Duck River (Tennessee)
Encyclopedia
The Duck River, 284 miles (457.1 km) long, is the longest river
River
A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 located entirely within the U.S. state
U.S. state
A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of Tennessee
Tennessee
Tennessee is a U.S. state located in the Southeastern United States. It has a population of 6,346,105, making it the nation's 17th-largest state by population, and covers , making it the 36th-largest by total land area...

. Free flowing for most of its length, the Duck River is home to over 50 species of freshwater mussel
Mussel
The common name mussel is used for members of several families of clams or bivalvia mollusca, from saltwater and freshwater habitats. These groups have in common a shell whose outline is elongated and asymmetrical compared with other edible clams, which are often more or less rounded or oval.The...

s and 151 species of fish, making it one of the most biologically diverse rivers in North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

.

The Duck River drains a significant portion of Middle Tennessee
Middle Tennessee
Middle Tennessee is a distinct portion of the state of Tennessee, delineated according to state law as the 41 counties in the Middle Grand Division of Tennessee....

. It rises in hills near an area of Middle Tennessee known as the "Barrens", an area with enough rainfall to support a woodland but which white settlers found already deforested upon their arrival. (Several theories have been advanced to explain this phenomenon.) It enters the city of Manchester
Manchester, Tennessee
Manchester is a city in Coffee County, Tennessee, United States. The population was 10,102 at the 2010 census. It is the county seat of Coffee County...

 and meets its confluence with a major tributary
Tributary
A tributary or affluent is a stream or river that flows into a main stem river or a lake. A tributary does not flow directly into a sea or ocean...

, the Little Duck River
Little Duck River
The Little Duck River is a tributary of the Duck River of Tennessee in the United States. Via the Duck, Tennessee, and Ohio rivers, it is part of the Mississippi River watershed...

, at Old Stone Fort State Park
Old Stone Fort (Tennessee)
The Old Stone Fort is a prehistoric Native American structure located in Coffee County, Tennessee, in the Southeastern United States. The structure was most likely built between 80 and 550 AD during the Middle Woodland period....

, named after an ancient Native American
Native Americans in the United States
Native Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...

 structure between the two rivers believed to be nearly 2,000 years old.

Other major towns along the Duck include Shelbyville
Shelbyville, Tennessee
Shelbyville is a city in Bedford County, Tennessee, United States. It had a local population of 16,105 residents at the 2000 census. Shelbyville, the county seat of Bedford County, was laid out in 1810 and incorporated in 1819...

, Columbia
Columbia, Tennessee
Columbia is a city in Maury County, Tennessee, United States. The 2008 population was 34,402 according to U.S. Census Bureau estimates. It is the county seat of Maury County....

, and Centerville
Centerville, Tennessee
Centerville is a town in Hickman County, Tennessee, United States. The population was 3,793 at the 2000 census. It is the county seat of Hickman County. It is probably best known for being the hometown of country comedian Minnie Pearl...

. Above Shelbyville, the Duck is impounded by Normandy Dam, a Tennessee Valley Authority
Tennessee Valley Authority
The Tennessee Valley Authority is a federally owned corporation in the United States created by congressional charter in May 1933 to provide navigation, flood control, electricity generation, fertilizer manufacturing, and economic development in the Tennessee Valley, a region particularly affected...

 project of the early 1970s which was built for flood control and recreation. Normandy was not equipped for power generation as were previous TVA dams built in Middle Tennessee. The structure was named for the hamlet of Normandy
Normandy, Tennessee
Normandy is a town in Bedford County, Tennessee, United States. The population was 141 at the 2000 census.-History:Normandy was established in 1852 as a railroad town on the old Nashville & Chattanooga Railroad Line later the Nashville, Chattanooga, & St...

, which is nearby. The resultant reservoir
Reservoir
A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...

 occupies over 5000 acres (2,023.4 ha) of what was previously prime land for agriculture
Agriculture
Agriculture is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture was the key implement in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the...

. Further downstream, Shelbyville is protected from potential Duck River flooding by levees and floodgates. A dam
Dam
A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are...

 constructed by the Tennessee Electric Power Company across the river adjacent to downtown Shelbyville is a relic of the early electrical
Electricity
Electricity is a general term encompassing a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning, static electricity, and the flow of electrical current in an electrical wire...

 development of the area prior to the establishment of the Tennessee Valley Authority.

Downstream in Maury County is the Yanahli Wildlife Preserve, occupying land which was meant to be another TVA reservoir. The Columbia Dam was never completed, however, when an endangered species
Endangered species
An endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters...

 of mussel
Mussel
The common name mussel is used for members of several families of clams or bivalvia mollusca, from saltwater and freshwater habitats. These groups have in common a shell whose outline is elongated and asymmetrical compared with other edible clams, which are often more or less rounded or oval.The...

 was found in this section of the Duck and studies showed the project costs would far exceed benefits. After years of litigation, the dam, which was largely completed, was dismantled at a loss approaching $80,000,000 of public funds. Another old Tennessee Electric Power Company dam, somewhat similar to the one in downtown Shelbyville, is located downstream of the uncompleted dam site. Private funds have been spent on this dam to rehabilitate it to resume electrical power production; however, this has not proven to be successful. The Duck River frequently floods parts of Columbia, particularly the poorer neighborhoods near downtown. Columbia, with a population approaching 40,000, is by far the largest town along the Duck.

Between Columbia and Centerville, the Duck cuts through the Western Highland Rim and is joined by several major tributaries, notably the Piney River
Piney River (Middle Tennessee)
The Piney River is a tributary of the Duck River in Middle Tennessee in the United States. Via the Duck River, the Tennessee River, and the Ohio River, it is part of the Mississippi River watershed. The headwater tributaries of the Piney River rise in Dickson County, Tennessee near the city of...

. Downtown Centerville is located high above the Duck River bottoms. Below Centerville, the Duck again enters a fairly rural
Rural
Rural areas or the country or countryside are areas that are not urbanized, though when large areas are described, country towns and smaller cities will be included. They have a low population density, and typically much of the land is devoted to agriculture...

, somewhat remote area. Its largest single tributary, the Buffalo River
Buffalo River (Tennessee)
The Buffalo River is the longest unimpounded river in Middle Tennessee in the United States, flowing through the southern and western portions of that region. It is the largest tributary of the Duck River and is used for canoeing, especially in its middle section...

, reaches its confluence with the Duck in southern Humphreys County
Humphreys County, Tennessee
Humphreys County is a county located in the U.S. state of Tennessee. As of 2000, the population was 17,929. The 2005 Census Estimate placed the population at 18,212. Its county seat is Waverly.-Geography:According to the U.S...

, just a few miles from the mouth of the Duck into the Tennessee River. The area of the mouth of the Duck is part of the Tennessee National Wildlife Refuge
Tennessee National Wildlife Refuge
Tennessee National Wildlife Refuge is a National Wildlife Refuge established in 1945 and located along the shores of the Tennessee River in West Tennessee where the empoundment of Kentucky Lake by the Tennessee Valley Authority has created a more-or-less permanent wetlands environment favored by...

. The total length of the Duck River is over 240 miles (386.2 km).

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