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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
03588500 SHOAL CREEK AT IRON CITY, TN
LOCATION - Lat 35°01'26.54", long 87°34'44.43" referenced to North American Datum of 1927, Lawrence County, TN, Hydrologic Unit 06030005, on right downstream bank at bridge, on county road, 400 ft downstream from Holly Creek, 1,350 ft upstream from Louisville and Nashville Railroad bridge, 1,350 ft northeast of Iron City Post Office, and at mile 22.3.
DRAINAGE AREA - 348 mi².
REVISIONS HISTORY - WSP 823: Drainage area. WSP 1113: 1927(M). WSP 1436: 1926(M), 1927-29, 1930(M), 1932, 1933(M). Gage height and discharge data for the period February 15 to April 19, 2022, were revised on March 2, 2023.
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1925 to September 1994, October 2000 to current year.
GAGE -
Data collection platform and pressure sensor. Datum of gage is 534.21 ft above NAVD of 1988, (Reference Frame NAD_83 (2011) (EPOCH:2010.0000), (GEOID18).
Prior to March, 19, 2024, the datum of gage was 534.22 NGVD of 1929. Prior to Feb. 25, 1931, nonrecording gage at railroad bridge, 1350 ft downstream at datum 0.85 ft. lower. Feb. 25, 1931, to Sept. 30, 1933, nonrecording gage at site 825 ft downstream and Oct. 1, 1933, to Sept. 30, 1957, water-stage recorder at site 750 ft downstream at datum 0.69 ft higher.
REMARKS - Prior to January 1951, diurnal fluctuation at low flow caused by powerplant near Lawrenceburg.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in March 1902 reached a stage about 3 ft higher than that of Mar. 21, 1955, from information by local residents.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 132,000 ft³/s, Mar. 21, 1955, from rating curve extended above 50,000 ft³/s on basis of slope-area measurement, gage height, 27.25 ft, datum then in use; minimum discharge, 38 ft³/s, Aug. 31, 1943.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - Temporary precipitation data from Oct. 23, 1987 - Sept. 30, 1998; Oct. 1, 1989 - Sept. 30, 1991; Dec. 1, 1993 - Jan 29, 1997; Oct. 1, 2000 - Sept. 30, 2012; Oct. 1, 2014 - Dec. 9, 2015.
Permanent precipitation data from Oct. 1, 2012 - Sept. 30, 2013. Discontinued Dec. 9, 2015.
INSTRUMENTATION - Tipping bucket precipitation gage and data collection platform. Satellite telemetry at station. Temporary precipitation data.
