HomeMy WebLinkAboutRiver Terrace East No. 3SW
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LIMITS OF PHASE 3
PROJECT CONSTRUCTION
OVERALL PROJECT
BOIUNDARY
1 INCH = 150 FEET
150 75 150
SCALE
0
WASHINGTON COUNTY BENCHMARK NO. 107,
A BRASS DISK SET IN CONCRETE, SOUTH SIDE OF
S.W. SCHOLLS FERRY RD NEAR PROJECTED CENTERLINE
OF S.W. 175TH AVE.
ELEVATION DATUM: NGVD 29, ELEVATION = 306.552
UTILITIES & SERVICES:
WATER:
STORM:
SEWER:
POWER:
GAS:
FIRE:
POLICE:
SCHOOL:
PARKS:
PHONE:
WASTE DISPOSAL:
CABLE:
BENCHMARK:
TAYLOR MORRISON INC.
109 E. 13TH ST.
VANCOUVER, WA 98660
[P] 503-221-1920
CONTACT: CHRIS WALTHER
APPLICANT:
PACIFIC COMMUNITY DESIGN, INC
12564 SW MAIN ST.
TIGARD, OR 97223
[P] 503-941-9484
CONTACT: PATRICK ESPINOSA, PE
CIVIL ENGINEER:
PACIFIC COMMUNITY DESIGN, INC
12564 SW MAIN ST.
TIGARD, OR 97223
[P] 503-941-9484
CONTACT: STACY CONNERY, AICP
PLANNER:
KITTELSON & ASSOCIATES, INC
610 SW ALDER STREET, STE 700
PORTLAND, OR 97205
[P] 503-228-5230
CONTACT: JULIA KUHN, PE
TRAFFIC ENGINEER:
GEODESIGN, INC
15575 SW SEQUOIA PARKWAY, SUITE 100
PORTLAND, OR 97224
[P] 503-968-8787
CONTACT: SHAWN DIMKE, G.E., P.E.
GEOTECHNICAL ENGINEER:
SHEET INDEX:
GROSS ACREAGE: 0.69 AC (4 LOTS)
PORTION OF TAX LOT 200:
CRESCENT GROVE CEMETERY
ASSOCIATION
TAX LOT 24300:
KINTON LAND & BISON, LLC
OWNERS:
PACIFIC COMMUNITY DESIGN, INC
12564 SW MAIN ST.
TIGARD, OR 97223
[P] 503-941-9484
CONTACT: TRAVIS JANSEN, PLS, PE
SURVEYOR:
SWCA ENVIRONMENTAL CONSULTANTS
434 NW SIXTH AVENUE, STE 304
PORTLAND, OR 97209
[P] 503-224-0333
CONTACT: MIRTH WALKER, PWS, CWD
NATURAL RESOURCE
CONSULTANT:
TL 24300 & PORTION OF TL 200 TOWNSHIP 2 SOUTH, RANGE 1 WEST, SEC. 6 W.M.
CITY OF TIGARD
WASHINGTON COUNTY, OREGON
RIVER TERRACE EAST NO.3 PHASE 3
SW BULL MOUNTAIN RD.
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VICINITY MAP
PACIFIC COMMUNITY DESIGN, INC
12564 SW MAIN ST.
TIGARD, OR 97223
[P] 503-941-9484
CONTACT: KERRY LANKFORD, RLA, CLARB
LANDSCAPE ARCHITECT:
Construction Documents
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ELEVATION DATUM: NGVD 29
GEODESIGN, INC
River Terrace
East No. 3
Phase 3
REVISIONS
DATE DESCRIPTION
REVIEWED BY:
TYPE:
PROJECT NO.:
AS-BUILTS
395-061
KCS
RENEWS: JUNE 30, 2022
12564 SW Main Street Tigard, OR
97223
[T] 503-941-9484
05/18/20211ST SUBMITTAL:
SW SCHOLLS FERRY RD.
PROJECT
SITE
CITY OF TIGARD WATER, [P] 503-718-2591
CITY OF TIGARD, [P] 503-639-4171
CITY OF TIGARD, [P] 503-639-4171
PORTLAND GENERAL ELECTRIC, [P] 503-736-5450
NORTHWEST NATURAL, [P] 503-721-2512
TUALATIN VALLEY FIRE & RESCUE, [P] 503-649-8577
CITY OF TIGARD, [P] 503-629-0111
BEAVERTON SCHOOL DISTRICT, [P] 503-356-4500
CITY OF TIGARD, [P] 503-645-6433
FRONTIER, [P] 503-277-2383
WASTE MANAGEMENT, [P] 800-808-5901
COMCAST, [P] 800-266-2278
ATTENTION:
OREGON LAW REQUIRES YOU TO FOLLOW RULES ADOPTED BY THE OREGON UTILITY NOTIFICATION
CENTER. THOSE RULES ARE SET FORTH IN OAR 952-001-0010 THROUGH 952-001-0090. YOU MAY
OBTAIN COPIES OF THE RULES BY CALLING THE CENTER.
THE TELEPHONE NUMBER FOR THE OREGON UTILITY NOTIFICATION CENTER IS (503) 232-1987
THIS DESIGN COMPLIES WITH ORS 92.044 (7) IN THAT NO UTILITY INFRASTRUCTURE IS DESIGNED TO
BE WITHIN ONE (1) FOOT OF A SURVEY MONUMENT LOCATION SHOWN ON SUBDIVISION OR PARTITION
PLAT. NO DESIGN EXCEPTIONS NOR FINAL FIELD LOCATION CHANGES SHALL BE PERMITTED IF THAT
CHANGE WOULD CAUSE ANY UTILITY INFRASTRUCTURE TO BE PLACES WITHIN THE PROHIBITED AREA.
1
COVER
SHEET
1 COVER SHEET
1.1 CONDITIONS OF APPROVAL
2 GENERAL CONSTRUCTION NOTES
3 EXISTING CONDITIONS & DEMOLITION PLAN
4 SITE PLAN
5 GRADING PLAN
6 LOT GRADING SECTIONS
7 COMPOSITE UTILITY PLAN
8 SW LARKWOOD PL STREET & STORM PLAN & PROFILE
9 SW LARKWOOD PL SANITARY SEWER & WATER PLAN & PROFILE
DTL1 STREET DETAILS
DTL2 SEWER DETAILS
DTL3 WATER DETAILS
L1.01 STREET TREE PLANTING PLAN
EC1 COVER SHEET
EC2 EXISTING CONDITIONS & DEMOLITION PLAN
EC3 EROSION & SEDIMENT CONTROL PLAN
EC4 EROSION & SEDIMENT CONTROL DETAILS
Construction Documents
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ELEVATION DATUM: NGVD 29
GEODESIGN, INC
River Terrace
East No. 3
Phase 3
REVISIONS
DATE DESCRIPTION
REVIEWED BY:
TYPE:
PROJECT NO.:
AS-BUILTS
395-061
KCS
RENEWS: JUNE 30, 2022
12564 SW Main Street Tigard, OR
97223
[T] 503-941-9484
05/18/20211ST SUBMITTAL:
1.1
CONDITIONS
OF APPROVAL
PRIOR TO COMMENCING ANY ONSITE IMPROVEMENTS:
1.PRIOR TO ANY SITE WORK, THE PROJECT ARBORIST SHALL PERFORM A SITE INSPECTION FOR TREE
PROTECTION MEASURES, DOCUMENT COMPLIANCE/NON-COMPLIANCE WITH THE URBAN FORESTRY PLAN
AND SEND WRITTEN VERIFICATION WITH A SIGNATURE OF APPROVAL DIRECTLY TO THE CITY MANAGER OR
DESIGNEE WITHIN ONE WEEK OF THE SITE INSPECTION.
2.THE PROJECT ARBORIST SHALL PERFORM SEMIMONTHLY (TWICE MONTHLY) SITE INSPECTIONS FOR TREE
PROTECTION MEASURES DURING PERIODS OF ACTIVE SITE DEVELOPMENT AND CONSTRUCTION, DOCUMENT
COMPLIANCE/NONCOMPLIANCE WITH THE URBAN FORESTRY PLAN AND SEND WRITTEN VERIFICATION
WITH A SIGNATURE OF APPROVAL DIRECTLY TO THE PROJECT PLANNER WITHIN ONE WEEK OF THE SITE
INSPECTION.
3.PRIOR TO ANY SITE WORK, THE APPLICANT SHALL PROVIDE A FEE IN THE AMOUNT OF $2,054 FOR THE
CITY'S COST OF COLLECTING AND PROCESSING THE INVENTORY DATA FOR THE ENTIRE URBAN FORESTRY
PLAN OF 60 PLANTED TREES, AND TWO EXISTING STANDS TO BE PRESERVED ($154 FIRST TREE + $1,652
($28 X 59) + $248)=$2,054.
4.PRIOR TO ANY SITE WORK, THE APPLICANT SHALL PROVIDE A TREE ESTABLISHMENT BOND IN THE AMOUNT
OF $30,600 (60 PLANTED TREES X $510/TREE) IS REQUIRED.
5.PRIOR TO ANY SITE WORK, THE APPLICANT SHALL OBTAIN ANNEXATION APPROVAL FROM WASHINGTON
COUNTY AND METRO FOR EXTENSION OF THE CLEAN WATER SERVICES DISTRICT AND METRO SERVICE
DISTRICT BOUNDARIES, RESPECTIVELY, TO INCLUDE THE SUBJECT PROPERTY.
6.PRIOR TO ANY SITE WORK, THE APPLICANT SHALL SUBMIT A WRITTEN DEFERRAL AGREEMENT IN A FORM
SATISFACTORY TO THE CITY THAT MEETS THE REQUIREMENTS OF 18.660.030.C.2.B.
SUBMIT TO THE ENGINEERING DEPARTMENT (GREG BERRY, 503-718-2468) FOR REVIEW AND APPROVAL:
7.PRIOR TO COMMENCING ONSITE IMPROVEMENTS, A PUBLIC FACILITY IMPROVEMENT (PFI) PERMIT IS
REQUIRED FOR THIS PROJECT TO COVER ALL INFRASTRUCTURE WORK AND ANY OTHER WORK IN THE
PUBLIC RIGHT-OF-WAY. SIX (6) SETS OF DETAILED PUBLIC IMPROVEMENT PLANS SHALL BE SUBMITTED FOR
REVIEW TO THE ENGINEERING DEPARTMENT. NOTE: THESE PLANS ARE IN ADDITION TO ANY DRAWINGS
REQUIRED BY THE BUILDING DIVISION AND SHOULD ONLY INCLUDE SHEETS RELEVANT TO PUBLIC
IMPROVEMENTS. PUBLIC FACILITY IMPROVEMENT PERMIT PLANS SHALL CONFORM TO CITY OF TIGARD
PUBLIC IMPROVEMENT DESIGN STANDARDS, WHICH ARE AVAILABLE AT CITY HALL AND THE CITY'S WEB
PAGE (WWW.TIGARD-OR.GOV).
8.PRIOR TO COMMENCING GRADING OR ONSITE IMPROVEMENTS, DEMONSTRATE THAT ALL RELIED UPON
OFFSITE FACILITIES ARE COMPLETE AND OPERATIONAL INCLUDING: LOCAL STREET CONNECTIONS TO ROY
ROGERS AND SCHOLLS FERRY ROADS, SANITARY SEWER LINES AND PUMP STATION, STORM DRAIN LINES
AND COMBINED TREATMENT FACILITIES, AND ADEQUATE WATER PRESSURE TO SERVE THE ENTIRE SITE.
9.PRIOR TO “GRADING ONLY” PERMIT THE APPLICANT SHALL COMPLY WITH THE CITY OF TIGARD'S GRADING
ONLY POLICY AND APPLICATION REQUIREMENTS. NOTE: A 1200-CN PERMIT WILL BE REQUIRED PRIOR TO
ANY SITE GRADING.
10.PRIOR TO COMMENCING ONSITE IMPROVEMENTS, A WASHINGTON COUNTY ROW AND/OR FACILITIES
PERMIT IS REQUIRED FOR THIS PROJECT TO COVER ALL INFRASTRUCTURE WORK AND ANY OTHER WORK IN
THE PUBLIC RIGHTS-OF-WAY OF ROY ROGERS ROAD AND SCHOLLS FERRY ROAD. THE APPLICANT SHALL
COMPLY WITH THE RECOMMENDED CONDITIONS BY WASHINGTON COUNTY LUT, DATED SEPTEMBER 29,
2016.
11.PRIOR TO COMMENCING ONSITE IMPROVEMENTS, THE APPLICANT SHALL OBTAIN APPROVAL OF THE
RIGHT-OF-WAY VACATION DESCRIBED IN A MEMORANDUM WITH THE RECOMMENDED CONDITIONS BY
WASHINGTON COUNTY LUT, DATED SEPTEMBER 29, 2016.
12.THE PFI PERMIT PLAN SUBMITTAL SHALL INCLUDE THE EXACT LEGAL NAME, ADDRESS AND TELEPHONE
NUMBER OF THE INDIVIDUAL OR CORPORATE ENTITY WHO WILL BE DESIGNATED AS THE “PERMITTEE”,
AND WHO WILL PROVIDE THE FINANCIAL ASSURANCE FOR THE PUBLIC IMPROVEMENTS. FOR EXAMPLE,
SPECIFY IF THE ENTITY IS A CORPORATION, LIMITED PARTNERSHIP, LLC, ETC. ALSO SPECIFY THE STATE
WITHIN WHICH THE ENTITY IS INCORPORATED AND PROVIDE THE NAME OF THE CORPORATE CONTACT
PERSON. FAILURE TO PROVIDE ACCURATE INFORMATION TO THE ENGINEERING DIVISION WILL DELAY
PROCESSING OF PROJECT DOCUMENTS.
