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Water-Year Summary for Site 03453500

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Available Parameters
00060 Discharge(Mean,Max.,Min.)  
00065 Gage height(Mean,Min.,Max.)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
03453500 FRENCH BROAD RIVER AT MARSHALL, NC
LOCATION - Lat 35°47'11", long 82°39'39" referenced to North American Datum of 1983, Madison County, NC, Hydrologic Unit 06010105, on right bank 0.7 mi upstream from Hayes Creek, 1.0 mi downstream of Ivy River, 1.5 mi southeast of Marshall, and at river mile 126.7.
DRAINAGE AREA - 1,332 mi². (measured by TVA from topographic maps, scale 1:24,000). The basin has a large flood plain area (upper part), the majority of which is in cultivation, with steep, sloped areas covered by hardwood forests and dense undercover. It is sparsely populated except for a number of small towns, villages, and the City of Asheville. Basin is located in a varied rainfall area ranging from about 40 inches (lower part) to 80 inches at Rosman (head).
REVISIONS HISTORY -

WSP 1436: 1954, maximum discharge.

Discharge for the period from Oct. 30, 2019 to Nov. 14, 2019, was revised on Feb. 5, 2020 based on changes to the shifting of the stage-discharge rating.

SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1942 to current year.
GAGE - Data collection platform. Datum of gage is 1,646.5 ft. above NAVD of 1988. Satellite telemetry at streamgage.
REMARKS -

Small diversions from tributaries for water supply. Slight diurnal fluctuation and occasional slight regulation at low flow caused by small reservoirs upstream from station. Prior to July 1963, some regulation by Progress Energy Company, Weaver Plant, 15 miles upstream, after November 1986 the same power plant was operated by the Metropolitan Sewage Treatment Plant.

Gage-height records are generally good. Discharge records are generally good except for estimated discharges, which are fair. Additional details on the accuracy of the records can be obtained by contacting the USGS South Atlantic Water Science Center at gs-w-nc_nwisweb_data_inquiries@usgs.gov.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage observed since at least 1791: 22.0 ft, July 16, 1916; discharge: 115,000 ft³/s. Flood of August 30, 1940, reached a stage of 16.6 ft; discharge, 70,000 ft³/s, from high water marks, flood profiles, and studies by Tennessee Valley Authority.