMENT,AND PERSONNEL SED I LENT FENCES: , NECESSARY TO MAINTAIN SUCH EROSION PROTECTION MEASURES. ANY DAMAGE CAUSED BY EROSION R� ,,•r NTS 3.STITIXD LOOPS TO DE INSTALLID SHALL BE CORRECTED BY THE CONTRACTOR AT HIS/HER OWN EXPENSE. `GIP Hr 14•HILL sloe a S. E.a r1H`I 1. FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL CUT TO THE LENGTH OF THE T'n 50• 4.COMPACT ALL AREAS CC FILTER FABRIC •, _ SEDIMENT FENC TRENCH. 2. THE IMPLEMENTATION OF EROSION/SEDIMENTATION CONTROL(ESC) PLANS AND THE CONSTRUCTION, BARRIER TO AVOID USE OF JOINTS.WHEN JOINTS ARE NECESSARY,FILTER CLOTH SHALL BE d .eoo OR'M.- 4,4• E MAINTENANCE,REPLACEMENT,AND UPGRADING OF ESC FACILITIES IS THE RESPONSIBILITY OF THE SPUCED TOGETHER ONLY AT A SUPPORT POST.WITH A MINIMUM 6-INCH OVERLAP,AND BOTH d .rte00.p.0 .i �- i t! n • � i. / � r.��2 6' CHAIN LINK 4 a. �� IS�% i f /..;;;4:(:&,,I FENCE Ig � a4 /• 5z1sr "�7 TIGARD WATER o S %- �--'• `ii '- DISTRICT EASEMENT -� GRAPHIC SCALE /� -.'� 6 - •�• (20.00') �a ■ • CATCH BASIN 1 w- 20 F' cA • NS �_ \. SUMP EAST H /Ti/ 111 6.5' W ' \\r! Vi -146.5' �� • 1�Ii ' i.4.�P/ ' �, A// ^ I .., �(, ■ '� RIM147.256 i/ // T NOTES `.� , ti / .. 1 IE-147.26 .0 v �. •.'` / V ... 7.3 LF 12'STOR / nFl6\ �\_ �.�A. �.,� CATTCH BASIN / O E-750.50 \ + �;Pl • 0.0100 o// / O7 INSTALL S16'CLASS'A'RPRAP �p'c �, •I \ SUMP souTH1 N4 .0,' R1 M=151.25 p / / •// i,\ \F IE IN-147.02 RIM=152.73' :? IE our-146.9e / / / Z��Q�� \`L-,\:•,WATER=152.1' \ :;Sc:'' i•,.' / . e s4-ooioo STORM!. / -S • / 1pp po .., �� ,. LARGE LIGHTPOLE . . .\ / PA'MEN �� / . , - 1 J_y W/ 3 BOLLARDS �'��\ % ( , I B^/KEN I RIM-1 .0 • / '� ■ . .• �` t-S,..- v UG FEED FROM NOR TN I 'RUB D CURB) IE w-147.21 - _ A54N EDGE OF / / I IE 14.9 LF 127.17 RTH PAVEMENT �! /Nlu-152.70 14.9 LF t2'STORK 0 Z 83' (wTTH BROKEN t� 1 \ `. I IE;150.70 / •s-o.oloo / / ON 0 Z / 5.9 0.1661 STORM/ / , IX W J 53.2' EXTRUDED CURB) `� �'\ •s-o.taal . -14972 / ' / 4" '' rI `, ■ / 15.3 LF r / /_ ^^ (X a••}`• CB .` / CO t 5-0.0134/ / 8,' >- +� ,, IE-150.50 ` IE-149.52 • , ./^, Q i_ 6.6 LF6'STORY % . •/"/ 4.: 0 / / !Z' J CATCH BASIN-7 •5-0.0909 _ SUMP EAST / ■ / / W O i- \ RIM=153.46; - ( �--�\ WATER=152.9/ - •=15 00 - - / / / �p 11.5 V 1Y STORY . \ RIM-152.75 ,•„W' '��• '• 6.51Lf 6�STORM 1'550 5-0.0.754 ��/ / ' ' p "•L;�^ O S-0.2092 ,/• 3.411F 65 STORM �1• •Y • n•- /'`-'/ , //4 - •S-0.1765 i _ / - 0 � • 14.3 LF 6'STORY IE-149.57 / / / IK M - ' i , " i - . •S40.0050 I. i - - -/ ,- -/ - - ,r'r . ___.-- 8' CHAIN LINK FENCE \\ IE■150.50 A• / / / %�, / • / / I IN POOR CONDITION \ �i'\/ / / � es, \ (OWNED INTERMITTENTLY) / /• i •/ • y •1 \\ CLUMP OF DEC / /-/ _/ . / .i/ _ 8 \ (APROX. LOC.) / / / / 1` O . V /'�c -. / . _ / , ` EDGE OF \ }��CLUMP OF DEC \r/ (;LLI • OF DEC 1.p►�,�. / / // GRAV)t \ (APROX. LOC.) '` (AP OX. LOC) / 'Lc % J %, MI LUMP UE� / , WOW III CLUMP OF DEC 'NA / / (AP>3Ak.10 1 / \\ (APROx. I.00.) -r/ _ - /. / . /- cN \\ -// WATER ELEVATION %', ' 8 / / -I (ABOVE NUTRIA DAM) /� \ f / - " /- ON 02-17-05 = 145.3' / F \ /- \ / //- / '' EDGE OF X' ./ :�'� PAVEMENT \\ • I / / V \ \ / - /-•.•.. -/ - _ / i7 ` \ APROX. LOCATION ■ / �' . /. _ . /' 12" CMP OUTFALL / a APROX. iE= 1 47.2' // WATER iEVATION / (BELOW�NUTRIA DAM) y SHEET ON 02- 7-OS = 143.2' /� 7 I OF (n / JOB NO. 1758-01 !U I]9991C490 I , 'U R iri gh 1.1. • 2 u p, /11142115F.G. FINISH GRADE I 1 s...................a.N NN%‘ II 1540A'NFLAT TOP PRECAST 10 YEAR ORIFICE.1E...149.52 ' I HOLE W/STEPS i • 11 t! S.81 BORE 2.7'ORIFICE ANCHOR RISER [ 1) 1 gii METAL GRATE--RATED FOR 115-20 SHEAR GATE VATH niallis PIPE AS NEEDED IMTH CONTROL ROD ATTACHED HILTY 150 INJECTION t./ CAST IRON PIPE SLEEVE CONNECTOR M TOP STEP ADHESIVE ANCHORS Nmm.. PROADED BY MFR. ■ g. .,,3 L! M =Zell I -I 12'STORM F1PE .."4 I II i.OW- u• MIIIIM/1111111111 ligill -15. IE=1445.94 ,n i W Mil ,411140... 111%-im. 1n12'CROSS STANDARD IA.H. RUNG'S 12'D.C. '--1 LOCATED ON VERT. ...i,E .. •, 1E.146.90 SIDE OF MANHOLE, %MIN 24'CF CLEAN OUT ,dilLowli COVER AND FLOOR W PIPE SUE n Z 2 YEAR ORIFICE 1E=145.40 4A BAFRE IE AS CALLED 2.-0"ROUND OR SQUARE SHEET gor He IN REMOVABLE ,..%):...1.); '1.43..40 OUT ON PLAN 61111116.. METAL CATCH BASIN--DEPTH AS REQUIRED. COAT WITH ASPHALT ..-4 \\\\////\\\\\////\\\\\///;\// EMULSION INSIDE AND OUL AS MFG.BY LYNCH CO.OR EQUAL W 12'U . Cf 3/4.-0"CRUSHED > USE D.I.PIPE UNTL 18"BELOW AGGREGATE COMPACTED TO GRADE 91%Cf 1-180 0 r.,Z CONTROL MANHOLE Ct 6 CATCH BASIN SECTION NOT TO SCALE NOT TO SCALE M 0 - 'CC iMM(D 2 i}II la— .W—.d 4. "„..,....•..7 0McHL l 1 < a. o (/)0 II- .i i zz.E i8 ,,. Eg ig MEMO 0111112 0 g F 1 g to 0 H - 0 . ......... 15 0 SHEET I 1 7 OF 7 .....:0 1755010500 JOB NO. 1758-01 L52; , Exhibit B City of Tigard Minor Modification Type I Application MINOR MODIFICATION A\ MINOR TYPE 1 APPLICATION CITY OF TIGARD 13125 SW Hall Blvd., Tigard, OR 97223 (503) 639-4171 FAX: (503) 684-7297 GENERAL INFORMATION Property Address/Location(s): 8100 SW Hunziker Rd,, Tax Map & Tax Lot#(s): 2S1 0103 00100 FOR STAFF USE ONLY Site Size: 7.58 Ames Case No.(s): Applicant*: Willie HPrt•fnrd, Huttig Rui lding PrndiintS Other Case No.(s): Address: 8100 SW Hunziker Road Receipt No.: City/State: Tigard, OR Zip: 97223 Application Accepted By: Primary Contact: will ie Hertford Date: Phone: (503) 620-1411 Fax: (508) _684-4861 Property Owner/Deed Holder(s)*: (Attach list if more than one) Date Determined Complete: Huttig , Inc. Rev. 1/3/05 i:lcurpinlmasters\revised\minormod.mst Address: 14500 Snnt-h thltPr an Rd_ Phone: City/State: Chesterfield, MO Zip: 63017 " When the owner and the applicant are different people, the applicant must REQUIRED SUBMITTAL ELEMENTS be the purchaser of record or a lessee in possession with written (Note: applications will not be accepted authorization from the owner or an agent of the owner. The owner(s) must without the required submittal elements) sign this application in the space provided on the back of this form or submit a written authorization with this application. ❑ Application Form PROPOSAL SUMMARY The owners of record of the subject property request permission for a Minor ❑ Owner's Signature/Written Authorization Modification. To review a modification as a Minor Modification, the Director ❑ Title Transfer Instrument or Deed must first find that the expansion does not invoke one or more of the 11 criteria discussed within Section 18.120.070(B) of the Tigard Development ❑ Site Development Plan (3 copies) Code. If the modification exceeds the maximum allowed under any one or more of the following criteria, a Major Modification review is required. ❑ Site/Plot Plan (reduced 81/cx 11") Major Modifications are processed in the same manner as a new Site Development Review. In a separate letter, please address the criteria below ❑ Applicant's Statement(3 copies) contained in Section 18.360.050(B) including a detailed response to each (Addressing Criteria Under Section 18.360.050(B) criteria. ❑ Filing Fee $523.00 •00 1. An Increase in dwelling unit density or lot coverage for residential development. 2. A change in the ratio or number of different types of dwelling units. Jurisdiction: ❑ City ❑ Urb 3. A change that requires additional on-site parking in accordance with Chapter 18.765. In addition, the Director must find that the 4. A change in the type of commercial or industrial structures as defined by the proposed change complies with the underlying Uniform Building Code. standards of the applicable zoning district. To 5. An increase in the height of the building(s) by more than 20%. complete this review, the Applicant's proposal 6. A change in the type and location of accessways and parking areas where off-site must include a discussion indicating how the traffic would be affected. site expansion will continue to comply with the 7. An increase in vehicular traffic to and from the site and increase can be expected minimum setback, building height, parking to exceed 100 vehicles per day. land landscaping standards. Other applicable 8. An increase in the floor area proposed for a non-residential use by more than 10% requirements such as minimum Clear Vision excluding expansions under 5,000 square feet. areas near driveways and street intersections 9. A reduction in the area reserved for common open space and/or usable open may also be applicable depending on where space that reduces the open space area below the minimum required by this code the building expansion is proposed to be or reduces the open space area by more than ten percent. constructed on the site. 10. A reduction of project amenities (recreational facilities, screening, and/or, landscaping provisions) below the minimum established by this code or by more s`"s'�"'� � s del„��.► o,t(f lea P �� ^µ than 10%where specified in the site plan. •C✓5 Pro(', k 11. A modification to the conditions imposed at the time of Site Development Review • 5/-0,04 c /c5. APPLICANTS: To consider an application complete, you will need to submit ALL of the REQUIRED SUBMITTAL ELEMENTS as described on the front of this application in the "Required Submittal Elements" box. (Detailed Submittal Requirement Information sheets can be obtained, upon request, for all types of Land Use Applications.) THE APPLICANT(S) SHALL CERTIFY THAT: • The above request does not violate any deed restrictions that may be attached to or imposed upon the subject property. • If the application is granted, the applicant will exercise the rights granted in accordance with the terms and subject to all the conditions and limitations of the approval. • All of the above statements and the statements in the plot plan, attachments, and exhibits transmitted herewith, are true; and the applicants so acknowledge that any permit issued, based on this application, and may be revoked if it is found that any such statements are false. • The applicant has read the entire contents of the application, including the policies and criteria, and understands the requirements for approving or denying the application. SIGNATURES of each owner of the subject property. DATED this day of , 20 Owner's Signature Owner's Signature Willie Hertford, Huttig Building Products Owner's Signature Owner's Signature Exhibit C Figure 5 — Proposed Vegetated Corridor Enhancement Plan I © x..35 Fl x--1 ` 25 12- I / Approved U 50 100 •0 Clean Water Services , - w,. I/1 V,( n -(CA! SCALE IN FEET r _`-+—--—" B! . ----0a `1 1 / " — y....!:. ... f2_, , \ 1 \ i I I \ \ , \\ 1 , \ ' \ / \ 1 1 , . , \ 1 I , = °1, / � C z • IN1 m ' y a I I //� I / e 1 / ;e •••' •••.° : •.•-•-;-� • r ups V . •••"0'114••'441=:-• ::__: I ••-.:.?APP'OXI ATE •211•: '7 .-4'.d:.t.:.•.1. .•:t:•`•=•--•=.. .:. 7 ::'-:::-• CREEK J-:-::-:. ..�. :: .F :.:'•. �:•;-.- •_11.11-''''� _ 4,..:-` LOCH ION ......:.... .... ... . .•. . ; • .• •:•:art:•, . ', \ I 411:' .'- -•:;:yam. •.;.•.••••.•,.•,.;•:*:7 SURVEYED RED .0:0:11,0:46:".440,10..0.1i••: .: •. .......... ............ ROCK CREEK ._•.....•-• ---LOCATION--___-_ ._.__.-.___., • •:•:•�•.-•.r.._• ...... t W \S• 'Vv` V 'V• . v.' • ik I :::::::::::::::: :•:11.10:•:•:•:• PROPOSED VEGETATED CORRIDOR ENHANCEMENT AREA (0.58 ACRE) 6/24/05 Proposed vegetated corridor enhancement areas at the Huttig FIGURE 3167 NHS C= outdoor storage expansion (base map provided by Westlake Consultants, 2005). 5 Enhancement Plantings Botanical Name Common Name Szes Quatity Trees& Shrubs Acar maacpiryllum Bg-leaf maple 1 gallon 81 Arne/nd-1eralrifdia Western serviceberry 1 gallon 305 Hdodsxrsdsrdor Ocearigar arr 1 gallon 305 Salix stchenss Stkawillow 1 gallon 244 N 11 Rasa nutkana Nootka rose 1 gallon 244 7174a plicata Western redceda 2 gallon 81 Psaudotarge meiziesi Dougasfir 2 gallon 81 Grass Seed Mix(10 Ibsla re) %of mixture Agrostisexarata dike bentgass 25% 1.5 Ibs D 40 BO 160 Btr vscarinatus Native California brome 35% 2 lbs ■INI■ Bymusglaucus Bluewildrye 40% 2.25 lbs SCALE IN FEET •��00.00.00.00.0.4.0.444001 NKUruJty vtt�t l tk cv 4.4„......._ r . ,��000.��.00.0.00.0.o��.0.0• CORRIDOR BOUNDARY 0 4.4.00 il , ..x—x x—z x- I 410.10 • • • � ' ••- � '•••••�w*r - as 0. • • L• w 00 0 / �` ,��•0•00 .` �..��•ot,�t,•,••,.,• APPR OXI ATE .,.....________L____ —_�. moo,0�0,044.,0� •i .44, 4 41 I SF BUFFER I . ��'...- .��, .��r REPLACEMENT / CREEK .� ,,. / .':.'... I SURVEYED RED * ��'� I ROCK CREEK .. :.�: , __ - -- -- LOC*TK3N-- --------- , 408 SF BUFFER `= FIGURE 3167 Proposed planting plan at the Huttig outdoor storage expansion (base map provided by 6/24/05 6 Westlake Consultants, 2005). Pacific Habitat Services, Inc. D FWImiPacific Habitat Services , Inc . 