For immediate release: 6/11/08

Floodwater release bulletin

At 2 PM on Thursday, June 12:

• Grand Lake elevation was 749.57 feet.
  
• Grand Lake flood pool was at 42.2 percent capacity.
  
• At the direction of the United States Army Corps of Engineers, three (3) floodgates were open at Pensacola Dam, discharging 8,151 cubic feet per second (cfs) of water.
  
• Six (6) units were online at the Pensacola Dam powerhouse, releasing 14,285 cfs of water through
• generation.
  Releases through floodgates and generation totaled 22,436 cfs.
  
• Inflows into Grand Lake totaled 50,921 cfs.

• Lake Hudson elevation was 625.82 feet.
  
• Lake Hudson flood pool was at 33.58 percent capacity.
  No floodgates were open at Robert S. Kerr Dam..
  
• Three (3) units were online at Robert S. Kerr Dam powerhouse releasing 22,140 cfs of water through generation.
  
• Inflows into Lake Hudson totaled 25,664 cfs.

The most recent crest predictions from the United States Army Corps of Engineers are for a 751.20 feet crest on Saturday (June 14) for Grand Lake. The Lake Hudson crest, at approximately 630 feet, occurred on Tuesday, June 10.

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.