08/18/2014 - Packet
Completeness Review
for Boards, Commissions
and Committee Records
CITY OF TIGARD
Planning Commission
Name of Board, Commission or Committee
Date of Meeting
I have verified these documents are a complete copy of the official record.
Doreen Laughlin
Print Name
Signature
Date
PLANNING COMMISSION AGENDA – AUGUST 18, 2014
City of Tigard | 13125 SW Hall Blvd., Tigard, OR 97223 | 503-639-4171 | www.tigard-or.gov | Page 1 of 1
City of Tigard
Planning Commission Agenda
MEETING DATE: August 18, 2014; 7:00 p.m.
MEETING LOCATION: City of Tigard – Town Hall
13125 SW Hall Blvd., Tigard, OR 97223
1. CALL TO ORDER 7:00 p.m.
2. ROLL CALL 7:00 p.m.
3. COMMUNICATIONS 7:02 p.m.
4. CONSIDER MINUTES 7:03 p.m.
5. BROWNFIELDS GRANT BRIEFING 7:05 p.m.
6. RIVER TERRACE UPDATE 7:20 p.m.
7. OTHER BUSINESS 8:20 p.m.
8. ADJOURNMENT 8:30 p.m.
City of Tigard
Memorandum
To: Tigard Planning Commission
From: Susan P Shanks, Senior Planner
Re: River Terrace Community Plan Infrastructure Briefing
Date: August 18, 2014
This memo provides an update on the infrastructure planning tasks for River Terrace. The
purpose of this memo, and your briefing on August 18, is to:
• Give you a clear picture of how each element of the River Terrace project (including
the infrastructure master plans) will be adopted and what the Planning Commission’s
role will be in that process;
• Update you on our progress towards completing the infrastructure master planning
tasks for River Terrace;
• Briefly describe the content of each infrastructure master plan: water, sewer,
stormwater, parks, and transportation.
River Terrace Community Plan Adoption
The River Terrace community planning process has resulted in the creation of a number of
documents that fall into one of three categories: Infrastructure Master Plans, Community Plan
Documents, and Implementation Projects. Some of these documents are being adopted in
advance of the River Terrace Community Plan (RTCP). Many are being adopted with the
RTCP, but a few implementation projects have their own project timelines and will be adopted
around or after RTCP adoption.
See Attachment 1 for a list of all documents and their target adoption dates. Attachment 1 also
clearly outlines which documents will come to the Planning Commission for review. Attachment
2 summarizes the adoption process timeline, including upcoming meeting dates.
Five distinct infrastructure master plans were created as part of the River Terrace community
planning project. While the Planning Commission will only have a direct role in adopting one of
these master plans, it is important for Commissioners to have a basic understanding of each
master plan in preparation for reviewing the River Terrace Community Plan (RTCP) and other
RTCP Project Update Page 2 of 3
related documents. This is because each master plan is based upon assumptions about number
of new homes and residents that are derived from the proposed zoning for the area. So while
the Commission may not be reviewing the specifics of any of the plans—with the exception of
the Transportation System Plan Addendum—the Commission will be reviewing the proposed
zoning that was used in the development of each plan.
All five master plans are independent of the River Terrace Community Plan (RTCP) but
collectively serve as its foundation. All of these plans, with the exception of stormwater, append
existing citywide master plans. Since Tigard does not have a citywide stormwater master plan,
the River Terrace Stormwater Master Plan will be a standalone document. Once adopted, the
plans will become a part of Tigard’s infrastructure system and will be eligible for inclusion in the
city’s Capital Improvement Plan (CIP).
Infrastructure Master Plan Progress
Since the Planning Commission’s last project update in October 2013, significant progress
has been made. The current status of each master plan is detailed below. The master plans
were developed with input and assistance from a diverse set of stakeholders and subject area
experts. This includes input and involvement from the project’s Stakeholder Working Group
(SWG), Technical Advisory Committee (TAC), community members, Tigard Parks and
Recreation Advisory Board, Tigard Transportation Advisory Committee, and Community
Planning Organizations, etc.
River Terrace Infrastructure Master Plan Status
Master Pan Community
Meeting(s)
SWG/TAC
Recommendation
Public Comment
Period
Council
Briefing Adoption
Water
Sewer
Stormwater Target: Sep
2014
Parks Target: Dec
2014
Transportation Target: Dec
2014
Infrastructure Master Plan Overview
Attachment 3 briefly summarizes each of the five master plans. Staff will provide additional
details and maps at your meeting on August 18. The full text of each plan can be viewed
using the links below.
