Bridge Rehabilitation and Replacement

SAI was responsible for the preliminary and final design of the bridge rehabilitation; consultation during construction; and shop drawing review of this major river crossing.

Physical Features: 
  • 2,118' 12-span steel deck truss and girder bridge over the Monongahela River and various railroads.
  • 1,000' roadway approach reconstruction.
Other Features: 
  • In-depth inspection and load ratings.
  • Widening study.
  • Redecking and minor widening.
  • Navigation lighting replacement.
  • Replacement of east and west abutments.
  • Seismic retrofit of bearings.
  • Substructure repair and reconstruction.
  • Reconstruction of approach ramps in Brownsville, PA.
  • Redundancy analysis of three-span steel truss.
  • Slope flattening on west approach.
  • Strengthening of truss, girders, and floor system.