I-5 M ST. TO PORTLAND AVE HOV

Tacoma, WA: Widening of Interstate 5 to allow for additional HOV lanes, which requires the replacement of Pacific and McKinley Avenue Bridges.

Project Details

The project widened northbound and southbound I-5 so both have four general-purpose lanes and one additional HOV lane from M Street to near L Street. To allow for the widened roadway, WSDOT has replace the Pacific Avenue and McKinley Way bridges over I-5, and built a new northbound I-5 bridge over the I-705 interchange. Other improvements include a new stormwater collection and treatment system, and replacement of all existing northbound and southbound pavement with new reinforced concrete. The project also replaces the illumination system and enhances the existing driver information systems including traffic cameras, variable message signs, and traffic data systems.

Project Specs

Location

Tacoma, WA

Owner

Washington State Department of Transportation

Completion

2017

Size

$50-$100m

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