This project replaces and widens the existing parallel I-20 bridges over the Augusta Canal and Savannah River, as well as widening and reconstructing portions of the I-20 roadway. Additional project components include dual left-turn lanes, a dedicated right-turn lane, roadway widening, a new traffic signal, and utility adjustments. Superior Construction is coordinating closely with both GDOT and SCDOT, as this project crosses state lines.

  • Location Columbia County, Georgia
  • Owner Georgia Department of Transportation
  • Delivery Method Design-Build
  • Completion Year In Progress
  • Contract Value $72.1 million

Project Highlights

  • 4 bridge replacements
  • 1,278-ft long twin structures over the Savannah River
  • 384-ft long twin structures over the historic Augusta Canal
  • 19,000 CY of structural concrete
  • 21,600 LF of prestressed concrete girders
  • 1.8 miles of interstate reconstruction & widening
  • 107,000 SY of concrete pavement
  • 1 new signalized intersection