For immediate release: 6/18/08

Floodwater release bulletin

At 2 PM on Wednesday, June 18:

• Grand Lake elevation was 751.97 feet.
  
• Grand Lake flood pool was at 66.74 percent capacity.
  
• At the direction of the United States Army Corps of Engineers, four (4) floodgates were open at Pensacola Dam, discharging 21,528 cubic feet per second (cfs) of water.
  
• Six (6) units were online at the Pensacola Dam powerhouse, releasing 14,322 cfs of water through generation.
  
• Releases through floodgates and generation totaled 35,850 cfs.
  
• Inflows into Grand Lake totaled 17,300 cfs.

• Lake Hudson elevation was 632.25 feet.
  
• Lake Hudson flood pool was at 72.47 percent capacity.
  
• At the direction of the United States Army Corps of Engineers, one (1) floodgate was open at Kerr Dam, discharging 17,500 cubic feet per second (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 39,100 cfs.
  
• Inflows into Lake Hudson totaled 38,575 cfs.

Grand Lake crested at an elevation of 752.48 at 2 PM on Tuesday, June 17. Lake Hudson crested at 632.42 at 8PM on Monday, June 16.

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.