Highway Design

SAI was responsible for preliminary and final roadway and traffic engineering design for the three phase widening and reconstruction of Broadway Avenue in Mercer County, Pennsylvania.

Physical Features: 
  • Two miles of three-lane urban arterial roadway reconstruction.
  • One new signalized intersection and three replacement signals.
Other Features: 
  • Analysis of existing sewer system outfalls for condition and capacity.
  • Significant commercial and residential access coordination.
  • Extensive utility coordination to provide corridors for their relocated facilities.
  • Warrant analysis and highway capacity analysis.
  • Traffic control plan.
  • Signing and pavement marking plan.
  • Lighting design.
  • Right-of-way, stormwater management, and erosion and sediment pollution control plans.
  • Phased construction with partial detours.