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Water-Year Summary for Site 07025400

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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)  
00065 Gage height(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
07025400 NORTH FORK OBION RIVER NEAR MARTIN, TN
LOCATION - Lat 36°24'18.89", long 88°51'16.95" referenced to North American Datum of 1927, Weakley County, TN, Hydrologic Unit 08010203, on right bank on U.S. Highway 45E, 4.0 miles north of Martin.
DRAINAGE AREA - 372 mi².
REVISIONS HISTORY -

On May 20, 2013, the maximum peak flow for water year 2002 was revised and is documented in the 2012 report http://wdr.water.usgs.gov/wy2012/pdfs/07025400.2012.pdf. 

Discharge for the period August 20, 2021 to October 13, 2021 was revised on March 28, 2022 based on changes to the stage-discharge rating shift in place for this period.

SURFACE-WATER RECORDS
PERIOD OF RECORD - Annual maximum at unknown datum, 1939 to 1967. Periodic measurements of discharge and miscellaneous water-quality data, 1979 to 1987. Annual maximum at present datum, 1997 to 2001. October 2001 to current year.
GAGE - Data collection platform, operated in cooperation with the Memphis District Corps of Engineers.  Datum of gage is 303.19 ft above NAVD of 1988, (Reference Frame NAD_83 (2011) (EPOCH:2010.0000) GEOID18). 

Prior to April 24, 2024, the datum of gage was 303.47 ft NAVD of 1988.

Prior to June 2019, the datum of gage was 303.46 NGVD of 1929.

COOPERATION - Gage operated jointly with the Memphis District U.S. Army Corps of Engineers.
REMARKS - Records good, except for estimated discharges which are considered poor and other periods as noted. The period May 3, 2016 to Jan. 11, 2017, May 24, 2017 to December 12, 2018, June 8, 2020 to October 13, 2021 is considered to be fair.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum discharge for years 1939-2001, 30,300 ft³/s, Nov. 19, 1957, stage 23.05; minimum discharge, 40 ft³/s, Feb. 7, 1946 from reports by Memphis District U.S. Army Corps of Engineers.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 15,200 ft³/s, November 30, 2001, gage height 21.46 ft; minimum discharge 140 ft³/s, August 25, 2007, September 7, 2010, and July 8, 2012.