9450 SW Commerce Circle,Suite 180 (800)871-9333•(503)570-0800•Fax:(503)570-0855 Wilsonville,OR 97070 June 2, 2005 Clean Water Services 2550 Southwest Hillsboro Highway Hillsboro, Oregon 97123 Re: Huttig Building Products—Vegetated corridor enhancement and planting plan PHS Project # 3167 Introduction A Service Provider Letter was issued for this project on June 27, 2005 (CWS File #2512). Figure 2 (from the approved NRA) identifies the location of the vegetated corridor boundary, which included degraded areas, when the NRA was completed in May of 2005. This submittal includes a landscape plan. Proposed Project As outlined in the original NRA report, Huttig Building Products proposes to expand its existing building footprint to include additional storage/equipment laydown areas. The redevelopment of the site will not result in impacts to the vegetated corridor, or the adjacent sensitive areas. The new impervious surface will extend to the edge of the vegetated corridor in the southwestern portion of the tax lot, as depicted on Figure 4 of the NRA. The vegetated corridor and sensitive areas will be contained in open space tracts, under separate ownership from the proposed lots. As required,permanent fencing and signage will be constructed between the development and the outer limits of the vegetated corridors. Clean Water Services Huttig Building Products—Landscape Plan PHS#3167 Page 2 Proposed Enhancements Although the proposed development is limited to the western portion of the site, the entire vegetated corridor is proposed for enhancement(see Figure 5 of the NRA). Figure 3 of the NRA includes photographs of the enhancement areas. As enhancement is only required for the 50 feet of corridor closest to sensitive areas, no plantings are proposed beyond a distance of 50 feet, though the removal of invasive species will extend to the edge of the proposed development, to help control the spread of Himalayan blackberry(in the western portion of the corridor). Within 50 feet of sensitive areas, installation of woody and herbaceous plantings will follow the removal of Himalayan blackberry thickets and/or English ivy (in the eastern portion of the site). As Himalayan blackberry is present throughout Community A, the primary removal area begins at the stream and continues to the edge of the proposed development. Despite the fact that enhancement is only required within 50 feet of the wetland, the removal of non-natives from the entire corridor and further north will help control the propagation of undesirable species into the required enhancement areas. The areas beyond 50 feet will not, however, be supplemented with woody or herbaceous plantings. Upon the discretion of the landscape contractor, a native grass seed mix may be broadcast into the enhancement areas beyond the 50 feet from sensitive areas. Table 1 includes a list of grass species that would be appropriate for reseeding these areas. Invasive Species Removal Himalayan blackberry and English ivy are the primary noxious non-natives species within the corridor enhancement area. Proper removal of the blackberry canes (in the western portion) and English ivy(in the eastern portion) prior to installation of new plantings will help to control future domination of the enhancement areas. Due to the substantial cover of native plants in the floodplain adjacent to the creek, blackberry removal and control in those areas will be limited to manual methodologies as described in Integrated Vegetation and Animal Management Guide (Clean Water Services, 2003). Although there are very few native plants in the eastern portion of the property, manual removal of English ivy is still recommended, due to the proximity to water quality sensitive areas. Follow up treatments will be necessary throughout all enhancement areas. All native species encountered during removal of invasives will be preserved, to the extent possible. The original removal of English ivy will be followed by hoeing and/or cutting, followed by hand grubbing of seedlings, as necessary during the semi annual maintenance visits. It will be necessary to haul all vegetative remnants of the blackberries and ivy off of the site after maintenance activities, as both species have a propensity for resprouting. Clean Water Services Huttig Building Products—Landscape Plan PHS#3167 Page 3 Planting Plan Table 1 lists the size and number of native plantings to be installed within enhancement planting area(see Figure 9). The number of proposed plantings was determined by the acreage of the planting area (0.11 acre) multiplied by CWS' required planting densities. Based upon recommendations for an upland forest plant community, detailed in Appendix D: Landscape Requirements of Clean Water Services' Design and Construction Standards Resolution and Order 04-09 (R&O 04-09; 2004), the following species were selected: Table 1. Vegetated Corridor Enhancement Plant List Botanical Name Common Name Minimum Recommended Quantity Planting Size Spacing Trees and Shrubs : N Feet On Center Acer macrophyllum bigleaf maple 1 gallon 10 81 Amelanchier alnifolia western serviceberry 1 gallon 5 305 Holodiscus discolor oceanspray 1 gallon 5 305 Pseudotsuga menziesii Douglas-fir 2 gallon 10 81 Rosa nutkana Nootka rose 1 gallon 5 244 Salix sitchensis Sitka willow 1 gallon 5 244 Thuja plicata western redcedar 2 gallon 10 81 Grass Seed Mix Density %of mixture Agrostis exarata spike bentgrass 10 lbs/acre 25 1.5 lbs Bromus carinatus California brome 10 lbs/acre 35 2 lbs Elymus glaucus blue wildrye 10 lbs/acre 40 2.25 lbs In addition to the woody and herbaceous plants, an initial application of native grass seed mix will be necessary in the blackberry removal areas. Hydroseed application will occur at the earliest practicable opportunity following removal of invasives, or following soil preparation or amendment activities. Though the location of trees has been identified on the attached plan, shrubs will be randomly distributed throughout the corridor. Shrubs will be placed and grouped to favor plant survival and encourage massing. All plantings will be installed in winter to early spring, to favor survival. Though not expected to be necessary, the landscape contractor will determine whether soil amendments will be needed at the time of installation. The landscape contractor will, as necessary, receive prior authorization from Clean Water Services before making significant alterations or species substitutions from this landscape plan. The total number of rose and willows has been decreased from Clean Water Services' density requirements due to the existing cover of native vegetation in the western portion of the site. In the western portion of the site, existing shrubs will be supplemented with new plantings, but will receive fewer plantings overall than the eastern and central portions of the enhancement area. Also, because the eastern portion of the site presently has a row of mature trees, additional trees are not specified for that area. However, willows will be installed along the stream throughout its length on-site. Combined with existing vegetation, the density of plantings proposed for the enhancement area is still high enough to achieve the revegetation goals of this project. Clean Water Services Huttig Building Products—Landscape Plan PHS#3167 Page 4 Biodegradable plastic mesh tubing or other approved plant guards will be used around all tree and shrub plantings to discourage wildlife browsing. At a minimum, maintenance of the corridor will occur each spring (April) and fall (September) through the three-year maintenance period. The focus will be on ensuring plant survival and the control of Himalayan blackberry. On-site irrigation will be utilized in planting areas A and B as necessary in order to guarantee plant survival. Replacement plantings will be utilized if plant survival is low. Other landscaping details are outlined in Figure 10: Planting Notes. The contact person for the project is Willie Hertford at Huttig Building Products, 8100 SW Hunziker Rd., Tigard, Oregon 97281. Mr. Hertford's telephone number is (503) 620-1411. Please call with any questions. Sincerely, Shawn Eisner Wetland Scientist Exhibit D Clean Water Services Service Provider Letter File Number CleanWaterr Services Our commitment is clear. Clean Water Services Service Provider Letter Jurisdiction Tigard Date 6-27-05 Map & Tax Lot 2S101BCO2501 Owner Huttig Building Products I Site Address 8100 SW Hunziker Rd. Applicant Willie Hertford Tigard, OR 97223 Address 8100 SW Hunziker Road Tigard, OR 97223 Proposed Activity Level undeveloped area, use Phone (503) 620-1411 gravel surface; store products (503) 620-4177 (fax) (Single lot commercial) IThis form and the attached conditions will serve as your Service Provider Letter in accordance with Clean Water Services Design and Construction Standards (R&O 04-9). IYES NO YES 1 NO -I Natural Resources Alternatives Analysis in II Assessment(NRA) ® ❑ Required Submitted I (Section 3.02.6) 1 District Site Visit ® ❑ Tier 1 Alternatives Analysis Date: Concur with NRA/or ® n Tier 2 Alternatives Analysis submitted information Sensitive Area Present I ❑ Tier 3 Alternatives Analysis On-Site Sensitive Area Present Corridor Ei I Off-Site I ® El Averaging 1---Vegetated Corridor I Vegetated Corridor j Present On-Site ® Mitigation Required Width of Vegetated 12 - 50 feet On-Site Mitigation ® n Corridor(feet) 411 sq ft Condition of Vegetated Degraded Off-Site Mitigation ICorridor Enhancement Required ® ❑ Planting Plan Attached ❑ Encroachment into Enhancement/restoration Concurrent with Vegetated Corridor ® El completion date site I (Section 3.02.4) development. Type and Square Footage 408 sq ft Geotechnical Report ❑ r of Encroachment required [Allowed Use ® n Conditions Attached Z i (Section 3.02.4) Page 1 of 4 File �Number c2 ^4 I1r This Service Provider Letter does NOT eliminate the need to evaluate and protect water quality sensitive areas if they are subsequently discovered on your property. In order to comply with Clean Water Services (the District) water quality protection requirements the project must comply with the following conditions: 1. No structures, development, construction activities, gardens, lawns, application of chemicals, uncontained areas of hazardous materials as defined by Oregon Department of Environmental Quality, pet wastes, dumping of materials of any kind, or other activities shall be permitted within the sensitive area which may negatively impact water quality, except those allowed by Section 3.02.3. 2. No structures, development, construction activities, gardens, lawns, application of chemicals, uncontained areas of hazardous materials as defined by Oregon Department of Environmental Quality, pet wastes, dumping of materials of any kind, or other activities shall be permitted within the vegetated corridor which may negatively impact water quality, except those allowed by Section 3.02.4. 3. Prior to any site clearing, grading or construction the vegetated corridor and water quality sensitive areas shall be surveyed, staked, and temporarily fenced per approved plan. During construction the vegetated corridor shall remain fenced and undisturbed except as allowed by Section 3.02.5 and per approved plans. 4. Prior to any activity within the sensitive area, the applicant shall gain authorization for the project from the Oregon Division of State Lands (DSL) and US Army Corps of Engineers (USACE). The applicant shall provide the District or its designee (appropriate city) with copies of all DSL and USACE project authorization permits. 5. An approved Oregon Department of Forestry Notification is required for one or more trees harvested for sale, trade, or barter, on any non-federal lands within the State of Oregon. 6. Appropriate Best Management Practices (BMP's) for Erosion Control, in accordance with the CWS Erosion Control Technical Guidance Manual shall be used prior to, during, and following earth disturbing activities. 7. Prior to construction, a Stormwater Connection Permit from the District or its designee is required pursuant to Ordinance 27, Section 4.B. 8. The District or City/County may require an easement over the vegetated corridor conveying storm, surface water management, and/or sanitary sewer rights to the District or City that would prevent the owner of the vegetated corridor from activities and uses inconsistent with-the purpose of the corridor and any easements therein. 9. Activities located within the 100-year floodplain shall comply with Section 3.13 of R&O 04-9. 10. Removal of native, woody vegetation shall be limited to the greatest extent practicable. 11. Removal of invasive non-native species by hand is required in all vegetated corridors rated "good". Replanting is required in any cleared areas larger than 25 square feet. 12. Should final development plans differ significantly from those submitted for review by the District, the applicant shall provide updated drawings, and if necessary, obtain a revised Service Provider Letter. Page 2 of 4 • File Number SPECIAL CONDITIONS 13. The vegetated corridor width for sensitive areas within the project site shall be a minimum of 50 feet wide, as measured horizontally from the delineated boundary of the sensitive area. 14. For vegetated corridors 50 feet wide or greater, the first 50 feet closest to the sensitive area shall be equal to or better than a "good" corridor condition as defined in Section 3.02.7, Table 3.2. 15. For vegetated corridors less than 50 feet wide, the entire vegetated corridor shall be equal to or better than a"good"corridor condition as defined in Section 3.02.7, Table 3.2. 16. For vegetated corridors that extend 35 feet from the break in slope, the width of vegetated corridor may be reduced to 15 feet wide if a stamped geotechnical report confirms that slope stability can be maintained with the reduced setback from the break in slope. 17. Clean Water Services shall be notified 72 hours prior to the start and completion of enhancement/restoration activities. Enhancement/restoration activities shall comply with the guidelines provided in Landscape Requirements (R&0 04-9:Appendix D). 18. Prior to installation of plant materials,all invasive vegetation within the vegetated corridor shall be removed. During removal of invasive vegetation care shall be taken to minimize impacts to existing native trees and shrub species. 19. Enhancement/restoration of the vegetated corridor shall be provided in accordance with the attached planting plan and R&O 04-9,Appendix D. 20. Prior to any site clearing, grading or construction,the applicant shall provide the District with the required vegetated corridor enhancement/restoration plan in compliance with R&O 04-9. 21. Maintenance and monitoring requirements shall comply with Section 2.11.2 of R&O 04-9. If at any time during the warranty period the landscaping falls below the 80% survival level, the Owner shall reinstall all deficient planting at the next appropriate planting opportunity and the two year maintenance period shall begin again from the date of replanting. 22. Performance assurances for the vegetated corridor shall comply with Section 2.06.2, Table 2-1 and Section 2.10, Table 2-2. • 23. For any developments, which create multiple parcels or lots intended for separate ownership, the District shall require that the sensitive area and vegetated corridor be contained in a separate tract and subject to a "STORM SEWER, SURFACE WATER, DRAINAGE AND DETENTION EASEMENT OVER ITS ENTIRETY" to be granted to the city or Clean Water Services. 