Peters Brook at Mercer St at Somerville NJ water level

Name: Peters Brook at Mercer St at Somerville 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, Peters Brook, New Jersey, United States

Directions

Latest reading

Water level

1.77ft Steady over the last 24 hours

Measured Oct 20, 2026, 11:00 AM EDT (1 hour ago)

History

7 days

Water level

What this means

The U.S. Geological Survey has Peters Brook at Mercer St at Somerville NJ at 1.77 ft. There is no published reference for this river yet, so we can't say whether that is high or low for the season.

It has barely moved over the past 24 hours. The 30-day range is 1.77 ft – 1.82 ft.

The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels

Key numbers

Highest on record: 13.97 ftSeptember 16, 1999

Paddling and fishing conditions

Compare today with the chart before you go; local outfitters often know which stage suits their stretch.

Highest crests on record

Rank	Level	Date
1	13.97 ft	September 16, 1999
2	9.54 ft	October 19, 1996
3	9.29 ft	October 8, 2005
4	9.08 ft	January 28, 1994
5	8.55 ft	April 30, 2014

Weather at the gauge

The forecast is not available right now.

Sunrise 07:15 AM Sunset 06:12 PM Daylight 10 hr, 57 min Waxing gibbous 69%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Raritan River at Manville NJRiver gauge, Raritan River	4.25 ft	Below flood stage	−0.03 ft	2.2 mi
West Branch Middle Brook near Martinsville NJRiver gauge, West Branch Middle Brook	2.02 ft	Below flood stage	±0	2.9 mi
North Branch Raritan River near Raritan NJRiver gauge, North Branch Raritan River	2.82 ft	Below flood stage	−0.02 ft	3.3 mi
Millstone River at Weston NJRiver gauge, Millstone River	1.80 ft	Below flood stage	−0.12 ft	3.4 mi
North Branch Raritan River at North Branch NJRiver gauge, North Branch Raritan River	3.10 ft	Below flood stage	−0.02 ft	3.5 mi
Middle Brook at Bound Brook NJRiver gauge, Middle Brook	4.10 ft	Below flood stage	±0	3.6 mi
Raritan River below Calco Dam at Bound Brook NJRiver gauge, Raritan River	17.17 ft	Below flood stage	−0.15 ft	3.9 mi
North Branch Raritan River at South Branch NJRiver gauge, North Branch Raritan River	1.56 ft	Below flood stage	−0.02 ft	4.0 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 Peters Brook at Mercer St at Somerville NJ today?

On Oct 20, 2026, 11:00 AM EDT, the water level was 1.77 ft. Steady over the last 24 hours.

Is Peters Brook at Mercer St at Somerville NJ rising or falling?

Steady over the last 24 hours.

Is the level of Peters Brook at Mercer St at Somerville NJ normal?

The agency publishes no normal range for this gauge yet, so we show the trend only.

What is the highest water level ever recorded at Peters Brook at Mercer St at Somerville NJ?

The highest level on record is 13.97 ft on September 16, 1999.

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:01400360 (Agency page)
Coordinates: 40.57500, -74.61583 (WGS84)
Vertical datum: NGVD29
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	1.77 ft	2026-10-20 15:00	Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

<iframe src="https://nivelmap.com/embed/16093?lang=en" width="360" height="230" style="border:0;max-width:100%" loading="lazy" title="Peters Brook at Mercer St at Somerville NJ water level"></iframe>

How to cite

U.S. Geological Survey: Peters Brook at Mercer St at Somerville NJ (usgs:01400360). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-jersey/peters-brook-at-mercer-st-at-somerville-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