Broad

Watershed Hydrology

The Broad Watershed (HUC 03060104) covers approximately 3,107 square miles in southwestern Virginia and northeastern Tennessee. The area is characterized by rugged topography with elevations ranging from 1,000 to 5,000 feet above sea level. The watershed is fed by several small creeks and streams that eventually flow into the South Fork of the Holston River. The region has a humid subtropical climate with hot summers and cool winters. Snowfall is common in winter months, with an average snowpack of around 10 inches. The Broad Watershed supports several reservoirs for drinking water and recreation, including South Holston Lake and Watauga Lake. Water quality in the watershed is generally good, with low levels of pollutants. However, there are concerns about erosion from agricultural activities and development. Climate change is expected to bring more frequent and intense precipitation events to the region, which could impact water quality and ecosystem health.


Surface Flows

Broad Watershed

Snowpack Depths

Broad Watershed

Dams & Reservoirs

Broad Watershed

Groundwater Levels

Broad Watershed

Broad Rivers

Rivers of the Watershed