GRDA Floodwater release bulletin 05/08/08 12 Noon

At Noon on Thursday, May 8:

• Grand Lake elevation was 747.09 feet.
• Grand Lake flood control pool was at 19.03 percent capacity.
• At the direction of the United States Army Corps of Engineers, eleven (11) floodgates (3 main gates, 8 on east spillways) were open at Pensacola Dam, discharging 48,330 cubic feet per second (cfs) of water.
• Six (6) units were online at the Pensacola Dam powerhouse, releasing 13,782 cfs of water through generation.
• Releases through floodgates and generation totaled 62,112 cfs.
• Inflows into Grand Lake totaled 80,540 cfs.
• Lake Hudson elevation was 623.91 feet.
• Lake Hudson's flood control pool was at 23.56 percent capacity.
• At the direction of the United States Army Corps of Engineers, two (2) floodgates were open at Robert S. Kerr Dam, discharging 33,552 cfs of water.
• Three (3) units were online at Robert S. Kerr Dam powerhouse releasing 20,790 cfs of water through generation.
• Releases through floodgates and generation totaled 54,342 cfs.
• Inflows into Lake Hudson totaled 75,057 cfs.

The United States Army Corps of Engineers has indicated that new crest predictions for both lakes will be available later today.

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.