13.THE APPLICANT SHALL PROVIDE A CONSTRUCTION VEHICLE ACCESS AND PARKING PLAN FOR APPROVAL BY
THE CITY ENGINEER. THE PURPOSE OF THIS PLAN IS FOR PARKING AND TRAFFIC CONTROL DURING THE
PUBLIC IMPROVEMENT CONSTRUCTION PHASE. ALL CONSTRUCTION VEHICLE PARKING SHALL BE PROVIDED
ON-SITE. NO CONSTRUCTION VEHICLES OR EQUIPMENT WILL BE PERMITTED TO PARK ON THE ADJOINING
RESIDENTIAL PUBLIC STREETS. CONSTRUCTION VEHICLES INCLUDE THE VEHICLES OF ANY CONTRACTOR
OR SUBCONTRACTOR INVOLVED IN THE CONSTRUCTION OF SITE IMPROVEMENTS OR BUILDINGS PROPOSED
BY THIS APPLICATION, AND SHALL INCLUDE THE VEHICLES OF ALL SUPPLIERS AND EMPLOYEES ASSOCIATED
WITH THE PROJECT.
14.THE APPLICANT'S CITY OF TIGARD PUBLIC FACILITY IMPROVEMENT PERMIT CONSTRUCTION DRAWINGS
SHALL INDICATE THAT FULL WIDTH STREET IMPROVEMENTS, INCLUDING TRAFFIC CONTROL DEVICES,
MAILBOX CLUSTERS, CONCRETE SIDEWALKS, DRIVEWAY APRONS, CURBS, ASPHALTIC CONCRETE
PAVEMENT, SANITARY SEWERS, STORM DRAINAGE, STREET TREES, STREETLIGHTS, AND UNDERGROUND
UTILITIES SHALL BE INSTALLED WITHIN THE INTERIOR SUBDIVISION STREETS. IMPROVEMENTS SHALL BE
DESIGNED AND CONSTRUCTED TO LOCAL STREET STANDARDS.
15.PRIOR TO ISSUANCE OF PERMITS THE APPLICANT SHALL SUBMIT A PLAN FOR THE EAST SIDE OF
PEACHBLOSSOM AVENUE SHOWING HOW STREET TREES OR OTHER APPROPRIATE VEGETATION WILL BE
ACCOMMODATED BEHIND THE SIDEWALK.
16.THE APPLICANT'S WASHINGTON COUNTY FACILITIES PERMIT CONSTRUCTION DRAWINGS SHALL INDICATE
THAT FULL HALF-STREET IMPROVEMENTS, MEETING THE COUNTY'S A-2 STANDARD AND CITY STANDARDS
SHALL BE CONSTRUCTED ALONG THE SCHOLLS FERRY ROAD FRONTAGE. RIGHT-OF-WAY DEDICATION
PROVIDING 55 FEET FROM CENTERLINE (EASTERN PORTION), 80 FEET FROM CENTERLINE (WESTERN
PORTION) AND ADDITIONAL RIGHT-OF-WAY AS NEEDED FOR ADEQUATE CORNER RADIUS AT ROY ROGERS
ROAD. DEDICATION OF ADDITIONAL RIGHT-OF-WAY TO PROVIDE 56 FEET (WEST SIDE) AND 70 FEET (EAST
SIDE) FROM THE CENTERLINE OF SW ROY ROGERS ROAD, INCLUDING AN 18-FOOT SLOPE EASEMENT AND
CORNER RADIUS AT SCHOLLS FERRY ROAD WILL BE REQUIRED. ALL IMPROVEMENTS AND RIGHT-OF-WAY
DEDICATIONS SHALL BE AS DESCRIBED IN A MEMORANDUM WITH THE RECOMMENDED CONDITIONS BY
WASHINGTON COUNTY LUT, DATED SEPTEMBER 29, 2016.
17.THE APPLICANT SHALL PROVIDE TO THE CITY OF TIGARD PRELIMINARY CERTIFICATION FROM A
REGISTERED PROFESSIONAL ENGINEER THAT ADEQUATE SIGHT DISTANCE WILL BE OBTAINED BOTH
DIRECTIONS FOR ALL DEVELOPMENT INTERSECTIONS.
18.THE APPLICANT'S CONSTRUCTION DRAWINGS SHALL SHOW THAT THE PAVEMENT AND ROCK SECTION FOR
THE PROPOSED PRIVATE ALLEYS SHALL MEET THE CITY'S PUBLIC STREET STANDARD FOR A LOCAL
RESIDENTIAL STREET. STREET LIGHTS ON PRIVATE STREETS SHALL BE METERED SEPARATE FROM THE
PUBLIC SYSTEM.
19.SANITARY SEWER AND STORM DRAINAGE DETAILS SHALL BE PROVIDED TO THE CITY FOR REVIEW AND
APPROVAL AS PART OF THE PUBLIC FACILITY IMPROVEMENT (PFI) PERMIT PLANS.
20.PRIOR TO ISSUANCE OF PFI PERMIT, THE APPLICANT SHALL OBTAIN A (CWS) STORMWATER CONNECTION
AUTHORIZATION. PLANS SHALL BE SUBMITTED TO THE CITY OF TIGARD FOR REVIEW. THE CITY WILL
FORWARD PLANS TO CLEAN WATER SERVICES (CWS) AFTER PRELIMINARY REVIEW.
21.PRIOR TO CONSTRUCTION, THE APPLICANT'S DESIGN ENGINEER SHALL SUBMIT DOCUMENTATION, FOR
REVIEW AND APPROVAL BY CWS AND FOR REVIEW BY THE CITY, OF THE DOWNSTREAM CAPACITY OF ANY
EXISTING STORM FACILITY IMPACTED BY THE PROPOSED DEVELOPMENT. THE DESIGN ENGINEER MUST
PERFORM AN ANALYSIS OF THE DRAINAGE SYSTEM DOWNSTREAM OF THE DEVELOPMENT TO A POINT IN
THE DRAINAGE SYSTEM WHERE THE PROPOSED DEVELOPMENT SITE CONSTITUTES TEN PERCENT OR LESS
OF THE TOTAL TRIBUTARY DRAINAGE VOLUME, BUT IN NO EVENT LESS THAN 1/4 MILE. THE APPLICANT
CAN SHOW THEY MEET THIS CONDITION BY RUNNING THE TRUST MODEL FOR DETENTION.
22.THE APPLICANT SHALL BE REQUIRED TO SUBMIT SEPARATE FINAL CALCULATIONS FOR THE COMBINED
WATER QUALITY AND DETENTION FACILITY FOR THE PORTIONS OF THE DEVELOPMENT EAST AND WEST OF
ROY ROGERS ROAD USING THE TRUST MODEL TO MEET THE CONTINUOUS FLOW DURATION
REQUIREMENTS. THE CALCULATIONS AND ANY SUBSEQUENT REVISIONS TO SITE LAYOUT SHALL BE
SUBMITTED WITH THE APPLICANT'S CITY OF TIGARD PFI PERMIT APPLICATION.
23.THE APPLICANT SHALL RESUBMIT DESIGN PLANS FOR THE COMBINED STORMWATER FACILITY MEETING THE
CITY OF TIGARD DESIGN GUIDELINES PRIOR TO ISSUANCE OF SITE PERMITS. THIS SUBMITTAL SHALL
INCLUDE A MAINTENANCE PLAN, IN ACCORDANCE WITH THE CWS DESIGN AND CONSTRUCTION STANDARDS
AND THE CITY OF TIGARD DESIGN GUIDELINES, FOR THE FACILITY AND MUST BE REVIEWED AND APPROVED
BY THE CITY PRIOR TO ISSUANCE OF THE SITE PERMIT.
24.ANY EXTENSION OF PUBLIC WATER LINES SHALL BE SHOWN ON THE PROPOSED PUBLIC FACILITY
IMPROVEMENT (PFI) PERMIT CONSTRUCTION DRAWINGS AND WASHINGTON COUNTY FACILITIES PLANS AND
SHALL BE REVIEWED AND APPROVED BY THE CITY AND WASHINGTON COUNTY, AS A PART OF THE
ENGINEERING DEPARTMENT PLAN REVIEW. NOTE: AN ESTIMATED 12 PERCENT OF THE WATER SYSTEM
COST WILL BE ASSESSED PRIOR TO APPROVAL OF THE CITY OF TIGARD'S PFI PERMIT.
25.AN EROSION CONTROL PLAN SHALL BE PROVIDED AS PART OF THE PUBLIC FACILITY IMPROVEMENT (PFI)
PERMIT DRAWINGS. THE PLAN SHALL CONFORM TO THE "CWS EROSION PREVENTION AND SEDIMENT
CONTROL DESIGN AND PLANNING MANUAL” (CURRENT EDITION) AND SUBMITTED TO CITY OF TIGARD WITH
THE PFI PLANS.
26.A FINAL GRADING PLAN SHALL BE SUBMITTED SHOWING THE EXISTING AND PROPOSED CONTOURS. THE
PLAN SHALL DETAIL THE PROVISIONS FOR SURFACE DRAINAGE OF ALL LOTS, AND SHOW THAT THEY WILL
BE GRADED TO INSURE THAT SURFACE DRAINAGE IS DIRECTED TO THE STREET OR A PUBLIC STORM
DRAINAGE SYSTEM APPROVED BY THE ENGINEERING DIVISION. FOR SITUATIONS WHERE THE BACK
PORTIONS OF LOTS DRAIN AWAY FROM A STREET AND TOWARD ADJACENT LOTS, APPROPRIATE PRIVATE
STORM DRAINAGE LINES SHALL BE PROVIDED TO SUFFICIENTLY CONTAIN AND CONVEY RUNOFF FROM EACH
LOT.
27.THE APPLICANT SHALL INCORPORATE THE RECOMMENDATIONS FROM THE SUBMITTED GEOTECHNICAL
REPORT INTO THE FINAL GRADING PLAN. THE GEOTECHNICAL ENGINEER SHALL BE EMPLOYED BY THE
APPLICANT THROUGHOUT THE ENTIRE CONSTRUCTION PERIOD TO ENSURE THAT ALL GRADING,
INCLUDING CUTS AND FILLS, ARE CONSTRUCTED IN ACCORDANCE WITH THE APPROVED PLAN AND
APPENDIX J OF THE OREGON STRUCTURAL SPECIALTY CODE (OSSC). A FINAL CONSTRUCTION SUPERVISION
REPORT SHALL BE FILED WITH THE ENGINEERING DEPARTMENT PRIOR TO ISSUANCE OF BUILDING PERMITS.
28.THE DESIGN ENGINEER SHALL INDICATE, ON THE GRADING PLAN, WHICH LOTS WILL HAVE NATURAL
SLOPES BETWEEN 10 PERCENT AND 20 PERCENT, AS WELL AS LOTS THAT WILL HAVE NATURAL SLOPES IN
EXCESS OF 20 PERCENT. THIS INFORMATION WILL BE NECESSARY IN DETERMINING IF SPECIAL GRADING
INSPECTIONS AND/OR PERMITS WILL BE NECESSARY WHEN THE LOTS DEVELOP.
29.THE FINAL CONSTRUCTION PLANS SHALL BE SIGNED BY THE GEOTECHNICAL ENGINEER TO ENSURE THAT
THEY HAVE REVIEWED AND APPROVED THE PLANS. THE GEOTECHNICAL ENGINEER SHALL ALSO SIGN THE
AS-BUILT GRADING PLAN AT THE END OF THE PROJECT.
30.THE APPLICANT SHALL OBTAIN A 1200-CN GENERAL PERMIT ISSUED THROUGH THE CITY OF TIGARD
PURSUANT TO ORS 468.740 AND THE FEDERAL CLEAN WATER ACT.
31.PRIOR TO CONSTRUCTION, THE APPLICANT WILL HAVE TO PROVIDE SUFFICIENT INFORMATION TO SHOW
THAT PUBLIC UTILITY CONNECTIONS (WATER, SEWER AND STORM SEWER) CAN BE MADE TO ADJACENT
PROPERTIES.
32.PRIOR TO ISSUANCE OF PERMITS, THE APPLICANT SHALL PROVIDE CALCULATIONS AND PLANS THAT
PROVIDE ADEQUATE WATER SERVICE TO THE PROPOSED DEVELOPMENT ON THE WEST SIDE OF ROY
ROGERS ROAD.
33.THE APPLICANT WILL BE REQUIRED TO PROVIDE WRITTEN APPROVAL FROM TUALATIN VALLEY FIRE AND
RESCUE FOR FIRE FLOW, HYDRANT PLACEMENT AND ACCESS PRIOR TO ISSUANCE OF THE CITY OF TIGARD'S
SITE PERMIT.
PRIOR TO FINAL PLAT APPROVAL:
34.34. PRIOR TO FINAL PLAT APPROVAL, THE APPLICANT SHALL PROVIDE AUTHORIZATION, BINDING ITS
SUCCESSORS AND ASSIGNS, FOR THE CITY TO ENTER THE PROPERTY AND TAKE SUCH ACTIONS AS ARE
NECESSARY TO DEMOLISH AND REMOVE ANY TEMPORARY SALES OFFICE OR MODEL HOME THAT HAS BEEN
DECLARED A NUISANCE. THE APPLICANT SHALL POST A PERFORMANCE BOND IN FAVOR OF THE CITY IN AN
AMOUNT DESIGNATED IN THE TEMPORARY USE APPROVAL AS A REASONABLE ESTIMATE OF THE COST
SUFFICIENT FOR THIS PURPOSE. THE BOND SHALL BE RELEASED UPON FINAL PLAT APPROVAL.
35.PRIOR TO FINAL PLAT APPROVAL, THE APPLICANT SHALL SUBMIT A DETERMINATION IN WRITING BY THE
PARKS AND FACILITIES DIVISION MANAGER REGARDING DEDICATION OF OPEN SPACE OR OTHER PUBLIC
USES.
