USGS Water-Year Summary 2018
02411600 (NWS 01-8859-5) COOSA RIVER AT WETUMPKA, AL
LOCATION - Lat 32°32'13", long 86°12'32" referenced to North American Datum of 1927, Elmore County, AL, Hydrologic Unit 03150107, on downstream side of bridge on West Bridge St, in Wetumpka, and at river mile 11.45.
DRAINAGE AREA - 10,148 mi².
PERIOD OF RECORD - 1893 to current year (gage heights only). October 1971 to current year in reports of U.S. Geological Survey; January 1900 to December 1971 in reports of National Weather Service.
REVISED RECORDS - WDR AL-84-1: Drainage area.
GAGE - Water-stage recorder. Datum of gage is 113.45 ft above NGVD of 1929 (datum published incorrectly 1971-96).
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Apr. 1, 1886, reached a stage of 61.7 ft, from floodmarks.
EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 57.9 ft, Apr. 8, 1938; minimum gage height, 2.5 ft, Aug. 4, 1925.