Bound Brook at Middlesex
New Jersey — Water Level & Flood Stage
Located in Somerset County, New Jersey on the Bound Brook. Live water level data from USGS gauge 01403900, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Minor Flood
9 ft
Action Stage
8.5 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Sep 2, 2021 | 14.11 ft | 5,746 cfs |
| Sep 2, 2021 | 14.11 ft | 5,746 cfs |
| Aug 27, 2011 | 14.01 ft | — |
| Aug 27, 2011 | 14.01 ft | — |
| Sep 16, 1999 | 13.54 ft | 7,840 cfs |
About This Gauge
Get Flood Alerts for Bound Brook
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Bound Brook at Middlesex?
The Bound Brook at Middlesex gauge is maintained by USGS (site 01403900) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Bound Brook at Middlesex?
The NWS-defined flood stage for Bound Brook at Middlesex is 9 feet. Action stage begins at 8.5 feet. Moderate flooding starts at N/A feet, and major flooding at N/A feet.
How do I get alerts when Bound Brook rises?
Download StormCast free on Google Play, go to River Gauges, and add Bound Brook at Middlesex to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Bound Brook at Middlesex gauge located?
The gauge is located in Somerset County, New Jersey at coordinates 40.5850°N, 74.5078°W. USGS site number: 01403900. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Gauge reading affected by nearby construction.