The city of Atlanta faced a critical problem in 2013 when the city’s Nancy Creek Tunnel failed due to years of sediment buildup. The tunnel is an 8-mile-long system that runs under northwest Atlanta, built to increase sewer capacity and handle storm water during heavy rains. The tunnel ends at the Nancy Creek Tunnel Lift Station, which pumps the wastewater
to the treatment plant above it. With heavy rains on the way at the time, the city faced potential violations and large fines from the U.S. Environmental Protection Agency if the tunnel could not handle the extra flow.
“The city of Atlanta was really in a predicament,” said Shane Rutledge, Superintendent for Western Summit Constructors, Inc. “The pumps were failing, and the city was really afraid that it was going to [overload] a sewage field upstream.”