USGS Water-Year Summary 2023
03578000 ELK RIVER NEAR PELHAM, TN
LOCATION - Lat 35°17'48.19", long 85°52'11.19" referenced to North American Datum of 1927, Grundy County, TN, Hydrologic Unit 06030003, on top of left abutment at downstream side of bridge on U.S. Highway 41, 1.1 mi southeast of Pelham, 1.8 mi upstream from Caldwell Creek, and at mile 194.2.
DRAINAGE AREA - 65.6 mi².
REVISIONS HISTORY - WRD TN 1973: 1963(P), 1965(M), 1966(P), 1969(M), 1970-71(P).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1951 to November 1987, November 2000 to current year.
GAGE - Data collection platform, stage sensor, and permanent rain gage. Datum of gage Nov. 30, 1987 to present: 980.997 ft NAVD88 (980.99 NGVD of 1929). Prior to Nov 30, 1987 Datum of gage was 981.62 ft above NGVD of 1929 (levels by U.S. Army Corps of Engineers).
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 15,800 ft³/s, Mar. 16, 1973, gage height, 14.08 ft; minimum discharge, 0.21 ft³/s, Oct. 7, 2008.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - Oct. 1, 2011 to current year.
INSTRUMENTATION - Unshielded, standard 8-inch diameter, tipping-bucket precipitation gage, without heater, mounted on top of gage house tower with the top of the collector approximately 10 ft above ground.