USGS Water-Year Summary 2024
02419890 (NWS 01-8038-N) TALLAPOOSA RIVER NEAR MONTGOMERY, AL
LOCATION - Lat 32°26'23", long 86°11'44" referenced to North American Datum of 1927, Montgomery County, AL, Hydrologic Unit 03150110, on left bank at the Clarence T. Perry (City of Montgomery) water purification plant, 2.5 mi upstream of U.S. Highway 231 bridge, 4 mi northeast of Montgomery, and at river mile 12.8.
DRAINAGE AREA - 4,646 mi².
REVISIONS HISTORY - WDR AL-84-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1995 to current year. October 1972 to September 1995 (gage heights only). August 1966 to December 1970 in files of U.S. Geological Survey. May to September 1972, in files of National Weather Service.
GAGE - Water-stage recorder. Datum of gage is 129.13 ft above NGVD of 1929.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Feb. 26, 1961, reached a stage of 41.9 ft from floodmarks.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - July 23, 2005 to current year.
INSTRUMENTATION - Water-quality monitor since July 2005.
EXTREMES FOR PERIOD OF RECORD - SPECIFIC CONDUCTANCE: Maximum, 142 microsiemens/cm, May 11, 2007; minimum, 25 microsiemens/cm, June 26, 2015.
WATER TEMPERATURE: Maximum, 33.3°C, August 22, 2007; minimum, 5.9°C, January 21, 2008.