CPA2008-00003 Decision - CITY OF TIGARD 120 DAYS = N/A . (
DATE MAILED: 8/29/2008
414g- g.14
CITY OF TIGARD r I jARD
Washington County, Oregon
NOTICE OF FINAL ORDER BY THE CITY COUNCIL
Case Number: COMPREHENSIVE PLAN AMENDMENT (CPA) 2008 -00003
Case Name: TIGARD COMPREHENSIVE PLAN AMENDMENT TO UPDATE GOALS,
POLICIES, AND RECOMMENDED ACTION MEASURES PERTAINING TO
STATEWIDE PLANNING GOAL 5: NATURAL AREAS AND HISTORIC
RESOURCES
Applicant's Name /Address: City of Tigard 13125 SW Hall Boulevard Tigard, OR 97223
Owner's Names /Addresses: N/A
Address of Property: Citywide
Tax Map /Lot Nos.: N/A
A FINAL ORDER INCORPORATING THE FACTS, FINDINGS AND CONCLUSIONS APPROVING A
REQUEST FOR A COMPREHENSIVE PLAN AMENDMENT (ORDINANCE NO. 08 -13).
THE CITY OF TIGARD PLANNING COMMISSION AND CITY COUNCIL HAVE REVIEWED THE
APPLICANT'S PLANS, NARRATIVE, MATERIALS, COMMENTS OF REVIEWING AGENCIES, THE
PLANNING DIVISION'S STAFF REPORT AND RECOMMENDATIONS FOR THE APPLICATION
'DESCRIBED IN FURTHER DETAIL IN THE STAFF REPORT. THE PLANNING COMMISSION HELD A
'UBLIC HEARING TO RECEIVE TESTIMONY ON JUNE 2, 2008, CONTINUED TO JUNE 16, 2008 FOR THE
PURPOSE OF MAKING A RECOMMENDATION TO THE CITY COUNCIL ON THE REQUEST. THE CITY
COUNCIL ALSO HELD A PUBLIC HEARING TO RECEIVE TESTIMONY ON AUGUST 26, 2008 PRIOR TO
MAKING A DECISION ON THE REQUEST. THIS DECISION HAS BEEN BASED ON THE FACTS,
FINDINGS AND CONCLUSIONS CONTAINED WITHIN THIS FINAL ORDER.
Subject: ➢ An amendment to the current Comprehensive Plan Topic 3: Natural Features and Open Space; Topic 3.1:
Wetlands; Topic 3.2: Floodplains; Topic 3.3 Natural Resources; Topic 3.7: Historical Cultural Resources by
updating the goals, policies and recommended action measures to reflect current community conditions
and values. AT THE 8/26/08 CITY COUNCIL PUBLIC HEARING, THE COUNCIL
UNANIMOUSLY APPROVED THIS REQUEST (Ordinance No. 2008 -13).
ZONES: All Zones APPLICABLE REVIEW CRITERIA: Community Development Code Chapters
18.380 and 18.390; Comprehensive Plan Chapters Citizen Involvement, Environmental Quality, Hazards, Public
Facilities and Services, and Natural Features and Open Spaces; Metro Functional Plan Tides 3 and 13; and Statewide
Planning Goals 1, 2, 5, 6, 7 and 11.
Action: ➢ ® Approval as Requested ❑ Approval with Conditions ❑ Denial
Notice: Notice was published in the newspaper, posted at City Hall and mailed to:
® Affected Government Agencies ® Interested Parties
Final Decision:
THIS IS THE FINAL DECISION BY THE CITY AND IS EFFECTIVE ON September 25, 2008.
adopted findings of fact, decision and statement of conditions can be obtained from the City of Tigard Planning
—lvision, Tigard City Hall, 13125 SW Hall Boulevard, Tigard, Oregon.
Appeal: A review of this decision may be obtained by filing a notice of intent with the Oregon Land Use Board of
Appeals (LUBA) within 21 days according to their procedures.
Questions: Call the City of Tigard Planning Division or the City Recorder at (503) 639 -4171.
CITY OF TIGARD, OREGON
TIGARD CITY COUNCIL
ORDINANCE NO. 08- / 3
AN ORDINANCE ADOPTING COMPREHENSIVE PLAN AMENDMENT CPA 2008 -00003
TO UPDATE THE GOALS, POLICIES, AND RECOMMENDED ACTION MEASURES
PERTAINING TO NATURAL RESOURCES AND HISTORIC AREAS, STATEWIDE
PLANNING GOAL 5, .
. ,�5 -...44v HDED.
