River Conditions
Illustrated map of Rehoboth Bay

River stage

Riegelsville, Delaware River

River level
5.14 ft
Status
Below flood stage
7-day change
+2.08 ft
Recent high
7.94 ft
Recent low
2.90 ft

Last reported 2026-10-13 | NWS RGLN4

30-day change
+1.13 ft
Average
3.92 ft
Readings
122
Data span
122 days
Record crest
38.85 ft

In brief

The Delaware River at Riegelsville, NJ read 5.14 ft on Oct 13, 2026, 9.86 ft below action stage. That is 1.13 ft higher than 30 days earlier.

Source: National Weather Service gauge RGLN4

Water 61 °F (16 °C) · 2 °F warmer than normal for this date

River level timeline

2.63.34.14.85.6SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13HIGH 5.23LOW 2.904.97 ftLAST READING

Stage threshold profile

Action stage 15.00 ftMinor flooding 22.00 ftModerate flooding 26.00 ftMajor flooding 30.00 ft CURRENT 5.14 ft

Highest crests on record

RankCrestDate
1 38.85 ft 1955-08-20
2 35.90 ft 1903-10-10
3 34.07 ft 2005-04-03
4 33.62 ft 2006-06-29
5 32.45 ft 1936-03-19
6 30.95 ft 2004-09-19
7 28.72 ft 1996-01-20
8 28.06 ft 2011-09-09

Flood crests recorded at this gauge by the National Weather Service.

What happens at each level

  1. 14.50 ft

    The entrance to Bull Island State Park is closed. Unsafe to cross over to Treasure Island Scout Camp.

  2. 15.00 ft

    Treasure Island Scout Camp floods.

  3. 18.00 ft

    River Road floods in Pohatcong Township, north of the bridge.

  4. 22.00 ft

    Pohatcong 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.

  5. 26.00 ft

    River 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.

  6. 30.00 ft

    The town of Reigelsville, Pennsylvania begins to flood.

Written by the local National Weather Service forecast office for this exact gauge.

Frequently asked questions

Is the Delaware River flooding at Riegelsville?

No. The Delaware River at Riegelsville is at 5.14 ft, 9.86 ft below action stage.

What is the flood stage at Riegelsville?

The National Weather Service sets action stage 15 ft, minor flooding 22 ft, moderate flooding 26 ft and major flooding 30 ft.

What is the highest the Delaware River has been at Riegelsville?

The highest crest on record is 38.85 ft, on 1955-08-20.

Is the Delaware River high or low right now at Riegelsville?

At 5.14 ft it is higher than 91% of readings over the last 122 days.

How warm is the water at Riegelsville, Delaware River?

The water temperature at Riegelsville, Delaware River is 61 °F (16.3 °C), measured 7:30 pm by USGS, which is 2 °F warmer than normal for this date over the past ten years. It has held steady over the last 24 hours.

Stage and flood information from the NOAA National Weather Service (gauge RGLN4); daily history from the U.S. Geological Survey (site 01457500). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.