RTCP Project Update Page 3 of 3
• ADOPTED Water System Master Plan
http://riverterracetigard.com/2014/07/02/final-adopted-river-terrace-water-system-
master-plan-addendum-june-2014/
• ADOPTED Sanitary Sewer Master Plan
http://riverterracetigard.com/2014/07/02/final-adopted-river-terrace-sewer-master-
plan-addendum-june-2014/
• FINAL DRAFT Stormwater Master Plan 1
http://riverterracetigard.com/2014/07/08/final-draft-of-the-river-terrace-area-
stormwater-master-plan-available-for-public-comment-july-2014/
• FINAL DRAFT Transportation System Plan1
http://riverterracetigard.com/2014/06/02/updated-transportation-system-master-
plan-addendum/
• FINAL DRAFT Park System Master Plan Addendum
http://riverterracetigard.com/2014/06/02/updated-park-system-master-plan-
addendum-available-for-comment/
Additional Information
For more project information, the project website is a great way to learn about how the
project has evolved and what’s currently happening: http://riverterracetigard.com/. You
may also want to sign up for the project listserv to receive emails about project milestones
and meeting announcements: https://lists.capalon.com/lists/listinfo/river-terrace .
ATTACHMENTS
Attachment 1: Overview of River Terrace Planning Documents
Attachment 2: River Terrace Community Plan Adoption Process
Attachment 3: Overview of River Terrace Infrastructure Master Plans
1 This version of the plan does not yet reflect the minor revisions discussed during the City Council
briefing on this plan.
(This page intentionally left blank)
ATTACHMENT 1
RTCP Project Update – Attachment 1 Page 1 of 1
Overview of River Terrace Planning Documents
DOCUMENT ADOPTION STATUS ADOPTION
MECHANISM DECISION MAKER
I. RIVER TERRACE INFRASTRUCTURE MASTER PLANS
Water ADOPTED Resolution Council
Sewer ADOPTED Resolution Council
Stormwater Target: Aug 2014 Resolution Council
Parks1 Target: Dec 2014 Resolution Council
Transportation Target: Dec 2014 Ordinance (Planning Commission)
Council
II. RIVER TERRACE COMMUNITY PLAN DOCUMENTS
River Terrace
Community Plan
Target: Dec 2014
Effective Date: TBD Ordinance (Planning Commission)
Council
Comprehensive Plan
and Zoning Maps
Target: Dec 2014
Effective Date: TBD Ordinance (Planning Commission)
Council
Natural Resource Maps Target: Dec 2014
Effective Date: TBD Ordinance (Planning Commission)
Council
III. IMPLEMENTATION PROJECTS
River Terrace
Code Amendments Target: Dec 2014 Ordinance (Planning Commission)
Council
River Terrace
Infrastructure Funding
Strategy
Target: Dec 2014
Resolution Council
River Terrace
Public Improvement
Design Standards
Target: Dec 2014 Administrative
Staff Review City Engineer
Citywide Stormwater
Model and Standards Target: Dec 2014 Administrative
Staff Review City Engineer
Citywide Infrastructure
Financing Project2 Target: July 1, 2015 Resolution &
Ordinance Council
Notes:
1. The green highlighted rows identify those documents that will be combined into one River Terrace
Community Plan document package for City Council review in December.
2. The Infrastructure Financing Project will include a separate analysis and potentially a separate
adoption action for each infrastructure system, but any new fees or SDCs that result from this project
are planned to be in place by July 1, 2015.
(This page intentionally left blank)
River Terrace Community Plan
Adoption process
M Ay to August septeMber october starting noveMber
May–June
Water & Sewer
Public Comment Period
Council Briefing
Adoption
June–July
Parks & Transportation
Public Comment Period
Council Briefing
July–August
Stormwater
Public Comment Period
Council Briefing
Adoption
August
Planning Commission
Infrastructure Plans Briefing
8/18
Infrastructure Plan Review
Community Plan Development
Community Plan Review
September
Funding Strategy
Draft Proposal Available 9/9
City Council Workshop
9/23
September
Community Plan
Draft Plan Available 10/2
September
Community Development
Code Amendments
Draft Amendments
Available 10/2
October
Funding Strategy
Stakeholder Briefing 10/1
Stakeholder & Community
Discussion 10/15
Stakeholder
Recommendation 10/29
October
Community Plan
Comment Period 10/2–10/30
November
Community Plan,
Funding Strategy,
Parks & Transportation
Planning Commission Public
Hearing 11/17
City Council Public Hearing
12/16
Adoption Hearings
(This page intentionally left blank)
ATTACHMENT 3
RTCP Project Update – Attachment 2 Page 1 of 6
Figure 1: River Terrace Water Pressure Zones
Source: Water System Master Plan Addendum
Overview of River Terrace Infrastructure Master Plans
I. Water System Master Plan
In 2010, the City of Tigard updated its Water System Master Plan (WSMP), which addresses
water supply capacity needs and guides water system infrastructure improvements in the
Tigard Water Service Area. Since the adoption of the WSMP and update in 2010, the West
Bull Mountain Concept Plan (WBMCP) was completed and adopted by Washington County
and the city. The area now known as River Terrace (and formerly known as West Bull
Mountain) was also annexed to the city. The River Terrace Water System Master Plan
Addendum officially includes this new area in the Tigard Water System, and addresses how
water service will be provided to this area.
