Lower Coosa

Watershed Hydrology

The Lower Coosa watershed (HUC 03150107) covers approximately 4,350 square miles in Alabama and Georgia. It is a humid subtropical climate zone with hot summers and mild winters. The hydrology of the watershed is dominated by the Coosa River and its tributaries, which provide surface water for drinking, recreation, and industrial use. The watershed receives an average annual rainfall of 55 inches and experiences occasional floods. In winter, the area can receive snowfall, but it is typically light and infrequent. The main reservoirs in the watershed are Weiss Lake and Logan Martin Lake, which provide recreation, flood control, and hydroelectric power. Water quality in the watershed is a concern due to pollution from agriculture, industry, and urban runoff. Climate trends in the region indicate increasing temperatures and more frequent extreme weather events, such as hurricanes and droughts.


Surface Flows

Lower Coosa Watershed

Snowpack Depths

Lower Coosa Watershed

Dams & Reservoirs

Lower Coosa Watershed

Groundwater Levels

Lower Coosa Watershed

Lower Coosa Rivers

Rivers of the Watershed