Studies

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Planning Studies List

The statewide map of Planning Studies shows individual counties and allows the user to select an individual study or county for more detail.


 Route(s)
Planning Study Title
US 2 2007 US 2 - Snohomish to Skykomish (Route Development Plan) (completed)
SR 3 2005 SR 3 (at SR 305) to SR 104 Corridor Planning Study Executive Summary (pdf 233 kb)
SR 3 (includes US 101 to SR 102 and SR 16 to SR 3) 2008 Bremerton Economic Development Study
I-5 2005 Fort Lewis Congestion Study Summary (pdf 65 kb)
I-5 2008 I-5 Conway to Cook Master Plan
SR 7 2006 SR 7 Corridor Planning Study (Route Development Plan) - study examines SR 7 between US 12 in Morton and SR 706; SR 706 and SR 702; SR 702 and SR 507
SR 9 2008 SR 9 Corridor Planning Study (Route Development Plan) - study examines SR 522 to Schloman Road Vicinity
US 12/US 101 1999 US 101 to I-5 Corridor Planning Study Executive Summary (pdf 229 kb)
SR 28 2006 SR 28 - Wenatchee Eastside Corridor Planning Study
I-90 2006 I-90 Bellevue to North Bend Corridor Planning Study - Eastgate to 465th
US 97 2003 US 97 Corridor Planning Study Executive Summary (pdf 82 kb) - study examines US 97 from SR 970 to British Columbia, Canada (includes portions of US 2 and SR 20)
SR 99 1997 North Corridor (Seattle to Shoreline) Planning Study (completed March 2003)
SR 99 2003 SR 99 North/Aurora Avenue North Corridor Planning Study (pdf 498 kb) - study examines SR 99 from the North end of the Battery St. Tunnel to North 145th St.
SR 99 2006 Federal Way to Tukwila at SR 599 Corridor Planning Study (pdf 499 kb)
US 101 1997 US 101 Washington Coastal Corridor Management Plan (pdf 2.3 mb)
US 101 2001 US 101 and Lynch Road Intersection Safety Improvement Study (pdf 2.3 mb)
US 101 2001 Port Angeles Alternative Study Interim Report (pdf 365 kb)
US 101 2007 US 101 Regional Circulation Project (Aberdeen Vicinity)
SR 104 2001 Environmental Impact Statement-NEPA Pilot Project Summary (pdf 305 kb) - study examines SR 104 from US 101 to Kingston Ferry Terminal
SR 105 1998 SR 105 Corridor Management Plan (pdf 3 mb) - plan examines SR 105, which connects Grays Harbor and Willapa Bay on Washington's west coast
SR 160/SR 16 1998 SR 160/SR 16 Interchange to Southworth Ferry Terminal Corridor Planning Study (Route Development Plan) (pdf 34 kb)
SR 161 1990 SR 161 (south King County) Corridor Planning Study (pdf 385 kb)
SR 161 1997 SR 161 (234th St. East to King County Line) Corridor Planning Study Summary (pdf 18 kb)
SR 161 2003 SR 161 (between SR 7 and 234th St. in Graham) Corridor Planning Study (Route Development Plan) Executive Summary (pdf 504 kb)
SR 162 1997 SR 162/SR 410 Interchange to SR 165 Corridor Planning Study (Route Development Plan) (pdf 18 kb)
SR 164 2008 SR 164 Corridor Planning Study
SR 167 2008 SR 167 Valley Freeway Corridor Planning Study
SR 169 1990 SR 169 (140th Way SE in Renton to I-405) Corridor Planning Study (Route Development Plan) (pdf 78 kb)
SR 169 1993 SR 169 Enumclaw to 140th Way SE in Renton Corridor Planning Study (Route Development Plan) (pdf 148 kb)
SR 169 2007 SR 169 Corridor Planning Study (completed December 2007)
SR 202 2006 SR 202 (Sahalee Way to Duthie Hill Road) Corridor Planning Study
SR 276 2007 SR 276 Planning Study (North Pullman Bypass) (completed February 2007)
SR 291 2006 SR 291 Corridor Planning  Study (Route Development Plan) (completed August 2006)
US 395 2002 US 395 (Spokane to Stevens County Line) Corridor Planning Study (Route Development Plan) (completed March 2003)
SR 410 1997 SR 410/SR 167 Interchange to Pierce/King County Line) Corridor Planning Study Summary (pdf 27 kb)
SR 507 1998 SR 507/Lewis County Line to SR 7 Corridor Planning Study Summary (pdf 28 kb)
SR 510 1997 SR 510/I-5 Interchange to SR 507 Corridor Planning Study (pdf 24 kb)
SR 518 2002 SR 518 Corridor Planning Study (pdf 12 mb)
SR 518 2007 SR 518 Interchange at International Boulevard/South 154th St. Alternatives Analysis (pdf 337 kb)
SR 527 1994 SR 527 (SR 522 to I-405) Corridor Planning Study (pdf 664 kb)
SR 527 2006 SR 527 (164th St. SE at Mill Creek to I-5) Corridor Planning Study (pdf 89 kb)
SR 532 2001 SR 532 (E. Camano Drive to I-5) Corridor Planning Study (pdf 1 mb)
SR 900 1993 SR 900 (Duvall Ave. in Renton to Issaquah) Corridor Planning Study (pdf 3.5 mb)
SR 904 2003 SR 904 (Cheney to Four Lakes Vicinity) Corridor Planning Study (Route Development Plan)

 

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