There are three water pressure zones in River
Terrace: 410, 550, and 713. A water pressure
zone is a geographic area that is determined
by elevation. Pressure is maintained by
gravity pulling water from storage facilities
which are located at high elevations in each
zone.
Two of the three pressure zones in the River
Terrace area can be easily and effectively
served by the extension of existing
distribution and transmission lines. In order
to serve the remaining pressure zone (River
Terrace Zone 550), the city will need to
provide more water storage in addition to
new transmission lines. The recommendation
is to construct a three million gallon storage
reservoir on the city-owned Cach property,
which was purchased for this purpose to meet existing storage deficiencies in the area.
II. Sanitary Sewer Master Plan
The city’s existing Sanitary Sewer Master Plan (SSMP) evaluates wastewater flows based on land
uses, establishes gravity sewer pipe sizes, and serves as a guide for all capital sewer projects
within the city. The 2010 SSMP update did not include River Terrace sewer needs in its analysis.
The River Terrace Sanitary Sewer Master Plan Addendum accomplishes this task.
RTCP Project Update – Attachment 2 Page 2 of 6
Source: Sanitary Sewer Master Plan Addendum
Figure 2: River Terrace Sewer Sub-basins Due to topography, the River Terrace area was
split into two sewer service sub-basins identified
as River Terrace North and River Terrace
South. A small area within each sub-basin will
be able to gravity flow to existing trunk lines.
However, the majority of the area will need to
utilize pump stations and force mains to gain
access to existing trunk lines.
Recommendations for the River Terrace North
sub-basin include an 8.6 mgd (million gallons
per day) pump station in the northwest corner,
7 mgd of which will serve South Cooper
Mountain.
Recommendations for the River Terrace South
sub-basin include revising the service area for
the existing South Bull Mountain Pump Station
to serve the southeastern portion of River
Terrace as well as the construction of a 2.5 mgd pump station in the Southwest corner.
III. Stormwater Master Plan
The city does not have a citywide stormwater master plan. Consequently, the River Terrace
Stormwater Master Plan will be a standalone document and not append an existing master
plan. Stormwater management facilities are needed to protect the quality of our
community’s water supply, the built environment from flood damage during large storm
events, and the health and function of downstream stream corridors for habitat and
recreation. The following stormwater management goals were utilized in the development
of the River Terrace Stormwater Master Plan.
• Restore/enhance vegetated corridors
• Protect water quality
• Preserve existing hydrology
• Promote safe and long-lasting stormwater facilities
• Balance the use of regional and on-site stormwater facilities
• Preserve existing mature vegetation
• Maximize use of multi-benefit facilities to create community amenities
• Promote partnerships with other public service providers and agencies
The recommended stormwater management strategies for River Terrace support these goals
RTCP Project Update – Attachment 2 Page 3 of 6
and have been incorporated into the master plan based upon the needs and characteristics of
each drainage basin in the area. These strategies make use of existing topography, natural
systems, and facility design to effectively and efficiently ensure that: (1) all stormwater runoff
from development is treated before it enters a stream, river, or wetland, and (2) the amount
of stormwater runoff anticipated from development is appropriately managed to prevent
stream erosion and property damage through either detention or conveyance. The former
objective is about protecting water quality, while the latter objective is about managing water
quantity.
The strategies recommended in this plan are based upon Clean Water Services (CWS)
Design and Construction Standards and the CWS Low Impact Development Approaches
(LIDA) Handbook. In addition, this plan reflects the project team’s recommendation to
adopt new design standards for the River Terrace study area in collaboration with CWS on
or before the RTCP adoption. The need for these new standards is based upon the
following:
• The city’s recent experiences dealing with channel stability problems elsewhere on
Bull Mountain.
• The presence of similar drainage channel conditions in River Terrace.
• The city’s decision to develop a new continuous simulation model for this area.
• Anticipated changes to CWS’s Design and Construction Standards to address
pending requirements under their National Pollutant Discharge Elimination System
(NPDES) permit.
• The community’s desire to preserve and protect existing natural resources in the
River Terrace and Bull Mountain area.
The River Terrace Stormwater Master Plan divides River Terrace into three strategy areas
based on existing conditions and anticipated development in each area. Within each strategy
area a specific approach to water quality and quantity management is recommended.
There are two water quality strategies recommended in River Terrace: (1) Low Impact
Development Approaches (LIDA) at a variety of scales, and (2) regional water quality
facilities that offer community benefits in addition to stormwater management.
