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USGS Water-Year Summary 2024
02423000 ALABAMA RIVER AT SELMA, AL
LOCATION - Lat 32°24'20", long 87°01'07" referenced to North American Datum of 1927, Dallas County, AL, Hydrologic Unit 03150201, at first pier from right bank of Edmund Pettus Bridge on U.S. Highway 80, in Selma, 1 mi upstream of Valley Creek, and at mile 214.8.
DRAINAGE AREA - 17,095 mi².
REVISIONS HISTORY - WDR AL-84-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - January to December 1899 (gage heights only), January 1900 to December 1913, and June 1928 to September 1970. October 1971 to current year (gage heights only). Gage-height records December 1890 to December 1971 are contained in reports of National Weather Service.
GAGE - Water-stage recorder. Datum of gage is 61.80 ft above NGVD of 1929. Prior to June 22, 1928, nonrecording gage, June 22, 1928 to Apr. 11, 1938, water-stage recorder, and Apr. 12, 1938 to May 22, 1940, nonrecording gage at site 300 ft upstream at same datum.
REMARKS - Record considered good. Flow affected by operation of reservoirs on Etowah, Coosa, Tallapoosa, and Alabama Rivers. (See Reservoirs in Mobile River basin.) Stage affected by Millers Ferry Lock and Dam since November 1968.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Apr. 8, 1886, reached a stage of 57.0 ft (discharge, 248,000 ft³/s), present site and datum, from floodmarks established by U.S. Army Corps of Engineers.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 284,000 ft³/s, Mar. 1, 1961, gage height, 57.97 ft; minimum discharge observed, 2,660 ft³/s, Nov. 1, 1904, gage height, -2.20 ft.
AVERAGE DISCHARGE FOR PERIOD OF RECORD - 55 years (water years 1901-13, 1929-70), 26,170 ft³/s, 20.78 in/yr.
