GRDA Floodwater release bulletin 05/07/08

At 7PM on Wednesday, May 7:

• Grand Lake elevation was 746.74 feet.
• Grand Lake flood control pool was at 15 percent capacity.
• At the direction of the United States Army Corps of Engineers, fourteen (14) floodgates were open at Pensacola Dam, discharging 31,416 cubic feet per second (cfs) of water.
• Six (6) units were online at the Pensacola Dam powerhouse, releasing 13,954 cfs of water through generation.
• Releases through floodgates and generation totaled 45,370 cfs.
• Inflows into Grand Lake totaled 17,442 cfs.
• Lake Hudson elevation was 622.44 feet.
• Lake Hudson's flood control pool was at 16 percent capacity.
• At the direction of the United States Army Corps of Engineers, one (1) floodgate was open at Robert S. Kerr Dam, discharging 16,001 cfs of water.
• Three (3) units were online at Robert S. Kerr Dam powerhouse releasing 22,410 cfs of water through generation.
• Releases through floodgates and generation totaled 38,411 cfs.
• Inflows into Lake Hudson totaled 50,105 cfs.

At 7 PM on Wednesday, May 7, the United States Army Corps of Engineers was predicting a crest of 749.50 feet for Grand Lake. No crest information was available for Lake Hudson at this time.

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.

Grand River Dam Authority News Release
Contact: Justin Alberty
Corporate Communications Director
Grand River Dam Authority
(918) 256-5545
jalberty@grda.com
www.grda.com

For immediate release: 5/7/08