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Gatun Dam Spillway Discharging Flood-Water Old PostcardPanama Vintage Colour Postcard. Gatun Spillway Discharging Flood-Water at the rate of 15,000 cubic feet per second. This overflow will be used to generate electric power. The spillway is about 1200 feet long and 300 feet wide, is located in the center of the Gatun Dam and contains about 225,000 cubic yards of concrete.
Publisher: Underwood & Underwood N.Y.