UPDATE: 5 p.m. Tuesday August 15: HEADS UP! The closure of westbound SR 96 (and eastbound down to one lane) near McCollum Park has been extended to 4:30 a.m. Friday, August 18 in order to completely pave back the westbound lanes and place temporary barrier for safety purposes. Please plan ahead by continuing to plan for longer than usual travel times along the detour route. We appreciate your patience as we need a bit more time to get closer to wrapping up the last major closure for this project.

ORIGINAL POST: Beginning at 7 p.m. Thursday, August 10 until 1 a.m. Tuesday, August 15 all lanes of westbound SR 96/128th St SE just west of Dumas Rd/Elgin Way (by McCollum Park) near Mill Creek and one lane of eastbound SR 96 will close for fish passage construction. A single eastbound lane in this area will be left open. A 6.5-mile signed detour for westbound SR 96 traffic using southbound SR 527, westbound 164th St SW and I-5 will be in place.

A map showing, marked in orange, a closure of westbound State Route 96/128th Street Southwest near the McCollum Park and Ride entrance in Mill Creek. The detour route, marked by blue lines and arrows, involves using southbound State Route 527, westbound 164th Street Southeast and Interstate 5.

While this will be the last of three closures of westbound SR 96 during this project to install a new fish passage along North Creek, it’s not the end of work.

From 1 a.m. Tuesday, August 15 through 4:30 a.m. Friday, August 18 three lanes of SR 96 will be closed, meaning a single lane in both directions of SR 96 will be left open. Despite there being some lanes open, travelers should expect lengthy delays through the work zone. All of this work is part of the SR 96 - North Creek Fish Passage project, where we’re building a new fish passage opening almost 2.5 miles of additional habitat for native fish. Additional information can be found in the comment section below.

WSDOT contractor crews began excavation and installing temporary shoring piles in preparation for the installation of a new North Creek fish passage under State Route 96 in July. That culvert will be installed over the between August 10-18.