WHEREAS, there exist substantially changed conditions and circumstances in the context of Natural
Resource and Historic Areas management and protection since adoption of the existing Tigard
Comprehensive Plan in 1983; and
WHEREAS, the Tigard City Council directed staff to complete a full update of the Tigard
Comprehensive Plan, including a process for garnering citizen input; and
WHEREAS, the Tigard visioning reports, community surveys, and policy interest team meetings were
utilized to develop draft language for the update of the Tigard Comprehensive Plan; and
WHEREAS, the City has proposed an amendment to the Tigard Comprehensive Plan Topics 3 by
updating Goals, Policies, and Recommended Action Measures corresponding to Statewide Planning
Goal 5; and
WHEREAS, the Tigard Planning Commission held two public hearings, which were noticed in
accordance with City standards, on June 2, 2008, and June 16, 2008, and recommended approval of
the proposed CPA 2008 -00003 by motion and with unanimous vote; and
WHEREAS, on August 26, 2008, the Tigard City Council held a public hearing, which was noticed
in accordance with City standards, to consider the Commission's recommendation on CPA 2008-
00003; and
WHEREAS, on August 26, 2008, the Tigard City Council adopted CPA 2008 -00003 by motion, as
amended, pursuant to the public hearing and its deliberations; and
WHEREAS, Council's decision to adopt CPA 2008 -00003 is based on the findings and conclusions
found in the City of Tigard staff report dated August 13, 2008, and the associated record, which are
incorporated herein by reference and are contained in land -use file CPA 2008 - 00001.
NOW, THEREFORE, THE CITY OF TIGARD ORDAINS AS FOLLOWS:
SECTION 1: Tigard Comprehensive Plan is amended to include new text and to rescind existing
text as shown in "EXHIBIT A "; and
SECTION 2: This ordinance shall be effective 30 days after its passage by the Council, signature
by the Mayor, and posting by the City Recorder.
ORDINANCE No. 08- 13
Page 1 of 2
PASSED: By Unanimous vote of all Coupcll members present after being read by
number and title only, this au clay , 2008.
C CCL/4) 1
Catherine Wheatley, City ecorder
APPROVED: By Tigard City Council this at flay of-4 , 2008.
Craig • ksen, Mayor
Approved as to form:
-CA/tAA4/-
&)/Attorney
oi
Copy of
riai on Hie
By:
Deputy Recorder - City of Ti
DT
ORDINANCE No. 08- 3
Page 2 of 2
EXHIBIT A
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Natural Resources and
Historic Areas
To protect natural resources and conserve scenic
and historic areas and open spaces."
0
•
NATURAL RESOURCES AND HISTORIC AREAS
ADOPTED AMENDMENTS
DATE CPA# CHANGES
08 -26 -08 2008 -00003 Entire chapter updated by Ordinance 08 -13
SECTION COVER PHOTO: CITY STAFF
Tualatin River.
1 City of Tigard Comprehensive Plan
Ali liPit
4
NATURAL RESOURCES AND HISTORIC AREAS
F. ,
1 ach community possesses certain
natural and historic resources that "The
J help to establish its identity. Tigard
is fortunate to contain a variety of these COMMUflity
:_
resources that contribute to its high quality ll atZif "al
of life. From the riparian corridors along the
Tualatin River and its tributaries, to the City's reso Ur ces are
wetlands, to the upland habitat resources, the
community's natural resources are a visual a visual and
and ecological asset. The historic and cultural
resources of the community represent a part ecol
of the community that provides a living history asset.
of the area Protecting and conserving these
resources are vital components to a successful +`
land use planning program.
GOAL 5: Natural Resources, Areas, and Op Spaec s
"To protect natural resources and conserve scenic and historic areas and open spaces."
As awareness of the importance of natural and historic resources and their
relationship to the quality of life has increased, so has concern for protecting
these resources. Protecting the City's valuable natural and historic resources
is thus one of Tigard's primary goals. In addition, the City must comply with
federal, state, and regional laws protecting the resources, including sensitive,
threatened, and endangered species and their habitats. The following resources
are addressed in this chapter:
• Fish and Wildlife Habitat
• Wetlands
• Streams
• Groundwater
• Historic and Cultural Resources
As Tigard's population continues to grow, so does the potential for conflict
between the desire to preserve resources and the need to provide adequate land
for growth. As development patterns change to accommodate growth, more
pressure is placed on the resources that are present. The tension between the
built and natural environments results from the competition for land resources.
The steady trend of growth and development further necessitates the impor-
tance of finding a suitable balance in the future, both locally and regionally.
Comprehensive Plan I City of Tigard 5 -1
NATURAL RESOURCES AND HISTORIC AREAS
Fish and Wildlife Habitat
Despite growing urbanization, Tigard and the surrounding area remain home
to an impressive diversity of birds, mammals, fish, amphibians and reptiles.
Fish and wildlife species depend on a complex array of habitat conditions for
their food, water, mobility, security, and reproductive needs. Wildlife habitat
within the City of Tigard is heavily concentrated adjacent to water bodies, such
as Summer and Fanno Creeks, Summer Lake, and the wetlands in Cook Park.
However, there are patches of upland habitat in drier, higher elevations across
the City, such as the forested ravines of Bull Mountain. This upland vegetation
not only contributes in providing protective cover for wildlife, but also contrib-
utes to the aesthetic quality of the community and serves as an essential element
in controlling runoff and soil erosion, moderating temperatures, and reducing
air pollution.