SUBMIT TO THE ENGINEERING DEPARTMENT (GREG BERRY, 503-718-2468) FOR REVIEW AND APPROVAL:
36.PRIOR TO FINAL PLAT APPROVAL, THE APPLICANT SHALL PAY AN ADDRESSING FEE FOR 38 UNITS IN THE
AMOUNT OF $1,9000.00.
37.PRIOR TO FINAL PLAT APPROVAL, THE APPLICANT SHALL RECORD THE RIGHT-OF-WAY VACATION
DESCRIBED IN A MEMORANDUM WITH THE RECOMMENDED CONDITIONS BY WASHINGTON COUNTY LUT,
DATED SEPTEMBER 29, 2016.
38.PRIOR TO TO APPROVAL OF THE FINAL PLAT, A NON-ACCESS RESERVATION ALONG SW ROY ROGERS AND
SW SCHOLLS FERRY ROAD FRONTAGES SHALL BE PROVIDED.
39.PRIOR TO APPROVAL OF THE FINAL PLAT, THE APPLICANT SHALL PREPARE CONDITIONS, COVENANTS AND
RESTRICTIONS (CC&R'S) FOR THIS PROJECT, TO BE RECORDED WITH THE FINAL PLAT, THAT CLEARLY LAYS
OUT A MAINTENANCE PLAN AND AGREEMENT FOR THE PROPOSED PRIVATE STREETS AND ALLEYS. THE
STREET LIGHTS REQUIRED FOR ALLEYS AND PRIVATE STREETS SHALL BE MAINTAINED AND PAID FOR BY
THE HOA AND METERED SEPARATELY FROM THE PUBLIC STREET LIGHT SYSTEM. THE CC&R'S SHALL
OBLIGATE THE PRIVATE PROPERTY OWNERS WITHIN THE SUBDIVISION TO CREATE A HOMEOWNER'S
ASSOCIATION TO ENSURE REGULATION OF MAINTENANCE FOR THE ALLEYS. THE APPLICANT SHALL SUBMIT
A COPY OF THE CC&R'S TO THE ENGINEERING DIVISION PRIOR TO APPROVAL OF THE FINAL PLAT.
40.PRIOR TO APPROVAL OF THE FINAL PLAT, THE APPLICANT SHALL DEMONSTRATE THAT THEY HAVE
FORMED AND INCORPORATED A HOMEOWNER'S ASSOCIATION.
41.THE APPLICANT'S FINAL PLAT SHALL CONTAIN STATE PLANE COORDINATES ON TWO MONUMENTS WITH A
TIE TO THE CITY'S GLOBAL POSITIONING SYSTEM (GPS) GEODETIC CONTROL NETWORK (GC 22). THESE
MONUMENTS SHALL BE ON THE SAME LINE AND SHALL BE OF THE SAME PRECISION AS REQUIRED FOR THE
SUBDIVISION PLAT BOUNDARY. ALONG WITH THE COORDINATES, THE PLAT SHALL CONTAIN THE SCALE
FACTOR TO CONVERT GROUND MEASUREMENTS TO GRID MEASUREMENTS AND THE ANGLE FROM NORTH
TO GRID NORTH. THESE COORDINATES CAN BE ESTABLISHED BY:
·GPS TIE NETWORKED TO THE CITY'S GPS SURVEY.
·BY RANDOM TRAVERSE USING CONVENTIONAL SURVEYING METHODS.
42.FINAL PLAT APPLICATION SUBMISSION REQUIREMENTS:
A.SUBMIT FOR CITY REVIEW FOUR (4) PAPER COPIES OF THE FINAL PLAT PREPARED BY A LAND
SURVEYOR LICENSED TO PRACTICE IN OREGON, AND NECESSARY DATA OR NARRATIVE.
B.ATTACH A CHECK IN THE AMOUNT OF THE CURRENT FINAL PLAT REVIEW FEE (CONTACT
PLANNING/ENGINEERING PERMIT TECHNICIANS, AT 503-718-2464).
C.THE FINAL PLAT AND DATA OR NARRATIVE SHALL BE DRAWN TO THE MINIMUM STANDARDS SET
FORTH BY THE OREGON REVISED STATUTES (ORS 92.05), WASHINGTON COUNTY, AND BY THE CITY
OF TIGARD.
D.THE RIGHT-OF-WAY DEDICATION FOR ALL PUBLIC STREETS SHALL BE MADE ON THE FINAL PLAT.
E.NOTE: WASHINGTON COUNTY WILL NOT BEGIN THEIR REVIEW OF THE FINAL PLAT UNTIL THEY
RECEIVE NOTICE FROM THE ENGINEERING DEPARTMENT INDICATING THAT THE CITY HAS REVIEWED
THE FINAL PLAT AND SUBMITTED COMMENTS TO THE APPLICANT'S SURVEYOR.
F.AFTER THE CITY AND COUNTY HAVE REVIEWED THE FINAL PLAT, SUBMIT ONE MYLAR OF THE FINAL
PLAT FOR CITY ENGINEER SIGNATURE (FOR PARTITIONS), OR CITY ENGINEER AND COMMUNITY
DEVELOPMENT DIRECTOR SIGNATURES (FOR SUBDIVISIONS).
PRIOR TO ISSUANCE OF BUILDING PERMITS:
43.43. PRIOR TO ISSUANCE OF BUILDING PERMITS, THE APPLICANT SHALL PROVIDE THE PLANNING
DEPARTMENT WITH A PAPER COPY OF THE RECORDED FINAL PLAT.
44.AT THE TIME OF BUILDING PERMIT APPLICATION SUBMITTAL, THE APPLICANT SHALL SUBMIT PLANS AND
ELEVATIONS DEMONSTRATING THAT EACH SINGLE FAMILY DWELLING UNIT IS DESIGNED AND
CONSTRUCTED TO CONFORM TO THE APPLICABLE DESIGN STANDARDS IN 18.660.070.I.
45.UNLESS EXPRESSLY PROVIDED OTHERWISE IN THIS APPROVAL, THIS PROPOSED DEVELOPMENT IS
CONDITIONED ON THE APPLICANT FULLY COMPLYING WITH THE PLANS, SPECIFICATIONS AND
COMMITMENTS SET FORTH IN THE APPLICATION DATED AND RECEIVED BY THE CITY AUGUST 11, 2016,
RESUBMITTED ON SEPTEMBER 26, 2016 AND ALL RELATED SUBMITTALS.
SUBMIT TO THE ENGINEERING DEPARTMENT (KIM MCMILLAN 503-718-2642) FOR REVIEW AND APPROVAL:
46.PRIOR TO ISSUANCE OF BUILDING PERMITS, THE APPLICANT SHALL PROVIDE THE ENGINEERING
DEPARTMENT WITH A PAPER COPY OF THE RECORDED FINAL PLAT.
47.PRIOR TO ISSUANCE OF BUILDING PERMITS WITHIN THE SUBDIVISION, THE CITY ENGINEER SHALL DEEM
THE PUBLIC IMPROVEMENTS SUBSTANTIALLY COMPLETE. SUBSTANTIAL COMPLETION SHALL BE WHEN: 1)
ALL UTILITIES ARE INSTALLED AND INSPECTED FOR COMPLIANCE, INCLUDING FRANCHISE UTILITIES, 2) ALL
LOCAL RESIDENTIAL STREETS SHALL BE FULLY PAVED, 3) ANY OFF-SITE STREET AND/OR UTILITY
IMPROVEMENTS ARE SUBSTANTIALLY COMPLETED, AND 4) ALL PUBLIC STREET LIGHTS ARE INSTALLED AND
READY TO BE ENERGIZED. (NOTE: THE CITY APART FROM THIS CONDITION AND IN ACCORDANCE WITH THE
CITY'S MODEL HOME POLICY, MAY ISSUE MODEL HOME PERMITS).
48.PRIOR TO ISSUANCE OF BUILDING PERMITS, OBTAIN A FINALED WASHINGTON COUNTY FACILITY PERMIT
FOR ANY REQUIRED IMPROVEMENTS TO SW SCHOLLS FERRY ROAD AS REQUIRED BY A WASHINGTON
COUNTY LUT MEMORANDUM DATED SEPTEMBER 29, 2016.
49.PRIOR TO ISSUANCE OF BUILDING PERMITS, THE APPLICANT SHALL PROVIDE THE CITY WITH AS-BUILT
DRAWINGS OF THE PUBLIC IMPROVEMENTS AS FOLLOWS: 1) PAPER, 2) AN ELECTRONIC COPY, AND 3) THE
AS-BUILT DRAWINGS SHALL BE TIED TO THE CITY'S GPS NETWORK. THE APPLICANT'S ENGINEER SHALL
PROVIDE THE CITY WITH AN ELECTRONIC FILE WITH POINTS FOR EACH STRUCTURE (MANHOLES, CATCH
BASINS, WATER VALVES, HYDRANTS AND OTHER WATER SYSTEM FEATURES) IN THE DEVELOPMENT, AND
THEIR RESPECTIVE X AND Y STATE PLANE COORDINATES, REFERENCED TO NAD 83 (91).
50.THE APPLICANT SHALL PROVIDE POST-CONSTRUCTION INTERSECTION SIGHT DISTANCE CERTIFICATION FOR
INTERSECTIONS WITHIN THE DEVELOPMENT.
51.THE PUMP STATION MUST BE FULLY OPERATIONAL AND THE SEWER MAIN CONNECTED TO THE RIVER
TERRACE NORTHWEST DEVELOPMENT PRIOR TO ISSUANCE OF BUILDING PERMITS FOR THE PORTION OF
THE DEVELOPMENT WEST OF ROY ROGERS ROAD.
PRIOR TO OCCUPANCY:
52.PRIOR TO ISSUANCE OF OCCUPANCY, OBTAIN A FINALED WASHINGTON COUNTY FACILITY PERMIT.
CONTINGENT UPON THE FOLLOWING:
A.THE ROAD IMPROVEMENTS COMPLETED TO COUNTY STANDARDS.
B.UPON COMPLETION OF NECESSARY IMPROVEMENTS, SUBMIT FINAL CERTIFICATION OF ADEQUATE
SIGHT DISTANCE IN ACCORDANCE WITH COUNTY CODE, PREPARED AND STAMPED BY A REGISTERED
PROFESSIONAL ENGINEER.
CONDITIONS OF APPROVAL CONDITIONS OF APPROVAL CONDITIONS OF APPROVAL
2
CONSTRUCTION
NOTES
Construction Documents
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ELEVATION DATUM: NGVD 29
GEODESIGN, INC
River Terrace
East No. 3
Phase 3
REVISIONS
DATE DESCRIPTION
REVIEWED BY:
TYPE:
PROJECT NO.:
AS-BUILTS
395-061
KCS
RENEWS: JUNE 30, 2022
12564 SW Main Street Tigard, OR
97223
[T] 503-941-9484
05/18/20211ST SUBMITTAL:
1.AN ESTIMATED 12 PERCENT OF THE WATER SYSTEM COST MUST BE ON DEPOSIT PRIOR TO BEGINNING
CONSTRUCTION ON WATER LINES, AND TO RECEIVE A TPW (CITY OF TIGARD PUBLIC WORKS, WATER
DIVISION) STAMPED APPROVAL ON CONSTRUCTION PLANS.
2.THE CONTRACTOR SHALL MAINTAIN ONE SET OF TPW STAMPED APPROVED PLANS ON THE
CONSTRUCTION SITE AT ALL TIMES.
3.ALL WORK SHALL BE IN ACCORDANCE WITH AWWA (AMERICAN WATER WORKS ASSOCIATION)
STANDARDS.
4.ALL PIPE AND FITTINGS SHALL BE DUCTILE IRON, CEMENT-LINED, OF NEW MANUFACTURE AND MADE
IN THE USA. PIPE SHALL BE "TYTON" JOINT DUCTILE IRON, CLASS 52. ALL FITTINGS SHALL BE MJ
(MECHANICAL JOINT) UNLESS OTHERWISE SPECIFIED.
5.COVER FOR ALL WATER MAINS IN STREET AND RIGHTS-OF-WAY SHALL BE 36". BACKFILL SHALL BE
¾"-0" GRAVEL.
6.ALL VALVE-OPERATING NUTS SHALL BE WITHIN 36" OF FINISHED GRADE, OTHERWISE VALVE
OPERATING NUT EXTENSIONS WILL BE REQUIRED.
7.A 4" X 4" X 8'-0", PAINTED BLUE, SHALL BE INSTALLED IN FRONT OF EVERY 2-INCH WATER SERVICE
LOCATION, AND REMAIN THERE UNTIL THE WATER METER IS INSTALLED. ALL 2-INCH WATER
SERVICES SHALL CONSIST OF A MJ X 2" IPT TEE AND 2" IPT X 110 COMPRESSION FITTING AS
MANUFACTURED BY MUELLER COMPANY.
8.FIRE HYDRANT ASSEMBLY CONSISTS OF A MJ X 6" FLG. (FLANGE) TEE, 6" FLG. X MJ GATE VALVE, 6"
MJ, 5-1/4" MVO, 3-PORT (2-2½" NST HOSE CONNECTION, 1-4½" NST PUMPER), 1½" PENTAGON
OPERATING NUT, OPENING LEFT, COLOR: YELLOW; APPROVED EQUAL: MUELLER CENTURION
A-423, WATERIOUS PACER 6790, CLOW MEDALLION
9.EACH FIRE HYDRANT SHALL BE INSTALLED UPON A PRE-FORMED CONCRETE BLOCK WITH 1½ CUBIC
YARDS OF CRUSHED 2" - ¾" DRAIN ROCK. TARPAPER WILL BE LAID ON TOP OF THE DRAIN ROCK TO
SEPARATE THE ROCK FROM EARTH COVER.
