Located in Charleston, the Port Access Road (PAR) is a complex roadway and bridge interchange project that provides direct access from I-26 to the South Carolina Ports Authority’s Hugh K. Leatherman Terminal. The project consists of the new fully directional interchanges on I-26, connector bridge from I-26 to the Hugh K. Leatherman Terminal, extension of Stromboli Avenue, and connector roads to Bainbridge Avenue and Tidewater Drive.

As a major subconsultant, our team provided designs for local roadways and intersections, stormwater, bridge scour, and three bridges with complex seismic design. D|F also conducted field surveys, led the preparation of the Environmental Compliance Manual and three-phased land disturbance permit, provided right-of-way services, and performed utility and railroad coordination.


  • Bridge Design
  • Civl Engineering
  • Consultant Engineering
  • Hydrologic & Hydraulic Design & Modeling
  • Permitting
  • Project Management
  • Railroad Coordination
  • Right-of-Way Coordination
  • Seismic Design
  • Traffic Control Coordination & Design
  • Transportation Engineering
  • Utility Coordination