A number of agencies are involved in the effort to address the management
and protection of fish and wildlife habitat. In 2000, Metro began work on a
regional inventory of significant fish and wildlife habitat, focusing on riparian
corridor and wildlife habitat resources. Shortly after completion of the inven-
tory in 2002, the Tualatin Basin Partners for Natural Places, an alliance between
Washington County and local cities (including Tigard) working with Metro,
Tualatin Hills Parks and Recreation District and Clean Water Services, was
formed to meet relevant federal, state, and regional requirements. Metro
entered into an intergovernmental agreement (IGA) with the Tualatin Basin
Partners for Natural Places to develop a basin - specific approach to protect
Goal 5 (riparian and wildlife habitat) resources in compliance with Metro's
Urban Growth Management Functional Plan, Title 3 (Water Quality and Flood
Management) and Tide 13 (Nature in Neighborhoods). The result of the IGA
was the City adopting the Significant Habitat Areas Map and voluntary habitat
friendly development provisions in December 2006 that seek to protect the
wildlife habitat identified within the community. The provisions include an
opportunity for low impact development practices that can reduce impacts to
the identified resources.
The Tualatin Basin Partners for Natural Places used the regional habitat inven-
tory as the basis for conducting a general analysis of the Economic, Social,
Environmental, and Energy (ESEE) consequences of allowing, limiting, or
prohibiting uses that would negatively impact inventoried resources. The site -
specific component of the ESEE analysis provided a more localized analysis
and an opportunity to refine the Basin -wide "limit" decision where necessary.
5 -2 City of Tigard Comprehensive Plan
SPAIMPt
AMOK
NATURAL RESOURCES AND HISTORIC AREAS
The analysis results show that the City of Tigard has 588 acres of habitat desig-
nated, as "highest" value (i.e. Metro inventoried Class 1 and II riparian resources
within the Clean Water Services Vegetated Corridor). An estimated 370 acres
of Class I and II riparian habitat situated outside the Clean Water Services'
vegetated corridor are designated as "moderate" value. In addition, 422 acres of
non -Class I and II riparian resources within the City are designated as "lowest"
value, including both upland and lower -value riparian habitat areas.
Wetlands "W et l ands
Wetlands, including swamps, bogs, fens, marshes, also offer
and estuaries, play a crucial role in a healthy
ecosystem by providing essential habitat for prime sites
waterfowl, fish, amphibians and many other for people
animal and plant species. The state defines a
wetland as an area that is inundated or saturated to witness
by surface water or groundwater at a frequency
and duration sufficient to support, and that under the wonders
normal circumstances does support, a prevalence
of vegetation typically adapted for life in satu-
o a un
rated soil conditions (Oregon Administrative Rule natural
(OAR) 660 - 023 - 0100). These areas also serve
several natural hydrologic functions, including setting...
absorbing flood waters, sustaining summer stream
flows, replenishing groundwater, and filtering out
harmful pollutants from waterways. Wetlands also offer prime sites for people
to witness the wonders of a unique natural setting where fish, wildlife, plants,
and water converge. These beneficial functions of wetlands, however, may be
adversely affected by human activities such as encroachment through develop-
ment, alterations to natural drainage patterns, pollution, and the introduction of
nuisance plant species.
As outlined under OAR 141 -086 for Wetland Conservation Planning, Tigard's
locally significant wetlands were designated according to the criteria and proce-
dures for identification of significant wetlands adopted by DSL. Inventoried
wetlands were deemed significant if they received the highest rating on at least
two of the four primary wetland functions, namely wildlife habitat, fish habitat,
water quality, and hydrological control. Of the wetlands (within the City limits)
identified in Tigard's Local Wetlands Inventory, roughly 98% are classified as
significant wetlands.
Comprehensive Plan I City of Tigard 5 -3
•
NATURAL RESOURCES AND HISTORIC AREAS
In 1997, the City of Tigard Local Wetlands Inventory (LWI) and Wetlands
Assessment were approved by DSL. Approval by DSL means that the wetlands
inventory meets state L \XJi standards, and therefore becomes part of the
State Wetlands Inventory and must be used in lieu of the National Wetlands
Inventory.
Since the approval of the LWI, several new wetland delineations have occurred
within the city limits. These new delineations were performed by wetland profes-
sionals and concurred by DSL. The newly delineated wetlands become part
of the LWI, although a function assessment was not performed. Without the
assessment, significance cannot be determined. However, the majority of the
newly delineated wetlands is currently under protection from the City's sensi-
tive lands review process because of their location in a stream corridor, 100 -
year floodplain, or within the CWS vegetated corridor. The remaining wetlands,
although not covered by the City's sensitive lands review process, are subject to
the state Removal -Fill Law and must secure permits as required by the law
Streams
Roughly 30 Hiles of stream corridors cross through the City and nearly all the
streams in Tigard drain into Fanno Creek, which then flows into the Tualatin
River. These stream corridors provide a complex ecosystem linking water,
land, plants, and animals. They perform several ecological functions, including
storing and conveying surface water, modulating flows, removing pollutants, and
providing vital habitat for aquatic organisms.
