The Offstream Reservoir Pump Station project called for a new facility that pumps raw water from Tampa Bay Water’s regional reservoir to the surface water treatment plant in Brandon, Florida. It consisted of vertical turbine pumps using 72-inch-diameter suction cans extended 35 feet into the ground. Also included was the construction of a 28-foot deep valve vault housing an 84-inch motorized butterfly valve and a 54-inch buffered check valve.
One of the complicated construction features was a tie-in to an existing 84-inch raw water main. The project also required extensive dewatering, as well as some excavation through existing limestone. The PCL team monitored ground water elevations 24 hours per day through a remote telemetry system.