Top 500 Sourcebook: Big Doin's in Big Dallas on I-635 Upgrade
The Interstate 635 LBJ Freeway in Dallas is set to undergo a $1.7-billion upgrade to improve capacity, safety and operational efficiency in a corridor that currently handles more than 200,000 vehicles per day. AECOM Technical Services Inc., is the primary designer for the design-build project, which is being led by a joint venture of Fluor and Balfour Beatty. The project team will widen and reconstruct 11.2 miles of highway, increasing total width to 12 lanes. Elements include adding a general-purpose lane in each direction, making improvements to existing tolled express lanes and rebuilding the freeway’s interchange with Interstate 30. The project also includes the addition of continuous frontage roads along the segment and intersection to improve local traffic flow and freeway access. A bridge will also be incorporated into the Skillman Road/Audelia Street intersection adjacent to the freeway.
HDR and Mott MacDonald
Hampton Roads Bridge/Tunnel Expansion
The Virginia Dept. of Transportation has finalized funding agreements for the largest project in the agency’s history—the $3.8-billion expansion of the Hampton Roads Bridge-Tunnel. HDR and Mott MacDonald are lead designers for the Dragados USA-led design-build team that will add two bored two-lane tunnels adjacent to existing 7,500-ft-long tubes that opened in 1957 and 1976. Up to 100,00 vehicles per day move through the tunnels. Scheduled for completion in 2025, the project will also widen the Interstate 64 approaches to the crossing in Hampton and Norfolk.
First Coast Expressway
A two-project, 22-mile extension to the First Coast Expressway toll road in Clay County, Fla., will provide the Jacksonville area with congestion relief. RS&H designed the $507-million design-build project between state Route 21 and the St. John’s River and serves as owner’s representative for the Florida Dept. of Transportation.
Seattle Light Rail
In Seattle, Sound Transit has selected WSP USA to perform design-build project management services for the Downtown Redmond Link Extension, the East Link light-rail transit corridor’s final segment.
Extending from the Redmond Technology Station currently under construction, the 3.4-mile double-track project will include both elevated and at-grade sections as well as two stations and a parking garage.
CTA Red and Purple Line
Stantec is leading phase 1 design services for Chicago Transit Authority’s $2.1-billion Red and Purple Modernization Program, the largest capital improvement project in the agency’s history. The design-build project will reconstruct and modernize nearly two miles of elevated tracks, including bridges and support structures along Chicago’s busiest transit corridor.