The City collaborates with Clean Water Services (CWS), the surface water
management and sanitary sewer system utility for urban Washington County,
to protect local water resources. Through CWS Design and Construction
Standards, local governments in the Tualatin Basin (including Tigard) developed
a unified program to address water quality and flood management requirements
for Title 3 of Metro's Urban Growth Management Functional Plan.
In 2002, the City of Tigard adopted regulations restricting development within,
and adjacent to, sensitive water resource areas, including streams, through
standards in the CWS Design and Construction Standards. The CWS standards
provide for vegetated corridor buffers, ranging from 15 to 200 feet wide, and
mandate restoration of corridors in marginal or degraded condition. In addition,
land -use applicants proposing development near streams and wetlands are
required to prepare a site assessment and obtain approval from CWS prior to
submitting a land use application to the Cite.
54 City of Tigard I Comprehensive Plan
NATURAL RESOURCES AND HISTORIC AREAS
Additionally, the Tigard Community Development Code (1 8.775) contains a
chapter devoted to the protection of sensitive lands, including natural drainage -
ways, wetlands, and the 100 -year floodplain, by requiring applicants proposing
development within a sensitive area to obtain a permit for certain activities
depending on their nature and intensity.
The City of Tigard also collaborates in implementing Clean Water Services'
Healthy Streams Plan (June 2005). The goal of this plan is to improve watershed
and stream health for community benefit by recommending a number of policy
and program refinements, as well as outlining a capital projects program. The
capital projects focus on stream preservation and enhancement, flow restoration,
community tree planting, stormwater outfall and culvert replacement.
Groundwater
The importance of groundwater to the community is twofold. First, it serves
the function of naturally replenishing surface waters such as wetlands, streams,
and lakes. This helps provide vital habitat for aquatic organisms and wildlife.
Secondly, it is a source of clean water to help meet human water needs for
drinking, household use, commercial /industrial use, and irrigation.
The western portion of the City of Tigard is located above the Cooper
Mountain /Bull Mountain Critical Groundwater Area. The Critical Groundwater
Area was declared in 1973 in response to heavy pumping and the slow rate of
recharge. This is significant because the City owns water rights to withdraw
groundwater from the aquifer and it was once an important source of drinking
water. Currently, the City of Tigard Water Division has one groundwater well in
operation that is available to supplement the drinking water supply in times of
high demand. The Water Division has also developed Aquifer Storage Recovery
wells that allow otable water to be injected into the aquifer during the winter to
P injected q g
supplement the summer high demands.
Historic and Cultural Resources
In 1984, the City adopted a Cultural Resource Overlay District to manage signif-
icant historic resources. Section 18.740 of the Community Development Code
governs the application and removal of the district overlay, the primary purpose
of which is to facilitate the protection, enhancement, and conservation of land-
marks and historic and cultural sites and areas. Under state law (ORS 197.772)
enacted in 1995, a local government is required to allow a property owner to
Comprehensive Plan City of Tigard 5 -5
NATURAL RESOURCES AND HISTORIC AREAS
remove a historic property designation that was imposed by the local govern-
ment; in addition, the property owner may refuse to consent to the designation
at any time in the process, thus removing the property from consideration for all
but the National Register of Historic Places. The implication of the statute and
rule for Tigard's current historic code provisions is that if the property desig-
nation does not have owner consent, the provisions are no longer relevant or
enforceable.
Local conservation efforts can be combined with the National Register of
Historic Places (the National Register), a list of cultural resources of national,
regional, state, or local significance that is kept by the Department of the
Interior's (DOI) National Park Service (NPS). Being listed on the Register does
not protect a property from demolition, but it does document and evaluate the
property's historic significance based on National Register criteria and makes the
property eligible for federal grants when available, including rehabilitation tax
credits.
Many of the cultural resources associated with the original development of
the Tigard area have not survived the City's growth during the last forty years.
Improvements to Hwy 99W also contributed to the demise of the City's
resource base. Those resources that survived include a mix of residential, educa-
tional, and commercial buildings.
Currently, nine resources have the overlay designation. Two sites, the John F.
Tigard House and the Shaver -Bilveu House, are listed on the National Historic
Register. The only property from which the overlay has been removed was the
Tigard Feed and Garden Store when the owner initiated the removal request.
Chapter 18.740 of the Community Development Code requires that if an
overlay property receives approval for demolition, a condition of approval
will require submittal of a graphic and pictorial history and artifacts to the
Washington County Museum.
KEY FINDINGS:
• City sustainability programs will be evaluated for inclusion in the Capital
Improvement Plan and may have an impact on future building renovations
as it relates to the Tigard Community Development Code.
• The citizens of Tigard are concerned about population increases and the
impact upon the community.
5 -6 City of Tigard Comprehensive Plan
NATURAL RESOURCES AND HISTORIC AREAS
SPANK
• Clean Water Services' Design and Construction Standards establish a vege-
tated corridor buffer adjacent to the City's streams to protect water quality;
the City adopted these standards in 2002.
