Stony Brook at Princeton NJ
Is Stony Brook at Princeton NJ flooding right now?
Stony Brook at Princeton NJ measured 1.66 ft on 2026-09-11 01:30:00 UTC. That observation was 7.3 ft below its 9 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
1.66 ft
Streamflow
16 cfs
Minor flooding here begins at 9 ft, with major flooding at 14 ft. The highest crest on record was 16.23 ft on Sun, Aug 28, 2011.
Streamflow outlook
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 8 ft | 6.3 ft below |
| Minor flood | 9 ft | 7.3 ft below |
| Moderate flood | 11 ft | 9.3 ft below |
| Major flood | 14 ft | 12.3 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 16.23 ft | 2011-08-28 |
| 14.26 ft | 1971-08-28 |
| 14.02 ft | 1999-09-16 |
| 12.48 ft | 2021-08-22 |
| 12.27 ft | 1996-01-19 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Millstone River at Plainsboro NJ | 3.6 mi | Middlesex County |
| Millstone River at Carnegie Lake at Princeton NJ | 4.1 mi | Middlesex County |
| Assunpink Creek near Clarksville NJ | 4.4 mi | Mercer County |
| Assunpink Creek below STP near Mercerville NJ | 6.4 mi | Mercer County |
| Shabakunk C at Sylva Lake Dam at Ewingville NJ | 6.4 mi | Mercer County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.