The Highway System Plan Non-Interstate Corridor Segment Analysis Reports describe: characteristics, assets, usage, needs and strategies, and proposed solutions for congested non-interstate highway segments. These corridor segments are identified in the 2007-2026 Washington State Highway System Plan.
Reports have been categorized into regions of Washington State. Please see the reports below for further details. For technical details about the criteria used for determining congested corridors, please see HSP Non-Interstate Congested Corridors Criteria.
Items linked below are in Adobe Acrobat .pdf format, which require the free Adobe Acrobat™ Reader.
- SR 9: SR 522 to SR 530 Arlington Vicinity (pdf 2.8 mb)
- SR 18, SR 167 (Auburn) to I-90, ARM 3.40 to ARM 28.41, SRMP 2.87 to SRMP 27.91 (pdf 2.3 mb)
- SR 19: SR 104 to SR 20 and SR 20: SR 19 to Ferry Terminal (pdf 1.4 mb)
- SR 20, South Oak Harbor to Sharpes Corner (pdf 1.9 mb)
- SR 167/SR 512, SR 512- I-5 (Lakewood) to SR 167 (Puyallup) and SR 167 - SR 512 (Puyallup) to I-405 (Renton) (pdf 4 mb)
- SR 518, SR 509 (Burien) to I-5 (Tukwila), ARM 0.00 TO ARM 3.42, SRMP 0.00 TO SRMP 3.81 (pdf 1.1 mb)
- SR 520, I-5 (Seattle) to SR 202 (Redmond Vicinity) ARM 0.00 to ARM 12.82, SRMP 0.00 to SRMP 12.83 (pdf 2.3 mb)
- SR 522, I-5 (Seattle) to SR 2 (Monroe), ARM 0.00 to ARM 24.68, SRMP 0.00 to SRMP 24.68 (pdf 2.7 mb)
- SR 524, I-5 (Lynnwood) to SR 522 (Bothell Vicinity), ARM 5.37 to ARM 14.68, SRMP 5.25 to SRMP 14.56 (pdf 584 kb)
- SR 532, Sunrise Drive to County Line (pdf 739 kb)
- SR 538, I-5 to Laventure Rd (pdf 405 kb)
- SR 539, I-5 to Kellogg Rd (pdf 484 kb)
- SR 542, McLeod Rd to Britton Rd (pdf 584 kb)
- US 101: SR 112 to SR 104 (pdf 950 kb)
- US 2, I-5 (Everett) to Goldbar, ARM 0.00 to ARM 27.87, SRMP 0.00 to SRMP 27.95 (pdf 2.2 mb)