• In addition to contributing to the general
aesthetic quality of the area, streams and "Roughly 98%
the adjacent riparian areas perform several
ecological functions. of the City's
• Roughly 98% of the City's wetlands are wetlands are
classified as "locally significant wetlands," classified
per procedures outlined under OAR
141 -086. as "locally
• The Tigard Community Development significant
Code requires Sensitive Lands Review for wetlands."
any development which would impact
significant wetlands or the vegetated
corridor buffer to wetlands.
• Wetlands may be adversely affected by human activities such as encroach-
ment through development, alterations to natural drainage patterns, pollu-
don, and the introduction of nuisance plant species.
• Based on the Economic, Social, Environmental and Energy (ESEE) analysis
conducted by the Tualatin Basin Partners for Natural Places, 588 acres of
the inventoried regionally significant habitat was designated as "Highest"
value," 370 acres was designated as "moderate value," and 422 acres was
designated as "lowest value."
• In December 2006, the City of Tigard adopted the Significant Habitat Areas
Map and voluntary Habitat Friendly Development Provisions (Ordinance
06 -20) that encourages the protection of habitat with the use of low impact
development practices.
• The Critical Groundwater Area on Cooper Mountain and Bull Mountain
was declared by the State of Oregon in 1973 and restricts the withdrawal of
groundwater on the western half of the City.
• Groundwater wells currently in operation are limited to one traditional well
and two aquifer storage recovery (ASR) wells.
Comprehensive Plan I City of Tigard 5 -7
•
NATURAL RESOURCES AND HISTORIC AREAS
• In 1984, the City adopted a Historic Overlay District to manage significant
historic resources.
• In 1995, ORS 197.772 required local governments to allow a property owner
to remove a historic property designation that was imposed by the local
government. The implication for Tigard's current historic code provisions is
that if the property designation does not have owner consent, the provisions
are no longer relevant or enforceable.
• Nine resources have the overlay designation. Two sites, the John F. Tigard
House and the Shaver - Bilyeu House, are listed on the National Historic
Register; only the Tigard house has the Historic District overlay.
• The citizens of Tigard value trees and natural resources and feel that
protecting these resources will benefit the community.
• The citizens of Tigard are concerned about the impact of growth on the
community's natural resources.
GOAL:
5.1 Protect natural resources and the environmental and ecological func-
tions they provide and, to the extent feasible, restore natural resources to
create naturally functioning systems and high levels of biodiversity.
POLICIES:
I . The City shall protect and, to the extent feasible, restore natural
resources in a variety of methods to:
A. contribute to the City's scenic quality and its unique sense of place;
B. provide educational opportunities, recreational amenities, and buff-
ering between differential land uses;
C. maximize natural resource functions and services including fish and
wildlife habitat and water quality; and
D. result in healthy and naturally functioning systems containing a high
level of biodiversity.
2. The City shall demonstrate leadership in natural resource protection
through the use of sustainable building practices and low impact devel-
opment strategies, to the extent feasible, on all City projects.
5 -8 City of Tigard I Comprehensive Plan
NATURAL RESOURCES AND HISTORIC AREAS
3. The City shall provide options to conventional construction and site
planning techniques, and incorporate sustainable and low - impact
building and site planning technologies into City codes and standards as
they become available.
4. The City shall actively coordinate and consult with landowners, local
stakeholders, and governmental jurisdictions and agencies regarding the
inventory, protection, and restoration of natural resources.
5. The City shall utilize periodic assessments of the effectiveness of the
City's programs and regulatory structures to guide future decisions
regarding natural resource protection, management, and restoration.
6. The City shall utilize incentives or disincentives, to the extent feasible,
to discourage property owners from removing or degrading natural
resources prior to application for development or annexation.
7. The City shall protect and restore riparian and upland habitats to the
maximum extent feasible on public and private lands.
8. The City shall protect and, to the extent feasible, restore the diverse
ecological and non - ecological functions and services of streams,
wetlands, and associated riparian corridors.
9. The City shall implement measures to protect groundwater.
10. The City shall complete a baseline inventory of significant natural
resources and update or improve it as necessary, such as at the time
of Comprehensive Plan Periodic Review, changes to Metro or State
programs, or to reflect changed conditions, circumstances, and commu-
nity values.
11. The City shall assist landowners in the protection of natural resources
through diverse methods including, but not limited to: education, incen-
tives, planned development standards and regulations, and conservation
easements.
12. The City shall develop and implement standards and procedures that
mitigate the loss of natural resource functions and services, with priority
given to protection over mitigation.
Comprehensive Plan City of Tigard 5 -9
NATURAL RESOURCES AND HISTORIC AREAS
13. The City shall identify, preserve, and create linkages between wildlife
habitat areas, to the extent feasible, as a key component of parks, open
space, and surface water management plans.