24. The water quality swale and detention pond shall be planted with District approved native species, and designed to blend into the natural surroundings. CONDITIONS TO BE INCLUDED ON CONSTRUCTION PLANS 25. Final construction plans shall include landscape plans. Plans shall include in the details a description of the methods for removal and control of exotic species, location, distribution, condition and size of plantings, existing plants and trees to be preserved, and installation methods for plant materials. Plantings shall be tagged for dormant season identification. Tags to remain on plant material after planting for monitoring purposes. 26. A Maintenance Plan shall be included on final plans including methods, responsible party contact information, and dates (minimum two times per year, by June 1 and September 30). Page 3 of 4 File Number 25;2— 27. Final construction plans shall clearly depict the location and dimensions of the sensitive area and the vegetated corridor(indicating good, marginal, or degraded condition). Sensitive area boundaries shall be marked in the field. 28. Protection of the vegetated corridors and associated sensitive areas shall be provided by the installation of permanent fencing and signage between the development and the outer limits of the vegetated corridors. Fencing details to be included on final construction plans. This Service Provider Letter is not valid unless CWS-approved site plan is attached. Pie. - call 503) 681-3613 with any questions. • -•• • is asey 7 E iro mental PJ i) view Attachments (2) Page 4 of 4 Q C.k.1S-Fl\-R ''25 ►7-- / Approved t . ---------"LT------------°° too Glean Water Services SCALE IN FEET •—-' ey i —---13-ate b-L4 ' I / r j 1 i I / I 1 I 1 I c / 1 1z N1 , 0- !'. PROPOSED VEGETATED • l_j i I `..••:••...01:0.•04••1•0 00:01.10.•0••: CORRIDOR BOUNDAR ' '•'.•''•• :••.•:••:•••••.•!•••.••.••.••.� i :;:.*.rAPPROXI ATE '`� •'•:•, ••••Sr, !*1 �....*$ 411 SF BUFFER -1r I R EPLACEMENT / ':? 1 RED •OCK :;' {;; ::<:::<?:'.. �. / 'REEK LOCA ION SURVEYED RED ..-.:; x r "�•� ' ROCK CREEK ' •--LOCATION ----- ___.._._.., 408 SF BUFFER --- . 11,,, .., 7 ___ ._ __ ; ,r ` REDUCTION \\•\\\� \.,\\� \\.\�� \\v \�_' \� �•. V 6/24/05 FIGURE Proposed development plan at the Huttig outdoor storage expansion 3167 including new impervious surfaces and stormwater facility (base PHS . map provided by Westlake Consultants, 2005). ___ ..- 0 cs -PALcAA' 2512- ' v. Approved 50 100 „, Clean Water Services _ ..... "P_A Fa-e.e.),1 v't(13". AAri2-(CA iL3 =mom. I.. --_, - SCALE IN FEET ! ..—- — -BY—Ac------—-----Date _ / •,.. , 2_ ,. „,,*•..vs-v\- , .., „,....\ „1„ •.„.- ,..:. -„„„ ..„......,:..„„ , \•., sz„: .,• . / . . § If . I 1 , \ : S / \ : I \ / • . /1 k cA / / \ I \ . s c Z / NJ \ 7-- : m , X \ cn -1 ....,., . , m / m / —I / , * / I, opi , .; Eme _—___,_ • 4.• -•:.. 1 4.:•.N.,..,f.w.:01,•pipio, r s ) ,....•••• ive:•••••• :•:,,:;:•:::i:::4;:::;:::::;:-...,,,,_ 4011. le-•-:-:APP•.0X1 ATE ;:::::::■:!:::;:.::;;:::::::::;::z::::•;:iI.---- AwerAlik I :0?..:: .•.” %ED •OCK - °•'•: :.7'!!!;1':!:!:::::**itit;i7;;;;;*;:il --"•• ..,..y-- Ie..... sREEK ii7Iii;f0i;i:f;g1101:111111110/111-65 LOCA ION °;:fiii=. ';:;: ::::::-:: 17,%°. \ .:V.::: .....:.:..1::::.:::7... ,, .!!;:fiAlifi;V:■::=;7::::`%.!::,: I .. .... .... -410: .%%• ."%.*:*:- ... _ 8.1*.0.;:•:"..4.- --"' .' • -- SURVEYED RED .-......z.:.:-:..-..•-• • ...00.-0.;•:•:;!..4. ,..,.. .47••••••••• • :::::::.:••••••:.••••-•••••••:!:::? :401,4-4,, • : ::::::r.:::".. ROCK CREEK "••••••.--s-::.:.::::-..: :.--z...- ,:: •:...... :.:::::::::::::::1:!:!: :11:::::%-..... ---LOCATfON------- ---------- — -- _ „ . - t''1' .: ..' •:,',‘ ' : ... "- :.77t. w.A.2.',:..... ,i7-t sit3e,4' T,‘\`'‘‘. • \\,r ' \\ ‘...., 444444'4% PROPOSED VEGETATED CORRIDOR ENHANCEMENT AREA (0.58 ACRE) 6/24/05 3167 .111 Proposed vegetated corridor enhancement areas at the liuttig FIGURE outdoor storage expansion (base map provided by Westlake I I Nis ,.. Consultants, 2005). 5 Exhibit E Deed SST AMER1e -:- . .,w,- 9 4^ First American Title Insurance Company of Oregon k ° Washington(OR) Prepared For: Prepared By: Ronda Fast Customer Service Department 1700 SW Fourth Avenue - Portland,Oregon 97201-5512 Phone: (503)222-3651 Fax: (503)790-7872 OWNERSHIP INFORMATION Owner :Huttig Inc Ref Parcel Number : 2S 101 CB 00100 CoOwner 7: 02S R: 01W S: 01 Q: 252 Site Address : 8100 SW Hunziker St Tigard 97223 Parcel Number : R0458622 Mail Address :PO Box 1041 Chesterfield Mo 63006 Map Number . Telephone :Owner: Tenant: County : Washington(OR) SALES AND LOAN INFORMATION Transferred :04/05/2001 Loan Amount . Document# : 29042 Lender . • Sale Price Loan Type Deed Type Interest Rate . %Owned Vesting Type . PROPERTY DESCRIPTION ASSESSMENT AND TAX INFORMATION Map Page&Grid : 655 F4 MktLand : $1,485,000 Census : Tract: 307.00 Block:2 Mkt Structure : $2,559,610 Subdivision/Plat MktOther . Neighborhood Cd : YI5 MktTotal : $4,044,610 Land Use : 2312 Misc,Non-mfg,Improvement,Ind Zone M50 Assd Total : $3,237,310 Legal : ACRES 7.58 %Improved : 63 04-05 Taxes : $52,221.59 • Exempt Amount : Exempt Type . Levy Code : 02374 Millage Rate : 16.3101 PROPERTY CHARACTERISTICS • Bedrooms Lot Acres : 7.58 Year Built • Bathrooms Lot SqFt : 330,184 EfJYearBlt . Heat Method Bsm Fin SqFt Floor Cover . Pool Bsm Unfn SqFt : Foundation . Appliances Bsm Low SqFt Roof Shape . Dishwasher Bldg SqFt Roof Matl Hood Fan 1st Fir SqFt InteriorMat . Deck Upper Fir SqFt : Paving Mail . Garage Type Porch SqFt Const Type . • Garage SF Attic SgFt Ext Finish Deck SqFt .• This title information has been furnished,without charge,in conformance with the guidelines approved by the State of Oregon Insurance Commissioner. The Insurance Division cautions intermediaries that this service is designed to benefit the ultimate insureds. Indiscriminate use only benefiting intermediaries will not be permitted. Said services may be discontinued. No liability is assumed for any errors in this report. ,� , 2S 1 01 CB 2S 1 01 CB '�` `�9 � r� . ' ..r :i,,n f s•K i i Q E, k r r ,r� scr 7 a P •‘‘.•n '•' ''' 'W.' '.. •••• 14111 .:2,711 Ll r••i �. ` `"'� 23-7! WASHINGTON COUNTY OREGON tA A F-� 23-74 '. iX�t j i'.rr NW114 SW114 SECTION 01 T2SR1W W.M. ,� SCALE 1' 100' dr tt 4 , t� S 3 ''�' 36 31 32 33: 34 35 J7 Jr• ll � �' �r `FELL J ''-'. fa •i4d:c a�$4 _SJ; 4. i 8 9 4 3 2 8 .. 'F„, r Y fi all; ` 100 33 ra v cd '5 14 73 38 '� f 24 19 20 ?' >? 23 21 IF ' r � 25 34 29 28 IT .�, 25 37 • r { }}r `� ,� 34 33 37 JJ 34 3'S 3d 31 rrc) 4,,...... 1 8 4 3 2 ) d r Yt'^ `\ /: �N.R FOR ADDI/'N/M.1E YIPS YI517 t+(IAWERSI1E 4T,. �� ! O,Iw.a0..r4sningbn.a us SS SA 48 AA Z oils s ,Ip S a 409 4 .. 44. SC 00 AC AD r *WI{ • - SECTION 01 o A Sc 4•4 _ . . CS CA 09 04 yo 1 ". c o ', r apt' �� "E \ «aw CC CA 0C 0D � aw.t} ' aoAr • e 0 N~ .� � t . # PLOT 23-7. O pE s LY• NOT ki ~OR tf£R U =.,.... - w+w.,.nr*+ tm..740'24t.+4444:rr7 «..sn+ } W'MjrVlnku/Rtreef M. 1•71,41'4,-.,?r mi.,,.1.go. •,, !d� • N 4 N q4 4 fe ndr,t �-. .x TlGARD 'r"'"01 2S 1 ()ICS 2S 1 01 CB I ,.' a ♦„ ',C 1 'r``'te,,* & � �4tyw, j�ta.e,..t., 6- i </ as 4 23.7 taste 't F. . -4," ... 04. -' , ,... ,,, ,- ..., , „ , „,. ,. IOC s. 7.411 it r. f µMO* *Ili e 200 4140 STATE OF OREGON SS County of Washington I.JeTy.R;" •bred*of Assess- ment and, • (txf Otlkio County he wit* '• 4.. " " yard and • r„ p1 said• ?wry; l rector of 1lsle*h 1t and Taxation,E'- Doc : 2001029042 Rect: 275900 3831.2€ !! 04/05/2001 03:35: 11ptn I � /nail tax statements to: Hattig Inc. /IOOS.W.HrazukerRd. 14500 South Outer 40 Rd. Tt ,rd,OR N- ChesttrfTeld, 1110 03017 This space provided for recorder's use: When recorded return to: Name: JoAnne P. D'Onofrio.Legal Assistant Address: Kirkpatrick& Lockhart LLP Henry W.Oliver Building t#USHPGT N =NT"' !f 535 Smithfield Street 176 MAL Isro•OVrr rlwatrR r11X Pittsburgh, PA 15222 $37 yy, �6 I - O/ FEE MID Din Quitclaim Deed HUTTIG BUILDING PRODUCTS,INC.,a Delaware corporation("Grantor"),successor by merger to Palmer G. Lewis Co.,Inc.,a Washington corporation,for and in consideration of Ten and no/100 Dollars($10.00)in hand paid,conveys and quitclaims to HUTTIG,INC.,a Delaware corporation("Grantee"),the following described real estate A TRACT of land situate in the W W.Graham D.L.C. No. 39.situated in Sections 1 and 2. Township 2 South,Range 1 West Willamette Meridian.Washington County. Oregon,more particularly described as follows: COMMENCING at the most Southerly corner of that certain tract of land conveyed to R.T. and E.Corporation and recorded in Book 396.page 711,Deed Records of said County;thence South 41 degrees 41 minutes 40 seconds East.a distance of 613.37 feet to an iron rod on the Northwesterly line of that certain tract of land conveyed to Tillie Zurcher.et vir.by Deed recorded in Book 315.page 308,Deed Records;thence North 46 degrees 54 minutes 12 seconds East along said Northwesterly line a distance of 600.00 feet to an iron rod and the point of beginning of the tract herein to be described;thence North 41 degrees 38 minutes 36 seconds West a distance of 590.87 feet to a point in a line parallel with and 60.00 feet Southeasterly of (when measured at right angles to)the Southeasterly line of that certain tract described in contract recorded in Book 399.page blb, Deed Records;thence North 43 degrees 19 minutes 00 seconds East.parallel with said Southeasterly line,a distance of 121.87 feet to a point; thence North 28 degrees 57 minutes 34 seconds East.continuing parallel with said Southeasterly line,a distance of 310.30 feet to a point in the Southwesterly line of S.W. Hunizker Road;thence South 60 degrees 57 minutes 15 seconds East.along said Southwesterly line,a distance of 630.90 feet to a point in the Westerly line of that certain tract of land described in contract recorded in Book 398.page 482. Deed Records: thence South 28 degrees 54 minutes 17 seconds West along said Westerly line a distance of 302.24 feet to an iron pipe: thence South 46 degrees 54 minutes 12 seconds West a distance of 337.84 feet to the point of beginning. PI-,31675 vl U22457U-0201 =OW MINIM•i■ • l • TOGETHER with a non-exclusive easement and right of way for a railroad spur track over a portion of Section 1.Township 2 South.Range 1 West,Willamette Meridian,Washington County.Oregon.as said easement is set forth in that certain document executed by Harry M. Gazeiey,ct al.,recorded July 26, 1957 in Book 396,page 323,and in Deed recorded in Book 426.page 612.Deed Records of Washington County,Oregon. TOGETHER with an easement for railroad spur track over and across the Westerly portion of that certain parcel of land described in Deed to Western Foundry Company.recorded April 17, 1958 in Book 404.page 23,Deed Records of Washington County.Oregon,as set forth in that Agreement between Palmer G. Lewis Co.,Inc.and Western Foundry Company.dated April 7, 1977. BEING the same premises granted and conveyed to Palmer G. Lewis Company,a Washington Corporation,by Deed from Western Foundry Company,an Oregon corporation,dated April 18, 1977 and recorded on April 20, 1977 in the Recorder of Deeds Office of Washington County, Oregon,in Book 1159,page 693. Pursuant to Articles of Merger filed December 31, 1991 filed with the Delaware Secretary of State.Palmer G. Lewis Co..Inc..a Washington corporation.merged into Huttig Sash&Door Company,a Delaware corporation. By Restated Certificate of Incorporation filed on September 21, 1999,filed with the Delaware Secretary of State.Huttig Sash&Door Company changed its name to Huttig Building Products,Inc..a Delaware corporation,the Grantor herein. Copies of these instruments are attached hereto as Exhibits A and B, respectively. 3j4Vt.IN x001 Dated: Decoder a",200,effective as of December 31,2000. ATTEST: HUTTIG BUILDING PRODUCTS,INC., Q aDe , . •oration ._,,,if... __-ta- l By: vil.1 lia P_ reAci - Title: •RG 0—\ 4(60 g • State of /h03/At RI County of 51.L.vutS SAimA R•( 1c01 On this ,.µ" day of Decor,2,0.before me.the undersigned,a Notary Public in and for the State of ,KrSSouR r ,duly commissioned and sworn,personally appeared lent Y 5• y�� _and tome know to be thegsteti,f a cepof Huttig Building Products,Inc..a Delaware corporation and executed the foregoing instrument,and acknowledged the said instrument to be the free and voluntary act and deed of said corporation,for the uses and purposes therein mentioned,and on oath stated that he was authorized to execute the said instrument and that the seal affixed is the corporate seal of said corporation. Witness my hand and official seal hereto affixed the day and year first above written. Notary Pu is in and for the State of .5.0 4 " NOTARY SEAL" Mary Ann Morcom,Notary Public St,Louis County,State of Missouri My Commission Expires 7/31/2001 33 OEXHISIT ETATE OF DELAWARE SECRETARTOF STATE D:vlsioa or CORPORATIONS FILED 10:00 AM 12/31/1991 721565063 — 34220 CERTIFICATE OF OWINERSHIP AND MERGER MERGING PALMIR G. LEWIS CO., INC. INTO RUTTIG SASH & DOOR COMPANY Pursuant to § 253 of the General Corporation Law of the State of Delaware EUTTIG USE i DOOR COMPANY, a corporation organized and existing under the laws of the State of Delaware, DOES HEREBY CERTIFY AND AGREE: �J FIRST: That it was incorporated pursuant to the provisions of the General Corporation Law of the State of Delaware on the 2nd day of January, 1913. SECOND: That it owns all of the outstanding shares of each class of the capital stock of Palmer G. Lewis Co., Inc., a corporation incorporated pursuant to the provisions of the Washington Business Corporation Act cn the sixteenth day of May, 1988. THIRD: That the Board of Directors of Huttig Sash & Door Company pursuant to unanimous consent in lieu of a meeting effective on the .77.0 day of December, 1991, determined to merge Palmer G. Lewis Co. , Inc. into Huttig Sash & Door Company and adopted the resolutions set forth on Exhibit A attached hereto and made a part hereof. FOURTH: That the laws of the State of Washington permit a corporation organized under its laws to merge with a corporation of another jurisdiction. IN WITNESS WHEREOF, RUTTIG GASH i DoOR COMPANY caused this certificate of Ownership and Merger to be signed by its President and attested by its _ Secretary, this -214 day of December 1991. HUTT a SASH & R . PANY AL. President ATTEST: Secretary iinimummimaniminen____.., . STATE OF f'4 ±101—____ ORS f { ' } appeared •- thic�._ p •ay of December, 1991, before me personally being by me duly sworn, ''d say that he is is known, who, r Euttig sash i Door Company, a