The U.S. Army Corps of Engineers Vicksburg District notified local authorities and emergency management personnel of the need to open the gates of the Muddy Bayou Control Structure, located 13 miles northwest of Vicksburg in the Yazoo River Basin, within the next four-to-five days.
Once conditions allow, the gates at Muddy Bayou will be operated to begin a controlled fall of stages at Eagle Lake, located approximately 10 miles north of Vicksburg. As stages at Steele Bayou continue to fall, gates will be opened more to allow the lake to fall at a rate of 0.1-0.2 feet per day. This rate will ensure that minimal damage occurs to saturated banks as the lake level falls.
Fisheries biologists with the Mississippi Department of Wildlife, Fisheries, and Parks do not anticipate any negative impacts on fish populations or aquatic vegetation as the lake level falls. The slow fall rate will also minimize the likelihood for a fish kill caused by low dissolved oxygen levels.
The Muddy Bayou Control Structure regulates water flowing into or out of Eagle Lake through Muddy Bayou, a tributary of Steele Bayou. The drainage structure, which was constructed as a fish and wildlife mitigation feature of the Yazoo Backwater Project, is used by USACE during periods of high water in the Yazoo River Basin to reduce the risk of damage to the Muddy Bayou Control Structure and to prevent scour or further damage to roads and homes surrounding the lake.
Eagle Lake’s stage is allowed to fluctuate between 75-76.9 feet during certain seasons in an effort to improve the lake’s fisheries. The rates of rise and fall of Eagle Lake water levels are dependent on the stages of Steele Bayou and inflow from rainfall and runoff over the Eagle Lake watershed. If stages permit regulation of the structure, the Mississippi Department of Wildlife Fisheries and Parks establishes the desired rates of rise and fall in accordance with the Eagle Lake Water Level Management Agreement. The agreement was signed in 2000 by representatives of the USACE Vicksburg District; the U.S. Fish and Wildlife Service; the Louisiana Department of Wildlife and Fisheries; the Mississippi Department of Wildlife, Fisheries, and Parks; the Warren County Board of Supervisors; and the Madison Parish Police Jury.
The USACE Vicksburg District is engineering solutions to the nation’s toughest challenges. The Vicksburg District encompasses a 68,000-square-mile area across portions of Mississippi, Arkansas and Louisiana that holds seven major river basins and incorporates approximately 460 miles of mainline Mississippi River levees. The district is engaged in hundreds of projects and employs approximately 1,100 personnel.
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