Second Broad River near Logan, NC Flow & Water Level
NWS river forecast
| When | Stage | Flow |
|---|
Forecast from the NOAA National Water Prediction Service. Issued a few times a day and only while a forecast is active. Not for navigation.
Last 30 days
About this gauge
USGS gauge 02150495 sits on the Second Broad River and reads everything draining 86 square miles of the Upper Broad basin. Its datum sits 820 feet above sea level NAVD88. Daily flow has been on record here since 1999, 28 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 Broad River near Boiling Springs, NC at 875 square miles, so what passes this gauge is about 10% of the water measured there. It then enters Gaston Shoals Reservoir above Blacksburg, SC, below which releases set the flow.
Normal flows here
The Second Broad River runs a median of 77 cfs at this gauge across 28 years of record. March is the fullest month at a median 105 cfs, and October the leanest at 56 cfs. The highest daily mean on record is 4,010 cfs in 2024, and the lowest is 6.6 cfs in 2002.
| Month | Median flow | Share of annual median |
|---|---|---|
| Jan | 103 cfs | 134% |
| Feb | 98 cfs | 127% |
| Mar | 105 cfs | 136% |
| Apr | 104 cfs | 135% |
| May | 90 cfs | 117% |
| Jun | 68 cfs | 88% |
| Jul | 59 cfs | 77% |
| Aug | 64 cfs | 83% |
| Sep | 57 cfs | 74% |
| Oct | 56 cfs | 73% |
| Nov | 69 cfs | 90% |
| Dec | 84 cfs | 109% |
Medians from the USGS daily-statistics record, 1999 to 2026. A month at 100% is running at its own long-term median.
Flood stages and record crests
The Second Broad River reaches flood stage at this gauge at 22 feet. NWS starts watching it at 15 feet. The highest crest on record is 17.9 feet, in August 1940.
| Category | Gage height |
|---|---|
| Action | 15 ft |
| Minor flooding | 22 ft |
| Moderate flooding | 26 ft |
| Major flooding | 28 ft |
| When | Crest |
|---|---|
| August 1940 | 17.9 ft |
| January 2010 | 16.4 ft |
| September 2004 | 15.9 ft |
| July 2005 | 15.7 ft |
| April 2003 | 14.9 ft |
Flood categories and crest history from the NOAA National Water Prediction Service, gauge LOGN7. Stages are gage height, not depth. Not for navigation.
Nearby river gauges
- First Broad River near Casar, NC
- Cove Creek near Lake Lure, NC
- Broad River near Boiling Springs, NC
- First Broad River at Lawndale, NC
- Old Catawba River below Catawba Dam near Bridgewater, NC
- Catawba River near Pleasant Gardens, NC
- Catawba River at Sr1223 below Lake James near Bridgewater, NC
- Jacob Fork at Ramsey, NC
- Linville River near Nebo, NC
- Buffalo Creek below Moss Lake Dam near Oak Grove, NC
- Johns River at Arneys Store, NC
- Wilson Creek at Secondary Road 1335 at Adako, NC
Live streamflow and gage height: USGS gauge 02150495. Percentile context computed against the gauge's period of record. Not for navigation.
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