Big Brook near Marlboro NJ water level

Name: Big Brook near Marlboro 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, Big Brook, New Jersey, United States

Directions

Normal for mid-October

Water level

9.61ft Steady over the last 24 hours

Measured Oct 19, 2026, 11:20 AM EDT (53 min ago)

Flow: 7.6 cfs

History

7 days

Water level

What this means

Water levels are unremarkable at Big Brook near Marlboro NJ, where the gauge shows 9.61 ft.

The level has held steady over the past 24 hours. The 30-day range is 9.60 ft – 9.77 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Compared with 5 years of daily readings for this time of year. How to read levels

Key numbers

Highest on record: 20.16 ftSeptember 20, 1989

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

What happens at each level

17.00 ft: Water overtops banks and floods adjacent floodplain.
9.61 ft: Right now

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

Highest crests on record

Rank	Level	Date
1	20.16 ft	September 20, 1989
2	19.70 ft	August 28, 2011
3	19.24 ft	August 6, 1990
4	19.14 ft	March 4, 1991
5	18.91 ft	September 1, 2021
6	18.70 ft	December 27, 2012
7	18.53 ft	June 20, 1992
8	18.46 ft	May 1, 2014
9	18.38 ft	March 9, 1998
10	18.36 ft	January 2, 1987

Weather at the gauge

The forecast is not available right now.

Sunrise 07:12 AM Sunset 06:13 PM Daylight 11 hr First quarter 60%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Swimming River near Red Bank NJRiver gauge, Swimming River	5.20 ft	Below flood stage	−0.01 ft	5.2 mi
Deep Run at Old Bridge NJRiver gauge, Deep Run	10.5 cfs	Normal	−3.1 cfs	10 mi
Manalapan Brook at Spotswood NJRiver gauge, Manalapan Brook	10.24 ft	Below flood stage	−0.09 ft	10 mi
Jumping Brook near Neptune City NJRiver gauge, Jumping Brook	4.6 cfs	Normal	−0.8 cfs	11 mi
Shark River near Neptune City NJRiver gauge, Shark River	1.51 ft	Below flood stage	−0.02 ft	11 mi
Manasquan River at Squankum NJRiver gauge, Manasquan River	2.65 ft	Below flood stage	−0.04 ft	11 mi
Manasquan River near Allenwood NJRiver gauge, Manasquan River	7.33 ft	Below flood stage	−0.03 ft	13 mi
Lawrence Brook at Westons Mills NJRiver gauge, Lawrence Brook	15.82 ft	Below flood stage	±0	15 mi

Questions and answers

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 Big Brook near Marlboro NJ today?

On Oct 19, 2026, 11:20 AM EDT, the water level was 9.61 ft. Steady over the last 24 hours.

Is Big Brook near Marlboro NJ rising or falling?

Steady over the last 24 hours.

Is the level of Big Brook near Marlboro NJ normal?

Normal for mid-October. Compared with 5 years of daily readings for this time of year.

What is the highest water level ever recorded at Big Brook near Marlboro NJ?

The highest level on record is 20.16 ft on September 20, 1989.

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.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01407290 (Agency page)
Coordinates: 40.31972, -74.21417 (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	9.61 ft	2026-10-19 15:20	Provisional
Flow	7.6 cfs	2026-10-19 15:20	Provisional

Download

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How to cite

U.S. Geological Survey: Big Brook near Marlboro NJ (usgs:01407290). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-jersey/big-brook-near-marlboro-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