Roadway Standards

These Roadway Standards provide the criteria for design and construction of roadways, accesses, site development and integrated drainage facilities under the jurisdiction of Clackamas County. 

Clackamas County is interested in comments and suggestions for improvements to the Roadway Standards. Please send any comments or questions to Development Engineering Supervisor Rick Nys at or call him at 503-742-4702.

Proposed revisions available for public comment through Feb. 21: Draft updates to the Clackamas County Roadway Standards and associated documents are open for public review from Jan. 22, 2020 through Feb. 21, 2020.  An example comment log is provided below. Comments and questions should be directed to

Read the documents

Roadway Standards

Roadway Standards Updated April 2018

Associated Documents

ADA (Americans with Disabilities Act) Checklists


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Transportation Engineering, Transportation and Development