RECOMMENDED ACTION MEASURES:
i. Identify and inventory locally significant natural resources not
included in the Nature in Neighborhoods and Tualatin Basin Natural
Resources Coordinating Committee studies.
ii. Utilize an adaptive management approach that seeks to improve
natural resource standards and programs by establishing a measur-
able baseline condition and desired end goals, periodically measuring
the success of existing city actions against those goals, and making
corrections as necessary to improve success.
iii. Inventory and preserve small perennial streams as natural resources
for their contributions to fish and wildlife habitat.
iv. Periodically identify and take steps to improve the effectiveness of
existing natural resource protections with the Development code.
v Continue membership and active involvement with nonprofit and
government agencies such as the Tualatin Basin Natural Resources
Coordinating Committee.
vi. Incorporate bioregional and watershed based conservation strate-
gies, such as those identified in the Oregon Conservation Strategy
and Clean Water Service's Healthy Streams Plan into regulations and
restoration programs.
vii. Utilize indicators of biodiversity as a measure of the quality and
health of natural resource systems, and as a measure of success of
City actions and strategies.
viii. Implement a program to assist the state in identifying and canceling
unused water rights within Tigard for the purpose of stabilizing or
reducing surface and groundwater diversion and extraction.
5 -10 City of Tigard Comprehensive Plan
•
AIM
NATURAL RESOURCES AND HISTORIC AREAS
AMOK
ix. Protect and restore natural resources through a variety of methods
including, but not limited to, the use of land management regula-
tions and incentives that encourage habitat friendly development and
provide flexibility in meeting state and regional land use goals.
x. Implement outreach and regulatory programs to identify and remove
invasive species that threaten habitat areas.
xi. Identify and implement measures to protect riparian vegetation
necessary for erosion control, water quality, and fish and wildlife
habitat.
xii. Identify and implement measures to maintain and, where possible,
restore hydrologic systems and regimes that support fish and wildlife,
provide flood control, and enable natural recharge of groundwater
and other ecological and community benefits.
xiii. Work with regional and state agencies to identify and address poten-
tial sources of contamination.
xiv. Identify and implement measures to reduce the amount of imper-
vious surface area covering the City that prevents the natural
recharge of groundwater aquifers.
xv. Develop and utilize incentives to foster private investment in green
building techniques and technologies.
GOAL:
5.2 Promote the preservation and protection of historically and culturally
significant resources.
POLICIES:
1. The City shall actively promote the protection and preservation of
historic and cultural resources and consider the development and imple-
mentation of new culturally significant resources, and cooperate with
organizations involved in their protection.
Comprehensive Plan I City of Tigard 5 -11
NATURAL RESOURCES AND HISTORIC AREAS
RECOMMENDED ACTION MEASURES:
i. Promote and publicize historic resources in the City.
ii. Support volunteer programs to preserve historic resources.
iii. Encourage rehabilitation and reuse of historic buildings to the extent
feasible.
iv. Consider holding City functions in historic buildings, where
appropriate.
v. Support efforts to obtain historic designation at the city, county,
state, and national levels for public and private historic sites.
vi. Facilitate the development of appropriate economic options and
alternatives for historic and cultural resources and organizations
involved in their protection, when requested.
5 -12 City of Tigard I Comprehensive Plan
3. NATURAL FEATURES AND OPEN SPACE
T14is -ci ap d -range of topics - all- havin l resources- located - within -the
Tigard-Urban Planning - Area. This chapter- retlects- the- eer{serr►s- dressed -i
Bien ling= Gaels -ihsl ding
Gael #3 Agricultural . Lands; Goal i -i Forest Laid --heal #5 Open Spaces; Seeds-and
Historic Areas-and: Natural - Resources; Coal #7 Areas- subject to- Natural - Disasters and
Hlazardsi- and-6oa eed&
The-natural-environments-within the planning- area- offer -- many- opper# unities -for a. unique-and- healthy -urban
development. Those environments hen- viewed .as a- series -of- systems- rattier - "than- isolated feat ires will
pr-ovide-Tlg withments nocessary -for a healthy - place -in -which to live -work and- play— Fieedplatn
ple, can pravi ° . . - ... - - - - - .. _ .. • - -
neighber-hoods -and- sewi ses- in-adeitien- te- provtding elatively- inexpe .` a ter - runoff --l
is-te- the- communi ty- s- benefit-that- consideratten -he given -to -ooth the-- oppertunitles =and- the- limi#ations-of -the
vad ous-envirenments- within-the- planningarea,
The notatal- envirenmentc ° iasluded- within - the - "planning area all - have -theif -own- respective- limitations- with - regard
to- urbanization -- D evelopment - "pressure -upon- lands- wit# - such- limitations -can have profound- effects -on -tile
environment. Erosion- of steep=slepes- caused- by- inappropriate=developrnent, for inslene,edoes- net -eccur as an
Isolated-incident -TSolt -type permeability, vegetation-and- drainage all-play -major rot cted by
development —Likewlse - _ the - effects -e inappropriate- development=les ated- within- ihe- fleedplainareas could -have
adverse erties - both- up- anddewn stream from the :development site. The social, cultural -and
economic-values -of-su s -could be reduced -by- the -eff eats- ef- urban= development-- noarby. The
limitations of- the- venous>environments choiuld- be= sensidered -in- reviewin new - development - within - he-planning
area
The r000gnitien of the- natural- eriviron he- plafining-area- and -the- development -ef- Findings- and- pelisies
which address - the- charaateerictics of the - environment- are -- extremely - Important elements- in- the- Comprehensive
Plan. The purpose of this = chapter is to . define tho parameters-of -the various - natural- environments -in. the
planning -area and - te- iderit+fy- the- lifaitatier ar d- epportuaittes herent in- those- environments.
