The Georgia Department of Transportation (GDOT) was recognized by the Design-Build Institute of America (DBIA) last week for its Courtland Street Bridge Replacement project, for exemplary work on a small project.
The original Atlanta bridge was 111 years old, rising over Decatur Street and rail lines owned by MARTA and CSX. Its replacement cost $21 million and was originally supposed to take at least 18 months, but its builders managed to complete it in half that time using design-build and accelerated bridge construction delivery methods. Further, workers were given 180 days from the closure date to remove the old bridge, build its replacement, and reopen the street to traffic — a feat they substantially completed within 152 days.
“Georgia DOT is honored to receive this award from such an outstanding organization that is highly valued in our industry,” GDOT Commissioner Russell R. McMurry, P.E. said. “The completion of the Courtland Street Bridge strengthens downtown Atlanta – an economic engine of Georgia.”
The bridge acts as a major connection point for Atlanta commuters downtown. GDOT estimates it sees traffic from thousands of motorists, including more than 30,000 students and staff at Georgia State University. To further reduce congestion in the area, the new bridge also added a 12-foot bus lane and expanded sidewalks. Workers accelerated efforts through a number of processes, including accelerated concrete mixes, precast concrete beams, and specialized equipment.