US-based infrastructure company Granite has secured a contract worth $28m from the Washington State Department of Transportation (WSDOT) for the interchange access ramp project in downtown Redmond.

The scope of work under the contract involves construction of the 148th Ave. NE Interchange Access Ramp with a 125-foot-long cut and cover precast tunnel. The tunnel includes a cast-in-place lower structure topped with a three-sided lid.

Pedestrian improvements such as new sidewalks, ramps on 148th Ave. and the new arterials will also be included in the project.

Granite stated that the new access ramp will provide a direct access from the SR 520 offramp to Hopper Street, Shen Street, new arterials and Lumiere Street.

It will also create an improved offramp alignment which will ease traffic flow.

Granite senior project manager Blake Ambler said: “We are happy to continue our longstanding relationship with WSDOT.

“The improved 148th Ave. Interchange will be a key transportation asset for the cities of Redmond and Bellevue that will improve traffic flow and pedestrian safety.”

Work on the project is expected to commence in September this year with completion anticipated in November next year.

The company expects the contract award to be included in its second quarter committed and awarded projects.

Recently, Granite secured a $18m contract for the road reconstruction project in Salt Lake City, Utah.

The scope of work under the contract involved complete reconstruction of 300 West from 900 South to 2100 South.

The project design features a fully protected two-way bike lane and the incorporation of greenery-filled ‘parkstrips’ to aid in stormwater management as well as providing a buffer from traffic for pedestrians.


Granite secures $28m contract for interchange access ramp project in Washington, US. Credit: Granite Construction Inc.