I-76 Allegheny River Bridge, Oakmont, Pennsylvania

SEGMENTS, FALL 2009, VOL. 54

As the next major golf tournament at Oakmont Country Club draws near, the new Allegheny River Bridge (Figs. 10 and 11) for the Pennsylvania Turnpike Commission continues to make great progress. Construction of the twin 2,350' structures by Walsh Construction began in May 2007 with the goal of a safer, more pleasing experience for Turnpike customers. The 532' main span will be Pennsylvania’s longest concrete segmental span. This environmentally sensitive bridge is being built using concrete segmental balanced cantilever construction to keep rail, vehicular, and marine traffic operational. The long open spans also minimize impacts to river habitats and archaeological areas below the bridge.

Project Details

Designer:

FIGG
 

Owner:

Pennsylvania Turnpike Commission
 

Contractor:

Walsh Construction
 

Construction Engineer:

T.Y. Lin International
 

Construction Engineering Inspection:

McTish with FIGG
 

Form Travelers for Cast-in-Place Segments:

NRS
 

Post-Tensioning Materials:

Schwager Davis, Inc.
 

Stay Cables:

Schwager Davis, Inc.
 

Epoxy Supplier:

Sika Corporation
 

Prepackaged Grout:

Sika Corporation