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Water-Year Summary for Site 03498500

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

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

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USGS Water-Year Summary 2022
LOCATION - Lat 35°47'07.93", long 83°53'04.93" referenced to North American Datum of 1927, Blount County, TN, Hydrologic Unit 06010201, on left bank 200 ft above bridge on U.S. Highway 411, 0.8 mi downstream from Crooked Creek, 5.0 mi east of Maryville, and at mile 17.3.
DRAINAGE AREA - 269 mi².
REVISIONS HISTORY - In the summary statistics section of the report for 2011 http://wdr.water.usgs.gov/wy2011/pdfs/03498500.2011.pdf , the Water Years 1951-2011 instantaneous low flow (29 ft³/s on Oct. 17, 2007) was incorrectly footnoted ("b") as being determined from a mark on the crest stage gage. This footnote should have been associated with the maximum peak stage (27.95 ft. on Mar. 28, 1994). The instantaneous low flow should have been footnoted ("c")as also occurring on Oct. 18 and 19, 2007.
PERIOD OF RECORD - July 1951 to current year.
GAGE - Data-collection platform and crest-stage gage. Datum of gage is 850.00 ft above NGVD of 1929.
REMARKS - Diurnal fluctuations of flow caused by small mills above station. The town of Maryville diverts an average of about 4.0 ft³/s (2.6 MGD) for municipal supply 100 ft upstream from gage.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Feb. 25, 1875, reached a stage of 31 ft, discharge, 50,000 ft³/s, and flood of April 1, 1896, reached a stage of 26 ft, discharge, 36,000 ft³/s, from reports by Tennessee Valley Authority.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 42,100 ft³/s, March 28, 1994, from rating curve extended above 14,800 ft³/s, on basis of area-velocity study and road overflow computations, maximum gage height, 27.95 ft., from dross line on pump house; minimum discharge, 29 ft³/s, October 17-19, 2007.