LIDA facilities can be applied at the scale of an individual lot, street, or subdivision.
Examples of these types of facilities include infiltration planters, vegetated swales, and eco-
roofs. Unlike LIDA facilities, the recommended regional facilities sometimes have a water
quantity function as well, as shown below for Strategy Area A.
RTCP Project Update – Attachment 2 Page 4 of 6
A stormwater water quantity management strategy is required everywhere in River Terrace to
mitigate for potential flooding and erosion impacts that would otherwise result from
increases in stormwater runoff volume, rate, and duration due to development in River
Terrace. There are two water quantity strategies recommended in River Terrace: (1) regional
detention facilities, and (2) high-flow conveyance improvements extending downstream to
the Tualatin River.
Recommended strategies by area are as follows:
Strategy Area A
• Regional Water Quality/Quantity Facilities
Strategy Area B
• Water Quality: LIDA
• Water Quantity: Regional Water Quantity Detention
Facilities
Strategy Area C
• Water Quality: LIDA
• Water Quantity: Regional Downstream Conveyance
Improvements
IV. Park System Master Plan
The City of Tigard updated its Park System Master Plan (PSMP) in 2009. The PSMP guides
park, recreation, and trail development throughout the city. The River Terrace PSMP
Addendum updates the PSMP to accommodate the park needs anticipated in River Terrace
and contribute to the city’s broader goal of completing the River Terrace Community Plan.
The 2009 PSMP established level of service (LOS) standards, expressed in terms of acres
of land per 1,000 persons in the City of Tigard, for each park type. With all park types
combined, the city’s LOS is 10 acres/1,000 residents. There are many challenges with
meeting this standard across the city, one of which is the availability of suitable land.
Relatively speaking, however, it will be easier to meet this standard in River Terrace, in
part because the area is mostly undeveloped.
The River Terrace PSMP Addendum utilizes the city’s existing LOS standards. In lieu of
identifying specific park locations, parks are conceptually located within service areas to
show where community and neighborhood parks would be needed to meet standards and
achieve the goal of having an equitable distribution of parks in the area. Of note is the
future River Terrace Trail, which is proposed to be integrated with the main North-South
Figure 3: River Terrace
Stormwater Strategy Areas
RTCP Project Update – Attachment 2 Page 5 of 6
Collector Street, also known as River Terrace Boulevard. This trail was planned, in part,
to complement the Westside Trail, as it provides a less steep travel option around Bull
Mountain.
The table below provides an overview of park standards, needs, and recommendations, by
park type for River Terrace.
Table 1. River Terrace Park Standards, Needs, and Recommendations
Park Type City Standard Park Need Recommendation
Community 3.0 acres/
1,000 residents 19.25 acres
19.25 acres minimum. Two parks, one in the north
and one in the south. Locations and exact sizes
TBD.
Neighborhood 1.5 acres/
1,000 residents 9.62 acres
9.62 acres minimum. Six parks, distributed evenly
with one for each of the six neighborhood areas.
Locations and exact sizes TBD.
Pocket No standard NA May be provided by development.
Linear 1.25 acre/
1,000 residents 8.02 acres 8.02 acres minimum, co-located with trails where
practicable. Locations and exact sizes TBD.
Trail 0.26 miles/
1,000 residents 1.67 miles
3 miles proposed. The River Terrace Trail is
proposed to run from Scholls Ferry Rd to 150th
Ave with connections to regional trails.
Open Space 4.25 acres/
1,000 residents 27.26 acres 65 acres already under natural resource protection,
largely along stream corridors and wetlands.
Core Standard 10 acres/
1,000 residents 64.2 acres 104.9 acres proposed. All park types, with the
exception of trails, contribute to the standard.
V. Transportation System Plan
In 2010, the City of Tigard updated its Transportation System Plan (TSP). The TSP links
expected growth with transportation needs and sets the policy framework for the city’s
transportation system.
The 2010 TSP serves as a long range guide for city transportation investments by
incorporating the vision of the community into an equitable and efficient transportation
system. It evaluates the current transportation system and outlines policies and projects
that are important for protecting and enhancing the quality of life in Tigard through the
next 20 years by balancing the needs of walking, bicycling, driving, transit, and freight. The
2010 TSP includes household and vehicle trip projections for the River Terrace area, which
means that the city will not be required to do additional analysis to meet the State’s
Transportation Planning Rule.
The River Terrace TSP Addendum identifies several multi-modal street and intersection
improvements in and around the River Terrace area. Key elements of the proposal include
RTCP Project Update – Attachment 2 Page 6 of 6
connections to existing streets in the adjacent Bull Mountain community to the east;
roundabouts at key intersections where practicable; signalized intersections where new or
existing streets connect to Roy Rogers Rd and Scholls Ferry Rd to accommodate cars,
bicyclists, and pedestrians; and a signature street dubbed the “River Terrace Boulevard”
that incorporates the River Terrace Trail.
