The new access ramp will provide a direct connection from the SR 520 offramp to new arterials, Hopper Street, Lumiere Street, and Shen Street. The upgraded interchange will create an improved offramp alignment that will ease traffic flow. The scope of work consists of constructing a ramp with a 125-foot long cut and cover precast tunnel. The tunnel structure consists of a cast-in-place lower structure topped with a three-sided lid. The project will also include pedestrian improvements in the form of new sidewalks and ramps on 148th Ave. and the new arterials.
“We are happy to continue our longstanding relationship with WSDOT,” said Blake Ambler, Granite senior project manager. “The improved 148th Ave. Interchange will be a key transportation asset for the cities of
The project is anticipated to start in September 2021 and projected to be completed in November of 2022.
Granite is America’s Infrastructure Company™. Incorporated since 1922, Granite (NYSE:GVA) is one of the largest diversified construction and construction materials companies in
Erin Kuhlman 831-768-4111
Wenjun Xu - 831-761-7861