Delaware River at Riegelsville, NJ
River level and flood forecast · Hunterdon County
The river is 17.0 ft below flood stage (22 ft).
Forecast to fall to 4.4 ft by Thu, Oct 15, 2 PM.
Flow: 10,000 cubic feet per second (USGS).
River camera
Watch the time-lapse
Camera by the U.S. Geological Survey. Most take a picture every hour, some every few minutes; many stop at night.
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 3:01 PM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Delaware River at Riegelsville to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 30 ft |
| Moderate flood stage | 26 ft |
| Flood stage | 22 ft |
| Action stage | 15 ft |
| Record crest (August 20, 1955) | 38.85 ft |
What floods at each level
From the National Weather Service, highest first.
- 30 ftThe town of Reigelsville, Pennsylvania begins to flood.
- 26 ftRiver Road in Carpentersville is flooded and is subject to closures. Street flooding begins in Riegelsville at the intersection of PA Route 611 and Sycamore Road.
- 22 ftPohatcong Creek floods Creek Road due to high and backwater from the Delaware River. The Musconetcong River also floods Mount Joy Road due to high and backwater from the Delaware River.
- 18 ftRiver Road floods in Pohatcong Township, north of the bridge.
- 15 ftTreasure Island Scout Camp floods.
- 14.5 ftThe entrance to Bull Island State Park is closed. Unsafe to cross over to Treasure Island Scout Camp.
Highest crests on record
- 38.85 ft — August 20, 1955
- 35.9 ft — October 10, 1903
- 34.07 ft — April 3, 2005
- 33.62 ft — June 29, 2006
- 32.45 ft — March 19, 1936
Recent crests: 22.57 ft (April 9, 2022) · 24.92 ft (September 2, 2021) · 28.06 ft (September 9, 2011) · 24.51 ft (August 29, 2011) · 25.2 ft (March 12, 2011)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (RGLN4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.