Figure 4: River Terrace Boulevard Design Concept
Tigard Park System Master Plan Addendum
9
Figure 2: River Terrace Parks Master Plan, Community Parks
Tigard Park System Master Plan Addendum
10
Figure 3: River Terrace Parks Master Plan, Neighborhood Parks
Tigard Park System Master Plan Addendum
11
Figure 4: River Terrace Parks Master Plan, Trails
Tigard Park System Master Plan Addendum
10
Figure 3: River Terrace Parks Master Plan, Neighborhood Parks
Tigard Park System Master Plan Addendum
11
Figure 4: River Terrace Parks Master Plan, Trails
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CITY OF BEAVERTON
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PROPOSED RIGHT-OF-WAY
RIVER TERRACE NORTH
RIVER TERRACE SOUTH
URBAN RESERVE AREA
NATURAL RESOURCE CORRIDOR
TIGARD CITY LIMITS
10' CONTOURS
URBAN RESERVE 6C(SOUTH)
URBAN RESERVE 6C(MIDDLE)
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PROPOSED SEWER SERVICE
January 2014
CITY OF TIGARD
RIVER TERRACE COMMUNITY PLAN
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SOURCE:
CONTOURS - CLEAN WATER SERVICES.
AERIAL PHOTO - ESRI ARCGIS ONLINE (JULY 2010).
WATER SYSTEM - CITY OF TIGARD (DEC 2010).
ALL OTHER BASEMAPPING METRO/RLIS (AUG 2013).
S. BULL MOUNTAINPUMP STATION
URA 6C(MIDDLE)PROPOSEDPUMP STATION
FORCE MAIN TO RTS
URA 6C(SOUTH)PROPOSEDPUMP STATION
PROPOSED RTSPUMP STATION 1REMOVED UPONURA 6C (SOUTH)DEVELOPMENT
RTNPUMP STATION
EXTENDED GRAVITYLINE FROM RTS-1 PUMPSTATION
PLEASANT VIEWPUMP STATION
MEYERS FARMPUMP STATION
FIGURE 9
RIVER TERRACE NORTH AREATRIBUTARY TO SW SCHOLLS FERRY RD TO DRAIN TOBARROW RD TRUNK3ÚSCHOLLS COUNTRYESTATESPUMP STATION
T2T2
T3T3
T4T4
T5T5
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WQ3_2A
WQ4_4a
WQ4_4b
WQSMB
WQ2_7b
WQ3_2b
WQ5_6c
Basin
T2_7a
37.7ac
Basin
T3_2a
33.4ac
Basin
T2_5a
32.9ac
Basin
T2_5b
31.5ac
Basin
T5_6b
29.6ac
Basin
T4_4a
28.8ac
Basin
T2_6a
26ac
Basin
T5_6c
25.5ac
Basin
T2_7b
16.7ac
Basin
T2_6b
16.1ac
Basin
T4_4b
14.9ac
Basin
SMB
10.4ac
Basin
T2_5c
9ac
Basin
T3_2b
7.3ac
Basin
T5_6a
6.1ac
Basin
T8_4a
19.9ac
Basin
T8_3f
17.2ac
Basin
T7_3a
14.3ac
River Terrace Stormwater Management Plan
0 400
Feet
±
Data on this map is from Washington County and Metro's
RLIS database. This information was developed at multiple
scales and accuracies. No warranty is made with this map.
Figure 4A: Stormwater Concept Plan Diagram (Strategy Area A)
Legend
River Terrace Study Area
Future Street
Proposed Subbasins
Overland Flow Direction
Sensitive Areas
Significant Wetlands
Inventoried Wetlands
Natural Resource Buffers
Existing Drainageway
Stormwater Conveyance
Pipes#With Street LIDA#No Street LIDA
Swales/Ditches#With Street LIDA#No Street LIDA
Regional Stormwater Facility
Water Quality and Quantity
Water Quantity Only
10ft Contour Line
Printing Date: 7/7/2014
Document Path: L:\Project\16800\16851\GIS\WNR\Fig4-StormwaterConceptPlanDiagram.mxd
T3T3
T4T4
T5T5
SW
R
O
Y
R
O
G
E
R
S
R
D
SW BULL MOUNTAIN RD
SW
1
6
4
T
H
A
V
E
SW
1
6
1
S
T
A
V
E
SW SCHOLLS FERRY RD
T2_6
WQ2_5ac
T5_6b
WQ2_7a
WQ3_2A
WQ2_5b
WQ4_4a
WQ4_4b
WQSMB
WQ2_7b
WQ3_2b
WQ5_6c
Basin
T2_7a
37.7ac
Basin
T3_2a
33.4ac
Basin
T2_5a
32.9ac
Basin
T5_6b
29.6ac
Basin
T4_4a
28.8ac
Basin
T2_6a
26ac
Basin
T2_5b
31.5ac
Basin
T5_6c
25.5ac
Basin
T8_4b
38.2ac
Basin
T8_4a
19.9ac
Basin
T2_7b
16.7ac
Basin
T2_6b
16.1ac
Basin
T4_4b
14.9ac
Basin
SMB
10.4ac
Basin
T8_6
8.2ac
Basin
T3_2b
7.3ac
Basin
T2_5c
9ac
Basin
T5_6a
6.1ac
Basin
T8_3f
17.2ac
Basin
T9_3a
25.4acBasin
T7_3a
14.3ac
River Terrace Stormwater Management Plan
0 400
Feet
±
Data on this map is from Washington County and Metro's
RLIS database. This information was developed at multiple
scales and accuracies. No warranty is made with this map.
