Bridge Rehabilitation and Replacement

SAI was responsible for the preliminary engineering, final design, and construction consultation of approach roadway reconstruction on S.R. 0119 and S.R. 0310, and the replacement of a structurally deficient bridge over Elk Run in Punxsutawney, Pennsylvania.

Physical Features: 
  • 92'- 6" two-span continuous steel multi-girder bridge over Elk Run.
  • Deck consists of two 11' lanes, with an 8' center lane, a 4' shoulder, 5' left sidewalk, and a 5' right shoulder that comprises approximately 3,627 sq. ft. of deck area.
  • 3,250' of roadway approach on a regional two-lane arterial town/village/neighborhood with an ADT of 12,471.
Other Features: 
  • Structure is at a 75 degree skew to closely align the substructures with the stream channel.
  • Substructure units consist of pile-supported integral abutments and a reinforced concrete wall pier on spread footing.  A retaining wall was required at abutments 1 and 2 to retain the adjacent railroad.  The integral abutment structure lengthened the S.R. 0119 bridge and required the existing retaining wall, which supports the railroad, to be partially removed.  The wall and foundation type is a soldier pile wall with cast-in-place lagging.
  • Traffic maintained via detour during bridge construction.
  • Scour analysis and hydraulic/hydrologic studies.
  • Demolition plans.
  • Erosion and sedimentation control plan.
  • Permit acquisition and agency coordination.
  • Utility design and coordination.