GRDA Floodwater Release Bulletin 04/16/08 1:15pm

At 1:15 PM on Wednesday, April 16:

• Grand Lake elevation was 751.38 feet.
• Grand Lake flood control pool was at 60.77 percent capacity.
• At the direction of the United States Army Corps of Engineers, two (2) floodgates were open at Pensacola Dam, discharging 10,056 cubic feet per second (cfs) of water.
• Six (6) units were online at the Pensacola Dam powerhouse, releasing 14,204 cfs of water through generation.
• Releases through floodgates and generation totaled 24,260 cfs.
• Inflows into Grand Lake totaled 14,718 cfs.
• Lake Hudson elevation was 630.18 feet.
• Lake Hudson’s flood control pool was at 58.58 percent capacity.
• At the direction of the United States Army Corps of Engineers, one (1) floodgate was open at Robert S. Kerr Dam, discharging 11,819 cfs of water.
• Three (3) units were online at Robert S. Kerr Dam powerhouse releasing 21,330 cfs of water through generation.
• Releases through floodgates and generation totaled 33,149 cfs.
• Inflows into Lake Hudson totaled 26,033 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.