Miami-Dade has finished a $77 million replacement of an aging sewage line under Government Cut that was considered so weak and brittle that it could have ruptured under normal working conditions.
The Miami-Dade County Water and Sewer Department had put the project on the fast track because of the suspect condition of pipe and the fact that it lay in the way of plans to dredge PortMiami’s main channel.
In 2012, an internal inspection by an engineering consultant revealed serious deterioration of a 54-inch sewage main that transports waste from Miami Beach, Surfside and Bal Harbour.
As part of the project, a new larger 60-inch pipe was installed deeper under the channel and a 20-inch water line also was upgraded to 24 inches. Both pipes will increase capacity for Miami Beach and other cities on the line and are expected to last 80 years.
In a release, WASD director John Renfrow said the project was completed on time and within budget and set a standard for plans to repair the county’s aging and leak-prone sewage system. Under pressure from the U.S. Environmental Protection Agency, Miami-Dade has agreed to spend $1.6 billion to upgrade its treatment plants and many major pipelines.