Manasquan River near Allenwood NJ water level

Name: Manasquan River near Allenwood NJ water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Manasquan River, New Jersey, United States

Directions

Below flood stage

Water level

7.33ft Steady over the last 24 hours

Measured Oct 20, 2026, 06:15 PM EDT (39 min ago)

Flow: 14.0 cfs
Water temperature: 54 °F

History

7 days

Water level Minor flood stage

What this means

The Manasquan River near Allenwood NJ is at 7.33 ft, in the normal range.

It is 7.17 ft below the flood stage of 14.50 ft.

It has barely moved over the past 24 hours. In the last month it has stayed between 7.27 ft and 7.71 ft.

Fall is often low-water season on rivers, until steadier rain returns. The water temperature at the gauge is 54 °F.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 20.38 ftAugust 28, 2011

Floating and fishing near Manasquan River near Allenwood NJ

Normal flows mean predictable rapids and good access at most put-ins.

Flood stage here is 14.50 ft, 7.17 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

18.00 ft: Flooding expands on Hospital and Lakewood-Allenwood Roads. The roads are closed.
17.00 ft: Hospital Road and Lakewood-Allenwood Road are subject to partial or full lane closures.
14.50 ft: Walking and riding trails as well as as parking lots are flooded in Allaire State Park.
13.00 ft: The river overflows out of its banks and floods open land in Allaire State Park.
7.33 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Rank	Level	Date
1	20.38 ft	August 28, 2011
2	16.97 ft	October 14, 2005
3	16.57 ft	May 1, 2014
4	16.56 ft	May 28, 2018
5	16.43 ft	December 27, 2012
6	16.22 ft	November 25, 2018
7	16.04 ft	March 14, 2010
8	15.87 ft	March 9, 1998
9	15.85 ft	April 16, 2007
10	15.70 ft	December 19, 2023

Weather at the gauge

Rain in the last 3 days: 0.11 in. Rain that falls upstream can take hours or days to show up at a river gauge.

20 Tue 67° 46° – Wind 15 mph

21 Wed 60° 49° – Wind 16 mph

22 Thu 66° 45° – Wind 15 mph

23 Fri 58° 51° – Wind 17 mph

24 Sat 62° 47° – Wind 7 mph

25 Sun 65° 47° – Wind 7 mph

26 Mon 69° 49° – Wind 9 mph

Forecast: Open-Meteo

Sunrise 07:13 AM Sunset 06:11 PM Daylight 10 hr, 58 min Waxing gibbous 72%

Map

Other gauges on the Manasquan River

Gauge	Level	Compared with normal	24 hours	Distance
Manasquan River at Squankum NJRiver gauge, Manasquan River	2.63 ft	Below flood stage	−0.02 ft	2.0 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
North Branch Metedeconk River near Lakewood NJRiver gauge, North Branch Metedeconk River	3.10 ft	Below flood stage	−0.05 ft	4.1 mi
Shark River near Neptune City NJRiver gauge, Shark River	1.50 ft	Below flood stage	−0.01 ft	4.5 mi
Jumping Brook near Neptune City NJRiver gauge, Jumping Brook	4.3 cfs	Normal	−0.3 cfs	4.9 mi
Swimming River near Red Bank NJRiver gauge, Swimming River	5.19 ft	Below flood stage	±0	12 mi
Toms River near Toms River NJRiver gauge, Toms River	3.87 ft	Below flood stage	−0.13 ft	12 mi
Big Brook near Marlboro NJRiver gauge, Big Brook	7.6 cfs	Normal	+0.3 cfs	13 mi
Cedar Creek at Western Blvd near Lanoka Harbor NJRiver gauge, Cedar Creek	58.5 cfs	Normal	−3.0 cfs	19 mi
Manalapan Brook at Spotswood NJRiver gauge, Manalapan Brook	10.16 ft	Below flood stage	−0.05 ft	22 mi

Questions and answers

What is flood stage for the Manasquan River near Allenwood NJ?

The official flood stage is 14.50 ft. The level is currently 7.17 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Manasquan River near Allenwood NJ today?

On Oct 20, 2026, 06:15 PM EDT, the water level was 7.33 ft. Steady over the last 24 hours.

Is Manasquan River near Allenwood NJ rising or falling?

Steady over the last 24 hours.

Is the level of Manasquan River near Allenwood NJ normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Manasquan River near Allenwood NJ?

The highest level on record is 20.38 ft on August 28, 2011.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01408029 (Agency page)
Coordinates: 40.14667, -74.12222 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	7.33 ft	2026-10-20 22:15	Provisional
Flow	14.0 cfs	2026-10-20 22:15	Provisional
Water temperature	54 °F	2026-10-20 22:15	Provisional

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How to cite

U.S. Geological Survey: Manasquan River near Allenwood NJ (usgs:01408029). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-jersey/manasquan-river-near-allenwood-nj

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer