Owner: City of Des Moines, WA
Project Value: $8.5 million
Lowest Bidder: $4.715 mil
Funders/Stakeholders: City of Des Moines, Port of Seattle, Transportation Improvement Board, Highline Water District, King County Metro
Design: KPG, Inc.
Contractor: SCI Infrastructure
Functional Class: Arterial/Collector
Length: 0.42 miles (1.5 lane-miles)
Greenroads Version: v1.5
The Transportation Gateway Project is a multi-phase redevelopment of two critical arterials connecting Interstate 5 and State Route 99 with commercial and residential regions of Des Moines, Washington. Segment 2 of South 216th St. extends from 24th Avenue S to 18th Avenue S, and includes upgrades to the intersection with 24th Ave. The project consists of reconstruction and widening of the existing roadway, adding a lane in each direction as well as bike lanes and widened sidewalks to improve access for a variety of transportation modes. The reconstruction also provided an opportunity to perform utility upgrades on water, sewer, power, and fiber optic lines, and signal improvements. The corridor improvements aim to promote economic development and spur business and employment growth in an emerging region near SeaTac International Airport.
Project features centered around improved multimodal access and amenities for pedestrians, bicycles, transit, and freight on 216th Street, alongside sustainable construction practices and utility upgrades. Highlights include: