Osage County topographic maps

The spillway is a gated ogee weir, 720 feet (220 m) wide with eighteen tainter gates, each 40 by 35 feet (12 by 11 m). Spillway capacity at the maximum pool level (elevation 766.0 feet (233.5 m)) is 939,000 cubic feet per second (26,600 m3/s). Capacity at the top of the flood control pool level (elevation…

Average elevation: 791 ft

Average elevation: 771 ft

Average elevation: 1,007 ft

Average elevation: 774 ft

Average elevation: 892 ft

Average elevation: 919 ft

Average elevation: 725 ft

Average elevation: 866 ft