Floodwater release
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At 10:00 AM on Tuesday, April 8:
- Grand Lake elevation was 745.56 feet.
- Grand Lake flood control pool was at 5.10 percent
capacity.
- At the direction of the United States Army Corps of
Engineers, one (1) floodgate was open at Pensacola Dam, discharging 217
cubic feet per second (cfs) of water.
- Six (6) units were online at the Pensacola Dam
powerhouse, releasing 14,028 cfs of water through generation.
- Releases through floodgates and generation totaled 14,245
cfs.
- Inflows into Grand Lake totaled 10,366 cfs.
- Lake Hudson elevation was 619.69 feet.
- Lake Hudson’s flood control pool was at 2.58 percent
capacity.
- At the direction of the United States Army Corps of
Engineers, no floodgates were open at Robert S. Kerr Dam.
- Two (2) units were online at Robert S. Kerr Dam
powerhouse releasing 15,660 cfs of water through generation.
- Inflows into Lake Hudson totaled 15,972 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.