Watts Bar Reservoir

Watts Bar Reservoir. It is a major reservoir on the Tennessee River system, created by the impoundment of the river by Watts Bar Dam. The reservoir stretches across parts of Rhea, Meigs, and Roane counties in East Tennessee. It serves multiple purposes, including flood control, hydroelectric power generation, and navigation, as part of the comprehensive water management system developed by the Tennessee Valley Authority.

Geography and location

The reservoir is situated along a significant stretch of the Tennessee River, immediately downstream from the confluence with the Clinch River near Kingston. Its waters extend up the Tennessee River valley and also flood the lower reaches of the Emory River. The shoreline is characterized by a mix of forested bluffs, agricultural land, and developed areas, with the reservoir lying within the Ridge-and-Valley physiographic province. Major adjacent communities include Spring City and the area around the Watts Bar Nuclear Plant. The reservoir is a key component of the Tennessee River navigation channel, providing a continuous waterway for barge traffic.

History and construction

The reservoir was created following the completion of Watts Bar Dam in 1942, a project undertaken by the Tennessee Valley Authority as part of the New Deal era's efforts to modernize the Tennessee Valley. Construction of the dam required the relocation of several communities and infrastructure, including portions of the Louisville and Nashville Railroad. The site had earlier significance due to the now-inundated Watts Bar Steam Plant. The impoundment of the river transformed the local landscape and economy, facilitating industrial development such as the later construction of the Watts Bar Nuclear Generating Station by the Tennessee Valley Authority.

Hydrology and dam operations

Watts Bar Dam is a concrete gravity and embankment dam that regulates the flow of the Tennessee River for hydroelectricity production and flood control. The dam's powerhouse contains generating units operated by the Tennessee Valley Authority, contributing to the regional power grid. Water levels in the reservoir are managed in conjunction with upstream facilities like Fort Loudoun Dam and downstream dams such as Chickamauga Dam as part of the integrated Tennessee Valley Authority system. These operations are crucial for maintaining navigational depths on the river and mitigating flood risks for cities like Chattanooga.

Ecology and environmental aspects

The reservoir and its watershed support diverse aquatic life, including species like largemouth bass and catfish, making it a regionally important fishery. The Tennessee Valley Authority and the Tennessee Wildlife Resources Agency monitor water quality and manage fish populations. Environmental considerations include managing shoreline erosion, nutrient runoff from agricultural areas, and the ecological effects of the Watts Bar Nuclear Plant's cooling water intake and discharge. The reservoir's creation also led to the loss of some riverine habitat, which has been partially offset by the development of new lacustrine ecosystems.

Recreation and economic impact

The reservoir is a hub for recreational activities, including boating, fishing, and camping at facilities like the Watts Bar Lake Park managed by the Tennessee Valley Authority. It hosts numerous fishing tournaments and is a popular destination for residents of Knoxville and Chattanooga. Economically, it supports local tourism and real estate, while its waters provide process cooling for the Watts Bar Nuclear Generating Station, a major employer and power supplier. The reliable waterway also supports commercial barge traffic transporting goods like coal and agricultural products along the Tennessee River.

Category:Reservoirs in Tennessee Category:Tennessee Valley Authority Category:Tennessee River