Overview
The I-5 - Conway to Cook Interstate Master Plan (pdf 7.16 mb) analyzed current and future traffic conditions on I-5 and made recommendations for improvements to the interstate, including interchanges and connected local roads from SR 534 in Conway (exit 221) to the Cook Road Interchange (exit 232) in Skagit County. The Plan includes a list of short- and long-term improvements to address safety problems and help relieve congestion through the year 2035. Improvements will be implemented as funding becomes available.
 | Improves Safety
The Master Plan identifies improvements to I-5 and the on- and off-ramps from SR 534 to Cook Road. Improving this stretch of I-5 will enhance safety and truck mobility by providing more room for vehicles to gain speed or slow down when entering and exiting I-5.
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 | Relieves Congestion
The Master Plan identifes improvements that respond to growth and economic development in this area of Skagit County. Improving I-5 and the on- and off-ramps will allow this stretch of interstate to carry more people, freight and vehicles efficiently as the region continues to grow.
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 | Protects Environment
While reconstructing on- and off-ramps, WSDOT upgrades culverts and ditches to help minimize erosion during large storms. WSDOT builds stormwater treatment facilities to filter contaminants out of highway stormwater.
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Partnerships & Cooperation
We collected input from local officials, community members, drivers and residents. We also held open houses, had traveling displays at local venues, attended city and county council meetings, held focus group meetings and worked with the local media to provide updates. WSDOT also worked with the Swinomish, Lummi, Samish and Upper Skagit Tribes as the Master Plan was completed.
Funding
Contact Us
How can I get more information?
Project Manager, Tom Stacey
1043 Goldenrod Road, Suite 101
Burlington, WA 98223
Phone: 360.757.5981
Email: StaceyT@wsdot.wa.gov
Communications, Dustin Terpening
1043 Goldenrod Road, Suite 101
Burlington, WA 98223
Phone: 360.757.5997
Email: TerpeniD@wsdot.wa.gov
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