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Home > Current News > 2005

Current News

Nantachie Lake Aquatic Vegetation Control

The Louisiana Department of Wildlife and Fisheries (LDWF) has scheduled a fall/winter drawdown for Nantachie Lake.

LDWF has tentatively scheduled a drawdown beginning Sept. 6 or soon after this date as the corps project is completed. If the project is not completed by Nov. 1, the drawdown will not take place. If the drawdown takes place, the lake will be lowered at a rate of 3 to 5 inches per day until the lake is approximately 7 feet below pool stage. The drainage structure will be closed Jan. 31, 2006 and the lake will be allowed to refill.

The lake has been unable to undergo a drawdown since the Red River Lock and Dam project was completed in 1993. This project raised the pool elevation of the Red River to 95 feet mean sea level (msl); the same level as the Nantachie Lake spillway.

Prior to the Red River project, the U.S. Army Corps of Engineers agreed to install an alternate drawdown structure that would provide a means to dewater the lake. This project is scheduled to be completed during the month of September.

LDWF fisheries personnel in the District III office have received numerous calls concerning submergent aquatic vegetation (SAV). In addition to native SAV, hydrilla, an exotic noxious aquatic weed, has become established in the lake and is hindering boating access and recreational opportunities in many areas of the lake. Hydrilla was first located at the public launch on the southeast end of the lake and it has spread throughout most of the southern half of the lake.

Posted: 9/6/05
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