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First Broad River near Casar, NC Flow & Water Level

North Carolina · USGS gauge 02152100 · live data

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About this gauge

USGS gauge 02152100 sits on the First Broad River and reads everything draining 60 square miles of the Upper Broad basin. Its datum sits 899 feet above sea level NAVD88. Daily flow has been on record here since 1959, 67 years of it.

Where this gauge sits in the drainage

No gauged site sits above this one on the mainstem, so this is the first published reading on the river. Downstream the next reading comes from First Broad River at Lawndale, NC at 190 square miles, so what passes this gauge is about 32% of the water measured there.

Normal flows here

The First Broad River runs a median of 61 cfs at this gauge across 67 years of record. March is the fullest month at a median 88 cfs, and September the leanest at 41 cfs. The highest daily mean on record is 5,870 cfs in 2004, and the lowest is 3.9 cfs in 2002.

Median flow by month
MonthMedian flowShare of annual median
Jan75 cfs123%
Feb80 cfs131%
Mar88 cfs144%
Apr84 cfs139%
May75 cfs123%
Jun61 cfs100%
Jul49 cfs80%
Aug47 cfs77%
Sep41 cfs67%
Oct42 cfs69%
Nov48 cfs79%
Dec60 cfs98%

Medians from the USGS daily-statistics record, 1959 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The First Broad River reaches flood stage at this gauge at 19 feet. NWS starts watching it at 16 feet. The highest crest on record is 25 feet, in August 1940.

NWS flood categories
CategoryGage height
Action16 ft
Minor flooding19 ft
Moderate flooding25 ft
Major flooding30 ft
Highest crests on record
WhenCrest
August 194025 ft
September 200419.9 ft
October 197516.7 ft
January 199515.6 ft
August 197015.2 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge CSRN7. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 02152100. Percentile context computed against the gauge's period of record. Not for navigation.

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