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Water-Year Summary for Site 02087183

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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(Max.,Min.,Mean)  
00065 Gage height(Max.,Min.,Mean)  

Water year 2020: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2020
LOCATION - Lat 35°56'24", long 78°34'51" referenced to North American Datum of 1983, Wake County, NC, Hydrologic Unit 03020201, on right bank 300 ft downstream from Falls Lake Dam, and 0.3 mi northwest of Falls.
DRAINAGE AREA - 771 mi².
REVISIONS HISTORY - WDR NC-91-1: Drainage area. WRD NC 96-1: 1991-95 (annual maximum discharges and gage heights)
PERIOD OF RECORD - July 1970 to current year.
GAGE - Water-stage recorder. Datum of gage is 194.69 ft above National Geodetic Vertical Datum of 1929. Prior to October 1, 1990, water-stage recorder at site 0.4 mi downstream at 182.62 ft. Satellite telemetry at streamgage.
REMARKS - Flow regulated by Falls Lake (station 02087182). June 5, 1980, to May 6, 1981, flows affected by incidental storage in Falls Lake, under construction; May 6, 1981, to January 13, 1983, gates closed and Falls Lake partially filled to provide storage for City of Raleigh water supply; January 13, 1983, gates closed and normal pool elevation, 250.1 ft, reached December 7, 1983.
For Water Year 2014: Records fair.
For Water Year 2015: Records good.
For Water Year 2016: Records fair, except those for estimated daily discharge, which is poor.
|For Water Year 2017: Records fair, except those for estimated discharges, which are poor.
For Water Year 2018: Records fair, except those for estimated discharges, which are poor.
For Water Year 2019: Records good.
For Water Year 2020: Records good.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in September 1945 reached an elevation of 216.1 ft; discharge, 23,300 ft³/s at bridge 0.4 mi upstream, from information provided by the U.S. Army Corps of Engineers.
EXTREMES FOR PERIOD OF RECORD - [Post Regulation] Maximum gage-height and discharge for period of record may have been higher during period of estimated record, August 27-September 30, 1996. Maximum discharges due to regulation.
EXTREMES FOR PERIOD PRIOR TO REGULATION - Prior to regulation, maximum discharge: 13,600 ft³/s, July 17, 1975; gage height: 25.21 ft; minimum discharge: 4.6 ft³/s, September 24, 1980; gage height: 2.13 ft, at site then in use.