Wheeler Dam is located above the mouth of the Tennessee River, a few miles downstream from the river's Elk River confluence. The dam is roughly southwest of Rogersville and about downstream from Decatur. The dam's reservoir stretches for along the river to the base of Guntersville Dam to the east. Wilson Dam and the city of Muscle Shoals are located just downstream of Wheeler Dam. Alabama State Route 101 crosses the top of the dam.
Capacity
At high, Wheeler is the shortest of TVA's Tennessee River dams. The dam is long at its crest, and has an electrical generating capacity of 411,800 kilowatts. The dam's spillway is equipped with 60 tainter gates with a combined discharge of. The dam's reservoir has of shoreline and of water surface, and has a flood-storage capacity of. Wheeler Dam has two locks for river traffic, the main lock being and an auxiliary lock measuring. The locks raise and lower vessels up to between Wheeler and Wilson lakes.
Background and construction
The stretch of the Tennessee River between Decatur and Florence drops over in elevation, creating what was once a series of rapids known as the Muscle Shoals and the Elk River Shoals. Along with the Tennessee River Gorge to the east, these shoals had long been an impediment to river navigation, effectively isolating the upper Tennessee Valley from the nation's major inland waterways. Canal work inthe 19th century had improved navigation through the shoals, but were insufficient for major river traffic. In 1898, Congressman Joe Wheeler introduced legislation in Congress that obtained federal funding for navigation improvements. The construction of Wilson Dam in the 1920s and various other improvements helped create a channel over the shoals, but even then navigation was only possible during times of high water flow. The Corps of Engineers had planned to build a dam at the Wheeler site in the early 1930s, and had gained authorization for the dam's lock, although the project was assumed by the Tennessee Valley Authority shortly after the Authority's creation in 1933. Construction work on Wheeler Dam began on November 21, 1933, the second major dam construction project attempted by TVA. The construction of Wheeler Dam required the purchase of of land, of which had to be cleared. 840 families, 176 graves, and of roads had to be relocated. Work began as soon as possible as an unemployment relief measure, and at peak activity the project employed 4,700 workers. As TVA lacked dam construction experience, the Authority relied heavily on the Army Corps of Engineers and the U.S. Bureau of Reclamation for the dam's design. The Army Corps also designed and built the dam's locks. Wheeler Dam was completed on November 9, 1936, constructed at a cost of $87,655,000. Dredge work continued until the following year to extend the navigation channel to Guntersville Dam, which at the time was under construction.
