Project overview
WSDOT will construct a wetland mitigation site inside the Preston Mill Park/Jim Ellis Memorial Regional Park. Project work includes creating and improving wetlands and sensitive area buffers, grading, stream connections, new access roads, plantings, and other improvements. Most work will take place on King County Parks’ property while a small portion will take place on King County roads.
Timeline
Early 2026 - Summer 2026
Project status
Pre-construction
Funding
$4 million
What to expect
Most work will occur inside Preston Mill Park and will cause little, if any, restrictions to travelers. There may be some shoulder work on nearby roads with lane restrictions or flagging. Portions of the park will be temporarily inaccessible to park users during construction.
This project will construct a wetland mitigation site inside Preston Mill Park.
