Sound Transit Board approves largest Northgate Link Extension construction contract

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It's official! On July 25th, Sound Transit's Board approved a $440 million contract with JCM Northlink LLC to mine 3.4 miles of twin light rail tunnels between Husky Stadium at the University of Washington and the Maple Leaf Portal near Northgate. In addition to the twin tunnels, the contract includes digging the underground stations in the Roosevelt and U District neighborhoods. 

This is the largest construction contract Sound Transit has ever awarded.

JCM Northlink LLC is a joint venture formed by Jay Dee Contractors of Livonia, MI, Frank Collucio Construction Company of Seattle and Michaels Corporation of Brownsville, WI. JCM recently completed mining the light rail tunnels between downtown Seattle and Capitol Hill Station as part of Sound Transit's University Link project.

The work is scheduled to begin this fall and last just over four years. We'll have more details about the construction work and schedule after the contract is finalized.