10.ALL SANITARY SEWER LINES WITHIN 10 FEET LATERALLY OR 3 FEET VERTICALLY OF A WATER MAIN
SHALL BE ENCASED IN A REINFORCED CONCRETE JACKET 6" THICK FOR A DISTANCE OF 10 FEET ON
BOTH SIDE OF THE CROSSING. WHERE CROSSINGS ARE NECESSARY, THEY MUST BE MADE AT
APPROXIMATELY 90 DEGREES WITH AT LEAST 18" OF SEPARATION BELOW THE WATER LINE.
11.ALL MAINS WITH A STATIC PRESSURE UP TO 100 PSI (POUNDS PER SQUARE INCH) SHALL BE TESTED
AT 150 PSI FOR 1 HOUR WITH A MAXIMUM LOSS OF 5 PSI. WATER MAINS WITH A STATIC PRESSURE
GREATER THAN 100 PSI SHALL BE PRESSURE TESTED AT 1.5 TIMES THE STATIC PRESSURE FOR 1
HOUR WITH A MAXIMUM LOSS OF 5 PSI.
12.UPON SATISFACTORY COMPLETION OF TESTING, THE NEW MAINS AND CONNECTIONS TO EXISTING
MAINS SHALL BE CLEANED AND FLUSHED WITH POTABLE WATER PRIOR TO DISINFECTION. FLUSHING
VELOCITIES SHALL BE AT LEAST 2.5 FEET PER SECOND. DISINFECTION SHALL BE IN ACCORDANCE
WITH AWWA STANDARD C651-92, THE STATE HEALTH DIVISION AND CITY REQUIREMENTS. THE
CONTINUOUS FEED METHOD OF DISINFECTION SHALL BE USED. DISINFECTING MIXTURE SHALL BE A
CHLORINE-WATER SOLUTION HAVING A FREE CHLORINE RESIDUAL OF 40-50 MG/L (MILLIGRAMS PER
LITER). THE DISINFECTION MIXTURE WILL BE PREPARED BY INJECTING A CALCIUM/SODIUM
HYPOCHLORITE AND WATER SOLUTION INTO THE PIPELINE AT A MEASURED RATE WHILE FRESH
(POTABLE) WATER IS ALLOWED TO FLOW THROUGH THE PIPELINE SO THAT THE CHLORINE-WATER
SOLUTION IS OF THE SPECIFIED STRENGTH. TREATED (CHLORINATED) WATER SHALL BE RETAINED IN
THE PIPELINE LONG ENOUGH TO DESTROY ALL NONSPORE-FORMING BACTERIA. TYPICAL RETENTION
PERIOD IS 24 HOURS. AT THE END OF THE 24-HOUR PERIOD, THE PIPELINE IS TO HAVE A FREE
CHLORINE RESIDUAL OF A LEAST 10 MG/L. AFTER SATISFACTORY CHLORINATION, FLUSH THE
WATER FROM THE LINE UNTIL THE WATER THROUGHOUT THE PIPELINE IS EQUAL CHEMICALLY AND
BACTERIOLOGICALLY TO THE PERMANENT SOURCE OF SUPPLY.
DISPOSE OF THE DISINFECTION WATER IN AN APPROVED MANNER. DO NOT ALLOW DISINFECTION
WATER TO FLOW INTO A WATERWAY WITHOUT ADEQUATE DILUTION OR OTHER SATISFACTORY
METHODS OF REDUCING CHLORINE RESIDUALS TO A SAFE LEVEL AS MANDATED BY DEQ. AFTER
DISPOSAL AND FLUSHING OF THE DISINFECTION SOLUTION, THERE WILL BE ANOTHER 24-HOUR
RETENTION PERIOD PRIOR TO BACTERIOLOGICAL TESTING. BACTERIOLOGICAL TESTS WILL BE
TAKEN BY TPW.
13.PROVIDE AN ECLIPSE NO. 88 SAMPLING STATION MANUFACTURED BY KUPFERTE FOUNDRY, ST.
LOUIS, MO 63102. THE SAMPLING STATION SHALL BE 2'-0" BURY, WITH A ¾" FIPT(FEMALE IRON PIPE
THREAD) INLET, AND A ¾" UNTHREADED HOSE NOZZLE. ALL SAMPLING STATIONS SHALL BE
ENCLOSED IN A LOCKABLE, NON-REMOVABLE, ALUMINUM-CAST HOUSING. WHEN OPENED, THE
SAMPLING STATION SHALL REQUIRE NO KEY FOR OPERATION, AND THE WATER WILL FLOW IN AN
ALL-BRASS WATERWAY. ALL WORKING PARTS WILL BE OF BRASS AND BE REMOVABLE FROM ABOVE
GROUND WITH NO DIGGING. A COPPER VENT TUBE (STANDARD) WILL ENABLE THE SAMPLING
STATION TO BE PUMPED FREE OF STANDING WATER TO PREVENT FREEZING, AND TO MINIMIZE
BACTERIA GROWTH. THE EXTERIOR PIPING WILL BE BRASS, AND A ¼" BALL VALVE SHALL BE
PROVIDED IN PLACE OF THE ¼" PET COCK ON THE VENT PIPE.
14.WATER METERS WILL BE INSTALLED BY TPW UPON INDIVIDUAL REQUEST AND PAYMENT BY OTHERS
(OWNERS). ALL WATER METERS CONNECTED TO AN IRRIGATION SYSTEM MUST HAVE THE PROPER
OREGON STATE APPROVED BACKFLOW PREVENTION DEVICE , MINIMUM OF A DCVA (DOUBLE CHECK
VALVE ASSEMBLY) INSTALLED ON THE PROPERTY SIDE OF THE WATER METER. IN ADDITION, EVERY
METER FOR COMMERCIAL, MULTI-FAMILY, INDUSTRIAL, AND INSTITUTIONAL SERVICE, REGARDLESS
OF SIZE, SHALL HAVE THE PROPER OREGON STATE APPROVED BACKFLOW PREVENTION DEVICE
MINIMUM OF A DCVA INSTALLED ON THE PROPERTY SIDE OF THE METER. THE BACKFLOW
PREVENTION DEVICE SHALL BE INSTALLED AND TESTED BY THE OWNER, WITH THE RESULTS
FORWARDED TO TPW WATER DIVISION, BEFORE WATER SERVICES CAN BEGIN.
15.ALL JOINTS TO BE RESTRAINED.
OPERATION OF VALVES IN THE TIGARD WATER SERVICE AREA IS PROHIBITED
WATER CONSTRUCTION NOTES
1.OWNER OR DESIGNATED PERSON SHALL BE RESPONSIBLE FOR PROPER INSTALLATION AND
MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL MEASURES, IN ACCORDANCE WITH
LOCAL, STATE, AND FEDERAL REGULATIONS.
2.PRIOR TO ANY LAND DISTURBING ACTIVITIES, THE BOUNDARIES OF THE CLEARING LIMITS,
VEGETATED BUFFERS, AND ANY SENSITIVE AREAS SHOWN ON THIS PLAN SHALL BE CLEARLY
DELINEATED IN THE FIELD. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE IS PERMITTED
BEYOND THE CLEARING LIMITS. THE OWNER/PERMITTEE MUST MAINTAIN THE DELINEATION FOR
THE DURATION OF THE PROJECT. NOTE: VEGETATED CORRIDORS TO BE DELINEATED WITH
ORANGE CONSTRUCTION FENCE OR APPROVED EQUAL.
3.PRIOR TO ANY LAND DISTURBING ACTIVITIES, THE BMP's THAT MUST BE INSTALLED ARE A GRAVEL
CONSTRUCTION ENTRANCE, PERIMETER SEDIMENT CONTROL, AND INLET PROTECTION. THESE
BMP's MUST BE MAINTAINED FOR THE DURATION OF THE PROJECT.
4.IF VEGETATIVE SEED MIXES ARE SPECIFIED, SEEDING MUST TAKE PLACE NO LATER THAT
SEPTEMBER 1; THE TYPE AND PERCENTAGES OF SEED IN THE MIX MUST BE IDENTIFIED ON THE
PLANS.
5.ALL PUMPING OF SEDIMENT LADEN WATER SHALL BE DISCHARGED OVER AN UNDISTURBED,
PREFERABLY VEGETATED AREA, AND THROUGH A SEDIMENT CONTROL BMP i.e. (FILTER BAG).
6.THE ESC PLAN MUST BE KEPT ON SITE. ALL MEASURES SHOWN ON THE PLAN MUST BE INSTALLED
PROPERLY TO ENSURE THAT SEDIMENT OR SEDIMENT LADEN WATER DOES NOT ENTER A SURFACE
WATER SYSTEM, ROADWAY, OR OTHER PROPERTIES.
7.THE ESC MEASURES SHOWN ON THIS PLAN ARE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE
CONDITIONS. DURING THE CONSTRUCTION PERIOD, THESE MEASURES SHALL BE UPGRADED AS
NEEDED TO COMPLY WITH ALL APPLICABLE LOCAL, STATE, AND FEDERAL EROSION CONTROL
REGULATIONS. CHANGES TO THE APPROVED ESC PLAN MUST BE SUBMITTED IN THE FORM OF AN
ESC REVISION TO CWS PER THE 1200 C PERMIT.
8.IN AREAS SUBJECT TO WIND EROSION, APPROPRIATE BMP's MUST BE USED WHICH MAY INCLUDE
THE APPLICATION OF FINE WATER SPRAYING, PLASTIC SHEETING, MULCHING, OR OTHER
APPROVED MEASURES.
9.ALL EXPOSED SOILS MUST BE COVERED DURING THE WET WEATHER PERIOD, OCTOBER 01 - MAY 31.
CLEAN WATER SERVICES - SPECIFIC EROSION
CONTROL NOTES
1.ALL PERMIT REGISTRANTS MUST IMPLEMENT THE ESCP. FAILURE TO IMPLEMENT ANY OF THE CONTROL
MEASURES OR PRACTICES DESCRIBED IN THE ESCP IS A VIOLATION OF THE PERMIT. (SCHEDULE A 8.A)
2.THE ESCP MEASURES SHOWN ON THIS PLAN ARE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE
CONDITIONS. DURING THE CONSTRUCTION PERIOD, UPGRADE THESE MEASURES AS NEEDED TO
COMPLY WITH ALL APPLICABLE LOCAL, STATE, AND FEDERAL EROSION AND SEDIMENT CONTROL
REGULATIONS. (SCHEDULE A.8.C.II.(1)(C))
3.SUBMISSION OF ALL ESCP REVISIONS IS NOT REQUIRED. SUBMITTAL OF THE ESCP REVISIONS IS ONLY
UNDER SPECIFIC CONDITIONS. SUBMIT ALL NECESSARY REVISION TO DEQ OR AGENT. (SCHEDULE
A.12.C.III)
4.PHASE CLEARING AND GRADING TO THE MAXIMUM EXTENT PRACTICAL TO PREVENT EXPOSED INACTIVE
AREAS FROM BECOMING A SOURCE OF EROSION. (SCHEDULE A 8.C.II.(1)(D))
5.IDENTIFY, MARK, AND PROTECT (BY FENCING OFF OR OTHER MEANS) CRITICAL RIPARIAN AREAS AND
VEGETATION INCLUDING IMPORTANT TREES AND ASSOCIATED ROOTING ZONES, AND VEGETATION
AREAS TO BE PRESERVED. IDENTIFY VEGETATIVE BUFFER ZONES BETWEEN THE SITE AND SENSITIVE
AREAS (E.G., WETLANDS), AND OTHER AREAS TO BE PRESERVED, ESPECIALLY IN PERIMETER AREAS.
(SCHEDULE A.8.C.I.(1) & (2))
6.PRESERVE EXISTING VEGETATION WHEN PRACTICAL AND RE-VEGETATE OPEN AREAS. RE-VEGETATE
OPEN AREAS WHEN PRACTICABLE BEFORE AND AFTER GRADING OR CONSTRUCTION. IDENTIFY THE
TYPE OF VEGETATIVE SEED MIX USED. (SCHEDULE A.7.B.III(1) AND A.7.B.III(3))
7.EROSION AND SEDIMENT CONTROL MEASURES INCLUDING PERIMETER SEDIMENT CONTROL MUST BE IN
PLACE BEFORE VEGETATION IS DISTURBED AND MUST REMAIN IN PLACE AND BE MAINTAINED, REPAIRED,
AND PROMPTLY IMPLEMENTED FOLLOWING PROCEDURES ESTABLISHED FOR THE DURATION OF
CONSTRUCTION, INCLUDING PROTECTION FOR ACTIVE STORM DRAIN INLETS AND CATCH BASINS AND
APPROPRIATE NON-STORMWATER POLLUTION CONTROLS. (SCHEDULE A.7.D.I AND A.8.C)
8.ESTABLISH CONCRETE TRUCK AND OTHER CONCRETE EQUIPMENT WASHOUT AREAS BEFORE BEGINNING
CONCRETE WORK. (SCHEDULE A.8.C.I.(6))
9.APPLY TEMPORARY AND/OR PERMANENT SOIL STABILIZATION MEASURES IMMEDIATELY ON ALL
DISTURBED AREAS AS GRADING PROGRESSES AND FOR ALL ROADWAYS INCLUDING GRAVEL ROADWAYS.
(SCHEDULE A.8.C.II.(2))
10.ESTABLISH MATERIAL AND WASTE STORAGE AREAS, AND OTHER NON-STORMWATER CONTROLS.
