Carlyle Lake Increasing Downstream Releases

Published April 5, 2018


CARLYLE LAKE - As of 11:00 a.m. on Thursday, April 5, 2017 the pool elevation at Carlyle Lake was 451.91 feet, referenced to the National Geodetic Vertical Datum (NGVD), with a release of approximately 5,660 cubic feet per second (cfs). The inflow for Wednesday, April 4, 2018 was approximately 17,660 day second feet (dsf). With current precipitation on the ground, Carlyle Lake is forecasted to crest at 453.2 NGVD on Saturday, April 7, 2018. In order to free up flood control storage in the lake and to continue to provide benefits to other project purposes, in accordance with the water control plan, downstream releases will increase to approximately 10,000 cfs on Sunday, April 8, 2018. Carlyle Lake Dam is operating as designed, helping to reduce stages on the Lower Kaskaskia and Mississippi Rivers.

Due to the rising water level, breakwaters and facilities at Carlyle Lake have been overtopped and caution should be used when boating near these and other submerged structures. Boaters are also reminded to use caution and watch for floating logs and other debris that may be present. Some township roads around the lake have also become inundated, motorists should use caution when driving in low lying areas around the lake.

Boat ramps impacted by the high water conditions include: Dam West, Dam East, Coles Creek, Boulder, Keyesport, Allen Branch, Patoka, and Peppenhorst Branch. High water ramps at Dam West, Dam East, Coles Creek, Apache, Tamalco, Horseshoe Island, and Boulder are available for launching.

The Corps of Engineers continues to work closely with their partners, the Carlyle Lake Association, Mid-Kaskaskia River Association and the Okaw River Basin Coalition to monitor the situation. For more information, contact the Carlyle Lake Project Office at (618) 594-2484 or email at

Amanda Hondel
kim Hammel

Release no. 18-029