Cheoah Dam in the context of Alcoa

The Little Tennessee River (known locally as the Little T) is a 135-mile (217 km) tributary of the Tennessee River that flows through the Blue Ridge Mountains in the southeastern United States from Georgia, into North Carolina, and then into Tennessee. Reaching its confluence with the Tennesssee River at Lenoir City, Tennessee, it drains portions of three national forests— Chattahoochee, Nantahala, and Cherokee— and provides the southwestern boundary of the Great Smoky Mountains National Park.

Numerous dams were erected on the river in the 20th century for flood control and hydropower generation. The river flows through five major impoundments: Fontana Dam, Cheoah Dam, Calderwood Dam, Chilhowee Dam, and Tellico Dam, and one smaller impoundment, Porters Bend Dam.

Calderwood Dam is a hydroelectric dam located along the Little Tennessee River in Blount and Monroe counties, in the U. S. state of Tennessee. Completed in 1930, the dam is owned and maintained by Tapoco, a subsidiary of the Aluminum Company of America (Alcoa), although the Tennessee Valley Authority (TVA) controls the dam's reservoir levels from Fontana Dam further upstream. Calderwood Dam is named for Alcoa engineer Isaac Glidden Calderwood (1871–1941), who supervised much of the company's early Little Tennessee River operations.

Calderwood Dam was one of four dams—along with Cheoah, Santeetlah, and Chilhowee—built in the Little Tennessee Valley by Alcoa in the 20th century to provide electricity to its aluminum smelting operations in Blount County. The dam was one of the last to be completed in the Tennessee River watershed before TVA took control of the watershed in 1933. Alcoa developed the community of Calderwood, Tennessee, just downstream from the dam to house construction and maintenance crews for its Little Tennessee Valley operations. In 1989, Calderwood Dam was placed on the National Register of Historic Places. The listing was expanded in 1990 and again in 2004 to include most of the dam's substructures.

Chilhowee Dam is a hydroelectric dam located in Blount and Monroe counties, Tennessee, United States, between river mile 33 and 34 on the Little Tennessee River. Construction began in 1955 and was completed in 1957 to provide power for the operation of the Alcoa Aluminum plant in nearby Alcoa, TN. The dam is now owned and operated by Brookfield Smoky Mountain Hydropower. The dam's reservoir (Chilhowee Lake) covers approximately 1,734 acres (702 ha) at normal full pool and has a drainage area of 1,977 square miles (5,120 km). The elevation of Chilhowee Reservoir is 874 feet (266 m) above mean sea level (USGS). Chilhowee's powerhouse is equipped with three Kaplan turbines that have a combined generating capacity of 48 megawatts.

Like Calderwood and Cheoah, Chilhowee is controlled by Fontana Dam. Fontana Dam is the primary flow control facility for the lower Little Tennessee River. Tapoco built and operates the Chilhowee Development. Chilhowee Dam and its powerhouse are listed on the National Register of Historic Places as the Chilhowee Hydroelectric Development. When the lake is drawn down for maintenance, the remains of the original bridge of US 129 over Abrams Creek can be seen.