Delaware corporation, Pd that t said id instrument was signed and sealed on behalfofa said corp ration by authority of its Board of Directors; and said acknowledged said instrument to be the free act and dee of said corporation. IN TESTIMONY WHEREOF, I have hereunto set my hand and affixed my official seal in the '/ and State aforesaid, the day and year first above written. c (<::„..,--/—e/1.2•40.....4.4-,........,....j Notary Public (SEAL) My Commission Expires: ST.C.::: i:i:i::( ♦ 1:347;[)6/3 2 ti $XHIBIT s RESOLVED, that Huttig Sash & Door Company merge said Palmer G. Lewis Co., Inc. with and into itself, and assume all of said Palmer G. Lewis Co., Inc.'s obligations, all pursuant to the Plan of Merger set forth on Yxhjjt attached hereto and incorporated by reference herein; and FURTHER RESOLVED, that the merger shall be effective upon the latter of (i) the proper filing with the Secretary of State of the State of Delaware of a Certificate of Ownership and Merger with respect to the merger and (ii) the proper filing with the Secretary of State of the State of Washington of Articles of Merger with respect to the merger; and FURTHER RESOLVED, that President and any Vice President of the Corporation, and each of them, be and they hereby are authorized and directed for and on behalf and in the name of the Corporation to execute a Certificate of Ownership and Merger setting forth a copy of the resolutions to merge said Palmer G. Lewis Co., Inc. and assume its liabilities and obligations, the date of adoption thereof, and such other information as may be required by law; and the Secretary and any Assistant Secretary of the Corporation, and each of them, be and they hereby are authorized and directed to attest thereto, to the extent required by law; and the officers of the Corporation, and each of them, be and they hereby are authorized and directed to cause the same to be filed with the Secretary of State of Delaware and a certified copy recorded in the office of the Recorder of Deeds of New Castle County, Delaware and to do all acts and things whatsoever, whether within or without the State of Delaware, which may be in anyway necessary or proper to effect said merger; and FURTHER RESOLVED, that this Corporation qualify to do business as a foreign corporation in the State of Washington and such other states as the President of this Corporation, in his sole discretion, may deem appropriate; and FURTHER RESOLVED, that the President and any Vice President of the Corporation, and each of them, be and they hereby are authorited and directed for and on behalf and in the name of the Corporation to make and execute Articles of Merger setting forth a copy of the Plan of Merger and such other information as may be required by the Washington Business Corporation Act; and the Secretary and any Assistant Secretary of the Corporation, and each of them, be and they hereby are authorized and directed to attest thereto, to the extent required by law; and the officers of the Corporation, and each of them, be and they hereby are authorized and directed to cause the same to be filed with the Secretary of State of Washington, and to do all acts and things whatsoever, whether within or without the State cf Washington which may be in anyway necessary or proper to effect said merger; and FURTHER RESOLVED, that the officers of the Corporation, and each of them, be and they hereby are authorized and directed to do any and all other acts and execute and deliver any and all other documents as they, and each of them, deems appropriate to accomplish the purposes of the foregoing resolutions and each of them, and said actions heretofore taken to accomplish the purposes of the foregoing resolutions are hereby in all respects ratified, affirmed, approved and confirmed. fI 11)SSocce/2 - 2 - 7 r""ummilim" "millisr INIIIIIIMMINEMINIMMIL Nan ringegiummtzmuna • • N IfIT 1! FLAN OF MUGU 1. Terms and Conditions. At the Time of Merger (as defined in paragraph 7 of this Plan of Merger (the "Plan")): (a) Palmer G. Lewis Co., Inc., a Washington corporation ("PGL"), shall be merged with and into Huttig Sash & Door Company, a Delaware corporation ("Huttig"), and Huttig thenceforth shall be, and is designated in this Plan as, the "Surviving Corporation"; (b) The separate existence of PGL shall cease; and (c) The Surviving Corporation shall thereupon and thereafter possess all the rights, privileges, immunities and franchises of a public nature as well as of a private nature, of each of PGL and Huttig; and all property, real, personal and mixed, and all debts due on whatever account, and all other choses in action, and all and every other 4 interest, of or belonging to or due to each of PGL and Huttig, shall be taken and deemed to be transferred to and vested in the Surviving Corporation without further act or deed; and the title to any real estate or any interest therein vested in PGL or Huttig shall not revert or be in any way impaired by reason of the merger; and the Surviving Corporation shall thenceforth be responsible and liable for all the liabilities and obligations of each of PGL and Huttig; and any claim existing or action or proceeding by or against PGL or Huttig may be prosecuted as if the merger had not taken place, or the Surviving Corporation may be substituted in its place; and neither the rights of creditors nor any liens upon the ' property of PGL or Huttig shall be impaired by the merger. 2. Officers and Directors. From and after the Time of Merger, the officers and directors of Huttig shall continue in office as the officers and directors of the Surviving Corporation until their respective successors are duly elected and qualified in accordance with the bylaws of the Surviving Corporation. 3. Further Assurances. If at any time the Surviving Corporation shall deem or be advised that any further grants, assignments, confirmations or assurances are appropriate or advisable to vest, perfect or confirm, ooff� record or otherwise, in U , the Surviving Corporation the title to any property of PGL acquired or to be acquired by or as a result of the merger, the officers and directors of PGL shall be and hereby are severally and fully authorized to execute and deliver any and all such deeds, assignments, confirmations and assurances and to do all other things appropriate or advisable so as to best prove, confirm and ratify title to such property in the Surviving Corporation and otherwise carry out the purposes of the merger and the terms of this Plan. 4. Conversion of PGL Shares. The outstanding shares of PGL, the subsidiary corporation, shall be canceled as a result of the merger. 5. Stock ownership of Parent. Huttig, the parent corporation, owns, and immediately preceding the Time of Merger will own, one hundred percent (1001) of the issued and outstanding shares of PGL, the subsidiary corporation. 6. Certificate of Incorporation of Surviving Corporation. Following the Time of Merger, the Certificate cf Incorporation of Huttig shall be the certificate of incorporation of the Surviving Corporation, without any amendment as a result of the merger. 7. Time of Merger. The merger contemplated by this Plan shall become effective upon the latter of i) the proper filing with the Secretary of State of the State of Delaware of a Certificate of Ownership and Merger with respect to the Merger and ii) the proper filing with the Secretary of State of the State of Washington of Articles of Merger with respect to the Merger, (Such time is referred to herein as the "Time of Merger".) S. Shareholder Notice of Plan of Merger. Within ten (10) days of the adoption of this Plan of Merger by the Board of Directors of Huttig, Huttig shall mail a copy of this Plan of Merger to each shareholder of PGL. Eil . :TA rr or ( LA w t SI CRd rAk r OF SfA TS CIVISION OF CnkPOkATIONS FILW 09:00 M 09/22/1999 991394910 - 0034710 RESTATED CERTIFICATE OF INCORPORATION OF HJTTIG SASH&DOOR COMPANY The name of the Corporation is HIJTTIO SASH&DOOR Cocoon's original Certificate of incorporation was filed with the Secretary MPANY. The State of Delaware on January Z, 1913. of State of the This Restated amends the Certificate Certificate of Incorporation restates and arts and also fiather f mend tithe C and was incorporation of the Corporation,as heretofore amended and 'wed in accordance with the provisions of Section 242 and 245 of the dal Corporation Law of the State of Delaware. ARTICLE I The name of the corporation(hereinafter called the"Corporation;,is Nuttig . Building Prod,Inc ARTICLE D The address of the Corporation's registered office in the State of Corporation Trust Center, 1209 Orange Street, Wilma Delaware is Corporation's registered agent at such address is The Corporation po�ln m a 1 Company The name of the The county is New Cas 1e. TrvstComp� Y ARTICLE III any lawful The purpose or purposes for which the Corporation is organized C wful wiry for which a corporation may organized der the are to engage in of Delaware. Y be or under ARTICLE IV The total number of sbarea of all classes of stock which shall have a�oriry to issue is Fifty !u h the Corporation Value S.OI per abase("Common Stock"),Million(5O,OOo,OpO)shares of common stock,par preferred stock,par value S.01 per share("preferrted Million Stock").5.000,000)charts of The following is a description of each oldie classes of stock of the Corporation and a statement of the powers.preferersces,and right,of such stock,and the qualifications and restrictions thereof. 1 o • J� (a) At all meetings of the shareholders of the Corporation the holders of the Common Stock shall he entitled to one vote for each share of Common Stock held by them respectively. (b) Shares of the Preferred Stock may be issued from time to time in one or more series as may from titre to time be determined by the Board of Directors of the Corporation. Each:cries shall be distinctly designated. Except as otherwise provided in the resolution setting forth the designations and rights of the series of?referred Stock, all shares of any one suits of Preferred Stock shall be alike in every particular,except that there may be different dates from which dividends(if any)thereon shall be cumulative,if made cumulative. The relative preferences,participating,optional and other special rights of each such series,and limitanons thereof,if any,may differ from those of any and all other series at any time outstanding. The Board of Directors of the Corporation is hereby expressly granted authority to fix by resolution or resolutions adopted prior to the issuance of any shares of each particular series of the Preferred Stock,the designation,preference,and relative,participating,optional or other rights,if any,or the qualifications,limitations or restrictions thereof;if any,of such series, including,but without limiting the generality of the foregoing,the following: (1) the distinctive designation of,and the number of shares of the Preferred Stock which shall constitute the series,which number may be increased (except as otherwise fixed by the Board of Directors)or decreased(but not below the number of shares thereof then outstanding)from time to time by action of the Board of Directors; (2) the rate and times at which,and the terms and conditions upon which,dividends,if any,on shares of the series may be paid,the extent of preferences or relation,if any,of such dividends to the dividends payable on any other class or classes of stock of the Corporation,or on any series of the Preferred Stock or of any other class or classes of stock of the Corporation,and whether such dividends shall be cumulative,partially cumulative or non-cumulative, (3) the right,if any,of the holders of shares of the series to convert the same into shares of any other class or classes of stock of the Corporation or any of its subsidiaries,and the terms and conditions of such conversion; • (4) the right,if any,of the holders of shares of the series to exchange the same for any other class or classes of stock of the Corporation or any of its subsidiaries or for any other property that the Board of Directors may determine,end the terms and conditions of such exchange; (5) whether shares of the series shall be subject to redemption and the redemption price or prices and the time or times at which,and the terms and conditions upon which,shares of the series may be redeemed; -2- 1 1 • ___asi._ ammo isenne • (6) the rights,if any,of the holders of shares of the series upon voluntary or Involuntary liquidation,merger,consolidation,distribution or sale of assets, dissolution or winding-up of the Corporation; (7) the terms of the sinking fund or redemption or purchase account,if any,to be provided for shares of the series;and (8) the voting powers,if any,of the holders of shares of the series which may,without limiting the generality of the foregoing,include the right, voting as a series by itself or together with other series of the Preferred Stock or all series of the Preferred Stock as a class,(1)to cast more or less than one vote per share on any or all matters voted upon by the shareholders,(2)to elect one or more directors of the Corporation in the event there shall have been a default in the payment of dividends on any one or more series of the Preferred Stock or under such other circumstances and upon such conditions as the Board of Directors may fix. (c) The relative preferences,rights and limitations of each series of Preferred Stock in relation to the preferences,rights and limitations of each other series of Preferred Stock shall,in each cast;.be as fixed from time to time by the Board of Directors in the resolution or resolutions adopted pursuant to authority granted in this Article IV,and the consent by class or series vote or otherwise,of the holders of the Preferred Stock of such of the series of the Preferred Stock as are from time to time outstanding shall not be required for the issuance by the Board of Directors of any other series of Preferred Stock whether the preferences and rights of such other series shall be fixed by the Board of Directors as senior to,or on a parity with,the preferences and rights of such outstanding series,or any