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Water-Year Summary for Site 02213000

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Available Parameters
00045 Precipitation(Sum)  
00045 Precipitation(Sum) [Operational]  
00060 Discharge(Mean)  
00065 Gage height(Mean)  

Water year 2021: 2021-10-01 to 2022-09-30
 

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USGS Water-Year Summary 2021
02213000 OCMULGEE RIVER AT MACON, GA
LOCATION - Lat 32°50'19", long 83°37'14" referenced to North American Datum of 1983, Bibb County, GA, Hydrologic Unit 03070103, at downstream end of right pier of Fifth Street Bridge in Macon, 1.5 miles upstream from Walnut Creek, and at mile 198.0.
DRAINAGE AREA - 2,240 mi².
REVISIONS HISTORY - WSP 822: Drainage area. WSP 1504: 1893-1903, 1905-10, 1932, 1937, 1942(M). WDR US-2010:2009.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: February 1893 to July 1912, August 1912 to December 1913 (gage heights and discharge measurements only), October 1928 to current year.
GAGE HEIGHT: February 1893 to July 1912, August 1912 to December 1913 (gage heights and discharge measurements only), October 1998 to current year. Gage height records collected at same site since 1895 are contained in reports of National Weather Service.
GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 269.80 feet above National Geodetic Vertical Datum (NGVD) of 1929. Prior to October 9, 1905, a non-recording gage was located at site within 1.5 miles downstream at about same datum. From October 9, 1905 to December 31, 1913, a non-recording gage was located at present site and datum. From January 10, 1929 to June 25, 1934, a water-stage recorder was located at a site 500 feet downstream at same datum. From June 25, 1934 to June 25, 1973, a water-stage recorder was located at the present site and datum, and from June 26, 1973 to October 13, 1974, a non-recording gage was located at present site and datum.
COOPERATION - City of Macon and Bibb County EMA.
REMARKS -

For period 10/01/2013-12/17/2015: Discharge records fair, except for periods of estimated discharge, which are poor. Gage height records fair.
For period 12/18/2015-03/16/2016: Discharge records poor. Gage height records poor.
For period 03/17/2016-08/01/2018: Discharge records poor. Gage height records good.
For period 08/02/2018-10/21/2020: Discharge records poor. Gage height records poor.

Flow regulated by Lloyd Shoals Reservoir since November 1910; records of reservoir contents not available prior to October 1929. Records of chemical analyses for the water years 1968-73 are published in reports of the U.S. Geological Survey. Statistics prior to regulation are available upon request.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood of January 19, 1925, reached a stage of 26.0 feet, from flood marks at Central of Georgia Railroad bridge, 500 feet downstream, discharge 72,500 cfs; minimum gage-height observed, -1.0 feet October 5, 1924, at site and datum then in use.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 107,000 cfs, July 6, 1994; maximum gage height recorded, 35.40 feet, July 6, 1994; minimum daily discharge, 128 cfs, October 24, 1954.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - October 2007 to October 2017.
INSTRUMENTATION - Tipping-bucket raingage.