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Westinghouse Floodgates

Because of their relatively low elevation with respect to that of the Monongahela river, the Westinghouse facilities in East Pittsburgh and Turtle Creek were vulnerable to back water flooding, when the waters of the Monongahela reach such a height as to cause water to back up into the Turtle Creek channel. This happened multiple times, notably during the Great St. Patrick's Day flood of 1936. The Westinghouse Floodgate project was undertaken from 1937 to 1938 for the purpose of blocking similar floods from backing up into the Turtle Creek channel. The project consisted of two adjoining floodgates, one 80 by 30 foot gate which could be lowered to block the creek itself, and an adjoining 40 by 20 foot gate that would be simultaneously block (Old) Braddock Avenue, which runs parallel to Turtle Creek in its floodplain. On the left bank of the creek next to the gates stands a gatehouse/pump-house, which held three 5,000 hp (3,700 kW) pumps capable of pumping 7,500 cubic feet of water downstream per second in the event that the gates needed to be lowered. The height of the gates meant that they could withstand backwater from the Monongahela river as long as the river surface remained below 750 feet above sea level.