USGS Water-Year Summary 2021
02462500 BLACK WARRIOR RIVER AT BANKHEAD LOCK AND DAM NEAR BESSEMER, AL
LOCATION - Lat 33°27'30", long 87°21'15" referenced to North American Datum of 1927, Tuscaloosa County, AL, Hydrologic Unit 03160112, at abandoned lock wall 300 ft above dam, 1.9 mi downstream from Big Yellow Creek, 23 mi northwest of Bessemer, and at mile 153.6.
DRAINAGE AREA - 3,981 mi².
- WDR AL-84-1: Drainage area.
PERIOD OF RECORD - October 1928 to September 1936. October 1976 to September 2014 (Records furnished by Alabama Power Company), October 2014 to current year (gage heights only).
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929. Prior to October 1, 1998, gage datum was 173.50 ft higher.
PERIOD OF RECORD - January 1999 to current year. January 1999 to September 2010 in files of Geological Survey.
INSTRUMENTATION - Tipping bucket.