Additional-information-on this -topic- -is- available -in the "Comprehensive Plan Report: Natural - Features and
Open- Spaces."
3.1 WETLANDS
POLICY
3.1.1 THE CITY SHALL NOT ALLOW DEV�. IOPMENT IN AREAS HAVING THE FOLLOWING
BEVELOPMENT LIMITATIONS EXCEPT WHERE THE DEVELOPER DEMONSTRATES THAT
GEF1 NIQUES RELATED TO A SPECIFIC SITE PLAN
WILL MAKE THE AREA SUITABLE:'FOR THE PROPOSED -)EVE • e - _ • e
■ - e e _ • • - - - - s NIFICANT WETLANDS. ON THE FLOOD -PAIN
AND -W€ NDS MAp
e • e • _ • • • - - • DER CHAPTER 18.26 OF THE
ENT CODE;
fRev--O _ ; . .
3.2 FLOODPI AINS
s e - e .y e • • • - ATED AS SIGNI€- IGAN-T •
s : •- a - s •. • e _ • e-_ _ • I _ N THE
'e • • • -• ° -• • _ : ' • -IN TWENTY FIVE (25) FEET OF THE DESIGNATED
•
WETLANDS-AREA. D PROPERTY ADJACENT ON PROPEY AENT TO SIGNIFICANT WETLANDS
.�' . - • 11. - : .. e �, - ECTION OF THE CODE •
(Rev. Oro - 0f - Ord. 08 10; Ord. 00 22; Ord. 86 13; Ord. 84 36; Ord. 07 20)
3.3 NATURAL RESOURCES
Findings
• Currenty,thero aro extensive- rock -arid gravel- extraction- areas - located to the north -and -West of Tigar -d s
planning- area- within- Beaverton= and - Washington- County,
(Rev- -Ord. 01 07)
• There is . one- active - a neral -er- aggregate- reseeree-within- the-T+gard Planning Ar a, known as -tine
O irham Pits, Which )s- operated- by- Washington- Geunty
POLICY
3.3.1 THE CITY OF TIGARD SHALL SUPPORT THE ;EFFORTS OF WASHINGTON COUNTY,
BEAVERTO' • - - ® • . - - ' ° - - - - 11 ' • - =
THERO - -!-
Imp ..
1. The City shall encourage -these isdisttetrs -regotating rook o xtrastien to close ly - monitor -tine- relationship
between - the -dema nd- the- aeiount- of- land-olanned -for rock - and - gravel oxtrastien -and
processing=
3.1 NATURAL-AREAS
Findings
• There are-a-vanety of- plants; animals -and- water -fewl- within e-Tlgard- planning - area - which- add - greatly
to- the - quality -of- lift; - within- five- communlly
• Easl -spesi plex-an s- set -ef senditie
water and - vegetative sever -er- ether• - natural- feattir s necessary- #enescapeagd- reproduction-
• The- stgnifisant- plant- senrranitiec and animal-habitat areas are the riparian - vegetation- adjacent to the
water- resources -in- the -sor hlty, acid -var inicer- and - Fus
• Development= adjaseat- te- e*isting- wildlife -areas car - adversely - affect thoco areas and -in- soave- instances
can ally- elirn}nate- these -n
• Vegetation-contrtbr tes-to the aesthetic- quality -of the -se unity- Vegotation contrets- eresien-absorb&
sound- and - moderate tempest we I t-al 7 c , i
Ad- rr19lStarE- 66nt8Rt -e .
aim - pollution and-gl ar and ens- the- mnpact -o€ th t-
• statewide - goa - re q'Mires- local- juisdistiens4e- Inventory -the - location quantity, and quality -of- resource
sites-located - within their urtsdietion&
• The City has completed -an= inventory -of --the- location- and- guantrty of -the= wetland- sites - within- its - Active
Planning Area. This inveRtafy- dees=not in e- fall = range- of- funstiens- and - values -sf
wetland areas- as- regeired- by- Geal -5- inventory standards-
• When -adequate- tnfora bl e-OAR 660 16 000 roqulfes -a -legal
goverment -lo- adept" a plan -poli s nt to address- Goal -a- requirements- relative - to -the
site- in-the- pest - acknowledgment- period:.
RQLICI S
3.4.1 THE CITY SHALL DESIGNATE, IN ACCORDANCE WITH GOAL 5, THE FOLLOWING AS
- e - _ - - • • _ • 4N-MENTAL--DD' N
a. SIGNIFICANT WETLANDS;
b. AREAS HAVING EDUCATIONAL RESEARCH VALUE, SUCH AS GEOLOGICALLY-AND
c. AREAS VALUED FOR THEIR FRAGILE CHARACTER. AS HABITATS FOR PLANTS,
ANIMAL OR AQUATIC LIFE, OR . HAVING ENDANGERED PLANT OR ANIMAL
SPECIES, OR SPECIFIC NATURAL FEATURES, VALUED FOR THE NEED TO
PROTECT NATURAL AREAS.
