River Conditions
Illustrated map of Rehoboth Bay

River stage

Trenton, Delaware River

River level
9.90 ft
Status
Below flood stage
7-day change
+1.31 ft
Recent high
11.54 ft
Recent low
8.13 ft

Last reported 2026-10-13 | NWS TREN4

30-day change
+0.83 ft
Average
9.09 ft
Readings
122
Data span
122 days
Record crest
30.60 ft

In brief

The Delaware River at Trenton, NJ read 9.90 ft on Oct 13, 2026, 7.10 ft below action stage. That is 0.83 ft higher than 30 days earlier.

Source: National Weather Service gauge TREN4

Water 62 °F (17 °C) · 2 °F warmer than normal for this date

River level timeline

8.08.69.29.810.4SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13LOW 8.2510.10 ftLAST READING

Stage threshold profile

Action stage 17.00 ftMinor flooding 20.00 ftModerate flooding 23.00 ftMajor flooding 25.00 ft CURRENT 9.90 ft

Highest crests on record

RankCrestDate
1 30.60 ft 1904-03-08
2 28.60 ft 1955-08-20
3 28.50 ft 1903-10-11
4 25.33 ft 2005-04-04
5 25.09 ft 2006-06-29
6 24.43 ft 1936-03-19
7 23.60 ft 1902-03-02
8 23.41 ft 2004-09-19

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

What happens at each level

  1. 17.00 ft

    PA Route 32 North in Yardley Borough begins to flood between Brown Street and Maple Avenue.

  2. 18.00 ft

    PA Route 32 North is closed between Brown Street and Maple Avenue.

  3. 18.50 ft

    PA Route 32 South at East College Avenue in Yardley borough begins to flood. Water begins to enter Level 1 of the parking garage at the State Capital Building. Sections of Stacey Park in Trenton are closed.

  4. 19.50 ft

    Morgan Avenue in Yardley Borough begins to flood. River Road (PA Rt 32) at East Ferry Road in Lower Makefield Township begins to flood.

  5. 20.00 ft

    Houses on Brown Street in Yardley begin to take on water. Houses on Afton Avenue also take on water. Southbound lanes are closed along stretches of Route 29 in Trenton. Route 32 North is closed in Yardley borough. River Road (Route 32), north of Woodside Road and south of Mt. Eyre Road, in Lower Makefield Township, begins to flood.

  6. 21.50 ft

    Ferry Street in Yardley begins to flood.

  7. 22.00 ft

    Route 32 in Yardley is flooded in both directions. Up to two feet of water covers portions of Morgan Avenue, Brown Street, Maple Avenue, and Fuld Avenue.

  8. 23.00 ft

    North and South Bell Avenues in Yardley begin to flood.

  9. 24.50 ft

    Carr's Lane in Yardley begins to flood.

  10. 25.00 ft

    The Delaware River meets the Delaware Canal, backfilling the Rivermawr and Flats neighborhoods making all roads east of the canal impassable.

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

Frequently asked questions

Is the Delaware River flooding at Trenton?

No. The Delaware River at Trenton is at 9.9 ft, 7.1 ft below action stage.

What is the flood stage at Trenton?

The National Weather Service sets action stage 17 ft, minor flooding 20 ft, moderate flooding 23 ft and major flooding 25 ft.

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

The highest crest on record is 30.6 ft, on 1904-03-08.

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

At 9.9 ft it is higher than 89% of readings over the last 122 days.

How warm is the water at Trenton, Delaware River?

The water temperature at Trenton, Delaware River is 62 °F (16.9 °C), measured 6:00 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 TREN4); daily history from the U.S. Geological Survey (site 01463500). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.