Statewide Transportation Improvement Program (STIP)

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.

Draft 2025-2028 Statewide Transportation Improvement Program (STIP)

Each year, the Washington State Department of Transportation develops the Statewide Transportation Improvement Program from local, metropolitan planning organization (MPOs), regional transportation planning organizations (RTPOs) and county transportation improvement programs (TIPs). This compilation of prioritized transportation improvement projects is now ready for review and public comment.

The draft 2025-2028 STIP (PDF 11MB) is a four-year program of multimodal transportation projects identified through state, metropolitan, regional, tribal, and local agency planning processes. 

Projects that use Federal Highway Administration or Federal Transit Administration funds must be included in the STIP to authorize the expenditure of federal funds. Also, included are regionally significant projects funded through the Washington State Legislature Connecting WA and Movie Ahead Washington transportation packages. More than 1,100 statewide transportation improvement projects using $4.6 billion in federal funds are included in the 2025-28 STIP.

The Washington State Department of Transportation will accept comments for the draft 2025-2028 STIP until 5 pm Wednesday, Dec. 18. WSDOT will send any comments it receives to the respective local agency, metropolitan or regional planning organization for their consideration.

The comment period is the final step of a public engagement process that began locally during development of the individual transportation improvement programs. The collaborative effort between WSDOT, local agencies, metropolitan and regional transportation planning organizations ensures projects are consistent with local, regional, and state long-range plans.

Some county projects are not included in the draft STIP, as counties are required by state law to complete their transportation improvement programs by the end of December, so those projects are amended into the STIP in January.

The current 2024-27 STIP can be viewed using the Searchable Web Database below and a similar, searchable database of the 2025-28 STIP will be created in January 2025, following FHWA and FTA approval.

Written comments can be sent to: Nancy Huntley or Steve Ahlsten, WSDOT, P.O. Box 47390, Olympia WA 98504-7390, or by email at Hqlpstip@wsdot.wa.gov.

2024-2027 STIP - Approved

The 2024-2027 Statewide Transportation Improvement Program (STIP) was approved in January 2024 as required per the Federal Transportation Act. Approximately 1,200 statewide transportation improvement projects utilizing $3.8 billion in federal funds are in the 2024-27 STIP statewide, representing Washington’s highest priority projects.

• 2024-2027 STIP Searchable Web Database
• Full List of 2024-2027 STIP Projects (PDF 23MB)
• Washington Tribal TIPS (PDF 1.4MB)
• Washington Western Federal Lands TIP (PDF 135KB)
• 2024-2027 STIP Amendment Status (PDF 18KB)

2024-2027 STIP document

Detailed STIP information and explanations.

2024-2027 Table of Contents

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

1. Introduction (PDF 200KB)
2. Organization of the STIP (PDF 200KB)
3. Financial plan and resources (PDF 200KB)
4. Operation and maintenance (PDF 200KB)
5. Consistency with long-range
   statewide & metropolitan transportation plans (PDF 200KB)
6. Performance measures (PDF 200KB)
7. Consultation & selection process (PDF 200KB)
8. Community engagement (PDF 200KB)
9. STIP amendments & administrative modifications (PDF 200KB)

Appendix

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

1. State self-certification statement (PDF 55KB)
2. Financial feasibility table (PDF 30KB)
3. STIP administration (PDF 200KB)
4. MPO/RTPO/WSDOT directory (PDF 280KB)
5. STIP format & project listing (PDF 60KB)
6. Source of funds (PDF 60KB)
7. Grouped projects (PDF 20KB)
8. Performance measures & targets table (PDF 25KB)
9. Annual obligation listing (PDF 12KB)

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 580KB)
• Chelan-Douglas Transportation Council (CDTC) (PDF 137KB)
• Cowlitz-Wahkiakum Council of Governments (CWCoG) (PDF 497KB)
• Lewis Clark Valley MPO (LCV) (PDF 120KB)
• Puget Sound Regional Council (PSRC) (PDF 817KB)
• Skagit Council of Governments (SCoG) (PDF 827KB)
• Southwest Washington Regional Transportation Council (RTC) (PDF 959KB)
• Spokane Regional Transportation Council (SRTC) (PDF 1.5MB)
• Thurston Regional Planning Council (TRPC) (PDF 107KB)
• Walla Walla Valley MPO (WWV) (PDF 680KB)
• Whatcom Council of Governments (WCoG) (PDF 9.1MB)
• Yakima Valley Conference of Governments (YVCoG) (PDF 615KB)

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.

2025-2028

• January: 1/17/25
• February: 2/21/25
• March: 3/21/25
• April: 4/18/25
• May: 5/16/25
• June: 6/20/25
• July: 7/18/25
• August: 8/15/25
• September: 9/19/25
• October: 10/17/25

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 STIP's

• 2023-2026 STIP (PDF 30MB)
• 2022-2025 STIP (PDF 30MB)
• 2021-2024 STIP (PDF 24.7MB)
• 2020-2023 STIP (PDF 19.3MB)