TAMPA, Fla. – After four years of designing and building a wastewater project to replace an aging 54″ force main, crews are nearing completion of the infrastructural marvel.
A pipeline extending approximately 13,700 linear feet now runs from the Howard F. Curren Advanced Wastewater Treatment Plant and is connected to a pipeline under South Franklin Street. All wastewater flow from the force main on Harbour Island has been diverted to the new one.
Formally called a ‘microtunnel,’ the new 78″ diameter pipeline runs from the wastewater treatment plant at Port Tampa Bay to Cotanchobee Park. Crews drilled 60 feet below the water surface to directionally drill the pipeline under Tampa Bay.
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The microtunnel transports 30% of Tampa’s wastewater, or 15 million gallons per day. The $83 million project is North America’s third-largest microtunnel of its kind and was funded through the City of Tampa’s PIPES Program (Progressive Infrastructure Plan to Ensure Sustainability).
“Tampa’s Wastewater Department is hitting major milestones as we work toward updating and upgrading our infrastructure,” said Eric Weiss, Director of Wastewater for the City of Tampa. “While we are usually out of sight and out of mind, it is critical to keep investing in our infrastructure to continue to provide both reliable and sustainable services now and for future generations.”
In March 2024, construction began to connect the new pipeline to the existing pipeline in Franklin and Water Streets. A section of Franklin and Water Streets was closed to facilitate this work. Water Street has since reopened, and restoration of Franklin Street has begun. The completion date for this restoration is Friday, June 7, 2024, weather permitting.
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