GRDA Floodwater release bulletin 05/21/08

On Wednesday, May 21:

• Grand Lake elevation was 745.77 feet.
• Grand Lake flood pool capacity was at 5.82 percent.
• At the direction of the United States Army Corps of Engineers, five (5) floodgates were open at Pensacola Dam, discharging 8,540 cubic feet per second (cfs) of water.
• Six (6) units were online at the Pensacola Dam powerhouse, releasing 14,105 cfs of water through generation.
• Releases through floodgates and generation totaled 22,645 cfs.
• Inflows into Grand Lake totaled 8,831 cfs.
• Lake Hudson elevation was 620.33 feet.
• Lake Hudson flood pool capacity was at 5.83 percent.
• At the direction of the United States Army Corps of Engineers, zero (0) floodgates were open at Robert S. Kerr Dam, discharging 0 cfs of water.
• Three (3) units were online at Robert S. Kerr Dam powerhouse releasing 21,870 cfs of water through generation.
• Releases through floodgates and generation totaled 21,870 cfs.
• Inflows into Lake Hudson totaled 23,345 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.

Grand River Dam Authority News Release
Contact: Melanie Earl
Media Services
Grand River Dam Authority
(918) 256-5545
mearl@grda.com
www.grda.com