Figure 4B: Stormwater Concept Plan Diagram (Strategy Area B)
Legend
River Terrace Study Area
Future Street
Proposed Subbasins
Overland Flow Direction
Sensitive Areas
Significant Wetlands
Inventoried Wetlands
Natural Resource Buffers
Existing Drainageway
Stormwater Conveyance
Pipes#With Street LIDA#No Street LIDA
Swales/Ditches#With Street LIDA#No Street LIDA
Regional Stormwater Facility
Water Quality and Quantity
Water Quantity Only
10ft Contour Line
Printing Date: 7/7/2014
Document Path: L:\Project\16800\16851\GIS\WNR\Fig4-StormwaterConceptPlanDiagram.mxd
#
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#
#
#
#
#
###
#
#
#
#
#
#
##
#
##
#
#
#
T
7
T
7
T
8
T
8 T9T9
T
1
0
T
1
0
SW
1
6
4
T
H
A
V
E
SW
1
6
1
S
T
A
V
E
SW
1
5
0
T
H
A
V
E
SW BEEF BEND RD
SW
A
P
R
I
L
L
N
Approx. 3,800 feet of high flow pipe between
Beef Bend Rd and the Tualatin River
Approx. 2,500 feet of high flow bypass pipe
to be constructed with development
of this area.
T5_6b
WQ10_3a
FS8_4
FS9_3a
Basin
T8_4b
38.2ac
Basin
T5_6b
29.6ac
Basin
T9_3a
25.4ac
Basin
T8_4a
19.9ac
Basin
T9_3b
18.6ac
Basin
T8_3f
17.2ac
Basin
T7_3a
14.3ac
Basin
T4_4a
28.8ac
Basin
T9_4
13.3ac
Basin
T8_3g
11.9ac
Basin
T8_3b
11.5ac
Basin
T5_6c
25.5ac
Basin
T8_6
8.2ac
Basin
T5_6a
6.1ac
Basin
T4_4b
14.9ac
Basin
T8_3a
5.6ac Basin
T10_3b
4.5ac
Basin
T3_2a
33.4ac
River Terrace Stormwater Management Plan
0 1,000
Feet
±
Data on this map is from Washington County and Metro's
RLIS database. This information was developed at multiple
scales and accuracies. No warranty is made with this map.
Figure 4C: Stormwater Concept Plan Diagram (Strategy Area C)
Legend
River Terrace Study Area
Proposed Subbasins
Proposed Street
Overland Flow Direction
Sensitive Areas
Inventoried Wetlands
Natural Resource Buffers
Tualatin River
Stormwater Conveyance
Pipes#with Street LIDA#no Street LIDA
Swales/Ditches#with Street LIDA
#Flow Splitter Device
Regional Stormwater Facility
Water Quality and Quantity
Water Quantity Only
Existing Drainageway
10ft Contour Line
Printing Date: 7/3/2014
Document Path: L:\Project\16800\16851\GIS\WNR\Fig4C-StormwaterConceptPlanDiagram_StrategyC.mxd
T3T3
T4T4
T5T5
SW
R
O
Y
R
O
G
E
R
S
R
D
SW BULL MOUNTAIN RD
SW
1
6
4
T
H
A
V
E
SW
1
6
1
S
T
A
V
E
SW SCHOLLS FERRY RD
T2_6
WQ2_5ac
T5_6b
WQ2_7a
WQ3_2A
WQ2_5b
WQ4_4a
WQ4_4b
WQSMB
WQ2_7b
WQ3_2b
WQ5_6c
Basin
T2_7a
37.7ac
Basin
T3_2a
33.4ac
Basin
T2_5a
32.9ac
Basin
T5_6b
29.6ac
Basin
T4_4a
28.8ac
Basin
T2_6a
26ac
Basin
T2_5b
31.5ac
Basin
T5_6c
25.5ac
Basin
T8_4b
38.2ac
Basin
T8_4a
19.9ac
Basin
T2_7b
16.7ac
Basin
T2_6b
16.1ac
Basin
T4_4b
14.9ac
Basin
SMB
10.4ac
Basin
T8_6
8.2ac
Basin
T3_2b
7.3ac
Basin
T2_5c
9ac
Basin
T5_6a
6.1ac
Basin
T8_3f
17.2ac
Basin
T9_3a
25.4acBasin
T7_3a
14.3ac
River Terrace Stormwater Management Plan
0 400
Feet
±
Data on this map is from Washington County and Metro's
RLIS database. This information was developed at multiple
scales and accuracies. No warranty is made with this map.
