USGS Water-Year Summary 2024

03465500 NOLICHUCKY RIVER AT EMBREEVILLE, TN

LOCATION - Lat 36°10'35", long 82°27'27" referenced to North American Datum of 1927, Washington County, TN, Hydrologic Unit 06010108, on left bank, at Embreeville, 1,000 ft upstream from bridge on State Highway 81, 3 mi northwest of Erwin, 5.2 mi downstream from North Indian Creek, and at mile 89.0.

DRAINAGE AREA - 805 mi².

REVISIONS HISTORY - WSP 803: 1935(M). WSP 823: Drainage area. WSP 1336: 192l-24, 193l(M).

SURFACE-WATER RECORDS

PERIOD OF RECORD - September 1900 to May 1901 (published as "near Chucky Valley"), October 1919 to current year. Monthly discharge only October 1919 to June 1920, published in WSP 1306.

GAGE - Data collection platform. Datum of gage is 1,518.858 ft above NAVD of 1988. September 1, 1900 to May 21, 1901, nonrecording gage at site 3 mi downstream at different datum, destroyed by flood of May 21, 1901. July 1, 1920 to September 30, 1931, nonrecording gage at bridge 2,000 ft downstream at datum 6.33 ft lower.

REMARKS - Slight regulation from mining operations upstream.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood of May 21, 1901, reached a stage of 24 ft, discharge, 120,000 ft³/s, present site and datum, from reports of Tennessee Valley Authority.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 110,000 ft³/s, November 6, 1977, from rating curve extended above 48,000 ft³/s on basis of contracted opening and slope-area measurement of peak flow, maximum stage, 21.52 ft, November 7, 1977; minimum discharge 85 ft³/s, September 8-9, 1925.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - April 2010 to September 2013.