I-5 and Mounts Road to Steilacoom-DuPont Road Corridor Improvements

Client

Washington State Department of Transportation

Location

DuPont, Washington

Company

Guy F. Atkinson Construction

Completion Date

2026

Market

Roadways & Bridges

Delivery Method

Design-Build
I-5 and Mounts Road to Steilacoom-DuPont Road Corridor Improvements

The I-5 and Mounts Road project includes the construction of a split diverging diamond interchange at Steilacoom-DuPont Road, widening I-5 to add high occupancy vehicle lanes and auxiliary lanes in each direction.