Statewide Transportation Improvement Program (STIP)

The STIP is a four-year prioritized multimodal transportation program compiled of state, local, tribal and public transportation projects that include highways, streets, roads, rail, transit-hubs, park & rides, bridges, sidewalks, bike lanes, trails and safety.

The STIP is a calendar year document and is developed on an annual basis. The draft STIP is available for public review and comment in November. The final STIP is submitted to Federal Highway Administration (FHWA) and Federal Transit Administration (FTA) in December and approved in January. STIP amendments are submitted to FHWA and FTA for approval January through October and are available for public review and comment concurrently for 10 calendar days.

2026-2029 STIP - Approved

The 2026-2029 Statewide Transportation Improvement Program (STIP) was approved in January 2026 as required per the Federal Transportation Act. Approximately 1,100 statewide transportation improvement projects utilizing $5.3 billion in federal funds are in the 2026-29 STIP statewide, representing Washington’s highest priority projects.

2026-2029 STIP document

Detailed STIP information and explanations.

2026-2029 Table of Contents

The table of contents contains the various sections of the document.

Appendix

The appendix section shows the various appendices to the STIP document.

A. State self-certification statement (PDF 57KB)
B: Financial feasibility table (PDF 29KB)
C: STIP administration (PDF 45KB)
D: MPO/RTPO/WSDOT directory (PDF 386KB)
E: STIP format & project listing (PDF 76KB)
F: Source of funds (PDF 84KB)
G: Grouped projects (PDF 21KB)
H: Performance measures & targets table (PDF 24KB)
I: Annual obligation listing (PDF 11KB)
J: MPO/RTPO Maps (PDF 377KB)

The 12 Metropolitan Planning Organizations (MPOs) in Washington State are required to provide an annual listing of projects that had federal funds obligated in their areas for the previous calendar year. These listings are due by the end of March each year.

Benton-Franklin Council of Governments (BFCoG) (PDF 468KB)
Chelan-Douglas Transportation Council (CDTC) (PDF 4.2MB)
Cowlitz-Wahkiakum Council of Governments (CWCoG) (PDF 387KB)
Lewis Clark Valley MPO (LCV) (PDF 61KB)
Puget Sound Regional Council (PSRC) (PDF 642KB)
Skagit Council of Governments (SCoG) (PDF 755KB)
Southwest Washington Regional Transportation Council (RTC) (PDF 583KB)
Spokane Regional Transportation Council (SRTC) (PDF 2.2MB)
Thurston Regional Planning Council (TRPC) (PDF 83KB)
Walla Walla Valley MPO (WWV) (PDF 7.6MB)
Whatcom Council of Governments (WCoG) (PDF 707KB)
Yakima Valley Conference of Governments (YVCoG) (PDF 507KB)

STIP amendment due dates

The STIP amendment schedule provides consistency for WSDOT regions and MPOs to submit projects for inclusion into the STIP. STIP amendment due dates are the third Friday of every month. Local agencies and regional WSDOT Program Management personnel need to be aware of MPO timelines where applicable and work together to meet critical dates.

2026-2029

January: 1/16/26
February: 2/20/26
March: 3/20/26
April: 4/17/26
May: 5/15/26
June: 6/19/26
July: 7/17/26
August: 8/21/26
September: 9/18/26
October: 10/16/26

It is critical that all submittals are forwarded to Nancy Huntley (huntlen@wsdot.wa.gov) no later than the due date identified in the chart above, to be included in the monthly amendment process. Rural project information may be submitted directly to Nancy Huntley as well based on an agreed upon process with the affected RTPO.

Web-based STIP

STIP Training Manual (PDF 4.5MB)

The web based system allows local agencies to input their projects online once, for both the 6-year TIP and STIP. Local agencies will then submit their projects electronically to their respective Metropolitan Planning Organization (MPO) or Regional Transportation Planning Organization (RTPO).

April 2023 STIP Training is available as an online video:
https://wsdot.wa.gov/publications/fulltext/localprograms/STIP/2023-Training/story.html
Download presentation (PDF 520KB)

Previous STIPs

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