(SCHEDULE A.8.C.I.(7))
11.PREVENT TRACKING OF SEDIMENT ONTO PUBLIC OR PRIVATE ROADS USING BMPS SUCH AS: GRAVELED
(OR PAVED) EXITS AND PARKING AREAS, GRAVEL ALL UNPAVED ROADS LOCATED ONSITE, OR USE AN
EXIT TIRE WASH. THESE BMPS MUST BE IN PLACE PRIOR TO LAND-DISTURBING ACTIVITIES. (SCHEDULE
A 7.D.II.(1) AND A.8.C.I(4))
12.WHEN TRUCKING SATURATED SOILS FROM THE SITE, EITHER USE WATER-TIGHT TRUCKS OR DRAIN
LOADS ON SITE. (SCHEDULE A.7.D.II.(3))
13.USE BMPS TO PREVENT OR MINIMIZE STORMWATER EXPOSURE TO POLLUTANTS FROM SPILLS; VEHICLE
AND EQUIPMENT FUELING, MAINTENANCE, AND STORAGE; OTHER CLEANING AND MAINTENANCE
ACTIVITIES; AND WASTE HANDLING ACTIVITIES. THESE POLLUTANTS INCLUDE FUEL, HYDRAULIC FLUID,
AND OTHER OILS FROM VEHICLES AND MACHINERY, AS WELL AS DEBRIS, LEFTOVER PAINTS, SOLVENTS,
AND GLUES FROM CONSTRUCTION OPERATIONS. (SCHEDULE A.7.E.I.(2))
14.IMPLEMENT THE FOLLOWING BMPS WHEN APPLICABLE: WRITTEN SPILL PREVENTION AND RESPONSE
PROCEDURES, EMPLOYEE TRAINING ON SPILL PREVENTION AND PROPER DISPOSAL PROCEDURES, SPILL
KITS IN ALL VEHICLES, REGULAR MAINTENANCE SCHEDULE FOR VEHICLES AND MACHINERY, MATERIAL
DELIVERY AND STORAGE CONTROLS, TRAINING AND SIGNAGE, AND COVERED STORAGE AREAS FOR
WASTE AND SUPPLIES. (SCH A 7.E.III.)
15.USE WATER, SOIL-BINDING AGENT OR OTHER DUST CONTROL TECHNIQUE AS NEEDED TO AVOID
WIND-BLOWN SOIL. (SCHEDULE A 7.B.II)
16.THE APPLICATION RATE OF FERTILIZERS USED TO REESTABLISH VEGETATION MUST FOLLOW
MANUFACTURER'S RECOMMENDATIONS TO MINIMIZE NUTRIENT RELEASES TO SURFACE WATERS.
EXERCISE CAUTION WHEN USING TIME-RELEASE FERTILIZERS WITHIN ANY WATERWAY RIPARIAN ZONE.
(SCHEDULE A.9.B.III)
17.IF A STORMWATER TREATMENT SYSTEM (FOR EXAMPLE, ELECTRO-COAGULATION, FLOCCULATION,
FILTRATION, ETC.) FOR SEDIMENT OR OTHER POLLUTANT REMOVAL IS EMPLOYED, SUBMIT AN
OPERATION AND MAINTENANCE PLAN (INCLUDING SYSTEM SCHEMATIC, LOCATION OF SYSTEM,
LOCATION OF INLET, LOCATION OF DISCHARGE, DISCHARGE DISPERSION DEVICE DESIGN, AND A
SAMPLING PLAN AND FREQUENCY) BEFORE OPERATING THE TREATMENT SYSTEM. OBTAIN PLAN
APPROVAL BEFORE OPERATING THE TREATMENT SYSTEM. OPERATE AND MAINTAIN THE TREATMENT
SYSTEM ACCORDING TO MANUFACTURER'S SPECIFICATIONS. (SCHEDULE A.9.D)
18.TEMPORARILY STABILIZE SOILS AT THE END OF THE SHIFT BEFORE HOLIDAYS AND WEEKENDS, IF
NEEDED. THE REGISTRANT IS RESPONSIBLE FOR ENSURING THAT SOILS ARE STABLE DURING RAIN
EVENTS AT ALL TIMES OF THE YEAR. (SCHEDULE A 7.B)
19.AT THE END OF EACH WORKDAY SOIL STOCKPILES MUST BE STABILIZED OR COVERED, OR OTHER BMPS
MUST BE IMPLEMENTED TO PREVENT DISCHARGES TO SURFACE WATERS OR CONVEYANCE SYSTEMS
LEADING TO SURFACE WATERS. (SCHEDULE A 7.E.II.(2))
20.CONSTRUCTION ACTIVITIES MUST AVOID OR MINIMIZE EXCAVATION AND CREATION OF BARE GROUND
DURING WET WEATHER. (SCHEDULE A.7.A.I)
21.SEDIMENT FENCE: REMOVE TRAPPED SEDIMENT BEFORE IT REACHES ONE THIRD OF THE ABOVE GROUND
FENCE HEIGHT AND BEFORE FENCE REMOVAL. (SCHEDULE A.9.C.I)
22.OTHER SEDIMENT BARRIERS (SUCH AS BIOBAGS): REMOVE SEDIMENT BEFORE IT REACHES TWO INCHES
DEPTH ABOVE GROUND HEIGHT. AND BEFORE BMP REMOVAL. (SCHEDULE A.9.C.II)
23.CATCH BASINS: CLEAN BEFORE RETENTION CAPACITY HAS BEEN REDUCED BY FIFTY PERCENT.
SEDIMENT BASINS AND SEDIMENT TRAPS: REMOVE TRAPPED SEDIMENTS BEFORE DESIGN CAPACITY HAS
BEEN REDUCED BY FIFTY PERCENT AND AT COMPLETION OF PROJECT. (SCHEDULE A.9.C.III & IV)
24.WITHIN 24 HOURS, SIGNIFICANT SEDIMENT THAT HAS LEFT THE CONSTRUCTION SITE, MUST BE
REMEDIATED. INVESTIGATE THE CAUSE OF THE SEDIMENT RELEASE AND IMPLEMENT STEPS TO
PREVENT A RECURRENCE OF THE DISCHARGE WITHIN THE SAME 24 HOURS. ANY IN-STREAM CLEAN UP
OF SEDIMENT SHALL BE PERFORMED ACCORDING TO THE OREGON DIVISION OF STATE LANDS REQUIRED
TIMEFRAME. (SCHEDULE A.9.B.I)
25.THE INTENTIONAL WASHING OF SEDIMENT INTO STORM SEWERS OR DRAINAGE WAYS MUST NOT OCCUR.
VACUUMING OR DRY SWEEPING AND MATERIAL PICKUP MUST BE USED TO CLEANUP RELEASED
SEDIMENTS. (SCHEDULE A.9.B.II)
26.THE ENTIRE SITE MUST BE TEMPORARILY STABILIZED USING VEGETATION OR A HEAVY MULCH LAYER,
TEMPORARY SEEDING, OR OTHER METHOD SHOULD ALL CONSTRUCTION ACTIVITIES CEASE FOR 30 DAYS
OR MORE. (SCHEDULE A.7.F.I)
27.PROVIDE TEMPORARY STABILIZATION FOR THAT PORTION OF THE SITE WHERE CONSTRUCTION
ACTIVITIES CEASE FOR 14 DAYS OR MORE WITH A COVERING OF BLOWN STRAW AND A TACKIFIER,
LOOSE STRAW, OR AN ADEQUATE COVERING OF COMPOST MULCH UNTIL WORK RESUMES ON THAT
PORTION OF THE SITE. (SCHEDULE A.7.F.II)
28.PROVIDE PERMANENT EROSION CONTROL MEASURES ON ALL EXPOSED AREAS. DO NOT REMOVE
TEMPORARY SEDIMENT CONTROL PRACTICES UNTIL PERMANENT VEGETATION OR OTHER COVER OF
EXPOSED AREAS IS ESTABLISHED. HOWEVER, DO REMOVE ALL TEMPORARY EROSION CONTROL
MEASURES AS EXPOSED AREAS BECOME STABILIZED, UNLESS DOING SO CONFLICTS WITH LOCAL
REQUIREMENTS. PROPERLY DISPOSE OF CONSTRUCTION MATERIALS AND WASTE, INCLUDING SEDIMENT
RETAINED BY TEMPORARY BMPS. (SCHEDULE A.7.B.III(2) AND A.8.C.III)
STANDARD EROSION AND SEDIMENT CONTROL
PLAN (ESCP) DRAWING NOTES
1. ALL PUBLIC STORM SEWER CONSTRUCTION AND ALL MATERIALS SHALL CONFORM CWS DESIGN
AND CONSTRUCTION STANDARDS - R&O 07-20.
2. PUBLIC STORM SEWER PIPE SHALL BE THE SIZE AND MATERIALS SHOWN ON THE PLANS.
3.INSTALLATION OF THE STORM SEWER SYSTEM SHALL BE IN ACCORDANCE WITH STANDARD
PRACTICES. ALL TRENCH BACKFILL IN PUBLIC RIGHT-OF-WAY SHALL BE 3/4"-0 COMPACTED
CRUSHED ROCK, (CLASS "B").
4.ALL SERVICE LATERALS TO BE CONSTRUCTED AT A MINIMUM SLOPE OF 1/4" (2%) PER LINEAR
FOOT UNLESS OTHERWISE SHOWN ON THE PLANS. LATERALS SHALL BE 4" DIAMETER. SIDE STORM
SEWER PIPE TO BE WHITE IN COLOR AND CONFORM TO CWS STANDARD DWG NO. 170.
5.SERVICE LATERALS SHALL EXTEND A MINIMUM OF 10 FEET FROM THE MAIN AND TWO FEET PAST
THE P.U.E. INTO THE LOT. THE END OF EACH LATERAL SHALL BE MARKED WITH A 2"x4" PAINTED
WHITE, EXTENDING FROM THE INVERT TO A MINIMUM OF THREE FEET ABOVE THE GROUND
SURFACE, WITH THE DEPTH FROM THE TOP OF THE 2"x4" TO THE INVERT WRITTEN THEREON.
6.ALL SANITARY & STORM SEWER LINES MUST BE THOROUGHLY CLEANED PRIOR TO MANDRELLING
OF PVC PIPE AND TELEVISING THE SYSTEM FOR ACCEPTANCE.
7.COMPACTION SHALL BE 95% T-99 FOR TRENCH BACKFILL IN STREET AND PARKING AREA.
CONTRACTOR TO DETERMINE TYPE OF EQUIPMENT AND METHOD USED TO ACHIEVE REQUIRED
COMPACTION.
8.PRIVATELY MAINTAINED STORM SEWER SYSTEMS SHALL BE CONSTRUCTED TO THE STANDARDS
AND SPECIFICATIONS OF THE 1994 EDITION OF THE U.P.C. AS AMENDED BY THE STATE OF
OREGON, TITLED THE 1996 OREGON PLUMBING SPECIALTY CODE 918-701-0040(1)]
STORM SEWERS
1.ALL PUBLIC SANITARY SEWER CONSTRUCTION AND ALL MATERIALS SHALL CONFORM WITH THE
APPLICABLE SECTIONS OF THE SPECIFICATIONS OF THE CWS OF WASHINGTON COUNTY, OREGON.
DESIGN AND CONSTRUCTION STANDARDS - R&O 07-20. ALL BACKFILL IN RIGHT-OF-WAY SHALL
COMPLY WITH CWS R&O 07-20.
2.MAIN LINE PIPE SHALL BE 8" PVC AND SERVICE LATERALS SHALL BE 4" PVC CONFORMING TO ASTM
D-3034. SIDE SANITARY SEWER PIPE TO BE GREEN IN COLOR UNLESS OTHERWISE SHOWN.
3.SERVICE LATERALS SHALL EXTEND A MINIMUM OF 10 FEET FROM THE MAIN AND TWO FEET
PASSED THE P.U.E. INTO THE LOT. THE END OF EACH LATERAL SHALL BE MARKED WITH A 2"x4"
PAINTED GREEN, EXTENDING FROM THE INVERT TO A MINIMUM OF THREE FEET ABOVE THE
GROUND SURFACE, WITH THE DEPTH FROM THE TOP OF THE 2"x4" TO THE INVERT WRITTEN
THEREON.
4.SERVICE LATERALS SHALL BE CONSTRUCTED AT A MINIMUM GRADE OF 2% WITH A MAXIMUM
GRADE OF 100% (45°) AND CONFORM TO CWS STANDARD DWG NO. 170.
5.ALL MAIN SEWERS SHALL BE BALLED, FLUSHED, THOROUGHLY CLEANED, MANDRELLED, AND
AIR-TESTED AFTER THE BACKFILL IS PLACED AND COMPACTED. A V.H.S. T.V. VIDEO TAPE AND
REPORT AND AIR-TEST RESULTS SHALL BE PROVIDED TO CITY OF HILLSBORO. MANHOLES SHALL
BE HYDROSTATIC OR VACUUM TESTED.
6.TRENCH BACKFILL IN STREET AREAS, PUBLIC RIGHT-OF-WAY, AND PRIVATE STREET TRACTS
SHALL BE WITH 3/4"-0" ROCK, COMPACTED TO 95% T-99.
7.PRIVATELY MAINTAINED SANITARY SEWER SYSTEMS SHALL BE CONSTRUCTED TO THE STANDARDS
AND SPECIFICATIONS OF THE 1994 EDITION OF THE U.P.C. AS AMENDED BY THE STATE OF
OREGON, TITLED THE 1996 OREGON PLUMBING SPECIALTY CODE [OAR 918-701-0040(1)].
SANITARY SEWERS
1. ALL PUBLIC STREETS SHALL BE CONSTRUCTED AS PER THE APPLICABLE SECTIONS OF THE CITY OF
TIGARD PUBLIC IMPROVEMENT DESIGN STANDARDS AND OREGON STANDARD SPECIFICATIONS FOR
CONSTRUCTION, 2008.
2. THE CONTRACTOR SHALL DO ALL THE WORK SHOWN ON THE DRAWINGS AND ALL INCIDENTAL WORK
CONSIDERED NECESSARY TO COMPLETE THE PROJECT IN AN ACCEPTABLE MANNER.
3. THE CONTRACTOR AND/OR SUBCONTRACTOR SHALL HAVE A MINIMUM OF ONE (1) SET OF APPROVED
CONSTRUCTION PLANS ON THE JOB SITE AT ALL TIMES DURING THE CONSTRUCTION PHASES.
