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Water-Year Summary for Site USGS 03518500

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023
LOCATION - Lat 35°21'42.98", long 84°16'44.74" referenced to North American Datum of 1927, Monroe County, TN, Hydrologic Unit 06010204, on right bank .5 mi. upstream from bridge on TN-360, 0.4 mi downstream from Laurel Creek, 0.8 mi east of Tellico Plains, and at mile 28.2.
DRAINAGE AREA - 118 mi².
REVISIONS HISTORY - WSP 1336: 1927-28(M), 1936, 1940, 1944. On August 20, 2014, peak discharge for water years 2010 through 2013 were revised and supersedes information published in the 2010 through 2013 reports.
PERIOD OF RECORD - Records available: July 20, 1925 to Sep. 30, 1927; Oct. 1, 1930 to Feb. 1982; Dec. 1, 2000 to present. Records obtained from a gage 0.5-miles upstream Oct. 1, 1927 to Sep. 30, 1930 and published as Tellico River near Tellico Plains, TN.
GAGE - Data collection platform. Datum of gage is 846.397 ft NAVD88. July 20, 1925 to Sept. 30, 1927, nonrecording gage at same site and datum. Oct. 1, 1927, to Sept. 30, 1930, nonrecording gage at site 0.5 mi upstream at datum 8.29 ft higher.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in May 1840 reached a stage of 15 ft, discharge, about 21,500 ft³/s, from reports of Tennessee Valley Authority.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge of 19,900 ft³/s, Mar. 16, 1973, from rating curve extended above 12,000 ft³/s on basis of slope-area measurements of peak flow; maximum gage height, 14.18 ft, from dross line in well; minimum discharge 12 ft³/s, Sept. 9-11, 2007.