of them;provided,however,that the Board of Directors may provide in such resolution or resolutions adopted with respect to any series of Preferred Stock that the consent of the holders of a majority(or such greater proportion as shall be therein fixed)of the outstanding shares of such series voting thereon shall be required for the issuance of any or all other series of Preferred Stock. (d) Subject to the provisions of the preceding paragraph(c),shares of any series of Preferred Stock may be issued from time to time as the Board of Directors shall determine and on such terms and for such consideration,not less than the par value thereof,as shall be fixed by the Board of Directors. ARTICLE V Board at Directors Section 1. Number. The business and affairs of the Corporation shall be managed under the direction of the Board of Directors which shall consist of not less than three nor more than fifteen persons. The exact number of directors within the minimum and maximum limitations specified in the preceding sentence shall be fixed from time to time by the Board of Directors pursuant to a resolution adopted by a majority of the entire Board of Directors. wmiwar • Section 2. Election and Terms. The directors shall be divided into three classes,as nearly equal in number as reasonably possible,with the term of office of the first class to expire at the 2000 Annual Meeting of Stockholders,the term of office of the second class to expire at the 2001 Annual Meeting of Stockholders and the term of office of the third class to expire at the 2002 Annual Meeting of Stockholders. At each Annual Meeting of Stockholders, directors elected to succeed those directors whose terms expire shall be elected for a term of office to expire at the third succeeding Annual Meeting of Stockholders after their election. Section 3. Newly Crated Directorships and Vacancies. Newly created directorships resulting from any increase in the authorized number of directors or any vacancies in the Board of Directors resulting from death,resignation,retirement,disqualification,removal from office or other cause shall be filled only by a majority vote of the directors then in office, and directors so chosen shall bold office fora term expiring at the Annual Meeting of Stockholders at which the term of the class to which they have been elected expires. No decrease in the number of directors constituting the Board of Directors shall shorten the term of any incumbent director. Section 4. Removal. Any director,or the entire Board of Directors,may be retrieved from office at any time,but only for cause and only by the affirmative vote of the holders of at bast two-thirds of the voting power of the shares then entitled to vote at an election of directors,voting together as a single class. Section 5. Amendment,Repeal,etc. Notwithstanding anything contained in this Certificate of Incorporation to the contrary,the affirmative vote of the holders of at least two-thirds of the voting power of the then outstanding shares entitled to vote thereon pursuant to Article IV,voting together as a single class,shall be required to amend or repeal,or adopt any provisions inconsistent with,this Article V. ARTICLE VI Stockholder Action Any action required or permitted to be taken by the stockholders of the Corporation must be effected at a duly called annual or special meeting of stockholders of the Corporation and may not be effected by any consent in writing by such stockholders. Special meetings of stockholders of the Corporation may be called only by the Chairman of the Board of Directors or by the Board of Directors pursuant to a resolution approved by a majority of the entire Board of Directors. At a special meeting of the stockholders,only such business shall be conducted as shall be specified in the notice of meeting(or any supplement thereto). Notwithstanding anything contained in this Certificate of Incorporation to the contrary,the affirmative vote of the holders of at least two-thirds of the voting power of the then outstanding shares entitled to vote thereon pursuant to Article IV,voting together as a single class,shall be required to amend or repeal,or adopt any provisions'inconsistent with,this Article VI. -4- 1.3 ..,.._..........�....�..o.�.. N.wso.mmiu. vum-spaormilikawararmar :.a e t i ARTICLE VII By-law Amendments The Board of Directors shall have the power to make,alter,amend or repeal the By-laws of the Corporation by such vote as may be specified therein. The affirmative vote of the holders of two-thirds or more of the voting power of the then outstanding shares entitled to vote thereon pursuant to Article IV,voting together as a single class,shall be required for the stockholders to make,alter,amend or repeal the By-laws. Notwithstanding anything contained in this Certificate of Incorporation to the contrary,the affirmative vote of the holders of at least two-thirds of the voting power of the then outstanding shares entitled to vote thereon pursuant to Article IV,voting together as a single class,shall be required to amend or repeal,or adopt any provisions inconsistent with,this Article VII. ARTICLE VIII No director of the Corporation shall be liable to the Corporation or its stockholders for monetary damages fix breach of fiduciary duty as a director,except for liability (i)for any breach of the director's duty of loyalty to the Corporation or its stockholders,(u)for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law,(iii)under Section 174 of the Delaware General Corporation Law,or(iv)for any transaction from which the director derived an improper personal benefit If the General Corporation Law of the State of Delaware is hereafter amended to authorize corporate action further limiting or eliminating the personal liability of directors,then the liability of a di.ector to the Corporation shall be limited or eliminated to the fullest extent permitted by the General Corporation Law of the State of Delaware,as so amended from time to time. No repeal or modification of this Article VIII,directly or by adoption of an inconsistent provision of this Certificate of Incorporation,by the stockholders of the Corporation shall be effective with respect to any cause of action,suit,claim or other matter,that,but for this Article VIII,would accrue or arise prior to such repeal or modification. IN WITNESS WHEREOF,the Corporation has caused this Restated Certificate of Incorporation to be executed by the undersigned duly authorized officer on September 21, 1999. Ili ASH& a 4R COMPANY r By' I�w d.,..�a David S. f ith Vice Pr•"dent-Finance -5- iq . . Exhibit F City of Tigard Transportation System Plan, Figure 7-2 Existing Transit Coverage ........ - - DKS Associates i•. --44,J,EX - . d. CITY OF TIGARD _... 1 NO1 I OREGON TO SCA:F 7- •`' . , , `.-- 0 . ..: _... .:. -t [ 9: 1' l'A'''Allaa'. - -5 Transportation ) 'ir '---, • . Systems Plan * —.....-.....-------------------- ------------ 1 i I 4 . , , Legend i --i---\I . 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' :.....-.1 r .r) 4- i 1 I ,\i • . , r-0' 1 1 i .._...... _ -.....,, • •-• 1-- _i_ LL...›.:, ! ‘ If till ''\/ 'if- ;1 .-,c i • , , ! 0. ; i„, ,_,,2 , ,t,,,-.4,, , 4 •1•- .. -4 ' s 44 i "TTH L_ j ---, .., -1--')')•4".,,„ es ,. ,„ . ' -,• '-'T•i•'Fr:Li 1". I — — ' ■ i • r!.• 4.0: s • „•. .., s . I __v._ 1, .., ”. 'gi . ',...:0-, ,:- .. L.. , 1 . , Figure 7-3 1 .' - - -.. 1 ... . -• . . ,) Future Transit .. \ --.... .._, Coverage 1 1,, i4t.4:i , I • . , a ca O z CI. 0 ._1 _ _1 _0•3 _ ■ alit f Fv c ; *, s, `t. - i #0;!Itals+Ylalitist; ler **Ii s Sal. . •fit*>I *7, .. •4110w►tIsli#iti6s + it li st Ot**arrow 416 MCI#.. tiessasittrairz aasss ir#asioss mil 0 Exhibit G Preliminary Stormwater Calculations Preliminary Stormwater Report for Huttig Storage Addition Tigard, Oregon April 13, 2005 HUTTIG STORAGE ADDITION Tigard, OR Table of Contents 1.0 PROJECT OVERVIEW 1.1 Introduction 1.2 Analysis Purpose 1.3 Water Quality Calculations 1.4 Detention Calculations 2.0 WATER QUALITY CALCULATIONS 2.1 Total Impervious Area 2.2 Water Quality Volume 2.3 Water Quality Flow 2.4 Water Quality Swale Design 3.0 DETENTION CALCULATIONS 3.1 Pre-developed Conditions 3.2 Pre-developed Runoff Rates 3.3 Developed Conditions 3.4 Developed Runoff Rates 3.5 Pond Outlet Design 4.0 PRE-DEVELOPED RUNOFF CALCULATION REPORTS 5.0 DEVELOPED RUNOFF CALCULATION REPORTS 6.0 REFERENCE TABLES & MAPS HUTTIG STORAGE ADDITION Tigard, OR 1.0 PROJECT OVERVIEW 1.1 Introduction This project is located at 8100 SW Hunziker St and the site area is 7.58 acres. The site is mostly developed with a warehouse,parking areas,and paved areas for storing of lumber materials. The southwest corner of the property is currently undeveloped. The existing site runoff is collected through downspouts and catch basins and is collected into a private storm system which drains into Fanno Creek. Fanno Creek is located along the east property line. No grading activity will occur within the 100-year flood plain and no new structures will be placed within 50 feet of the 100-year flood plain. This development will provide additional paved area for storage of lumber materials. The new paved area, approximately 32,995 sq.ft.,will encompass a portion of the undeveloped area located in the southwest. The remaining undeveloped area will be used for excess fill,the new water quality and detention facility and for landscaping. The detention&water quality facility will be design according to the requirements set forth in Clean Water Services"Design and Construction Standards for Sanitary Sewer and Surface Water Management",March,2004. The outfall from this facility will be directed into Fanno Creek. 1.2 Analysis Purpose The purpose of this preliminary analysis is to determine the following: 1. Water quality treatment rate. 2. Pre-developed and developed drainage basin runoff rate. 3. Required detention volume. 1.3 Water Quality Calculations For water quality,the system shall treat the total precipitation of 0.36 inches falling in 4 hours with a storm return period of 96 hours. The water quality treatment rate was calculated to be 0.28 cfs. A grassy swale will be constructed to achieve water quality treatment and will be designed according to the Clean Water Services requirements. 1.4 Detention Calculations The detention requirement states that the developed peak runoff rates for the 2-year, 10-year and 25-year shall not exceed their respective pre-developed peak runoff rates. The Santa Barbara Urban Hydrograph modeled with a Type lA storm was used to determine the basin runoff. The 2, 10&25-year storm was evaluated to determine the basin peak runoff. Rainfall data for each storm was obtained from Clean Water Services. The existing soils within the property are classified as SCS Group C soils. These were obtained from USDA maps and are attached. * See attached reports from HydroCAD, a stormwater modeling software, for all basin runoff calculations and swale and detention pond sizing. HUTTIG STORAGE EXPANSION Tigard, OR 2.0 WATER QUALITY CALCULATIONS 2.1 Total impervious area New storage impervious area=32,995 sq. ft. 2.2 Water Quality Volume WQV (cf)=0.36(in)x Impervious area(sf) 12(in/ft) =0.36(in)x 32,995 (sf) 12(in/ft) = 990 cubic feet 2.3 Water Quality Flow WQF(cfs)=Water Quality Flow(cf) 14,400(sec) = 990 cf 14,400(sec) = 0.07 cfs 2.4 Water Quality Swale Design Bottom Side Manning's Swale Peak Length Peak Peak Travel Width Slope "n" Slope Inflow(CFS) Velocity(ft/s) Depth(ft) Time 2' 4:1 0.24 0.50% 0.07 100' 0.12 0.19 13.6min HUTTIG STORAGE ADDITION Tigard, OR 3.0 DETENTION CALCULATIONS 3.1 Pre-developed Conditions Drainage Basin Area=32,995 sq. ft. CN=76(woods/grass combination,Group C soils) 3.2 Pre-developed Runoff Rates 2-year(2.5")=0.12 cfs 10-year(3.45")=0.25 cfs 25-year(3.9")=0.33 cfs 3.3 Developed Conditions Drainage Basin `1' area=32,995 sq. ft. CN=98 (pavement) 3.4 Developed Runoff Rates 2-year(2.5")=0.44 cfs 10-year(3.45")=0.62 cfs 25-year(3.9")=0.70 cfs 3.5 Pond Outlet Design Storm Peak Peak Allowable Orifice Invert Peak Storage Event Inflow(CFS) Outflow(CFS) Outflow(CFS) Size Elevation Stage (cu.ft.) 2-year 0.44 0.12 _ 0.12 1.6" 146.90' 149.62' 1,041 10-year 0.62 0.23 0.25 2.7" 149.62' 150.01' 1,512 25-year 0.70 0.26 0.33 — — 150.10' 1,653 HUTTIG STORAGE ADDITION Tigard, OR 4.0 PRE-DEVELOPED RUNOFF CALCULATION REPORTS E •xis in on � ions Drainage Diagram for Huttig Storage Addition Subcat Reach Pon � Link 9 9 9 9 Prepared by Westlake Consultants, Inc. 4/13/2005 HydroCADO 7.00 sin 002749 ©1986-2003 Applied Microcomputer Systems Huttig Storage Addition Type IA 24-hr 2-year Rainfall=2.50" Prepared by Westlake Consultants, Inc. Page 1 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Subcatchment 1: Existing Conditions Runoff = 0.12 cfs @ 8.00 hrs, Volume= 0.044 af, Depth= 0.69" Runoff by SBUH method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type IA 24-hr 2-year Rainfall=2.50" Area (sf) CN Description 32,995 79 Pasture/grassland/range, Fair, HSG C Tc Length Slope Velocity Capacity Description (min) . (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0460 0.2 Sheet Flow, Range n= 0.130 P2= 2.50" Subcatchment 1: Existing Conditions Hydrograph 0.137 ❑Runoff O 12 cfs 012- Type IA 24-hr 2-year Rainfall=2.50" Runoff Area=32,995 sf 008: Runoff Volume=0.044 af 0.07= / Runoff Depth=0.69 0.06= Flow Length=90' T. 0.05- /ii Tc=6.5 min 0.04- �i��i��i��.