4. ALL MATERIAL SUPPLIER(S) SHALL SUBMIT TO THE ENGINEER PROOF OF MATERIAL(S) TESTED IN
ACCORDANCE WITH THE ABOVE SPECIFICATIONS AND SHALL CERTIFY THAT ALL MATERIAL DELIVERED
TO THE JOB SITE MEET OR EXCEED WASHINGTON COUNTY SPECIFICATIONS PRIOR TO DELIVERY OF
MATERIAL TO THE SITE. ANY MATERIAL NOT CERTIFIED BY THE SUPPLIER SHALL BE REMOVED FROM
THE JOB SITE AT NO ADDITIONAL COST TO THE OWNER.
5. A PRE CONSTRUCTION MEETING MUST BE HELD PRIOR TO COMMENCING WORK, WITH YOUR CWS
INSPECTOR (INSPECTION HOT LINE # (503) 681-4444) & CITY OF TIGARD ENGINEERING &
CONSTRUCTION SERVICES INSPECTOR & WASHINGTON COUNTY INSPECTOR.
6. ABANDON WELLS AND DRAIN FIELDS ONSITE MUST COMPLY WITH OREGON DEPT. OF WATER
RESOURCES' REQUIREMENTS.
7. CONSTRUCTION RELATED TO CWS PERMITTING TO BE IN ACCORDANCE WITH R&O 07-20 (CWS).
8. FOLLOW CURRENT WASHINGTON COUNTY DESIGN AND CONSTRUCTION STANDARDS AS REQUIRED.
GENERAL
1. ALL TREES, BRUSH AND DEBRIS WITHIN LIMITS OF THE RIGHT-OF-WAY AND ON THE LOTS TO BE
FILLED SHALL BE REMOVED AND DISPOSED OF BY THE CONTRACTOR.
2. ALL AREAS OF CONSTRUCTION SHALL BE STRIPPED. STRIPPING SHALL CONSIST OF REMOVING
THE TOPSOIL HUMUS. STRIPPING MATERIALS SHALL BE DISPOSED OF ON THE SITE IN AREAS
DESIGNATED BY THE ENGINEER. PER GEOTECH'S RECOMMENDATIONS.
3. IF SPRINGS OR GROUND WATER IS ENCOUNTERED DURING CONSTRUCTION, THE CONTRACTOR
SHALL ADVISE THE SOILS AND CIVIL ENGINEER OF THE CONDITIONS FOUND AND COORDINATE HIS
ACTIVITIES IN A MANNER THAT WILL ALLOW THE ENGINEERS TIME TO REVIEW THE SITUATION
AND PREPARE A PLAN TO PROPERLY DISPOSE OF THE WATER ENCOUNTERED.
4. MATERIAL IN SOFT SPOTS WITHIN THE ROADWAY SHALL BE REMOVED TO THE DEPTH REQUIRED
TO PROVIDE A FIRM FOUNDATION AND SHALL BE REPLACED WITH 1 1/2"-0" CRUSHED ROCK. THE
ENTIRE SUBGRADE SHALL BE THOROUGHLY COMPACTED PER GEOTECHNICAL
RECOMMENDATIONS.
5. CONTRACTOR SHALL NOTIFY THE ENGINEER WHEN SUBGRADE IS COMPLETE AND 24 HOURS
PRIOR TO PLACEMENT OF ROCK BASE MATERIAL AND 24 HOURS PRIOR TO FINAL PAVING FOR AN
INSPECTION OF THE WORK. FAILURE TO DO SO WILL MAKE ANY SUBGRADE FAILURE OR DRAINAGE
PROBLEMS THE RESPONSIBILITY OF THE CONTRACTOR.
STREETS
1.THE GRADING PERMIT IS NOT TO BE CONSTRUED AS FINAL APPROVAL OF SITE GRADING,
EMBANKMENT OR STRUCTURAL FILL WORK; IT MERELY PROVIDES FOR INITIATION OF WORK AND
IS SUBJECT TO CHANGE PENDING CITY APPROVAL OF THE ENTIRE
CONSTRUCTION-DEVELOPMENT PLAN SET.
2.SPREADING OF MUD OR DEBRIS UPON ANY PUBLIC ROAD IS PROHIBITED. THE CITY MAY ORDER
STOPPAGE OF WORK TO EFFECT CORRECTIVE ACTION, AT ANY TIME.
3.EFFECTIVE EROSION CONTROL, DUST CONTROL, AND DRAINAGE CONTROL IS REQUIRED AT ALL
TIMES. THE CITY MAY ORDER STOPPAGE OF WORK TO EFFECT CORRECTIVE ACTION, AT ANY
TIME.
4.EMBANKMENTS OR STRUCTURAL FILLS FOR ROADWAY CONSTRUCTION OR FILLS TO BE
CONSTRUCTED ON BUILDABLE LOTS SHALL BE CONSTRUCTED FROM EXCAVATED MATERIALS
ACCEPTABLE TO THE SOILS ENGINEER AND SHALL BE BROUGHT TO GRADE IN LIFTS NOT TO
EXCEED 8" LOOSE MEASURE. EACH LIFT SHALL BE COMPACTED TO 90 PERCENT OF MAXIMUM
DENSITY AS OBTAINED BY AASTHO T_180 COMPACTION TEST.
5.STRUCTURAL FILLS SHALL COMPLY WITH CHAPTER 70APPENDIX CHAPTER 33 OF THE UNIFORM
BUILDING CODE. CONSTRUCTION ON EXISTING SLOPES GREATER THAN 5:1 SHALL BE ACHIEVED
BY BENCHING INTO THE EXISTING BANK A MINIMUM OF TEN FEET. IF THE BENCH EXPOSES SAND
SOIL AN UNDERDRAIN MUST BE PROVIDED. THE UNDERDRAIN, IF REQUIRED, WILL BE
CONSTRUCTED BY LYING INSTALLING NONWOVEN FILTER FABRIC, EQUIVALENT TO EXXON GTF
12500, ALONG THE BOTTOM OF THE STARTING BENCH, THEN PLACING A SIX INCH LAYER OF 1½"
-- 03/4" DRAIN ROCK, AND FINALLY COVERING THE DRAIN ROCK WITH THE NONWOVEN FILTER
FABRIC. SUCCESSIVE BENCHES WILL BE CONSTRUCTED WITH VERTICAL FILL BETWEEN TWO TO
FIVE FEET AND BE COMPACTED IN LAYERS NOT TO EXCEED 8 INCHES. EACH 8-INCH LAYER
SHALL BE COMPACTED TO A MINIMUM OF 90 PERCENT AASHTO T-180 DENSITY. THE FILL
SLOPES SHALL NOT EXCEED 2:1 AT FINISH GRADE. NO ROCK OR SIMILAR MATERIAL EXCEEDING
A 12-INCH DIAMETER SHALL BE ALLOWED IN THE STRUCTURAL FILL.
6.THE GEOTECHNICAL ENGINEER FOR STRUCTURAL FILL SHALL BE NOTIFIED 24 HOURS IN
ADVANCE, BY THE CONTRACTOR, OF STARTING BENCHWORK TO DETERMINE THE NEED FOR AN
UNDERDRAIN LAYER AND TO VERIFY EXISTING CONDITIONS.
7.THE CITY SHALL BE PROVIDED WITH A COPY OF THE GEOTECHNICAL ENGINEER'S
REPORT/RECOMMENDATION CHANGES.
8.IF SPRINGS OR GROUND WATER ARE ENCOUNTERED DURING CONSTRUCTION, THE CONTRACTOR
SHALL NOTIFY THE SOILS AND CIVIL ENGINEERS OF THE CONDITIONS FOUND AND COORDINATE
HIS ACTIVITIES IN A MANNER THAT WILL ALLOW THE ENGINEERS TIME TO REVIEW THE
SITUATION AND PREPARE A PLAN TO PROPERLY MITIGATE THE WATER ENCOUNTERED.
9.THE CONTRACTOR SHALL HAVE THE SOILS ENGINEER TAKE COMPACTION TESTS. A MINIMUM OF
THREE TESTS WILL BE REQUIRED FOR EACH 2 FEET OF FILL.
10.EXCAVATOR MUST COMPLY WITH ORS 757.541 THROUGH 757.571 (UTILITY PRE-NOTIFICATION,
ETC.).
GRADING NOTES
SW SCH
O
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A
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(
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S
R
O
A
D
(
C
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N
O
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3
1
5
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S
S S
S
S
S
PGE
644
PGE
504
PGE
444
PGE
444
PGE
644
C MC
I
24
"
X
3
6
"
X
3
6
"
P
G
E
6
1
2
PGE
612
MCI
17" X 30"
C
C C
C
PGE
444
EXISTING FORCE MAIN TO REMAIN. FORCE
MAIN RELOCATION COMPLETED DURING
PREVIOUS PHASE UNDER SEPARATE PERMIT
EXISTING 66" WATERLINE
EXISTING OVERHEAD LINES TO
BE UNDERGROUNDED BY PGE
EXISTING POWER POLE
TO BE REMOVED
EXISTING GRAVITY SANITARY
SEWER TO REMAIN
SAWCUT EXISTING
PAVEMENT
PHASE 3 LIMITS
OFFSITE IMPROVEMENTS TO BE
CONSTRUCTED WITH WASHINGTON COUNTY
ROY ROGERS MSTIP IMPROVEMENTS.
EXISTING SLOPE
EASEMENT
EXISTING SANITARY SEWER EASEMENT
TO BENEFIT CLEAN WATER SERVICE
PER DOC. NO. 2019-057638S
EXISTING WATERLINE EASEMENT TO
BENEFIT TUALATAN VALLEY WATER
DISTRICT AND THE CITY OF HILLSBORO
EX PUE
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ELEVATION DATUM: NGVD 29
GEODESIGN, INC
River Terrace
East No. 3
Phase 3
REVISIONS
DATE DESCRIPTION
REVIEWED BY:
TYPE:
PROJECT NO.:
AS-BUILTS
395-061
KCS
KEY MAP
SW
1
6
9
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E
SW SCHOLLS
F
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SW WOODGROVE ST
ALLEY M
SW
P
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SW
R
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SW
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B
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SW LEMO
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FOREST HOLLOW ST
Boundary : 2294.31 ACRES
Boundary : 2301.90 ACRES
RENEWS: JUNE 30, 2022
12564 SW Main Street Tigard, OR
97223
[T] 503-941-9484
05/18/20211ST SUBMITTAL:
1 INCH = 20 FEET
20 10 20
SCALE
0EXISTING CONDITIONS & DEMOLITION
SCALE: 1" = 20'
3
EXISTING
CONDITIONS/
DEMOLITION
PLAN
SW
R
O
Y
R
O
G
E
R
S
R
O
A
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(
C
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SW SCHOLLS
F
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R
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R
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(C.R. N
O
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3
1
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SW
L
A
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P
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SW FOREST HOLLOW ST
SW
A
U
B
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CURVE TABLE
CURVE #
C1
RADIUS
673.00'
LENGTH
153.68'
CHORD DIRECTION
S5° 39' 36"E
7.50'
PUE, TYP.
6.00'
PUE, TYP.6.00'
PUE, TYP.
PAVEMENT SAWCUT
AND OVERLAY
8.00'
PUE, TYP.
PHASE 3 LIMITS OFFSITE IMPROVEMENTS TO BE CONSTRUCTED
WITH WASHINGTON COUNTY ROY ROGERS
MSTIP IMPROVEMENTS.
8.00'
PUE, TYP.
282
280
281
TRACT "FF"
279
7
14
6
13
5
12
11
10
9
8
4
7
+
4
5
8
+
0
0
9+
0
0
10
+
0
0
C1
15.00'
EXISTING SLOPE
EASEMENT
EXISTING SLOPE
EASEMENT
EXISTING SANITARY SEWER
EASEMENT TO BENEFIT
CLEAN WATER SERVICES
EXISTING WATERLINE EASEMENT TO
BENEFIT TUALATAN VALLEY WATER
DISTRICT AND THE CITY OF HILLSBORO
3
2
TRACT HH
TRACT "GG"
1
PROPOSED MONUMENT WALL
1 INCH = 20 FEET
20 10 20
SCALE
0
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ELEVATION DATUM: NGVD 29
GEODESIGN, INC
River Terrace
East No. 3
Phase 3
REVISIONS
DATE DESCRIPTION
REVIEWED BY:
TYPE:
PROJECT NO.:
AS-BUILTS
395-061
KCS
RENEWS: JUNE 30, 2022
12564 SW Main Street Tigard, OR
97223
[T] 503-941-9484
05/18/20211ST SUBMITTAL:
4
SITE PLAN
EXISTING RIGHT-OF-WAY
PROPOSED RIGHT-OF-WAY
PROPOSED SIDEWALK
PROPOSED A.C. PAVING
LEGEND
PROPOSED SIDEWALK BY OTHERS
EXISTING SIDEWALK
PROPOSED CURB AND GUTTER
PROPOSED CENTERLINE
EXISTING CENTERLINE
PROPOSED HANDICAP RAMP
PROPOSED PUBLIC UTILITY EASEMENT
PROPOSED BUILDING SETBACK
PROPOSED PROPERTY LINE
EXISTING PROPERTY LINE
EXISTING BOUNDARY LINE
PROPOSED HANDICAP RAMP
PHASE BOUNDARY LINE
A
A
B
B
0+
0
0
1+
0
0
2+
0
0
2+
3
5
0+00
1+00
2+00
3+00
3+50
S
D
S
D
TRACT "FF"
TRACT HH
282
280
281
279
7
14
13
12
11
10
9
8
PHASE 3 LIMITS
SW
R
O
Y
R
O
G
E
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S
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D
(
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F
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Y
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(C.R. N
O
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3
1
1 0)
SW
L
A
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K
W
O
O
D
P
L
3
2
0
3
1
9
3
2
1
322
323
320
321
322
323
325
321
322
323
324
326
3
2
6
325321321
322
322 322 323 324
325
325
323
324
324
326
326
3
2
5
324
3
2
6
32
5
32
1
32
2
32
3
32
4
32
6
320
321
32
2
323
324
Slopes Table
Number
1
2
3
Minimum Slope
0.00%
10.00%
20.00%
Maximum Slope
10.00%
20.00%
100.00%
Area
21036.04
4178.94
2451.15
Color
1 INCH = 20 FEET
20 10 20
SCALE
0
EX 1-FT CONTOUR
EX 5-FT CONTOUR
FG 1-FT CONTOUR
FG 5-FT CONTOUR
LEGEND:
324
320
324
320
PROPOSED RETAINING WALL
GRADING LIMITS
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ELEVATION DATUM: NGVD 29
GEODESIGN, INC
River Terrace
East No. 3
Phase 3
REVISIONS
DATE DESCRIPTION
REVIEWED BY:
TYPE:
PROJECT NO.:
AS-BUILTS
395-061
KCS
RENEWS: JUNE 30, 2022
12564 SW Main Street Tigard, OR
97223
[T] 503-941-9484
05/18/20211ST SUBMITTAL:
5
GRADING
PLAN
CONSTRUCTION NOTES
BASED ON OUR REVIEW THE GRADING PLANS ARE IN
ACCORDANCE WITH OUR GEOTECHNICAL
RECOMMENDATIONS. ALL GRADING SHOULD CONDUCTED AS
DESCRIBED IN THE MARCH 4, 2016 GEOTECHNICAL REPORT
FOR THE SITE. LOCK+LOAD RETAINING WALLS SHOULD ALSO
BE DESIGNED AND CONSTRUCTED IN ACCORDANCE WITH THE
RETAINING WALL DESIGN MEMO FOR THE SITE.
