Existing Public Water and Wastewater Large Transmission Mains Water The Palm River Redevelopment Area has several water transmission lines within its boundaries including the following: • US Highway 301 S – 36” ductile iron water main (installed 1990/1995) • South 50th Street – 24” cast iron water main (installed 1957) • Madison Avenue, Pendola Point, and 78th Street – 16” ductile iron water mains (installed in 1981, 2001, and 1975, respectively) The ductile iron pipes are within their lifespan of 50 years, but the cast iron piping on South 50th Street is reaching the end of its life expectancy of 80 to 100 years. It is recommended to further evaluate the remaining useful life of the cast iron pipe water main. There are 12 interconnects between the Hillsborough County and the City of Tampa water systems along the north edge and within the study boundary. The interconnects serve as redundancy for the potable water systems and emergency backup. Figure 16 is a map of the existing water distribution infrastructure in this study area. Wastewater The redevelopment area has several wastewater force mains within its boundaries including: • Falkenburg Road – 20” PVC force main south of Causeway, 24” force main north of Causeway (Hillsborough County) • Progress Boulevard – 16” PVC force main (Hillsborough County) • US 301 – 12” ductile iron force main (City of Tampa) • Madison Avenue – 6” PVC force main (Hillsborough County) • CSX track – 8” PVC force main (City of Tampa) According to County GIS records, most of these force mains were installed in the 1990s or later. Ductile iron and PVC pipes have an expected useful life of 50 to 60 years thus these pipes are assumed to be in fair condition and should have adequate remaining useful life. There is a total of 11 lift stations owned by the County and 3 lift stations owned by the City of Tampa within the eastern portion of the study area. There are residential gravity sewer mains that connect to lift stations, which connect to force mains within the eastern half of the study area, but wastewater infrastructure is minimal in the western half of the area. Figure 17 is a map of the existing wastewater infrastructure in this study area.
40 Palm River Redevelopment Area Infrastructure Assessment Hillsborough County
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