Cumberland River control and the diversion of the Clover Fork around the city of Harlan. In addition, the river was diverted through a mountain cut in Loyall, Kentucky. In late April and early May 2010, due to the 2010 Tennessee floods, the river overflowed its banks and flooded Nashville and Clarksville, Tennessee. The downtown area was ordered to evacuate. Cumberland River The Cumberland River is a major waterway of the Southern United States. The river drains almost of southern Kentucky and north-central Tennessee. The river flows generally west from a source in the Appalachian Mountains to its confluence with the Ohio River
Big South Fork of the Cumberland River a flow of . Around half of the Big South Fork's annual streamflow occurs during the months of January through March, and the lowest streamflow typically occurs during September and October. Along the river basin, water drops from an maximum original elevation of above sea level at Peter's Bridge on the Clear Fork, to where the waters meet the Cumberland. Between the confluence of the New River and Clear Fork, and Leatherwood Ford the river has an average gradient across of 20 feet per mile (fpm), and a maximum gradient of 40 fpm. Major tributaries of the Big South Fork