For immediate release: 5/12/08

Floodwater release bulletin

At 3 PM on Tuesday, May 13:

• Grand Lake elevation was 749.13 feet.
  
• Grand Lake flood control pool was at 38.7 percent capacity.
  
• At the direction of the United States Army Corps of Engineers, six (6) floodgates were open at Pensacola Dam, discharging 21,468 cubic feet per second (cfs) of water.
  
• Six (6) units were online at the Pensacola Dam powerhouse, releasing 14,235 cfs of water through generation.
  
• Releases through floodgates and generation totaled 35,703 cfs.
  
• Inflows into Grand Lake totaled 15,604 cfs.
• Lake Hudson elevation was 626.31 feet.
  
• Lake Hudson flood control pool was at 35.8 percent capacity.
  
• At the direction of the United States Army Corps of Engineers, one (1) floodgate was open at Robert S. Kerr Dam, discharging 21,437 cfs of water.
  
• Three (3) units were online at Robert S. Kerr Dam powerhouse releasing 21,600 cfs of water through generation.
  
• Releases through floodgates and generation totaled 43,037 cfs.
  
• Inflows into Lake Hudson totaled 37,133 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.