Transportation System Plan

Clackamas County's Transportation System Plan (TSP) was adopted by the Board of Commissioners in December 2013. An Active Transportation Plan was added to the TSP in 2015.

The TSP reflects all relevant national, state and regional transportation and planning requirements, and provides policies, guidelines and projects to meet transportation needs for residents, businesses and visitors in unincorporated Clackamas County for 20 years.

A Public Advisory Committee and a Technical Advisory Committee guided the two-year plan development process, based on extensive input from the public, the business community, planning and transportation experts, and public and private partners. The TSP includes more than 300 needed transportation projects identified by the community and transportation professionals throughout unincorporated Clackamas County over the next 20 years, though funds are likely to be available for only a small percentage of the total.

The TSP also includes updated policies to guide development of the projects that:

  • Look at the transportation system through a local perspective (rural and urban);
  • Specifically address safety, health, equity and sustainability;
  • Integrate transportation with land use;
  • Address active transportation (bicycling and walking) and accessibility needs;
  • Support the movement of freight; and
  • Ensure compliance with national and local regulations, including a change of intersection and roadway performance standards.

"This transportation plan has evolved over more than two years with extensive public involvement," said County Commission Chair John Ludlow in December 2013. "It will help us continue to provide the safe and reliable transportation system our residents and businesses need and deserve."

For more information, please contact Karen Buehrig at or 503-742-4683.

Brief Overview

TSP Vision

Building on the foundation of our existing assets, we envision a well-maintained and designed transportation system that provides safety, flexibility, mobility, accessibility and connectivity for people, goods and services; is tailored to our diverse geographies; and supports future needs and land use plans.

TSP Goals

  • Sustainable: Provide a transportation system that optimizes benefits to the environment, the economy and the community.
  • Local Business and Jobs: Plan the transportation system to create a prosperous and adaptable economy and further the economic well-being of businesses and residents of the county.
  • Livable and Local: Tailor transportation solutions to suit the diversity of local communities.
  • Safety and Health: Promote a transportation system that maintains or improves our safety, health, and security.
  • Equity: Provide an equitable transportation system.
  • Fiscally Responsible: Promote a fiscally responsible approach to protect and improve the existing transportation system and implement a cost-effective system to meet future needs.

TSP Projects

  • Tier 1: 20-year capital projects – Needed projects and investments matched with anticipated funding
  • Tier 2: Preferred capital projects – Projects and investments needed to meet population, housing and employment projections, but that don't have identified funding at this time
  • Tier 3: Long-term capital project needs – Projects that would be beneficial to do if funds were available


Transportation System Plan
(Chapter 5, Clackamas County Comprehensive Plan)

Background and Issues
Foundation and Framework
5.A. Compliance and Coordination Policies
5.B. Road Safety Policies
5.C. Equity, Health and Sustainability Policies<
5.D. Intelligent Transportation Systems (ITS) Policies
5.E. Transportation Demand Management (TDM) Policies
Land Use and Transportation
5.F. Integration of Land Use and Transportation
5.G. Parking Policies
5.H. Rural Tourism Policies
5.I. Rural Scenic Roads Policies
Active Transportation
5.J. General Active Transportation Policies
5.K. Design Policies
5.L. Construction Policies
5.M. Facilities Policies
5.N. Multi-Use Path Policies
5.O. Functional Classification and Design Policies
5.P. Project Development Policies
5.Q. Access Standard Policies
5.R. Policies on Improvements to Serve Development
5.S. Performance Evaluation Measure Policies
5.T. Transit Policies
Freight, Rail, Air, Pipeline and Water Transportation
5.U. General Freight Policies
5.V. Freight Trucking Policies
5.W. Rail Policies
5.X. Airport Policies
5.Y. Pipeline Policy
5.Z. Water Transportation Policies
Finance and Funding
5.AA. General Finance and Funding Policies
5.BB. Maintenance Policies
Transportation Projects and Plans
5.CC. Capital Improvement Plan Policies
5.DD. Special Transportation Plans and Studies
Tables, Figures and Maps
Capital Improvement Plan
Table 5-1: Metro 2040 Non-Drive Alone Targets (in text)
Table 5-2a: Capacity Performance Evaluation Measures/ Urban (in text)
Table 5-2b: Capacity Performance Evaluation Measures/ Rural (in text)
Table 5-3a: 20 Year Capital Projects
Table 5-3b: Preferred Capital Projects
Table 5-3c: Long Term Capital Projects
Table 5-3d: Regional Capital Projects
Figure 5-1: Typical Urban Roadway Cross Sections
Figure 5-2: Typical Rural Roadway Cross Sections
Figure 5-3: Typical Multi-Use Path Cross Section
Map 5-1: Scenic Roads
Map 5-2a: Planned Bikeway Network/Urban
Map 5-2b: Planned Bikeway Network/Rural
Map 5-3: Essential Pedestrian Network
Map 5-4a: Road Functional Classification/Urban
Map 5-4b: Road Functional Classification/Rural
Map 5-5: Metro Regional Street Design Classifications
Map 5-6: Potentially Buildable Residential Sites > 5 Acres in UGB
Map 5-7: Interchange Management Areas
Map 5-8a: Transit/Urban
Map 5-8b: Transit /Rural
Map 5-8c: High Capacity Transit (HCT) System Plan
Map 5-9a: Freight Routes/Urban
Map 5-9b: Freight Routes/Rural
Map 5-9c: Over-Dimensional Freight Routes/Urban
Map 5-9d: Over-Dimensional Freight Routes/Rural
Map 5-10: Airports
Map 5-11a: Greater Clackamas Regional Center/Industrial Area
Map 5-11b: East County
Map 5-11c: Greater McLoughlin Area
Map 5-11d: Northwest County
Map 5-11e: Southwest County (northern portion)
Map 5-11f: Southwest County (southern portion)

TSP Background Document
This compendium of technical memorandum and other documents, listed below, reports the results of the technical analysis and public involvement efforts undertaken as part of the TSP update project. It is adopted into the Clackamas County Comprehensive Plan Appendix B – Summary of Supporting Documents. For more information or to see or obtain a copy, please contact Karen Buehrig at or 503-742-4683.

Section 1: Technical Analysis
Section 2: Existing and Future Base Conditions (2010 and 2035)
Section 3: TSP Forecast
Section 4: Clackamas Regional Center Southwest Corridor Analysis
Section 5: 2035 Preferred Alternative
Section 6: Capital Projects
Section 7: Funding Analysis
Section 8: Policy Review
Section 9: Compliance
Section 10: Public Involvement
Section 11: Other County Plans
Section 12: Appendices


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