Contractor Services

SAI was responsible for the emergency preliminary and final design for the replacement of the Mill Run Bridge over Mill Run Creek. This was a design-build contract with J.F. Shea Contracting that was necessary to replace a structurally deficient bridge that was restricted to one lane of traffic due to its poor condition.

Physical Features: 
  • 53' one-span prestressed concrete spread box-beam bridge over Mill Run Creek.
  • 547' of roadway approach (Two-lane rural minor arterial road).
Other Features: 
  • Traffic maintained via one lane-two way alternating traffic.
  • Temporary stream diversion.
  • Phased construction.
  • Incident management plan.
  • Signing and pavement marking plan.