Figure 4B: Stormwater Concept Plan Diagram (Strategy Area B)
Legend
River Terrace Study Area
Future Street
Proposed Subbasins
Overland Flow Direction
Sensitive Areas
Significant Wetlands
Inventoried Wetlands
Natural Resource Buffers
Existing Drainageway
Stormwater Conveyance
Pipes#With Street LIDA#No Street LIDA
Swales/Ditches#With Street LIDA#No Street LIDA
Regional Stormwater Facility
Water Quality and Quantity
Water Quantity Only
10ft Contour Line
Printing Date: 7/7/2014
Document Path: L:\Project\16800\16851\GIS\WNR\Fig4-StormwaterConceptPlanDiagram.mxd
#
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#
#
#
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#
#
#
#
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###
#
#
#
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#
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#
##
#
#
#
T
7
T
7
T
8
T
8 T9T9
T
1
0
T
1
0
SW
1
6
4
T
H
A
V
E
SW
1
6
1
S
T
A
V
E
SW
1
5
0
T
H
A
V
E
SW BEEF BEND RD
SW
A
P
R
I
L
L
N
Approx. 3,800 feet of high flow pipe between
Beef Bend Rd and the Tualatin River
Approx. 2,500 feet of high flow bypass pipe
to be constructed with development
of this area.
T5_6b
WQ10_3a
FS8_4
FS9_3a
Basin
T8_4b
38.2ac
Basin
T5_6b
29.6ac
Basin
T9_3a
25.4ac
Basin
T8_4a
19.9ac
Basin
T9_3b
18.6ac
Basin
T8_3f
17.2ac
Basin
T7_3a
14.3ac
Basin
T4_4a
28.8ac
Basin
T9_4
13.3ac
Basin
T8_3g
11.9ac
Basin
T8_3b
11.5ac
Basin
T5_6c
25.5ac
Basin
T8_6
8.2ac
Basin
T5_6a
6.1ac
Basin
T4_4b
14.9ac
Basin
T8_3a
5.6ac Basin
T10_3b
4.5ac
Basin
T3_2a
33.4ac
River Terrace Stormwater Management Plan
0 1,000
Feet
±
Data on this map is from Washington County and Metro's
RLIS database. This information was developed at multiple
scales and accuracies. No warranty is made with this map.
Figure 4C: Stormwater Concept Plan Diagram (Strategy Area C)
Legend
River Terrace Study Area
Proposed Subbasins
Proposed Street
Overland Flow Direction
Sensitive Areas
Inventoried Wetlands
Natural Resource Buffers
Tualatin River
Stormwater Conveyance
Pipes#with Street LIDA#no Street LIDA
Swales/Ditches#with Street LIDA
#Flow Splitter Device
Regional Stormwater Facility
Water Quality and Quantity
Water Quantity Only
Existing Drainageway
10ft Contour Line
Printing Date: 7/3/2014
Document Path: L:\Project\16800\16851\GIS\WNR\Fig4C-StormwaterConceptPlanDiagram_StrategyC.mxd
!
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k
k
k
k
k
k
k
k
k
k
!
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!
!
!
!
k
k
µ01,0002,000500Feet
Figure 7: Recommended Transportation Improvements
Arterial Street
Collector Street
Neighborhood Route
Local Street
Street Functional Classification
Ro
y
R
o
g
e
r
s
R
o
a
d
Beef Bend Road
15
0
t
h
A
v
e
n
u
e
Ros
h
a
k
R
o
a
d
Scholls Ferry Road
Bull Mountain Road
1
2 3
4
5
6
7
8 109
11
12
21
22
2313
14
15
16
17
18
19
20
Future Collector Street (Conceptual Alignment)Future Neighborhood Route (Conceptual Alignment)
River Terrace Community Plan Area
!Intersection Improvement
#Project ID (see Table 5 or 6)
Urban Growth Boundary
k Future Connection to Existingor Future Street
k Future Pedestrian and Bicycle Connection
Final street alignments may change and are subject to final design, engineering, and permitting.
