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Tumwater Traffic Team

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The Tumwater Traffic Team is a multidepartment team that focuses on transportation safety within the City. Members include experts from Community Development, Transportation and Engineering, Police, Fire, and the Executive Department. Solutions to traffic concerns may include enforcement, engineering, and education.  

Contact Us

If you have a question or a significant traffic concern in your neighborhood, email TrafficTeam@ci.tumwater.wa.us or call 360-754-4140. The Traffic Team will research the issues involved and recommend or implement the best solutions.

City of Tumwater Transportation Services

Percival Fish Passage Project Updates Aug. 5

Post Date:08/05/2026 2:55 p.m.

Work continues on the culvert conveying Percival Creek under Sapp Road.  

Completed work

  • Environmental protection measures were placed to safeguard the surrounding creek and natural resources throughout construction. 
  • The stream was rerouted around the worksite and thousands of fish and other aquatic life was safely relocated downstream. 
  • The old culvert was removed and the new, much wider and larger culvert was installed.   
  • The inside of the culvert was filled with material that mimics the existing streambed.

 Coming up next

  • Construction of the retaining walls at either end of the culvert will begin in early August.
  • The streambed will be reconstructed within the project limits. 
  • Stream access will be restored for aquatic life to pass through the culvert at the end of August.
  • Crews will continue with roadway restoration, grading, and other site improvements.

Road closure reminder

Sapp Road remains closed for motorists, bicyclists, and pedestrians between Crosby Boulevard and RW Johnson Blvd/Bush Mountain Drive. 

Find more project information and detour maps on our Percival project page.

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