Pennsylvania Avenue – Retaining Wall


  • Survey
  • Erosion/Sedimentation Control Plans
  • Sidewalk Design
  • Permitting
  • ADA Curb Ramps and Crosswalks
  • Roadway Design
  • Design of two Retaining Walls
  • Design of Traffic Barrier that top the wall
  • Traffic Control
  • Coordination with Adjacent Railroad Owner
  • Coordination with Adjacent Property Owners
  • Management of Geotechnical Subconsultant
  • Project Management, including coordination with owner and funding partners
  • Bidding
  • Construction Inspection
  • Construction Consultation


Mt. Union Borough Council, Huntingdon County

Project Details

This project included removing failing and collapsed stone masonry retaining walls and construction of new retaining walls to support a two-block section of the southern lane of Pennsylvania Avenue.  In their place, galvanized steel walls with reinforced concrete facing were designed and constructed.  The walls, located between Franklin and Jefferson Streets, total more than 1,000’ long and have a maximum height of 10’.

To match the context of the Mount Union Historic District and the adjacent East Broad Top Railroad National Historic Landmark, the walls include concrete form liners, were stained to match the appearance of the original walls and display a black coated traffic barrier which aesthetically blends with the railroad and neighborhood setting.


Keller Engineers has been an extremely valuable asset for us in the development/construction of our store sites by providing accurate and timely structural and site development drawings and answers to related questions.  Their response and turn-around time to the Sheetz Store Development Department has been outstanding. We have no hesitation in turning to Keller Engineers for our store structural and site development needs. Joe S. Sheetz, Executive Vice President, Finance & Store Development Sheetz Corporation

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