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R
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R
D
SW BULL MOUNTAIN RD
SW
R
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A
K
R
D
SW BEEF
B
E
N
D
R
D
SW WOODHUE ST
SW
1
5
0
T
H
A
V
E
MENLORRESERVOIRCAP: 3.5 MGOE: 410'
PROPOSED550-FOOTPUMP STATION
PROPOSED550-FOOTRESERVOIR
LEGEND
UT PROPOSED RESERVOIR
#*!(P PROPOSED PUMP STATION
PROPOSED WATER MAINS
410 PRESSURE ZONE
550 PRESSURE ZONE
PROPOSED RIGHT-OF-WAY
NATURAL RESOURCE CORRIDOR
TIGARD CITY LIMITS
EXISTING WATER MAINS
10' CONTOURS
CONNECT TOEXISTING410-ZONETRANSMISSION
CONNECT TOEXISTING550-ZONETRANSMISSION
G:\PDX_Projects\13\1484 - Tigard River Terrace\GIS\CITY OF TIGARD FIGURES\WATER FIGURES\13-1484-OR-FIGURE 7 - PROPOSED IMPROVEMENTS.mxd 4/22/2014 5:57:36 PM DKH
FIGURE 7
13-1484
RIVER TERRACE PROPOSEDWATER SYSTEM IMPROVEMENTS
January 2014
CITY OF TIGARD
RIVER TERRACE COMMUNITY PLAN
´0 1,200
SCALE IN FEET
SOURCE:
CONTOURS - CLEAN WATER SERVICES.
AERIAL PHOTO - ESRI ARCGIS ONLINE (JULY 2010).
WATER SYSTEM - CITY OF TIGARD (DEC 2010).
ALL OTHER BASEMAPPING METRO/RLIS (NOV 2013).
18"
18"
SW
1
6
1
S
T
A
V
E
CONNECT TOEXISTING410-ZONETRANSMISSION
12"
331
550-ZONE TO410-ZONE PRV
ATTACHMENT 1
RTCP Project Update – Attachment 1 Page 1 of 1
Overview of River Terrace Planning Documents
DOCUMENT ADOPTION STATUS ADOPTION
MECHANISM DECISION MAKER
I. RIVER TERRACE INFRASTRUCTURE MASTER PLANS
Water ADOPTED Resolution Council
Sewer ADOPTED Resolution Council
Stormwater Target: Aug 2014 Resolution Council
Parks1 Target: Dec 2014 Resolution Council
Transportation Target: Dec 2014 Ordinance (Planning Commission)
Council
II. RIVER TERRACE COMMUNITY PLAN DOCUMENTS
River Terrace
Community Plan
Target: Dec 2014
Effective Date: TBD Ordinance (Planning Commission)
Council
Comprehensive Plan
and Zoning Maps
Target: Dec 2014
Effective Date: TBD Ordinance (Planning Commission)
Council
Natural Resource Maps Target: Dec 2014
Effective Date: TBD Ordinance (Planning Commission)
Council
III. IMPLEMENTATION PROJECTS
River Terrace
Code Amendments Target: Dec 2014 Ordinance (Planning Commission)
Council
River Terrace
Infrastructure Funding
Strategy
Target: Dec 2014
Resolution Council
River Terrace
Public Improvement
Design Standards
Target: Dec 2014 Administrative
Staff Review City Engineer
Citywide Stormwater
Model and Standards Target: Dec 2014 Administrative
Staff Review City Engineer
Citywide Infrastructure
Financing Project2 Target: July 1, 2015 Resolution &
Ordinance Council
Notes:
1. The green highlighted rows identify those documents that will be combined into one River Terrace
Community Plan document package for City Council review in December.
2. The Infrastructure Financing Project will include a separate analysis and potentially a separate
adoption action for each infrastructure system, but any new fees or SDCs that result from this project
are planned to be in place by July 1, 2015.
River Terrace Community Plan
Adoption process
M Ay to August septeMber october starting noveMber
May–June
Water & Sewer
Public Comment Period
Council Briefing
Adoption
June–July
Parks & Transportation
Public Comment Period
Council Briefing
July–August
Stormwater
Public Comment Period
Council Briefing
Adoption
August
Planning Commission
Infrastructure Plans Briefing
8/18
Infrastructure Plan Review
Community Plan Development
Community Plan Review
September
Funding Strategy
Draft Proposal Available 9/9
City Council Workshop
9/23
September
Community Plan
Draft Plan Available 10/2
September
Community Development
Code Amendments
Draft Amendments
Available 10/2
October
Funding Strategy
Stakeholder Briefing 10/1
Stakeholder & Community
Discussion 10/15
Stakeholder
Recommendation 10/29
October
Community Plan
Comment Period 10/2–10/30
November
Community Plan,
Funding Strategy,
Parks & Transportation
Planning Commission Public
Hearing 11/17
City Council Public Hearing
12/16
Adoption Hearings