��i Zdir��i�i��i�i�s�i�I/�//ii/ • 0.03-' 0.02- 0.01- 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 r 20 Time (hours) • Huttig Storage Addition Type IA 24-hr 10-year Rainfall=3.45" Prepared by Westlake Consultants, Inc. Page 2 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Subcatchment 1: Existing Conditions Runoff = 0.25 cfs @ 7.99 hrs, Volume= 0.082 af, Depth= 1.29" Runoff by SBUH method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type IA 24-hr 10-year Rainfall=3.45" Area (sf) CN Description 32,995 79 Pasture/grassland/range, Fair, HSG C Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0460 0.2 Sheet Flow, Range n= 0.130 P2= 2.50" Subcatchment 1: Existing Conditions Hydrograph 0 Runoff 025 crs.. 0.26_ F% Type IA 24-hr 10-year 0.24- 0.227 0.2 Runoff Area=32,995 sf 018= Runoff-Volume=0.082 af 0 P2 Runoff Depth=1.29" 0 0.14 " 1� LL 0.,2- •�I� Flow Length=90' 0.1�. Tc=6.5 min 0.08 CN=79 o.os' 0.04 /i 0.02- ,• 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Huttig Storage Addition Type IA 24-hr 25-year Rainfall=3.90" Prepared by Westlake Consultants, Inc. Page 3 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Subcatchment 1: Existing Conditions Runoff = 0.33 cfs @ 7.98 hrs, Volume= 0.101 af, Depth= 1.60" Runoff by SBUH method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type IA 24-hr 25-year Rainfall=3.90" Area (sf) CN Description 32,995 79 Pasture/grassland/range, Fair, HSG C Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0460 0.2 Sheet Flow, Range n= 0.130 P2= 2.50" Subcatchment 1: Existing Conditions Hydrograph 0.36:" i]Runoff 0.347. .. 0.33 cfs 0.32 Type IA 24-hr 25-year 0.3 Rainfall=3.90" 0.28: 0 0.26 Runoff Area=32,995 sf 0.24:" 0.22, Runoff.Volume=0.101 of Runoff Depth=1.60" 3 0.,8- LL 0.16. " �j� Flow Length=90' Tc=6.5 min o., Ilii�j� CN=79 0.08-:" /, /r% . .►. *.r. 1I.�r+✓°�/�r/�/��/�/�/ 0.06 f 0.04 0.02 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) I HUTTIG STORAGE ADDITION Tigard, OR 5.0 DEVELOPED RUNOFF CALCULATION REPORTS I I r r 0 Developed Conditions 3 WQ wale 4 Detention Pond I I Subcat Reach Pon Link Drainage Diagram for Huttig Storage Addition ---\\___ Prepared by Westlake Consultants, Inc. 4/13/2005 HydroCAD®7 00 s/n 002749 ©1986-2003 Applied Microcomputer Systems I Huttig Storage Addition Type IA 24-hr 2-year Rainfall=2.50" Prepared by Westlake Consultants, Inc. Page 2 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Subcatchment 2: Developed Conditions Runoff = 0.44 cfs @ 7.86 hrs, Volume= 0.116 af, Depth= 1.84" Runoff by SBUH method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type IA 24-hr 2-year Rainfall=2.50" Area (sf) CN Description 32,995 98 Paved parking & roofs Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.4 85 0.0150 1.0 Sheet Flow, Smooth surfaces n= 0.011 P2= 2.50" 1.5 255 0.0050 2.8 1.55 Circular Channel (pipe), Diam= 10.0" Area 0.5 sf Perim= 2.6' r= n= 0.013 2.9 340 Total Subcatchment 2: Developed Conditions Hydrograph 0.48 off 0 Run O.46 i 0.44 cfs 0 44 Type IA 24-hr 2-year YP Y ear 0.4 Rainfall=2.50" 0.38 0.36_ Runoff Area=32,995 sf 0.34= 0.323 0.3g Runoff Volume=0.116-af w * Runoff De th=1.84" " ., 0.26: P 3 0.24i LL 0.22; Flow Length=340' 0.2_ 018=" /01i Tc=2.9 min 0.16 �� -CN 98 0.14; — 0.12 �� /� 402~4097.00zedrowee,10 ex sr 0.0s 0.04 0.02 5 6 7' 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Huttig Storage Addition Type IA 24-hr 2-year Rainfall=2.50" Prepared by Westlake Consultants, Inc. Page 3 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Reach 3: WQ Swale Inflow Area = 0.757 ac, Inflow Depth = 1.84" for 2-year event Inflow = 0.44 cfs @ 7.86 hrs, Volume= 0.116 of Outflow = 0.44 cfs @ 7.90 hrs, Volume= 0.116 af, Atten= 0%, Lag= 2.3 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Max. Velocity= 1.2 fps, Min. Travel Time 1.4 min Avg. Velocity= 0.7 fps, Avg. Travel Time= 2.4 min Peak Depth= 0.14' @ 7.87 hrs Capacity at bank full= 4.98 cfs 2.00' x 0.50' deep channel, n= 0.020 Length= 100.0' Slope= 0.0050 'I' Side Slope Z-value= 4.0 'I' Reach 3: WQ Swale // Hydrograph / 13 Inflow 0.48= - • : l 0.44 cra a Outflow 0.46. 0.44 cfs _. � 0.44= . Inflow Area-0.75T:ac 0.42= _ 04 Peak Qepth0.1�4' 0.38; -. . 0.36--: .... �_ _......... '•...... ..-----�---- [Qx e}=A.2 fps 0.341 0.32 , 0 n=6.020_ • 0 0, .28 ▪ 0.26 t L=.1.00.01 .-.. 0.24_ 0 - 0 22 ,J ' LL 0.2- 5-0040 '/' 0.183 �J.�- Q�Q 0.16- �i' Capacity 4. ,8 T..a98--cfs 0.14; 008= Vii �i��ii iiiii%iii iiiii A.` 0.06_ // 0.02 • 5 6J T7 •8 '9 .10 11 12 13 • 14 15 16 17 18 19 20 Time (hours) I Huttig Storage Addition Type IA 24-hr 2-year Rainfall=2.50" Prepared by Westlake Consultants, Inc. Page 4 HydroCAD® 7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Inflow Area = 0.757 ac, Inflow Depth = 1.83" for 2-year event Inflow = 0.44 cfs @ 7.90 hrs, Volume= 0.116 of Outflow = 0.11 cfs @ 9.33 hrs, Volume= 0.116 af, Allen= 74%, Lag= 86.3 min Primary = 0.11 cfs @ 9.33 hrs, Volume= 0.116 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 149.62' @ 9.33 hrs Surf.Area= 1,268 sf Storage= 1,041 cf Plug-Flow detention time 79.0 min calculated for 0.115 af(100% of inflow) Center-of-Mass det. time 78.6 min ( 728.9 - 650.3 ) Invert Avail.Storage Storage Description 1 146.90' 2,345 cf Custom Stage Data (Prismatic) Listed below Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 146.90 0 0 0 148.28 4 3 3 149.00 833 301 304 150.00 1,532 1,183 1,487 150.50 1,902 859 2,345 # Routing Invert Outlet Devices 1 Primary 146.90' 1.6"Vert. Orifice/Grate C= 0.620 2 Primary 149.62' 2.7"Vert. Orifice/Grate C= 0.620 Primary OutFlow Max=0.11 cfs @ 9.33 hrs HW=149.62' (Free Discharge) t1=Orifice/Grate (Orifice Controls 0.11 cfs @ 8.1 fps) 2=Orifice/Grate (Orifice Controls 0.00 cfs @ 0.2 fps) Huttig Storage Addition Type IA 24-hr 2-year Rainfall=2.50" Prepared by Westlake Consultants, Inc. Page 5 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Hydrograph / 0.48: {:o.Mtcrs, D Primary 0.461 ,--- --.. _ - - - - -- - - - - ----- a=Q , ir1 � 'Ar'e .757..E 0.4: 1_ -Peak- v 1 --- 0.38= 0.36i .. 0.34 Storaage=1_,041 if 0.32= _.......__ .. ._ -_....__............................... __... _...__..__...__. ---_.__ ....._. ........ h 0.28 3 - - .... 0.26= .• ...-----,. .. . _.... _ _ _ 0.244, ' _ .u. 022; --.._..... 0.2= 0.163 ,__ � 0.14- ; 0/Ire o.,= '4"411, 0.1 e�.•.../////yj %/////// 0.061 0.04 02 5 ^6 7 8 9^ 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Huttig Storage Addition Type IA 24-hr 10-year Rainfall=3.45" Prepared by Westlake Consultants, Inc. Page 6 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Subcatchment 2: Developed Conditions Runoff = 0.62 cfs @ 7.85 hrs, Volume= 0.162 af, Depth= 2.57" Runoff by SBUH method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type IA 24-hr 10-year Rainfall=3.45" Area (sf) CN Description 32,995 98 Paved parking & roofs Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.4 85 0.0150 1.0 Sheet Flow, Smooth surfaces n= 0.011 P2= 2.50" 1.5 255 0.0050 2.8 1.55 Circular Channel (pipe), Diam= 10.0" Area= 0.5 sf Perim= 2.6' r= 0.21' n= 0.013 2.9 340 Total Subcatchment 2: Developed Conditions Hydrograph _ __. ❑Runoff 0.62 cfs " L Type IA 24-hr 10-year 0.55_" Rainfall=3.45" 05= Runoff Area=32,995 sf - y` Runoff Volume=0.162 af Runoff Depth=2.57" 0 LL 0.33" Flow Length=340' 0.253" Tc=2.9 min 0.24 ' I� CN=98 0.15= fe}y %�� *ej�///�, 0.1- /iii./®.f�� r®i i/i/i/i/io /i 0 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Huttig Storage Addition Type IA 24-hr 10-year Rainfall=3.45" Prepared by Westlake Consultants, Inc. Page 7 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Reach 3: WQ Swale Inflow Area = 0.757 ac, Inflow Depth = 2.57" for 10-year event Inflow = 0.62 cfs @ 7.85 hrs, Volume= 0.162 af Outflow = 0.62 cfs @ 7.89 hrs, Volume= 0.162 af, Atten= 0%, Lag= 2.1 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Max. Velocity= 1.4 fps, Min. Travel Time= 1.2 min Avg. Velocity = 0.8 fps, Avg. Travel Time 2.1 min Peak Depth= 0.17' @ 7.87 hrs Capacity at bank full= 4.98 cfs 2.00' x 0.50' deep channel, n= 0.020 Length= 100.0' Slope= 0.0050 '/' Side Slope Z-value= 4.0 '/' Reach 3: WQ Swale ' Hydrograph / , _. Inflow I 062 cfs D Outflow 0.65- I osz cry Inflow Area=0.757 ac 0.6= ,, . f . . , '. , : 0.55 eak Qerifh=0.17' _. 0.5 Max Vet=1.4 fps : 045= 7, 04 Ott n=0.020. _ 0.35- O L=100..0' , o = LL 0.37 V i S=0.0050 '/' ♦ ♦ Ca acct 4.9 0.2-" 1��, ♦ � p Y- ;8_cfs 0.15' ./ //�'' �� 0.1: .s 0.05 ' ' 5 6 7 8 9 10 11 1'2 13 14 15 16 17 1'8 19 20 Time (hours) Huttig Storage Addition Type IA 24-hr 10-year Rainfall=3.45" Prepared by Westlake Consultants, Inc. Page 8 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Inflow Area = 0.757 ac, Inflow Depth = 2.56" for 10-year event Inflow = 0.62 cfs @ 7.89 hrs, Volume= 0.162 of Outflow = 0.23 cfs @ 8.71 hrs, Volume= 0.154 af, Atten= 63%, Lag=49.0 min Primary = 0.23 cfs @ 8.71 hrs, Volume= 0.154 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 150.01' @ 8.71 hrs Surf.Area= 1,543 sf Storage= 1,512 cf Plug-Flow detention time= 107.3 min calculated for 0.154 af(95% of inflow) Center-of-Mass det. time 81.5 min ( 729.4 - 647.9 ) # Invert Avail.Storage Storage Description 1 146.90' 2,345 cf Custom Stage Data (Prismatic) Listed below Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 146.90 0 0 0 148.28 4 3 3 149.00 833 301 304 150.00 1,532 1,183 1,487 150.50 1,902 859 2,345 # Routing Invert Outlet Devices 1 Primary 146.90' 1.6"Vert. Orifice/Grate C= 0.620 2 Primary 149.62' 2.7"Vert. Orifice/Grate C= 0.620 Primary OutFlow Max=0.23 cfs @ 8.71 hrs HW=150.01' (Free Discharge) 'L1=Orifice/Grate (Orifice Controls 0.12 cfs @ 8.7 fps) 2=Orifice/Grate (Orifice Controls 0.11 cfs @ 2.6 fps) Huttig Storage Addition Type IA 24-hr 10-year Rainfall=3.45" Prepared by Westlake Consultants, Inc. Page 9 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Hydrograph Inflow l 0.62 cis 0 Primary 0.65 Inflow'Area=0.757 ac Peak EIev0.55 �=1 O O1'.. .. 1-Storage 1-512_.0 . 0.45- a 0.42; 1 i i i -- - 'r u 3 0.35- • II 0.3-7. 1 t i -- ... -----' 0.23 ds ' 0.25-. 0.2- / � ... 0.15-, AltatIiiira, Z' 4117 0.05 , 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) • Huttig Storage Addition Type IA 24-hr 25-year Rainfall=3.90" Prepared by Westlake Consultants, Inc. Page 10 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Subcatchment 2: Developed Conditions Runoff = 0.70 cfs @ 7.85 hrs, Volume= 0.184 af, Depth= 2.92" Runoff by SBUH method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type IA 24-hr 25-year Rainfall=3.90" Area (sf) CN Description 32,995 98 Paved parking & roofs Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.4 85 0.0150 1.0 Sheet Flow, Smooth surfaces n= 0.011 P2= 2.50" 1.5 255 0.0050 2.8 1.55 Circular Channel (pipe), Diam= 10.0" Area= 0.5 sf Perim= 2.6' r= 0.21' n= 0.013 2.9 340 Total Subcatchment 2: Developed Conditions Hydrograph ❑Runoff o.7O ns 0.7 I Type IA 24-hr 25-year 0.65. = Rainfall=3.90" 0.6 0.55: Runoff Area=32,995 sf 0.5 ' Runoff Volume=0.184 af • 0.457 ® Runoff Depth=2.92" 0.4 5 V 3 = ® Flow Length=340' - 0.35. 0.3: Tc=2.9 min 0.2. r 04. CN=98 0.15' fff rdfrA9:0l®�O / io /o/z A/®��! Arose" 0.05-" 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) I I Huttig Storage Addition Type IA 24-hr 25-year Rainfall=3.90" Prepared by Westlake Consultants, Inc. Page 11 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Reach 3: WQ Swale Inflow Area = 0.757 ac, Inflow Depth = 2.92" for 25-year event Inflow = 0.70 cfs @ 7.85 hrs, Volume= 0.184 of Outflow = 0.70 cfs @ 7.89 hrs, Volume= 0.184 af, Atten= 0%, Lag= 2.0 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Max. Velocity= 1.4 fps, Min. Travel Time= 1.2 min Avg. Velocity= 0.8 fps, Avg. Travel Time 2.0 min Peak Depth= 0.18' @ 7.87 hrs Capacity at bank full=4.98 cfs 2.00' x 0.50' deep channel, n= 0.020 Length= 100.0' Slope= 0.0050 '/' Side Slope Z-value= 4.0 '/' Reach 3: WQ Swale Hydrograph I0.70cfs j i--. F Outflo ®Inflow 0.75- 0 - w 0.7 ,5 57 ac 0.7- now Area= 0.757 0 65 el Peak De p th=0.18 0.6-: 0.55= . Max Vet=1 .4 fps 0.5 n=0.020 w o.as- ; ' 00�� L=100.0' " °03 S=0.0050 'I' 0.25 4% Ca p a c i t y=4.98 cfs ;0.2= � / ��I�j/ o.1s� /// /��/ % �II ,/Z !////// 0.05 ,:■ -■—/ 5 6- 7 8 ' '1'10 Time (hours) I I Huttig Storage Addition Type IA 24-hr 25-year Rainfall=3.90" Prepared by Westlake Consultants, Inc. Page 12 HydroCAD©7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Inflow Area = 0.757 ac, Inflow Depth = 2.91" for 25-year event Inflow = 0.70 cfs @ 7.89 hrs, Volume= 0.184 of Outflow = 0.26 cfs @ 8.52 hrs, Volume= 0.179 af, Atten= 63%, Lag= 38.1 min Primary = 0.26 cfs © 8.52 hrs, Volume= 0.179 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 150.10' @ 8.52 hrs Surf.Area= 1,604 sf Storage= 1,653 cf Plug-Flow detention time= 87.7 min calculated for 0.178 af (97% of inflow) Center-of-Mass det. time 73.7 min ( 721.0 - 647.3 ) # Invert Avail.Storage Storage Description 1 146.90' 2,345 cf Custom Stage Data (Prismatic) Listed below Elevation Surf.Area Inc.Store Cum.Store (feet) (cubic-feet) (cubic-feet) 146.90 0 0 0 148.28 4 3 3 149.00 833 301 304 150.00 1,532 1,183 1,487 150.50 1,902 859 2,345 # Routing Invert Outlet Devices 1 Primary 146.90' 1.7" Vert. Orifice/Grate C= 0.620 2 Primary 149.48' 2.5" Vert. Orifice/Grate C= 0.620 Primary OutFlow Max=0.26 cfs @ 8.52 hrs HW=150.10' (Free Discharge) -1=Orifice/Grate (Orifice Controls 0.14 cfs @ 8.8 fps) 2=Orifice/Grate (Orifice Controls 0.12 cfs @ 3.6 fps) Huttig Storage Addition Type IA 24-hr 25-year Rainfall=3.90" Prepared by Westlake Consultants, Inc. Page 13 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Inflow Area = 0.757 ac, Inflow Depth = 2.91" for 25-year event Inflow = 0.70 cfs @ 7.89 hrs, Volume= 0.184 of Outflow = 0.26 cfs @ 8.71 hrs, Volume= 0.170 af, Atten= 64%, Lag= 49.7 min Primary = 0.26 cfs @ 8.71 hrs, Volume= 0.170 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 150.17' @ 8.71 hrs Surf.Area= 1,660 sf Storage= 1,783 cf Plug-Flow detention time 112.5 min calculated for 0.170 of(93% of inflow) Center-of-Mass det. time 74.0 min ( 721.3 - 647.3 ) # Invert Avail.Storage Storage Description 1 146.90' 2,345 cf Custom Stage Data (Prismatic) Listed below Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 146.90 0 0 0 148.28 4 3 3 149.00 833 301 304 150.00 1,532 1,183 1,487 150.50 1,902 859 2,345 # Routing Invert Outlet Devices 1 Primary 146.90' 1.6" Vert. Orifice/Grate C= 0.620 2 Primary 149.62' 2.7"Vert. Orifice/Grate C= 0.620 Primary OutFlow Max=0.26 cfs @ 8.71 hrs HW=150.17' (Free Discharge) AL1=Orifice/Grate (Orifice Controls 0.12 cfs @ 8.9 fps) 2=Orifice/Grate (Orifice Controls 0.13 cfs @ 3.3 fps) 1 Huttig Storage Addition Type IA 24-hr 25-year Rainfall=3.90" Prepared by Westlake Consultants, Inc. Page 14 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Hydrograph t, Inflow Primary .75- _. Inflow Area=0.757--ac 0.7= 0.65= Peak_:Ere_:--1 -0-:17' 0.6 0.55= Storage=4,783 cf 0.5= 7 _ t,, a 0.45- 0.4-] ° 0.35 3 LL 0.3' 0.25-3_ ..si � 0.15 " Z 0.05 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) HUTTIG STORAGE ADDITION Tigard, OR 6.0 REFERENCE TABLES & MAPS O u a L ICE y "...