Millstone River at Griggstown NJ
Is Millstone River at Griggstown NJ flooding right now?
Millstone River at Griggstown NJ measured 3.38 ft on 2026-09-11 01:00:00 UTC. That observation was 6.6 ft below its 10 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
3.38 ft
Streamflow
—
Minor flooding here begins at 10 ft, with major flooding at 15 ft. The highest crest on record was 24.21 ft on Sun, Aug 28, 2011.
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 9.5 ft | 6.1 ft below |
| Minor flood | 10 ft | 6.6 ft below |
| Moderate flood | 12 ft | 8.6 ft below |
| Major flood | 15 ft | 11.6 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 24.21 ft | 2011-08-28 |
| 23.36 ft | 2021-09-02 |
| 23.2 ft | 1999-09-16 |
| 22.7 ft | 1971-08-28 |
| 22.16 ft | 2007-04-16 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Pike Run at Belle Mead NJ | 2.5 mi | Somerset County |
| Millstone River at Blackwells Mills NJ | 3.3 mi | Somerset County |
| Royce Brook tributary near Belle Mead NJ | 4.4 mi | Somerset County |
| Royce Brook at Hamilton Road near Manville NJ | 4.6 mi | Somerset County |
| Millstone River at Millstone NJ | 4.6 mi | Somerset 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.