USGS Water-Year Summary 2019
02085500 FLAT RIVER AT BAHAMA, NC
LOCATION - Lat 36°10'58", long 78°52'44" referenced to North American Datum of 1983, Durham County, NC, Hydrologic Unit 03020201, on right bank 0.5 mi upstream from Lake Michie, 1.2 mi upstream from bridge on Secondary Road 1616, 1.2 mi north of Bahama, and 1.5 mi upstream from Dial Creek.
DRAINAGE AREA - 149 mi².
- WSP 1333: 1926, 1928(M), 1938, 1946. WDR NC-81-1: Drainage area.
PERIOD OF RECORD - July 1925 to current year.
GAGE - Water-stage recorder and concrete control. Datum of gage is 346.85 ft above National Geodetic Vertical Datum of 1929. Prior to October 22, 1925, nonrecording gage at present site at 346.27 ft. Satellite telemetry at streamgage.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge for period of record, 33800 ft³/s, from rating curve extended above 18,000 ft³/s, on basis of slope-conveyance measurement of peak flow; maximum gage height, 17.26 ft, September 09, 1996; from high-water mark inside gage shelter as a result of Hurricane Fran.