Tellico Dam is a concrete gravity and earthen embankment dam on the Little Tennessee River that was built by the Tennessee Valley Authority in Loudon County, Tennessee. Planning for a dam structure on the Little Tennessee was reported as early as 1936 but was deferred for development until 1942. Completed in 1979, the dam created the Tell…Tellico Dam is a concrete gravity and earthen embankment dam on the Little Tennessee River that was built by the Tennessee Valley Authority in Loudon County, Tennessee. Planning for a dam structure on the Little Tennessee was reported as early as 1936 but was deferred for development until 1942. Completed in 1979, the dam created the Tellico Reservoir and is the last dam to be built by the Tennessee Valley Authority.