Siphon Project requires Burke-Gilman detour beginning July 6

 Burke-Gilman Trail detour begins week of July 6

Hello from King County –

King County’s contractor for the Fremont Siphon Replacement Project finished building the watertight ring around the tunnel launch shaft at the Fremont site. The ring will control groundwater to protect against settlement of nearby buildings, streets and utilities when the tunnel shaft is dug. Crews will begin digging out the shaft next week.

The contractor will also begin work to move a City of Seattle Combined Sewer Overflow drain pipe during the week of Monday July 6. To allow safe passage around the project site, the Burke-Gilman Trail will be detoured on to a temporary paved path, just north of the existing trail (see map below). The detour will be in effect through mid-August.

Construction equipment such as backhoes and dump trucks will occasionally cross the trail to the work area between the Ship Canal and Burke-Gilman Trail. Flaggers will direct trail traffic near the project area to keep trail traffic away from construction equipment working in the trail. Brief delays may occur. The detour route responds to community requests that trail traffic not be detoured to nearby streets.

Part of Fremont Canal Park south of the Fremont project site will be fenced and closed to the public during this phase of the project.

Slow down! For the safety of all trail users and construction crews, please slow down when approaching the site and follow the direction of signage and flaggers.