3.4.2 THE CITY SHALL:
' e - - • •. ! • ! - • !NG STREAM CORRIDORS BY
REQUIRING THAT AREAS OF .STANDING TREES AND NATURAL VEGETATION
b. REQUIRE THAT DEVELOPMENT PROPOSALS IN DESIG.• • e . e e - -
AREAS BE REVIEWED THROUG- ' - _ a ! ° - e _ _ _
TH
MINIMIZE E NUMB` - -.! , e r • e
c. REQUIRE CLUSTER TYPE DEVELOPMENT IN AREAS HAVING IMPORTANT
WILDLIFE HABITAT VALUE AS DELINEATED ON .THE: "FISH AND °WILDLIFE HABITAT
MAP'` ON FILE AT THE -CITY,
WETLANDS-ONCE ADEQUATE IN N THE LOCATION, QUALITY, AND
QUANTITY OF WETLAND. SITES IS OBTAINED: THIS GOAL 5 REVIEW WILL INCLUDE
DETERMINING WHICH WETLAND':SITES ARE ECOLOGICALLY AND SCIENTIFICALLY
SIGN _ _ _ AKING POLICY
- 4 ' ! ` `-' `- aN . AND PRESERVATION: OF THOSE
WETLAND A.REAS.DESIGNATED. AS SIGNIFICANT. THE CITY SHALL. COMPLETE ITS
GOAL 5 REVIEW OF WETLAND AREAS BEFORE THE CITY'S NEXT PERIODIC
REVIEW, BUT NO LATER THAN DECEMBER 23, 1996.
(Rev. Ord. 85 13; Ord. 03-30)
IMPLEMENTATION STRATEGIES
1. The City shall concide 4he- tastosion of an adequate - amount -ef -land adjacent to a floodplain -ef
dralnageway- for- dedisatien --te- e=Sity's natural -gre
eaway- systerr ailslks the .area.40-Ge441414e -10
support existing- habitats.
2. The-Gity- shall - eases:► rage - through- the-Planned- Developmea
# Proses- -Ine-reterttiori of large -varied
habitat areas-on-private-and-public lands- iasludi .
ag- inveflteried- plant = sad= aaimakeibrndaities:
3. The City shall - review- all - development- proposals -adjace+ E- te-wildlife- habitat areas to en;,ure that adverse
iaapacts en any vulldlifo, habitat - areas- are- rninin}iaed-and, if .need-b er-federal, state and
lesal=agencies review- the-develdpment-prepodal.a._
'1. Whore there exist large or- u1ni9uc: stande -ef, trees' or majowegetatlon- areas- Wit11+R- tbaTIenning- area -en
undeveloped-land he -city- shall- ensure - that- deveieeraent- aroposaisde- n et- sabstantialty -alter -the
sharaster -ef -the- vegetation areas threugh- the- Rlanned -De ietepment7Rfesecs -arid the 'Tres Cutting"
section of the-C-enirnuOity=Develepment -Gods-
3- 7-HISTORICAL CULTURAL RESOURCES
Findings
Hlsterie- featur-es- provide- a-1ia14-with lhe- pastand -add character -and- variety- to-the senununity- design-
Unfortunately uch of Tigard's. heritage -has -air ady been -lost to unrnanaged- development - wit - oaiy -a
few-- dislinst- structures - remaining-
•
• The - design -e#- development& within- tie- semmuaity- same - regarded - from- two- viewpoints= the - design -e#
structures as they rolato to nits- and- #unctIon- {architesturat -- design), and 'their- fetattene ip to the
surredadia>g -aree community- design). Beth dcpests- are- of-equal- tmpettaflse:
• Good- architestu€at -desig i- is- necessary te-ar e- Visual- Yeriety -and= allow- ter= indwidt al- Idontity. At 'the
wine- tune geed- sernmunity -soda iavldes- a- sense`of unity- with - other- development -- while- elkninatwig
sea Aisting-appearances.
POLICY
3.7.1 THE CITY S- • ! ' ! - e e - ERVATION AND PROTECTION OF
HISTORICALLY AND CULTURALLY SIGNIFICANT STRUCTURE, SITE OBJECTS AND
DISTRICTS WITHIN TIGARD.
1. To preserve the- sernmanity's- history -ae- Ines* -er historic sites shatl -be developed =and -made available -te
the-general-public. A ro ... m shat i .
p � I- he- deVetsped to acq ` :. rd. a nurnbor .o# :ti+slens
structures-identi iod as significant. The- Sity&hovld-eenskier ##e- reaevetien- efa-hi n
historic-museum-43r cultural- oentor and - meeting -hall- such as- Durham Sshoei, Ye .Old- Windmllt and -Jehra
Tigard - Herne-