Work to line aging sanitary sewer collection mains and city sewer laterals began Monday in the Bahama Shores and Coquina Key neighborhoods.
Part of Mayor Rick Kriseman‘s infrastructure plan, the $3.2 million lining project will help extend the life of sanitary sewer mains and prevent groundwater infiltration from entering the city’s sewage collection system. Depending on the weather, the project is expected to be completed by September.
St. Petersburg’s sewer system became the focus of controversy last year after the city dumped thousands of gallons of raw and partially treated sewage into Tampa Bay during two storms. City officials said the quantity of rain overburdened the system. Officials blamed an aging infrastructure that allowed rain- and groundwater to get into the sewer pipes. The cleaning and lining process is designed to cure the leaks and prevent rain- and groundwater from seeping into the system in the future.
Insituform Technologies, LLC, will reline 8-inch-12-inch sanitary sewer collection mains and city sewer laterals to homes in the affected neighborhoods using a cured-in-place pipe lining process, which involves little to no digging compared to the traditional “dig and replace” pipe repair. CIPP instead utilizes pump around pumping, cleaning the existing pipe, closed-circuit TV inspection, pipe-lining, and restoration of the right-of-way.
Residents will be informed by door hangers before the start of each phase of the project and are encouraged to keep water usage at a minimum during active construction. Work is expected to begin around 8 a.m. each day. Local access will be maintained during the project.