As of August 2008, Clackamas County contains 1,879 square miles with approximately 1,400 miles of roads. Traffic conditions range from dense high volume urban corridors to low volume local rural roadways. Evaluation of the safety of the road system is an ongoing and never ending process and from the process project lists for safety related efforts are developed and maintained.
Top 10 Intersection List
This list includes the top 10 most active intersections related to crash rates along county roads or where county roads enter state highways.
- S. Barnards Road at Canby-Marquam Highway map
- SE Fuller Road at SE Harmony Road map
- Sunnyside Road at SE 122nd Avenue map
- SE 82nd Avenue at SE Johnson Creek Blvd map
- Highway 212 at SE 82nd Drive map
- Jennings Avenue at SE Oatfield Road map
- Sunnyside Road at 93rd Avenue map
- S. Beavercreek Road at Highway 213 map
- S. Beavercreek Road at Highway 211/Union Mills Road map
- Stafford Road at Borland (new roundabout opened October, 2008) map
Funded Safety Projects
- Stafford Road at Mountain Road
- SE 282nd at SE Stone Road
- Wilsonville/Ladd Hill
- Stafford Road at Borland Road
- S. Barnards Road at S. Canby Marquam Highway
Clackamas County started implementing Traffic Safety Corridors in 2002. There are currently two designated Traffic Safety Corridors on the County road system, Union Mills Road between Highway 213 and Highway 211 and Redland Road between Holly Lane and Henrici Road. Traffic Safety Corridors are established on roads with higher than expected crash rates over longer roadway segments.
Typical actions taken in these corridors include more enforcement, education efforts and engineering projects, usually smaller ones to improve roadway safety. Examples of simple engineering projects include work such as changing traffic signs out to new signs with more retroreflective sheeting to make the signs more visible, both day and night. Other work may include trimming of brush and enhancements to the striping such as raised pavement markers. In some cases, roadway improvements may be constructed such as turn lanes or shoulders.
Designation of the Safety Corridors is based upon review of crash data for both intersections and road segments. Potential safety corridors are evaluated and presented to the Traffic Safety Commission for consideration and selection.
Traffic Safety corridors typically remain for two to four years depending on the number of projects and how the crash data changes from year to year. In order to preserve the uniqueness and effectiveness of the Traffic Safety Corridors, the County has not had more than two active corridors at one time.
- Union Mills