Floodwater release bulletin

At 2 PM on Tuesday, April 1:

• Grand Lake elevation was 746.99 feet.
• Grand Lake flood control pool was at 17.82 percent capacity.
• At the direction of the United States Army Corps of Engineers, nine (9) floodgates were open at Pensacola Dam, discharging 21,546 cubic feet per second (cfs) of water.
• Five (5) units were online at the Pensacola Dam powerhouse, releasing 11,763 cfs of water through generation.
• Releases through floodgates and generation totaled 33,309 cfs.
• Inflows into Grand Lake totaled 49,220 cfs.

• Lake Hudson elevation was 621.89 feet.
• Lake Hudson’s flood control pool was at 12.94 percent capacity.
• At the direction of the United States Army Corps of Engineers, one (1) floodgate was open at Robert S. Kerr Dam, discharging 15,711 cfs.
• Two (2) units were online at Robert S. Kerr Dam powerhouse, releasing 15,120 cfs of water through generation.
• Releases through floodgates and generation totaled 30,831 cfs.
• Inflows into Lake Hudson totaled 46,136 cfs.

The Grand River watershed consists of approximately 12,000 square miles of runoff in parts of Kansas, Missouri and Oklahoma. Of that total, over half—7,000 square miles—is uncontrolled runoff, meaning there is no reservoir to control it above the Pensacola Dam. However, the remaining 5,000 square miles of runoff passes through the John Redmond Dam, located near Burlington, Kansas, prior to reaching the Grand River system in Oklahoma.