- '1:1'it a 1 r s _:�,.,,,X �' fit ,I�d .. r �� `'#, � � � � kfi • l rt i t ,r.:.5. y"' '�, ' *�" LTV- i ....4,-,e- ,t F nt• s.y I' r 'an, ,- f�Y. I ''''``'•....;:". r '� t 1 p ,,"'" 1. '' eG lS 'a y r 1.4, :'.,4.,'1, 4-,NO., ' ._ ' - .... , 0 ./111111111fr , . 1 t6 r f t ' 114100 T 1 1 w*� ate. .. .-.�� 44 -1 1 k. ., it .1 r -1 i fi .. � f. M ___E. ce!1 a..,t f riF 'i" ..,+� W -a i.F, .. ,�" . s gin. F» 3i �"''all, . _0 i h ' i' a ' AL LIP— ' '''s 1 ' ... .?.. , 'e 4, 0. ..1, ict- -y,` Ai, ;i " .t }d �` ,.'."�� - t x : -'''N_ ..'' ".:7.0 } I I 4t� mac fT• 7-6", k _' y !C� .. �` ,o a '. +.F ! �, ; . A i a alai! a, :7 ; . sd r ,., ".Y...�' +�# ♦ 1 WPp' r-.�,r [eatY F s -` - s ,,r a A a ,7.4‘' •4*4 6.t ,t.ti" t �: 11.. i 1.11.044111 '.a ti Y a ` I� , tt Y Y „ ,p .$ 1 b i 1 Water Features Washington County,Oregon [Depths of layers are in feet. See text for definitions of terms used in this table. Estimates of the frequency of ponding and flooding apply to the whole year rather than to individual months. Absence of an entry indicates that the feature is not a concern or that data were not estimated] Water table Ponding Flooding Map symbol Hydrologic Surface runoff Month and soil name group Upper limit Lower limit Surface depth Duration Frequency Duration Frequency Ft Ft Ft 1: Aloha C --- January 1.5-2.0 1.7-3.3 --- --- None --- None February 1.5-2.0 1.7-3.3 --- -- None --- None March 1.5-2.0 1.7-3.3 --- -- None --- None April 1.5-2.0 1.7-3.3 --- -- None --- None December 1.5-2.0 1.7-3.3 --- --- None --- None 42: Verboort D --- January 0.0-2.0 0.8-2.0 --- --- None Brief Frequent February 0.0-2.0 0.8-2.0 --- -- None Brief Frequent March 0.0-2.0 0.8-2.0 --- --- None Brief Frequent April 0.0-2.0 0.8-2.0 --- -- None Brief Frequent December 0.0-2.0 0.8-2.0 --- --- None Brief Frequent USDANatural Resources This report shows only the major soils in each map unit.Others may exist. Tabular Data Version: 1 iiiII Conservation Service Tabular Data Version Date:04/27/2004 Page 1 of 1 Huttig Storage Addition Type IA 24-hr WQ Storm Rainfall=2.50" Prepared by Westlake Consultants, Inc. Page 1 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Reach 3: WQ Swale Inflow Area = 0.122 ac, Inflow Depth = 1.84" for WQ Storm event Inflow = 0.07 cfs @ 7.86 hrs, Volume= 0.019 of Outflow = 0.07 cfs @ 8.23 hrs, Volume= 0.018 af, Atten= 8%, Lag= 22.4 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Max. Velocity= 0.1 fps, Min. Travel Time= 13.6 min Avg. Velocity= 0.1 fps, Avg. Travel Time 22.9 min Peak Depth= 0.19' @ 8.01 hrs Capacity at bank full= 0.42 cfs 2.00' x 0.50' deep channel, n= 0.240 Length= 100.0' Slope= 0.0050 '/' Side Slope Z-value= 4.0 Reach 3: WQ Swale Hydrograph / Inflow _; Outflow ^ r� Inflow Area=O. ' _. 0.075: . �2 ac 0.07-. 0 W cis 0.065- Peak Depth 0:'19' - 0.055,. Max �i/el O.A 1.. ps.. :n=4.240 F w 0.045] LL 0.035-" I L S=0.0050:717_ 0.03- �'• Capacity40.42-cts-- 40.74002,dVd,r# 0.005 5 6 7 8 9 10 11 12 13 14 ^15 16 —1'7-18-1V^19 20 Time (hours) 11MD2cX5 — Ood ( 3 Westlake consultants inc 7RM/TTAL EA&AEFRIl1G ♦ SURI/E}TAG ♦ PLANN/t G Phone:503 6840652 Fax:503 6240157 Date: 09-08x5 Project No.: 1758-0018 To: Ms.Kim McMillan Project Name: Huttig Building Facility City of Tigard 13125 SW Hall Blvd. Tigard,OR 97223 From: Bernard Smith CC: Re: Revised Drainage Plan No.of Copies Dated Description 1 Revised Storm Report 3 Revised Sheet 6 3 Revised Sheet 7 Comments: Attached are the revisions vie discussed last week, with regards to the Huttig Project. Please review the revisions and call us with any questions"""""i Thanks again for your assistance with this matter...._ Have a great day. Bernard Fax ❑ No.of Pages(including cover) Fax No. Mail ❑ Messenger❑ Overnight ❑ Hand Delivery Pacific Corporate Center, 15115 S.W.Sequoia Parkway,Suite 150,Tigard,Oregon 97224 III Westlake PLANNING I ENGINEERING I SURVEYING consultants,inc . Stormwater Report for Huttig Storage Addition Tigard, Oregon .<(-4.o PRop �a G I N E ' o W 63213PE r- OREGON 'ice se.1• 14,1oo J- vilf PAUL N I RensadOde i q3i/o6 April 13, 2005 Revised September 6, 2005 Pacific Corporate Center 15115 sw sequoia parkway, suite 150, tigard, oregon 97224 www.westlakeconsultants.com I PH 503.684.0652 I FX 503.624.0157 HUTTIG STORAGE ADDITION Tigard, OR Table of Contents 1.0 PROJECT OVERVIEW 1.1 Introduction 1.2 Analysis Purpose 1.3 Water Quality Calculations 1.4 Detention Calculations 2.0 WATER QUALITY CALCULATIONS 2.1 Total Impervious Area 2.2 Water Quality Volume C2.3 Water Quality Flow 2.4 Water Quality Swale Design 0 3.0 DETENTION CALCULATIONS A'‘ , ,f1\ � 3.1 Pre-developed Conditions 3.2 Pre-developed Runoff Rates 3.3 Developed Conditions 3.4 Developed Runoff Rates 3.5 Pond Outlet Design 4.0 PRE-DEVELOPED RUNOFF CALCULATION REPORTS 5.0 DEVELOPED RUNOFF CALCULATION REPORTS 6.0 REFERENCE TABLES & MAPS HUTTIG STORAGE ADDITION Tigard, OR 1.0 PROJECT OVERVIEW 1.1 Introduction This project is located at 8100 SW Hunziker St and the site area is 7.58 acres. The site is mostly developed with a warehouse,parking areas,and paved areas for storing of lumber materials. The southwest corner of the property is currently undeveloped. The existing site runoff is collected through downspouts and catch basins and is collected into a private storm system which drains into Fanno Creek. Fanno Creek is located along the east property line. No grading activity will occur within the 100-year flood plain and no new structures will be placed within 50 feet of the 100-year flood plain. This development will provide additional paved area for storage of lumber materials. The new paved area, approximately 32,995 sq. ft.,will encompass a portion of the undeveloped area located in the southwest. The remaining undeveloped area will be used for excess fill,the new water quality and detention facility and for landscaping. The detention facility will be sized according to the new development only. For water quality,the new impervious areas and some existing will be treated. Two connections into the existing storm system will be made to re-direct this runoff into the water quality swale. The additional impervious area to be treated is approximately 74,500 sq.ft. The detention&water quality facility will be design according to the requirements set forth Clean Water Services"Design and Construction Standards for Sanitary Sewer and Surface Water Management",March,2004. The outfall from this facility will be directed into Fanno Creek. 1.2 Analysis Purpose The purpose of this preliminary analysis is to determine the following: 1. Water quality treatment rate. 2. Pre-developed and developed drainage basin runoff rate. 3. Required detention volume. 1.3 Water Quality Calculations For water quality,the system shall treat the total precipitation of 0.36 inches falling in 4 hours with a storm return period of 96 hours. The water quality treatment rate was calculated to be 0.22 cfs. A grassy swale, 100 feet in length,will be constructed to achieve water quality treatment and will be designed according to the Clean Water Services requirements. 1.4 Detention Calculations The detention requirement states that the developed peak runoff rates for the 2-year, 10-year and 25-year shall not exceed their respective pre-developed peak runoff rates. The Santa Barbara Urban Hydrograph modeled with a Type lA storm was used to determine the basin runoff. The 2, 10&25-year storm was evaluated to determine the basin peak runoff. Rainfall data for each storm was obtained from Clean Water Services. The existing soils within the property are classified as SCS Group C soils. These were obtained from USDA maps and are attached. * See attached reports from HydroCAD,a stormwater modeling software,for all basin runoff calculations and swale and detention pond sizing. HUTTIG STORAGE EXPANSION Tigard, OR 2.0 WATER QUALITY CALCULATIONS 2.1 Total impervious area New storage impervious area=32,995 sq.ft. Existing impervious area draining into swale=74,500 sq. ft. Total impervious area= 107,495 sq. ft. 2.2 Water Quality Volume WQV (cf)=0.36(in)x Impervious area(sf1 12(in/ft) =0.36(in)x 107.495(sf) 12(in/ft) = 3225 cubic feet 2.3 Water Quality Flow WQF(cfs)=Water Quality Flow(cf) 14,400(sec) = 3225 cf 14,400(sec) = 0.22 cfs 2.4 Water Quality Swale Design Bottom - Side Manning's - Swrale Peak Length - Peak Peak Travel Width Slope r "n" Slope Inflow(CFS) Velocity(ft/s) Depth(ft) Time 2' 4:1 0.24 0.50% 0.07 100' 0.12 0.19 13.6rrin Huttig Storage Addition Type IA 24-hr Rainfall=1.35" Prepared by Westlake Consultants Page 1 HydroCAD® 7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 9/6/2005 Reach 3: WQ Swale Inflow Area = 0.757 ac, Inflow Depth = 0.94" Inflow = 0.22 cfs @ 7.87 hrs, Volume= 0.059 af Outflow = 0.22 cfs @ 8.15 hrs, Volume= 0.058 af, Atten= 4%, Lag= 16.5 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Max. Velocity= 0.2 fps, Min. Travel Time= 9.6 min Avg. Velocity = 0.1 fps, Avg. Travel Time 15.6 min Peak Depth= 0.36' @ 7.99 hrs Capacity at bank full= 0.42 cfs 2.00' x 0.50' deep channel, n= 0.240 Length= 100.0' Slope= 0.0050 '/' Side Slope Z-value=4.0 '/' Reach 3: WQ Swale Hydrograph r , p Inflow I 0.2 '. ❑Outflo■ Outflow o zz crs - -0.24-, �0.23 i. � ow re a=0 ac 0.22- .... --._.._. -----� r _._-._.._ ea h=0 0.19; .":•— _.. ..._ _..-.. _.... _....__ -;-............ ......._ __.....__ 0.18- _._ , • 0.16- . .. , • .._ ., .. ,.... _ -..r n.. 0 r ,--_.-._. .... _.,...-..... _...---- __ _ _ N 0.14; _._ ,, • _.. -_. _ �r. 0.13= 4 , 01_ . F - ._7-- .r __ LL 0.1 - .. 1 __. - _off 7.. + l-. . 0.09=" , . ---..1 --- �1 ,._...._. / /�/� /� �+__. 0.08= ••••;•_._.._ F Capacjty=O.42-cfs. i 0.06= -• — -• ,- - --------- - I.. 0.05; __.- ; t- 0.04; 0.03= _ 0.023:" 0.01'" (/•5 6 7 8 9 10 11 ^12 13 14 15 16 17 18 19 20 Time (hours) HUTTIG STORAGE ADDITION Tigard, OR 3.0 DETENTION CALCULATIONS 3.1 Pre-developed Conditions Drainage Basin Area=32,995 sq. ft. CN=76(woods/grass combination,Group C soils) 3.2 Pre-developed Runoff Rates 2-year(2.5")=0.12 cfs 10-year(3.45")=0.25 cfs 25-year(3.9")=0.33 cfs 3.3 Developed Conditions Drainage Basin `1' area=32,995 sq. ft. CN=98(pavement) 3.4 Developed Runoff Rates 2-year(2.5")=0.44 cfs 10-year(3.45")=0.62 cfs 25-year(3.9")=0.70 cfs 3.5 Pond Outlet Design Storm Peak Peak Allowable Orifice Invert Peak Storage Event Inflow(CFS) Outflow(CFS) Outflow(CFS) Size Elevation Stage (cu.ft.) 2-year 0.44 0.12 0.12 1.6" 146.90' 149.62' 1,041 10-year 0.62 0.23 0.25 2.7" 149.62' 150.01' 1,512 25-year 0.70 0.26 0.33 — — 150.10' 1,653 HUTTIG STORAGE ADDITION Tigard, OR 4.0 PRE-DEVELOPED RUNOFF CALCULATION REPORTS ''''-',;,'",-;,•,;-';',-4 4 a , F, .. E • t •xis � n on � ions • SUbCat Reach -on. Drainage Diagram for Huttig Storage Addition Prepared by Westlake Consultants, Inc. 4/13/2005 HydroCAD®7.00 s/n 002749 0 1986-2003 Applied Microcomputer Systems Huttig Storage Addition Type IA 24-hr 2-year Rainfall=2.50" Prepared by Westlake Consultants, Inc. Page 1 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Subcatchment 1: Existing Conditions Runoff = 0.12 cfs @ 8.00 hrs, Volume= 0.044 af, Depth= 0.69" Runoff by SBUF1 method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type IA 24-hr 2-year Rainfall=2.50" Area (sf) CN Description 32,995 79 Pasture/grassland/range, Fair, HSG C Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0460 0.2 Sheet Flow, Range n= 0.130 P2= 2.50" Subcatchment 1: Existing Conditions Hydrograph 0.13- ®Runoff ........... 0.12-cs 0.11 T yp®lA 24-hr-2-year..0.17. Ra i nifal1=2.50" 0.09_ ff area 32;995:sf Runo ;_ 0.08: Runoff Volbme=0.044 of Runoff Depth=0.89" 0 006= Flow Length=JO' Tc=6;.5._Min_. . :::i:. 0.02 0.01- 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Huttig Storage Addition Type IA 24-hr 10-year Rainfall=3.45" Prepared by Westlake Consultants, Inc. Page 2 HydroCAD® 7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Subcatchment 1: Existing Conditions Runoff = 0.25 cfs @ 7.99 hrs, Volume= 0.082 af, Depth= 1.29" Runoff by SBUH method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type IA 24-hr 10-year Rainfall=3.45' Area (sf) CN Description 32,995 79 Pasture/grassland/range, Fair, HSG C Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0460 0.2 Sheet Flow, Range n= 0.130 P2= 2.50" Subcatchment 1: Existing Conditions Hydrograph 0.28- ❑ Runoff 0.26- 0.25 cfs 0.24' Type IA 24-hr 10-year • 0.22 Ra i n fall-3. 5.. 0.2 Runoff Area 32,995 sf 1" Runoff;Volume=0.082 af in 0.,6 Runoff Depth=1.29" LL `Flow Length=90' 0.12-:' 0., '�., 7 / Tc=6.5 min 0.08= 41. ,. CN=79 0 06 0.04 0.02- 0 �j/1!. 18 5 6 7 8 9 10 11 12 13 14 151 .16. 17 ' ' 1.9' 20 Time (hours) Huttig Storage Addition Type IA 24-hr 25-year Rainfall=3.90" Prepared by Westlake Consultants, Inc. Page 3 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Subcatchment 1: Existing Conditions Runoff = 0.33 cfs @ 7.98 hrs, Volume= 0.101 af, Depth= 1.60" Runoff by SBUH method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type IA 24-hr 25-year Rainfall=3.90" Area (sf) CN Description 32,995 79 Pasture/grassland/range, Fair, HSG C Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0460 0.2 Sheet Flow, Range n= 0.130 P2= 2.50" Subcatchment 1: Existing Conditions Hydrograph ❑Runoff 0.34— 0.33 cfs .. 0.32: i...... .... __.._. Type IA24-hr 25-year 0.3; 0.28: R infaII=3:90" 0.26: Runoff Area=32,995;sf 024-; Runoff Volume-0.101 af _.. 02= h 'I.60 p = t .. 0.18- u o e 0.,6 1 Flow Length=90': _+ ' .- 012 " �j T�c=6:3-min_ CN=79... 00e ////////////////////////////////////////// o.0a 0.023."