Sulphur Springs Water Tower is a landmark of Tampa, Florida. It stands 214 feet (65 m) tall, with a foundation 45 feet (14 m) deep which makes it visible from nearby Interstate 275 and much of the rest of Sulphur Springs. It's located in the historic district of Sulphur Springs. The structure is constructed from poured concerete (cement is an ingredient of concrete, not a stand-alone building material) using railroad rails for "rebar"; the walls are eight inches (203 mm) thick with a buttressed base on solid rock. "Concrete was poured into forms that were raised by yokes and jacks -- 10 feet (3.0 m) went up a day. The tower rests on rock, has cantilever foundation, and with the buttresses will be rather a difficult job to ever destroy," wrote Poole. When it was operational it stored 200,000 gallons of water pumped up from the nearby artesian springs. The water tank occupies the upper quarter of the cylindrical tower while seven floors, one room per floor, constitute the lower three quarters. Original construction included an electric passenger elevator.