02/22/1995 - Packet CITY OF TIGARD
OREGON
TREE TASK FORCE MEETING
WEDNESDAY
FEBRUARY 22, 1995
7:00 P.M.
TIGARD CITY HALL, TOWN HALL CONFRENCE ROOM
13125 SW HALL BOULEVARD
TIGARD, OR 97223
(503) 639-4171
• MEMORANDUM
CITY OF TIGARD, OREGON
Y
TO: Tree Task Force
FROM: Dick Bewer dorff and Carol andsman
DATE: February 15, 1995
SUBJECT: Tree Protection Program
Based on the Tree Task Force discussions and suggestions, staff has put together a
tree protection program containing the following major components. The attached
has more specifics and other random thoughts.
1) ON SENSITIVE LANDS (which would include steep slopes, lands within a
stream corridor or lands within the buffer and area of a wetlands) the city will
require a tree permit. The applicant must prove that removal of the tree or
removal and mitigation will not decrease the level of erosion control or water
quality protection the tree provided. The city will produce a map showing
which areas are affected.
2) The city will conduct a significant tree study including review of other
communities' work, definition, identification and inventory. This information
will be used differently during the development process than it will be when
development is not occurring. In the later category, the city will not prevent
the removal of the tree but will offer incentives such as maintenance services
and recognition. During development, the city may not allow removal of a
significant tree,but will provide incentives such as the lessening of some other
development requirement, such as that proposed in the existing draft tree
ordinance.
3) DURING DEVELOPMENT, the city should require a tree plan which will
include an arborist analysis of existing trees, strategies for saving existing
trees or mitigating tree removal for a goal of no net tree loss. Significant trees
and trees in sensitive lands would be protected. The city will offer incentives
such as the lessening of other development restrictions, as appropriate.
4) Wildlife corridors, forests, natural lands will be protected through the goal 5
comprehensive plan process and through the city land acquisition program
(which has begun with attempts to purchase the red cedar forest in the
Metzger area).
I
TREES.....TREES....AND MORE TREES
EROSION/WATER QUALITY:
Within a stream corridor, or on a steep slope or within a wetland buffer or during the
development process, a tree may only be removed if it can be shown that the level or
erosion control will remain the same or be improved
TOOLS:
• Erosion Control Permit
• Tree Removal Permit
• Prohibitive Ordinance
• Map of These Areas
• Education
• Arborist
WATER QUALITY:
Erosion control should ensure no measurable adverse effect on water quality.
TOOLS:
• Education
• Erosion Control Ordinance
TREES HARMING THE ENVIRONMENT:
The City will provide information about appropriate trees and tree care.
TOOLS:
• Provide Information
• Require Removal of Hazardous Trees (TMC 7.40.060)
• Tree Plan for Development Identifying Suggested Species
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DURING DEVELOPMENT:
Tree removal will be regulated as part of the development review process.
TOOLS:
• Identify Significant Trees for Protection; Prohibit Removal
• Tree Banking/Mitigation Process Within Time Frame
• Tree Plan with Arborist Analysis to be Approved during Subdivision, Site
Development, Planned Development and Conditional Use Reviews
• Incorporate Incentives from Draft Tree Ordinance
SCENIC ENHANCEMENT:
Trees on public land will not be removed unless presenting a hazard to life or
property or thinning to enhance views or the integrity of stands of trees.
TOOLS:
• Tree Planting Program for Public Lands
• Comprehensive Plan Policy for Tree Protection on City Owned Land
• Require maintenance of parking strips by City and adjacent property owner(s)
• Tree City/Develop an education program
PRIVATELY OWNED RESOURCES:
Protect air, water and wildlife resources through City's Goal 5 Program.
TOOLS:
• Comprehensive Plan Amendments
• Acquisitions as Appropriate
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SIGNIFICANT TREES/SPECIES DIVERSITY:
Identify mature and desirable trees and maintain appropriate layers of trees and
vegetation in stands.
TOOLS:
• Survey Significant Trees - Develop a definition of significant - locate and map
• During the Development Review Process, Prohibitive Regulation
• Community or Property Owner Nomination Program
• City Maintenance of Significant Trees/Other Incentives
PERCEPTION TREES DISAPPEARING:
Develop tree planting and education program to become designated as a
"Tree City USA" City.
TOOLS:
• Ordinance/Criteria for Planting of Trees on City Owned Property
• Education
COMMERCIAL FORESTRY:
Commercial forestry operations within the City should protect community resources.
TOOLS:
• Identify sites that should require review under Commercial Forestry Practices.
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