Converting the functionally obsolete cloverleaf interchange connecting I-70 and U.S. Route 19 into Pennsylvania’s first diverging diamond interchange required a traffic control plan to minimize disruptions to the tens of thousands of motorists who travel through the area daily.
The project called for a major traffic change, replacing a congested signal-controlled intersection in a primary commercial corridor with a three-lane roundabout.
Replacing the concrete open spandrel arch bridge that had served as Pittsburgh’s eastern gateway for nearly a century was more challenging than the original construction.
Located 25 miles north of Fort Worth in Haslet, this intermodal railroad project involved track construction, pavement, ditch grading and placement of culverts.
Using innovative techniques and careful planning and sequencing, the project team replaced the BNSF railway bridge over busy I-235 with minimal traffic disruptions and within two-thirds of the contract time.
The retaining wall along Union Turnpike was reconstructed through the portion of the road adjacent to Grand Central Parkway and Jackie Robinson Parkway between Austin Street and 126th Street.
Originally built in 1939, the Kosciuszko Bridge is a 1.1-mile segment of the Brooklyn-Queens Expressway over Newtown Creek between Morgan Avenue in Brooklyn and the Long Island Expressway Interchange in Queens.