Sammamish River Bridge Seismic Retrofit

The Project is currently in the design and permitting phase. The project consists of replacing and reinforcing portions of the bridge.  Construction activities will occur predominately beneath the bridge deck from either suspended work platforms or a barge.  


2019:  Jul. - Oct.

  1. Khin Gyi

    Senior Capital Project Engineer
    Phone: 425-806-6826

Image of map for the Sammamish Bridge replacement

Traffic Impacts

A pedestrian detour is anticipated for the duration of project. The walking trail under bridge north of the river will be closed during construction.