Threats

WATER QUALITY
In the Alabama River Basin, logging and mining activities were cited as causes for impairments in the basin. Similar impairments, including high concentrations of metals and low pH values attributed to mining activities were described for the Cahaba River Basin (Corps, ’98).

IMPAIRED STREAMS/SECTIONS
41 miles of streams in the Alabama basin only partially support their designated use. On the Alabama River, water quality indicators such as dissolved oxygen and biochemical oxygen demand have shown trends indicative of degrading conditions. (Corps, ’98)

There are some shoaling effects (sediment deposition where the velocity of water is slowed by a downstream impoundment) approximately 48 river miles upstream from the R.F. Henry Lock and Dam (Corps ’98).

There is erosion occurring at Claiborne Lake and banks are being undercut due to the periodic fluctuations in the reservoirs water levels (Corps ‘ 98).