BY:
GEODESIGN, INC
GRADING NOTES
1.FOR EROSION AND SEDIMENT CONTROL PLAN SEE
ESC PLANS.
2.REFER TO GEOTECHNICAL REPORT PREPARED BY
GEODESIGN INC. AND DATED JUNE 11, 2015 FOR
ADDITIONAL STRUCTURAL AND COMPACTION
REQUIREMENTS.
FG = FINISH GRADE SURFACE
TW = TOP OF WALL
SW = SIDEWALK
ABBREVIATION LEGEND:
FG
BOTTOM OF WALL, CAP STONE, BOTTOM OF SUBBASE,
AND SUB-DRAIN ELEVATION ARE NOT SPECIFIED BY THESE
PLANS. REFER TO WALL DETAILS AND SPECIFICATIONS.
SW
TW
FOR RETAINING WALL WITH PILASTERS ALONG
SCHOLLS FERRY ROAD (PILASTERS AND BRICK
NOT SHOWN FOR CLARITY):
FG = FINISH GRADE SURFACE
TW = TOP OF WALL
SW = SIDEWALK
ABBREVIATION LEGEND:
FG
BOTTOM OF WALL, CAP STONE, BOTTOM OF SUBBASE,
AND SUB-DRAIN ELEVATION ARE NOT SPECIFIED BY THESE
PLANS. REFER TO WALL DETAILS AND SPECIFICATIONS.
FG
TW
SW
310
320
330
340
310
320
330
340
0+00 1+00 2+00 2+50
LOT 281 LOT 280 LOT 279 TRACT FF SW SCHOLLS
FERRY RD
PHASE 3 LIMITS
310
320
330
340
310
320
330
340
0+00 1+00 2+00 3+00 3+50
TRACT FF LOT 279 SW LARKWOOD PL
(TRACT HH)LOT 14 SW ROY
ROGERS RD
2:1 MAX. SLOPE
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ELEVATION DATUM: NGVD 29
GEODESIGN, INC
River Terrace
East No. 3
Phase 3
REVISIONS
DATE DESCRIPTION
REVIEWED BY:
TYPE:
PROJECT NO.:
AS-BUILTS
395-061
KCS
RENEWS: JUNE 30, 2022
12564 SW Main Street Tigard, OR
97223
[T] 503-941-9484
05/18/20211ST SUBMITTAL:
6
LOT
SECTIONS
SECTION A
HORIZONTAL SCALE: 1" = 40', VERTICAL SCALE: 1" = 5'
SECTION B
HORIZONTAL SCALE: 1" = 40', VERTICAL SCALE: 1" = 5'
D
DX
S
D
X
S
D
X
S
D
X
S
D
X
S
D
X
S
D
X
S
D
X
S
S
X
S
S
X
S
S
X
S
S
X
S
S
X
S
S
X
S
S
X
W
PGE
644
PGE
444
PGE
644
MC
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"
X
3
6
"
X
3
6
"
X
W
X
W
X
W
X
W
X
W
X
W
X
W
X
W
X
W
X
W
X
W
X
W
X
W
X
W
X
W
X
W
X
W
X
W
X
W
P
G
E
6
1
2
PGE
612
MCI
17" X 30"
PGE
444
SW
R
O
Y
R
O
G
E
R
S
R
O
A
D
(
C
.R
.
N
O
.
3
15
0
)
SW SCHOLLS
F
E
R
R
Y
R
D
(C.R. N
O
.
3
1
1 0)
SW
A
U
B
E
R
G
I
N
E
T
E
R
SW FOREST HOLLOW ST
SW
L
A
R
K
W
O
O
D
P
L
X
W
X
W
X
W
X
W
X
W
X
W
X
W
S
EXISTING 66" TVWD WATERLINE
OFFSITE IMPROVEMENTS TO BE CONSTRUCTED WITH
WASHINGTON COUNTY ROY ROGERS MSTIP IMPROVEMENTS.
D
X
S
D
X
S
D
X
S
D
X
S
S
X
S
S
X
S
S
X
S
S
S
S
S
S
S
D
S
D
PHASE 3 LIMITS
EXISTING SLOPE
EASEMENT
EXISTING SANITARY SEWER
EASEMENT TO BENEFIT
CLEAN WATER SERVICES
EXISTING WATERLINE EASEMENT TO
BENEFIT TUALATAN VALLEY WATER
DISTRICT AND THE CITY OF HILLSBORO
S
S
XS
S
XSS
XSS
XSS
XSS
XSS
XSS
XSS
XSS
XSS
XSS
XSS
7
14
6
13
5
12
4
11
3
10
2
9
8
TRACT HH
TRACT FF
282
280
281
TRACT GG
279
EXISTING FORCE MAIN
PGE
444SSLN
SEE SHEET
PUBLIC
B
9
EX SDMH
#3B.1
EX SSMH
#B1.1
SSMH
#B2
SDLN
SEE SHEET
PUBLIC
3
8
EX SDMH
#3A
EX SSMH
#B1
EX SSMH
#A1
EX SSMH
#G1
EX SSMH
#C1
EX SDMH
#4A
SDMH
#3B
1 INCH = 40 FEET
40 20 40
SCALE
0
Construction Documents
N:
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T
:
7
Ju
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.
1
6
,
2
1
-
4:
1
0
P
M
je
f
f
ELEVATION DATUM: NGVD 29
GEODESIGN, INC
River Terrace
East No. 3
Phase 3
REVISIONS
DATE DESCRIPTION
REVIEWED BY:
TYPE:
PROJECT NO.:
AS-BUILTS
395-061
KCS
RENEWS: JUNE 30, 2022
12564 SW Main Street Tigard, OR
97223
[T] 503-941-9484
05/18/20211ST SUBMITTAL:
7
COMPOSITE
UTILITY
PLAN
PROPOSED THRUST BLOCK
EX THRUST BLOCK
PROPOSED AIR RELEASE VALVE
EX AIR RELEASE VALVE
PROPOSED BLOW-OFF
EX BLOW-OFF
PROPOSED WATER VALVE
EX WATER VALVE
PROPOSED WATER METER
EX WATER METER
PROPOSED FIRE HYDRANT
EX FIRE HYDRANT
PROPOSED STORM CLEANOUT
EX STORM CLEANOUT
EX CATCH BASIN
PROPOSED SANITARY CLEANOUT
EX SANITARY CLEANOUT
EX STORM MANHOLE
PROPOSED CATCH BASIN
PROPOSED STORM MANHOLE
EX SANITARY MANHOLE
PROPOSED SANITARY MANHOLE
EX BURIED POWER LINE
EX GAS LINE
PROPOSED WATER LINE
EX WATER LINE
EX STORM DRAIN
PROPOSED STORM DRAIN
EX SANITARY SEWER
PROPOSED SANITARY SEWER
EASEMENT LINES
EX OVERHEAD POWER LINE
EX TELEPHONE LINE
EX CABLE TV LINE
EX GAS VALVE
EX CABLE RISER
EX TELEPHONE RISERTR
C
D C
D
S C
S
XCOM
XE
XW
XG
LEGEND
XOH
XSD
SS
W
XSS
SD
PHASE BOUNDARY LINE
S
S
SD
SS
SD
SS SS SS SS SS S
S
S
S
S
S
S
S
S
D
P
G
E
6
4
4
P
G
E
4
4
4
P
G
E
4
4
4
MCI
24" X 36" X 36"
PGE
612
M
C
I
1
7
"
X
3
0
"
P
G
E
4
4
4
P
G
E
4
4
4
S
S
S
S
SSLN-B
SSLN-B
S S
SDMH
3B
EX SDMH
#3B.1
EX SDMH
#3A
GRIND AND OVERLAY 1.5"
TYPE C LEVEL II AC (ONE LIFT)
(TYP)
6.00'
PUE
6.00'
PUE
6
3
1A
2B
2A
7
7
14
6
13
5
12
4
11
3
10
2
9
1
8
279
TRACT HH
282
280281
TRACT GG
TRACT FF
8
1B
2+00
3+00
3+69
2+00
3+00
3+40
7+45
8+00
9+0010+00
S
W
S
C
H
O
L
L
S
F
E
R
R
Y
R
O
A
D
(
C
.
R
.
N
O
.
3
1
1
0
)
SW
F
O
R
E
S
T
H
O
L
L
O
W
S
T
SW AUBERGINE TER
SW LARKWOOD PL
PHASE 3 LIMITS
EXISTING SLOPE
EASEMENT
EXISTING SANITARY SEWER
EASEMENT TO BENEFIT
CLEAN WATER SERVICES
EXISTING WATERLINE EASEMENT TO
BENEFIT TUALATAN VALLEY WATER
DISTRICT AND THE CITY OF HILLSBORO
EXISTING 66" TVWD WATERLINE
SDLN-3
SDLN-3
S
S
280
290
300
310
320
330
340
350
280
290
300
310
320
330
340
350
6+757+008+009+009+50
ST
A
=
8
+
0
8
.
7
5
(
L
A
R
K
W
O
O
D
)
EL
E
V
=
3
2
3
.
8
9
BE
G
I
N
C
O
N
S
T
R
U
C
T
I
O
N
-3.76%
EXISTING SW LARKWOOD PLACE
BUILT WITH PHASE 1 PHASE 3 - PROPOSED PAVEMENT 64.12'
ST
A
=
7
+
5
1
.
2
6
(
L
A
R
K
W
O
O
D
)
EL
E
V
=
3
2
6
.
0
6
EN
D
C
O
N
S
T
R
U
C
T
I
O
N
EXISTING GROUND @
STREET CENTERLINE
FINISH GRADE @
STREET CENTERLINE
EX SANITARY SEWER
EX STORM SEWER
PR 6" DI WATER
EX 8" DI WATER
61.39 LF 12"
@ S=0.0361
37.46 LF 12" (PVC)
@ S=0.0103
CLASS 'B' GRANULAR BACKFILL & BEDDING
SD
M
H
3
B
ST
A
=
7
+
9
2
.
0
2
,
3
.
9
1
'
L
(L
A
R
K
W
O
O
D
)
4"
I
E
I
N
=
3
1
8
.
5
0
(
W
)
12
"
I
E
O
U
T
=
3
1
8
.
0
0
(
S
)
ST
A
=
3
+
4
0
.
8
1
(
S
D
L
N
-
3
)
RI
M
=
3
2
4
.
4
3
EX
S
D
M
H
3
B
.
1
ST
A
=
8
+
2
9
.
5
9
,
1
.
8
5
L
'
(L
A
R
K
W
O
O
D
)
ST
A
:
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+
0
3
.
3
5
(
S
D
L
N
-
3
)
RI
M
=
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2
3
.
0
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12
"
I
E
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U
T
=
3
1
7
.
4
1
(
S
)
7+
9
2
.
3
2
,
0
.
3
0
'
L
2.50
TRAVEL
16'
SWTRAVEL
16' 5'
54' R.O.W.
32' PAVEMENT
LC
RW
PRIVATE LOCAL STREET - PARKING ON BOTH SIDES
PUE
6'
C1
PLANT.
5'
2.50
RW
PUE
6'
PLANT.
5'
SW
5'
2
DTL1
PAVEMENT
SECTION
5:1 MAX
.5:1 MAX.
0.5'0.5'
N.T.S.
CURB
0.5'
CURB
0.5' Construction Documents
N:
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1
P
M
je
f
f
ELEVATION DATUM: NGVD 29
GEODESIGN, INC
River Terrace
East No. 3
Phase 3
REVISIONS
DATE DESCRIPTION
REVIEWED BY:
TYPE:
PROJECT NO.:
AS-BUILTS
395-061
KCS
KEY MAP
SW
1
6
9
T
H
A
V
E
SW SCHOLLS
F
E
R
R
Y
R
D
(C.R. N
O
.
3
1
1 0)
SW WOODGROVE ST
ALLEY M
SW
P
E
A
C
H
B
L
O
S
S
O
M
A
V
E
SW
R
O
Y
R
O
G
E
R
S
R
O
A
D
(
C
.R
.
N
O
.
