Statewide Transportation Improvement Program (STIP)

Draft 2020-2023 Statewide Transportation Improvement Program (STIP)

Each year, the Washington State Department of Transportation develops the Statewide Transportation Improvement Program from local agency, metropolitan and regional transportation improvement programs. This compilation of prioritized transportation improvement projects is now ready for review and public comment.

The draft 2020-2023 STIP (pdf 9.44 mb) is a four-year program of multimodal transportation projects identified through state, metropolitan, regional, tribal and local agency planning processes. Projects identified as using Federal Highway Administration or Federal Transit Administration funds must be included in the STIP in order to authorize the expenditure of federal funds. More than 1,200 statewide transportation improvement projects using $3.4 billion in federal funds are included in the 2020-23 STIP.

The Washington State Department of Transportation will accept comments for the draft 2020-2023 STIP until 5 pm Tuesday, December 17th. 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 2019-22 STIP can be viewed using the Searchable Web Database below and a similar, searchable database of the 2020-23 STIP will be created in January 2020, following FHWA and FTA approval.

Written comments can be sent to: Nancy Huntley, WSDOT, P.O. Box 47390, Olympia, WA 98504-7390, email:, or by fax at 360-705-6822

2019-2022 STIP-Approved

The 2019-2022 Statewide Transportation Improvement Program (STIP) was approved in January 2019 as required per the Federal Transportation Act. Approximately 1,500 statewide transportation improvement projects utilizing $3.9 billion in federal funds are in the 2019-22 STIP statewide, representing Washington’s highest priority projects.


STIP Amendment Due Dates

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


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

It is critical that all submittals are forwarded to Nancy Huntley ( 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).

Previous STIP's