Project Description

This project will remove and replace a culvert conveying Percival Creek under Sapp Road. The existing culvert is an undersized 5-foot diameter concrete culvert and the replacement culvert will be a 60 foot long by 19 foot wide by 8.5 foot high box culvert. Other project elements will include improved instream large wood and streambed material, roadway reconstruction, and additional multimodal facilities for the Percival Creek crossing.

Removing and replacing the undersized culvert will restore access to approximately 7,300 feet of mainstream habitat, 9,052 square feet of spawning habitat, and 882,750 square feet of rearing habitat in cool water for Chinook, chum, coho, steelhead, sea-run cutthroat, and resident trout.

Project news, April 2026

Project Funding 

The funds assembled for construction include a $2.1 million award from WSDOT's PROTECT program and a $257,550 RCO grant. City of Tumwater Storm Drain funds make up the remainder needed to construct this project.

Project Timeline 

Construction is expected to begin in June 2026 and will necessitate closing a portion of Sapp Road. Assuming no substantial delays due to unanticipated issues with the site, equipment, or weather, the project will be complete and Sapp Road reopened in early Fall 2026.

Project Personnel

City Engineer: Bill Lindauer, City of Tumwater
Construction Manager: Colby Fletcher, City of Tumwater
Project Inspector: Matthew Joseph, City of Tumwater
Project Administrator: Dena Hackney, City of Tumwater
Awarded Contractor: Active Construction, Inc.

Contact Us

Call the Project Info Line at (360) 252-5408, or email us to contact a staff member.

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