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Flat River at Dam near Bahama, NC Flow & Water Level

North Carolina · USGS gauge 02086500 · live data

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About this gauge

USGS gauge 02086500 sits on the Flat River and reads everything draining 168 square miles of the Upper Neuse basin. Its datum sits 256 feet above sea level NAVD88. Daily flow has been on record here since 1927, 72 years of it.

Where this gauge sits in the drainage

Lake Michie at Dam near Bahama, NC sits immediately upstream, so dam releases rather than rainfall set the flow here. Five gauged sites sit upstream of here. The closest is Lake Michie at Dam near Bahama, NC, reading 167 square miles. Downstream the next reading comes from Falls Lake at Interstate 85 near Redwood, NC at 512 square miles, so what passes this gauge is about 33% of the water measured there.

Normal flows here

The Flat River runs a median of 40 cfs at this gauge across 72 years of record. March is the fullest month at a median 157 cfs, and September the leanest at 8.0 cfs. The highest daily mean on record is 10,500 cfs in 1930, and the lowest is 0.0 cfs in 2010.

Median flow by month
MonthMedian flowShare of annual median
Jan92 cfs233%
Feb149 cfs377%
Mar157 cfs397%
Apr118 cfs300%
May57 cfs144%
Jun38 cfs96%
Jul15 cfs38%
Aug13 cfs33%
Sep8.0 cfs20%
Oct10 cfs25%
Nov14 cfs37%
Dec56 cfs142%

Medians from the USGS daily-statistics record, 1927 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The Flat River reaches flood stage at this gauge at 16 feet. NWS starts watching it at 15 feet. The highest crest on record is 23.5 feet, in September 1998.

NWS flood categories
CategoryGage height
Action15 ft
Minor flooding16 ft
Moderate flooding18 ft
Major flooding20 ft
Highest crests on record
WhenCrest
September 199823.5 ft
September 201819.3 ft
March 199818.2 ft
November 201816.8 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge BAHN7. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 02086500. Percentile context computed against the gauge's period of record. Not for navigation.

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