1976 TVA Normandy Dam on Duck River near Normandy, TN

(Satellite)

TVA
Normandy is the largest of the nonpower dams on tributaries of the Tennessee River. Normandy also provides water for a fish hatchery immediately downstream. It is an earthen dam that is 110' high and 2,807' long. The water level in the Normandy Reservoir varies about 11' in a normal year.

TVA posted four photos with the comment: "Normandy Dam, located on the Duck River in middle Tennessee, is our largest non-power tributary storage project. It was developed as the first of two proposed projects to aid in the economic advancement of the upper Duck River region, with construction beginning on June 7, 1972. Today, Normandy Dam provides flood control, water supply, recreation, and economic development for the region."

Bradley Campbell: How do dams help with economic development?

Elijah Kirby: Bradley Campbell the lakes they create help with economic development. New gas stations, marinas (although none on Normandy), restaurants, rental businesses, parks, etc around the lake.

Harold L. Orr: What’s the name of the dam that was built and dismantled on the Duck River?

Karen Harris St Clair: Harold L. Orr Columbia Dam

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"Normandy Dam, which impounds the Duck, went to a spill rate of 12,200 cubic feet per seconds. This was combined with other lower-level outlets which were releasing another couple thousand to total 15,000 cfs being released earlier this week." It release close to 20,000 cfs in the 1990s. There are two lower-level sluice gates and a 36" valve. [t-g] So can the low-level outputs do 15,000-12,200=2,800 or 2,000 cfs?

Brent Moore Flickr, License: Creative Commons Attribution-NonCommercial (CC BY-NC) 
Normandy Dam is a dam built by the TVA on the Duck River It straddles the border between Bedford and Coffee counties. It is the TVA's largest dam that does not produce any electricity. It was built in the 1970s for flood control, water supply and recreational uses.