Masontown Bridge

Location: Masontown, PA
Owner: PennDOT, District 12
General Contractor: Brayman Construction Corp.
Value: $49.8 Million
Date Complete: October 2014

This project was for the replacement of an existing eleven-span, two-lane steel truss bridge with a new 1,700 ft, four-lane, seven-span plate girder bridge. Piers 3 and 4 were founded on 9 ft diameter caissons. To aid construction, installation of two cofferdams in the Monongahela River were required. All other bridge substructure units were founded on smaller diameter caissons of varying sizes. In all, there was approximately 11,000cy of structure concrete.

The other defining structure associated with the bridge is a 327 ft long reinforced earth wall which supports the roadway approach at Abutment 2. Construction was staged so that the existing bridge remained open to traffic; no detours were required.

View the controlled demolition of the old Masontown Bridge truss below.

 

View the controlled demolition of the Masontown Bridge Pier below.