/ 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) HUTTIG STORAGE ADDITION Tigard, OR 5.0 DEVELOPED RUNOFF CALCULATION REPORTS 2 Developed Conditions 3 WQ wale 4 Detention Pond Subcat Reach 'on. lit Drainage Diagram for Huttig Storage Addition Prepared by Westlake Consultants, Inc. 4/13/2005 HydroCAD®7 00 s/n 002749 ©1986-2003 Applied Microcomputer Systems Huttig Storage Addition Type IA 24-hr 2-year Rainfall=2.50" Prepared by Westlake Consultants, Inc. Page 2 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Subcatchment 2: Developed Conditions Runoff = 0.44 cfs @ 7.86 hrs, Volume= 0.116 af, Depth= 1.84" Runoff by SBUH method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type IA 24-hr 2-year Rainfall=2.50" Area (sf) CN Description 32,995 98 Paved parking & roofs Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.4 85 0.0150 1.0 Sheet Flow, Smooth surfaces n= 0.011 P2= 2.50" 1.5 255 0.0050 2.8 1.55 Circular Channel (pipe), Diam= 10.0" Area= 0.5 sf Perim= 2.6' r= 0.21' n= 0.013 2.9 340 Total Subcatchment 2: Developed Conditions Hydrograph 0.48 ®Runoff 0.46' 0 44 cfs 0.44; Type 14:24-hr..27 year. 0.42 0.4', _ -- I -. ... Itlfl Z Ors 0.38 - ...... 0.36' Run- off Are- a- =32,99.5 sf 034, 0.321 •__...._._.. Runoff: oliurn�=0. = � of 0.281' . _.. . ". 0.26 Runoffs De'pth=1.84 3 0.24- 0.224 . - Flovi Length=340'._.. 0.18 / Tc=2:9-riin.... 0.14 CN=9 ;._.._.. ._..:8 0.12: . 0.1 0.08_ / /- 0.04: 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Huttig Storage Addition Type IA 24-hr 2-year Rainfall=2.50" Prepared by Westlake Consultants, Inc. Page 3 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Reach 3: WQ Swale Inflow Area = 0.757 ac, Inflow Depth = 1.84" for 2-year event Inflow = 0.44 cfs @ 7.86 hrs, Volume= 0.116 af Outflow = 0.44 cfs @ 7.90 hrs, Volume= 0.116 af, Atten= 0%, Lag= 2.3 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Max. Velocity= 1.2 fps, Min. Travel Time= 1.4 min Avg. Velocity = 0.7 fps, Avg. Travel Time= 2.4 min Peak Depth= 0.14' @ 7.87 hrs Capacity at bank full=4.98 cfs 2.00' x 0.50' deep channel, n= 0.020 Length= 100.0' Slope= 0.0050 '/' Side Slope Z-value= 4.0 '/' Reach 3: WQ Swale Hydrograph Inflow 0.48= 0.46- . _ ..._..-..-.. ° -0 Outflow 0.44; ' ---InflowA re a=b.757 ac : 4 0.38i '•.- Peak Depth=01 ' 0.36 -- et41-.2--fps 11ax ! 0.34- - - - _.._...__. - - 0.3; 1 —0.4 0 26= 0.26' i • 3 0.24_ L-1 0 0.22-' ,/cif 0.16 -�4 98 cfs 0.14',".' �� j� - ap�:act�- o.oa " /j)1 //�/ /�//1►/ "/�/rA% %%.,, >r///.f///////1///!/////' 0.06 0.04- 0.02 o T _ , , . 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) im Huttig Storage Addition Type IA 24-hr 2-year Rainfall=2.50" Prepared by Westlake Consultants, Inc. Page 4 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Inflow Area = 0.757 ac, Inflow Depth = 1.83" for 2-year event Inflow = 0.44 cfs @ 7.90 hrs, Volume= 0.116 of Outflow = 0.11 cfs @ 9.33 hrs, Volume= 0.116 af, Atten= 74%, Lag= 86.3 min Primary = 0.11 cfs @ 9.33 hrs, Volume= 0.116 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 149.62' @ 9.33 hrs Surf.Area= 1,268 sf Storage= 1,041 cf Plug-Flow detention time 79.0 min calculated for 0.115 of(100% of inflow) Center-of-Mass det. time= 78.6 min ( 728.9 - 650.3 ) # Invert Avail.Storage Storage Description 1 146.90' 2,345 cf Custom Stage Data (Prismatic) Listed below Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 146.90 0 0 0 148.28 4 3 3 149.00 833 301 304 150.00 1,532 1,183 1,487 150.50 1,902 859 2,345 # Routing Invert Outlet Devices 1 Primary 146.90' 1.6" Vert. Orifice/Grate C= 0.620 2 Primary 149.62' 2.7" Vert. Orifice/Grate C= 0.620 Primary OutFlow Max=0.11 cfs @ 9.33 hrs HW=149.62' (Free Discharge) aL1=Orifice/Grate (Orifice Controls 0.11 cfs @ 8.1 fps) 2=Orifice/Grate (Orifice Controls 0.00 cfs @ 0.2 fps) Huttig Storage Addition Type IA 24-hr 2-year Rainfall=2.50" Prepared by Westlake Consultants, Inc. Page 5 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Hydrograph Inflow 0.48 10.44 crs ❑Primary 0.46- Inflow Area=0.757 ac 0.44 0.42; 0.4 , Peak EIev=149.62' 0.38 0.36; Storage=1 ,041 cf 0.32 • 0.28; 0.26= 0.24 a 0.22; 0.2= 0.18? • 0.16- 0.143 ®0.12 , .42%, 407Zd /� ��✓0 Zeor.'z/ //I//f/ 0.06: !/ 6,)-#.477 i�fiei, 0.06_ 0.04 0.02 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Huttig Storage Addition Type IA 24-hr 10-year Rainfall=3.45" Prepared by Westlake Consultants, Inc. Page 6 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Subcatchment 2: Developed Conditions Runoff = 0.62 cfs @ 7.85 hrs, Volume= 0.162 af, Depth= 2.57" Runoff by SBUH method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type IA 24-hr 10-year Rainfall=3.45" Area (sf) CN Description 32,995 98 Paved parking & roofs Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.4 85 0.0150 1.0 Sheet Flow, Smooth surfaces n= 0.011 P2= 2.50" 1.5 255 0.0050 2.8 1.55 Circular Channel (pipe), Diam= 10.0" Area= 0.5 sf Perim= 2.6' r= 0.21' n= 0.013 2.9 340 Total Subcatchment 2: Developed Conditions Hydrograph ❑Runoff 0.65=" l o.az cfs 0.6= Type IA 24-hr 10-year Rainfall=3.45" 05 " Runoff Area=32,995 sf 0.45= A Runoff Volume=0.162 af PAw 0.4- 0.35: Runoff Depth=2.57" ,° 0.3-" " Flow Length=340' Tc=2.9 min CN-98 0.15= .1 7 41r4r"$#P":" ..41.9741V474097:1010.109404-271210,7 0.05 .. . . .. . , . , 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Huttig Storage Addition Type IA 24-hr 10-year Rainfall=3.45" Prepared by Westlake Consultants, Inc. Page 7 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Reach 3: WQ Swale Inflow Area = 0.757 ac, Inflow Depth = 2.57" for 10-year event Inflow = 0.62 cfs @ 7.85 hrs, Volume= 0.162 af Outflow = 0.62 cfs @ 7.89 hrs, Volume= 0.162 af, Atten= 0%, Lag= 2.1 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Max. Velocity= 1.4 fps, Min. Travel Time= 1.2 min Avg. Velocity = 0.8 fps, Avg. Travel Time= 2.1 min Peak Depth= 0.17' @ 7.87 hrs Capacity at bank full= 4.98 cfs 2.00' x 0.50' deep channel, n= 0.020 Length= 100.0' Slope= 0.0050 '/' Side Slope Z-value= 4.0 '/' Reach 3: WQ Swale Hydrograph o Inflow 0,62,_ ❑Outflow 0.65:" ands lit Inflow Area=0.757 ac : _ -0.55= Peak Depth=0.17' 0.5: Max Vek=1 .4 fps 0.45 n=0.020 w 0.4, 0.35- r L=100.0' u 0.3- � 8=0.0050 ''/ 0.25- ." - /; _..Capacity4T.98 cfs ... 0.15- `I��, • �� dr,,,zor 01, 0.05 0 . . 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Huttig Storage Addition Type IA 24-hr 10-year Rainfall=3.45" Prepared by Westlake Consultants, Inc. Page 8 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Inflow Area = 0.757 ac, Inflow Depth = 2.56" for 10-year event Inflow = 0.62 cfs @ 7.89 hrs, Volume= 0.162 of Outflow = 0.23 cfs @ 8.71 hrs, Volume= 0.154 af, Atten= 63%, Lag= 49.0 min Primary = 0.23 cfs @ 8.71 hrs, Volume= 0.154 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 150.01' © 8.71 hrs Surf.Area= 1,543 sf Storage= 1,512 cf Plug-Flow detention time= 107.3 min calculated for 0.154 af(95% of inflow) Center-of-Mass det. time= 81.5 min ( 729.4 - 647.9 ) # Invert Avail.Storage Storage Description 1 146.90' 2,345 cf Custom Stage Data (Prismatic) Listed below Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 146.90 0 0 0 148.28 4 3 3 149.00 833 301 304 150.00 1,532 1,183 1,487 150.50 1,902 859 2,345 # Routing Invert Outlet Devices 1 Primary 146.90' 1.6" Vert. Orifice/Grate C= 0.620 2 Primary 149.62' 2.7" Vert. Orifice/Grate C= 0.620 Primary OutFlow Max=0.23 cfs @ 8.71 hrs HW=150.01' (Free Discharge) AL1=Orifice/Grate (Orifice Controls 0.12 cfs @ 8.7 fps) 2=Orifice/Grate (Orifice Controls 0.11 cfs @ 2.6 fps) Huttig Storage Addition Type IA 24-hr 10-year Rainfall=3.45" Prepared by Westlake Consultants, Inc. Page 9 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Hydrograph fm Inflow II 108205. [I Primary 0.65- Inflow Area=0.757 ac 0.6 0.55- Peak Elev=150.01' 0.5_.. Storage=1,512 cf 0.45= 0.4- M 0.353' 0 u. 0.3-' 0.25: " 1.23 $47/ 0.2] /0% ■ rifsi-1 7,er,ii 0.05 ^6 7 8 9 10 11 12 13 14 15 .16 17 18 19 20 Time (hours) Huttig Storage Addition Type IA 24-hr 25-year Rainfall=3.90" Prepared by Westlake Consultants, Inc. Page 10 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Subcatchment 2: Developed Conditions Runoff = 0.70 cfs @ 7.85 hrs, Volume= 0.184 af, Depth= 2.92" Runoff by SBUH method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type IA 24-hr 25-year Rainfall=3.90" Area (sf) CN Description 32,995 98 Paved parking & roofs Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.4 85 0.0150 1.0 Sheet Flow, Smooth surfaces n= 0.011 P2= 2.50" 1.5 255 0.0050 2.8 1.55 Circular Channel (pipe), Diam= 10.0" Area 0.5 sf Perim= 2.6' r= 0.21' n= 0.013 2.9 340 Total Subcatchment 2: Developed Conditions Hydrograph ❑ Runoff 0.75 • 0.70 ds `--- yP 0.7�' Y .. .._ _ _._ _ _ :.. _ . . . .. . _. - 25-year. T � 1A-24hr2 0.65i" RainfallF3.90 0.55= Runoff Area=32,995 sf Runoff:Volume C©.184_af po 4- .Run of#...Depth=2.92" flt° Flow Len th=340' 0.35= 9 0.3 710=2.9 min 0.25 0.2-1 CN=98 0.15 0.1= 0.05- 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Huttig Storage Addition Type IA 24-hr 25-year Rainfall=3.90" Prepared by Westlake Consultants, Inc. Page 11 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Reach 3: WQ Swale Inflow Area = 0.757 ac, Inflow Depth = 2.92" for 25-year event Inflow = 0.70 cfs @ 7.85 hrs, Volume= 0.184 of Outflow = 0.70 cfs @ 7.89 hrs, Volume= 0.184 af, Atten= 0%, Lag= 2.0 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Max. Velocity= 1.4 fps, Min. Travel Time= 1.2 min Avg. Velocity = 0.8 fps, Avg. Travel Time= 2.0 min Peak Depth= 0.18' @ 7.87 hrs Capacity at bank full= 4.98 cfs 2.00' x 0.50' deep channel, n= 0.020 Length= 100.0' Slope= 0.0050 '/' Side Slope Z-value= 4.0 '/' Reach 3: WQ Swale Hydrograph / ❑ Inflow l o7o cts ❑Outflow 0.75= 10 Inflow Area=b 757 ac 0.7: 0.65: Peek Depth=0:18' 0.6= .- : 0.55: ;....._ Max'Vel=1 .4 fps - 0.5: n=0.020 N 0.45;" • VA 0.4. L=100 3 ' 0.35 " 1/ _ r LL r - 6=0.0050 'f' 0.3-' 0.25 i' : Ca acity=4a8 cfs 0.2 /y 0.15: �� '`��yh�',/�j�®+ �I�.�i�`J '. 0.1- _f 0.05 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) Huttig Storage Addition Type IA 24-hr 25-year Rainfall=3.90" Prepared by Westlake Consultants, Inc. Page 12 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Inflow Area = 0.757 ac, Inflow Depth = 2.91" for 25-year event Inflow = 0.70 cfs @ 7.89 hrs, Volume= 0.184 of Outflow = 0.26 cfs @ 8.52 hrs, Volume= 0.179 af, Atten= 63%, Lag= 38.1 min Primary = 0.26 cfs @ 8.52 hrs, Volume= 0.179 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 150.10' @ 8.52 hrs Surf.Area= 1,604 sf Storage= 1,653 cf Plug-Flow detention time= 87.7 min calculated for 0.178 af (97% of inflow) Center-of-Mass det. time 73.7 min ( 721.0 - 647.3 ) Invert Avail.Storage Storage Description 1 146.90' 2,345 cf Custom Stage Data (Prismatic) Listed below Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 146.90 0 0 0 148.28 4 3 3 149.00 833 301 304 150.00 1,532 1,183 1,487 150.50 1,902 859 2,345 # Routing Invert Outlet Devices 1 Primary 146.90' 1.7"Vert. Orifice/Grate C= 0.620 2 Primary 149.48' 2.5" Vert. Orifice/Grate C= 0.620 Primary OutFlow Max=0.26 cfs @ 8.52 hrs HW=150.10' (Free Discharge) .1=Orifice/Grate (Orifice Controls 0.14 cfs @ 8.8 fps) 2=OrificelGrate (Orifice Controls 0.12 cfs @ 3.6 fps) Huttig Storage Addition Type IA 24-hr 25-year Rainfall=3.90" Prepared by Westlake Consultants, Inc. Page 13 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Inflow Area = 0.757 ac, Inflow Depth = 2.91" for 25-year event Inflow = 0.70 cfs @ 7.89 hrs, Volume= 0.184 of Outflow = 0.26 cfs @ 8.71 hrs, Volume= 0.170 af, Atten= 64%, Lag= 49.7 min Primary = 0.26 cfs @ 8.71 hrs, Volume= 0.170 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 150.17' @ 8.71 hrs Surf.Area= 1,660 sf Storage= 1,783 cf Plug-Flow detention time= 112.5 min calculated for 0.170 af (93% of inflow) Center-of-Mass det. time= 74.0 min ( 721.3 - 647.3 ) Invert Avail.Storage Storage Description 1 146.90' 2,345 cf Custom Stage Data (Prismatic) Listed below Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 146.90 0 0 0 148.28 4 3 3 149.00 833 301 304 150.00 1,532 1,183 1,487 150.50 1,902 859 2,345 # Routing Invert Outlet Devices 1 Primary 146.90' 1.6" Vert. Orifice/Grate C= 0.620 2 Primary 149.62' 2.7" Vert. Orifice/Grate C= 0.620 Primary OutFlow Max=0.26 cfs @ 8.71 hrs HW=150.17' (Free Discharge) I1=Orifice/Grate (Orifice Controls 0.12 cfs @ 8.9 fps) 2=Orifice/Grate (Orifice Controls 0.13 cfs @ 3.3 fps) Huttig Storage Addition Type IA 24-hr 25-year Rainfall=3.90" Prepared by Westlake Consultants, Inc. Page 14 HydroCAD®7.00 s/n 002749 © 1986-2003 Applied Microcomputer Systems 4/13/2005 Pond 4: Detention Pond Hydrograph . Primary _ ❑ Inflow ary 1 0.75: - ' 0.7: InfloWArea=0.757 ac 0.65-• Peak- lev-15 :1 . . ... _...... Amt 0.55=' 1 l Stioirage- 83 cf 0.5- m 0.45= ° 0.35- . LI, 13.37-' 0.25= 0.2: 0.15- ��.�.��.�� J i C/0.05' 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Time (hours) HUTTIG STORAGE ADDITION Tigard, OR 6.0 REFERENCE TABLES & MAPS Water Features Washington County,Oregon [Depths of layers are in feet. See text for definitions of terms used in this table. Estimates of the frequency of pending and flooding apply to the whole year rather than to individual months. Absence of an entry indicates that the feature is not a concern or that data were not estimated] Water table Ponding Flooding Map symbol Hydrologic Surface runoff Month and soil name group Upper limit Lower limit Surface depth Duration Frequency Duration Frequency Ft Ft Ft 1: Aloha C --- January 1.5-2.0 1.7-3.3 -- -- None --- None February 1.5-2.0 1.7-3.3 --- --- None -- None March 1.5-2.0 1.7-3.3 -- -- None --- None April 1.5-2.0 1.7-3.3 --- -- None --- None December 1.5-2.0 1.7-3.3 -- --- None --- None 42: Verboort D --- January 0.0-2.0 0.8-2.0 -- --- None Brief Frequent February 0.0-2.0 0.8-2.0 --- --- None Brief Frequent March 0.0-2.0 0.8-2.0 -- --- None Brief Frequent April 0.0-2.0 0.8-2.0 -- --- None Brief Frequent December 0.0-2.0 0.8-2.0 --- --- None Brief Frequent USDANatural Resources This report shows only the major sods in each map unit.Others may exist Tabular Data Version: 1 Conservation Service Tabular Data Version Date:04/27/2004 Page 1 of 1 Qt 1J 1J -• k _- X 31. - •. .... - ri n ;.% ihlt . A-:—� .,..„.. .r.,..; „....„y • . �a lr I a a,� �• 5 48' ,.y. 4 ep w i41: ! ., i; . -..,..:,, ..,„ tr. A fedi sr ,-.., ., ...,. ... .., : it,„:1 , fig: : . , 1,-, : 4 �' t^ r 7 ' 1 a i fi,..ft- " � t ' �"r i .R iY a y. a ry ids. ' on •,.+. i a ...., „..,..' idlill ' - - 4 .r. ' s _.4-f �.: Slur. to;`^ tt i fi ' Sw>2 '§`;`* '+ }, �„ _ w 1' '6 ' � r. } �• C . Al- a., 4� py x @ k"k. • s.. .a,;'t• Wry, - "— ; ti lf' a ." a . LilLi,, -,*:;:l,; rya #'� ...». •`t "":7 ,. � . IL .«• x11.3P ,.. M Elp�c,�ied wife�4r+Gilwl - j 1 Q�12 6 R14ic ,- �.., �, «.. �� . II a�� n,