3
15
0
)
AU
B
G
E
R
G
I
N
E
T
E
R
SW
L
A
R
K
W
O
O
D
P
L
SW FRIENDLY LN
SW
M
E
A
D
B
R
O
O
K
L
N
SW LEM
O
N
G
R
A
S
S
L
N
FOREST HOLLOW ST
Boundary : 2294.31 ACRES
Boundary : 2301.90 ACRES
RENEWS: JUNE 30, 2022
12564 SW Main Street Tigard, OR
97223
[T] 503-941-9484
05/18/20211ST SUBMITTAL:
1 INCH = 20 FEET
20 10 20
SCALE
0 8
SW LARKWOOD PL
STREET & STORM
PLAN & PROFILE
SW LARKWOOD PL - STREET & STORM PROFILE
HORIZ SCALE: 1" = 20', VERT SCALE: 1" = 10'
SW LARKWOOD PL - STREET & STORM PLAN
SCALE: 1" = 20'
LEGEND:
SIDEWALK BUILT BY DEVELOPMENT
SIDEWALK BUILT BY HOME BUILDER
INSTALL STORM MANHOLE PER CWS DWG NO. 010,
SHEET DTL2.
CONNECT TO EXISTING MANHOLE. CORE DRILL
CONNECTION AND SEAL PER CWS DWG NO. 020, SHEET
DTL2.
INSTALL 4" PVC STORM SEWER LATERAL PER CWS DWG
NO. 520, SHEET DTL2. SEE TABLE, THIS SHEET, FOR
LATERAL INFORMATION.
INSTALL 6" PVC STORM SEWER LATERAL PER CWS DWG
NO. 520, SHEET DTL2. SEE TABLE, THIS SHEET, FOR
LATERAL INFORMATION.
STORM NOTES:
1A
STORM LATERAL TABLE
LOT#STATION LENG
TH SLOPE I.E.MAT.
12-14 3+35.26 SDLN-3 31.60 2.45%318.95 D3034
279 3+38.26 SDLN-3 38.83 2.45%319.43 D3034
GENERAL NOTES:
1.CONSTRUCT SW LARKWOOD PL PER TYPICAL STREET
SECTION C1, THIS SHEET.
2.ITALIC STATION LABELS INDICATE PIPE STATIONING.
3.ALL PVC TO BE ASTM D-3034 UNLESS OTHERWISE
NOTED.
STREET NOTES:
INSTALL MONUMENT BOX TYPE PER DETAIL 170,
SHEET DTL1.
CONSTRUCT RESIDENTIAL DRIVEWAY WITH 3-FOOT
WINGS PER DETAIL 141, SHEET DTL1. SEE TABLE,
THIS SHEET, FOR LOCATION AND WIDTH.
1.0' MIN. SAWCUT INSIDE EXISTING ASPHALT
CONCRETE PAVEMENT AND REMOVE EXISTING
ASPHALT.
SAWCUT AT UTILITY TRENCH.
INSTALL (3) OM4-1 AS END-OF-ROADWAY MARKERS,
EVENLY SPACED, ON POSTS.
2
3
PRIVATE DRIVEWAY STATIONS
LOT#DELTA STATION WIDTH
12 7+95.13, 16.00' LT 12.00
13 7+79.50, 16.00' LT 8.00
14 7+62.79, 16.00' LT 12.00
279 7+95.66, 16.00' RT 16.00
1B
2A
6
2B
7
SIGN
3 REQUIRED
TYPE OM4-1
8
8
30" X 30"
MATERIAL:
SIGN: RUST FREE ALUMINUM, LAMINATED,
UV PROTECTED, WEATHER RESISTANT
REFLECTORS: ACRYLIC PLASTIC
COLOR:
REFLECTORS: RED (RETROREFLECTIVE)
BACKGROUND: RED
BORDER: RED (RETROREFLECTIVE)
3+40.8 34.8 1.96%319.2
35.2 2.16%
S
W
S
C
H
O
L
L
S
F
E
R
R
Y
R
O
A
D
(
C
.
R
.
N
O
.
3
1
1
0
)
S
S
S
S
SDLN-3
P
G
E
4
4
4
S
S
SD
SS
SD
SS SS SS SS SS S
S
S
S
S
S
S
S
S
D
P
G
E
6
4
4
P
G
E
4
4
4
P
G
E
4
4
4
MCI
24" X 36" X 36"
PGE
612
M
C
I
1
7
"
X
3
0
"
P
G
E
4
4
4
SSLN-B
SSLN-B
2+00
3+00
3+40
7+45
8+00
9+0010+00
2+00
3+00
3+69
S S
EX SSMH
#B1.1
EX SSMH
#B1
SSMH
B2
SW
F
O
R
E
S
T
H
O
L
L
O
W
S
T
SW AUBERGINE TER
SW LARKWOOD PL
7
14
6
13
5
12
4
11
3
10
2
9
1
8
282
280281
279
TRACT HH
(TYP)
(TYP)
PHASE LINE
LIMIT OF PROPOSED
IMPROVEMENTS
1A
1C
2
1B
1B
2
9 16
12
6.00'
PUE
6.00'
PUE
PHASE 3 LIMITS
EXISTING SLOPE
EASEMENT
EXISTING SANITARY SEWER
EASEMENT TO BENEFIT
CLEAN WATER SERVICES
EXISTING WATERLINE EASEMENT TO
BENEFIT TUALATAN VALLEY WATER
DISTRICT AND THE CITY OF HILLSBORO
EXISTING 66" TVWD WATERLINE
S
S
17
280
290
300
310
320
330
340
350
280
290
300
310
320
330
340
350
6+757+008+009+009+50
ST
A
=
8
+
0
8
.
7
5
(
L
A
R
K
W
O
O
D
)
EL
E
V
=
3
2
3
.
8
9
BE
G
I
N
C
O
N
S
T
R
U
C
T
I
O
N
EXISTING PHASE 1 PROPOSED PHASE 3
ST
A
=
7
+
5
1
.
2
6
(
L
A
R
K
W
O
O
D
)
EL
E
V
=
3
2
6
.
0
6
EN
D
C
O
N
S
T
R
U
C
T
I
O
N
EXISTING GROUND @
STREET CENTERLINE
FINISH GRADE @
STREET CENTERLINE
EX SANITARY SEWER
EX STORM SEWER
6" DI WATER
EX 8" DI WATER
61.39 LF 12"
@ S=0.0361
CLASS 'B' GRANULAR BACKFILL & BEDDING
78.83 LF 8"
@ S=0.0351
57.88 LF 8" (PVC)
@ S=0.0317
3.00' MIN.
COVER
EX
S
S
M
H
B
1
.
1
ST
A
:
8
+
1
3
.
9
1
,
9
.
4
8
R
'
(L
A
R
K
W
O
O
D
)
ST
A
:
3
+
1
1
.
1
6
(
S
S
L
N
-
B
)
RI
M
=
3
2
3
.
4
6
4"
I
E
I
N
=
3
1
6
.
8
0
(
E
)
8"
I
E
O
U
T
=
3
1
5
.
9
7
(
S
)
SS
M
H
B
2
ST
A
=
7
+
5
5
.
5
1
,
5
.
3
6
'
R
(L
A
R
K
W
O
O
D
)
8"
I
E
O
U
T
=
3
1
8
.
0
0
(
S
)
ST
A
=
3
+
6
9
.
0
4
(
S
S
L
N
-
B
)
RI
M
=
3
2
5
.
7
6
Construction Documents
N:
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6
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1
-
4:
1
2
P
M
je
f
f
ELEVATION DATUM: NGVD 29
GEODESIGN, INC
River Terrace
East No. 3
Phase 3
REVISIONS
DATE DESCRIPTION
REVIEWED BY:
TYPE:
PROJECT NO.:
AS-BUILTS
395-061
KCS
KEY MAP
SW
1
6
9
T
H
A
V
E
SW SCHOLLS
F
E
R
R
Y
R
D
(C.R. N
O
.
3
1
1 0)
SW WOODGROVE ST
ALLEY M
SW
P
E
A
C
H
B
L
O
S
S
O
M
A
V
E
SW
R
O
Y
R
O
G
E
R
S
R
O
A
D
(
C
.R
.
N
O
.
3
15
0
)
AU
B
G
E
R
G
I
N
E
T
E
R
SW
L
A
R
K
W
O
O
D
P
L
SW FRIENDLY LN
SW
M
E
A
D
B
R
O
O
K
L
N
SW LEM
O
N
G
R
A
S
S
L
N
FOREST HOLLOW ST
Boundary : 2294.31 ACRES
Boundary : 2301.90 ACRES
RENEWS: JUNE 30, 2022
12564 SW Main Street Tigard, OR
97223
[T] 503-941-9484
05/18/20211ST SUBMITTAL:
1 INCH = 20 FEET
20 10 20
SCALE
0 9
SW LARKWOOD PL
SANITARY & WATER
PLAN & PROFILE
SW LARKWOOD PL - SANITARY & WATER PROFILE
HORIZ SCALE: 1" = 20', VERT SCALE: 1" = 10'
SW LARKWOOD PL - SANITARY & WATER PLAN
SCALE: 1" = 20'
1A INSTALL SANITARY MANHOLE PER CWS DWG
NO. 010, SEE SHEET DTL2.
CONNECT TO EXISTING MANHOLE. CORE
DRILL CONNECTION AND SEAL PER CWS DWG
NO. 020, SHEET DTL2.
INSTALL 4" PVC D-3034 SANITARY SEWER
LATERAL PER CWS DWG NO. 520, SEE SHEET
DTL2, AND LATERAL TABLE, THIS SHEET.
SANITARY NOTES:
SANITARY LATERAL TABLE
LOT#STATION LENGTH SLOPE I.E.
12 3+39.17 SSLN-B 44.19 2.00%324.58
13 3+50.56 SSLN-B 43.55 2.00%324.99
14 3+65.97 SSLN-B 42.42 2.00%325.55
279 3+40.42 SSLN-B 25.95 2.00%324.76
GENERAL NOTES:
1.ALL PVC TO BE ASTM D-3034 UNLESS
OTHERWISE NOTED.
2.ITALIC STATION LABELS INDICATE PIPE
STATIONING.
1B
2
WATER NOTES:
INSTALL 1" WATER SERVICE WITH 3/4" WATER
METER PER DETAIL 520, SEE SHEET DTL3.
INSTALL 1" WATER SERVICE WITH 1" WATER
METER IN DRIVEWAY IN 24"x36"x12" POLYMER
CONCRETE METER BOX PER CITY SPECIFICATIONS
AND DETAIL 520, SEE SHEET DTL3.
INSTALL FIRE HYDRANT ASSEMBLY PER DETAIL
542, SEE SHEET DTL3.
STA: 7+62.91, 18.25' RT. (LARKWOOD)
INSTALL 6" X 6" MJ TEE
STA: 7+63.43, 10.47' LT. (LARKWOOD)
REMOVE EXISTING BLOW OFF AND CONNECT
TO EXISTING 8" WATERLINE W/ 6" REDUCER.
CONTRACTOR TO VERIFY DEPTH AND LOCATION
OF EXISTING WATER MAIN PRIOR TO
CONNECTION. REPORT CONFLICTS TO
ENGINEER. COORDINATE WITH CITY OF
TIGARD WATER.
STA: 8+08.36, 9.65' LT. (LARKWOOD)
INSTALL 6" CAP.
INSTALL 1" COMBINATION AIR AND VACUUM
VALVE PER DETAIL 590, SEE SHEET DTL3.
1B
1C
12
2
16
9
42.0 3.97%318.9
44.1 2.95%318.9
44.4 2.95%319.0
27.2 318.0
17
Construction Documents
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ELEVATION DATUM: NGVD 29
GEODESIGN, INC
River Terrace
East No. 3
Phase 3
REVISIONS
DATE DESCRIPTION
REVIEWED BY:
TYPE:
PROJECT NO.:
AS-BUILTS
395-061
KCS
RENEWS: JUNE 30, 2022
12564 SW Main Street Tigard, OR
97223
[T] 503-941-9484
05/18/20211ST SUBMITTAL:
DTL1
STREET
DETAILS
PAVEMENT SECTION
NOT TO SCALE
1
COMPACTED SUBGRADE SOILS
95% OF MODIFIED PROCTOR
10" BASE ROCK
2"- (3/4"-0) LEVELING COURSE
8"- (1 1/2"-0) AGGREGATE
BASE 95% OF MODIFIED
PROCTOR ASTM D1557
4" LEVEL 2, 1/2" DENSE
GRADED HMAC - TWO LIFTS
COMPACTED TO 92% OF MAMD
PAVEMENT SECTION
NOT TO SCALE
2
COMPACTED SUBGRADE SOILS
95% OF MODIFIED PROCTOR
10" BASE ROCK
2"- (3/4"-0) LEVELING COURSE
8"- (1 1/2"-0) AGGREGATE
BASE 95% OF MODIFIED
PROCTOR ASTM D1557
4" LEVEL 2, 1/2" DENSE
GRADED HMAC - TWO LIFTS
COMPACTED TO 92% OF MAMD
PRIVATE ALLEY
LOCAL STREET
Construction Documents
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ELEVATION DATUM: NGVD 29
GEODESIGN, INC
River Terrace
East No. 3
Phase 3
REVISIONS
DATE DESCRIPTION
REVIEWED BY:
TYPE:
PROJECT NO.:
AS-BUILTS
395-061
KCS
RENEWS: JUNE 30, 2022
12564 SW Main Street Tigard, OR
97223
[T] 503-941-9484
05/18/20211ST SUBMITTAL:
DTL2
SEWER
DETAILS
Construction Documents
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1
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P
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je
f
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ELEVATION DATUM: NGVD 29
GEODESIGN, INC
River Terrace
East No. 3
Phase 3
REVISIONS
DATE DESCRIPTION
REVIEWED BY:
TYPE:
PROJECT NO.:
AS-BUILTS
395-061
KCS
RENEWS: JUNE 30, 2022
12564 SW Main Street Tigard, OR
97223
[T] 503-941-9484
05/18/20211ST SUBMITTAL:
DTL3
WATER
DETAILS