Nivelmap
EN

Neshanic River at Reaville NJ water level

River gauge, Neshanic River, New Jersey, United States

Directions

Right now

Below flood stage

Water level

2.68ft Down 0.05 ft over the last 24 hours

Flow
13.9 cfs
10 20 Highest onrecord 19.47 ft Minor floodstage 6.50 ft

History

History
2.702.752.80ftOct 16Oct 16Oct 17Oct 18Oct 192.702.752.80ftOct 16Oct 17Oct 19
Water level Minor flood stage

What this means

Water levels are unremarkable at Neshanic River at Reaville NJ, where the gauge shows 2.68 ft.

It is 3.82 ft below the flood stage of 6.50 ft.

It is still going down, by 0.05 ft over the past 24 hours. The 30-day range is 2.68 ft – 2.82 ft.

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

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

Key numbers

Highest on record
19.47 ftSeptember 2, 2021

Paddling and fishing conditions

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

For reference, flood stage is 6.50 ft.

What happens at each level

9.00 ft
Route 202 in Flemington is flooded.
6.50 ft
Minor flooding begins. Roads are subject to closures in the vicintiy of the river.
2.68 ft
Right now

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

Highest crests on record

RankLevelDate
119.47 ftSeptember 2, 2021
215.33 ftSeptember 16, 1999
314.66 ftAugust 28, 2011
413.84 ftJanuary 28, 1971
513.57 ftJuly 18, 2021
612.63 ftOctober 19, 1996
712.33 ftJuly 18, 1945
812.21 ftJanuary 28, 1994
911.85 ftJanuary 10, 2024
1011.81 ftAugust 22, 2021

Weather at the gauge

The forecast is not available right now.

Sunrise 07:15 AM Sunset 06:15 PM Daylight 11 hr First quarter 56%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
South Branch Raritan River at Stanton NJRiver gauge, South Branch Raritan River 2.55 ft Below flood stage −0.15 ft 7 mi
Delaware River at Stockton NJRiver gauge, Delaware River 1.21 ft Below flood stage +0.19 ft 9 mi
North Branch Raritan River at South Branch NJRiver gauge, North Branch Raritan River 1.61 ft Below flood stage −0.11 ft 9 mi
Pike Run at Belle Mead NJRiver gauge, Pike Run 1.7 cfs Normal −0.2 cfs 9 mi
Delaware River at Lambertville NJRiver gauge, Delaware River 0.38 ft Below flood stage +0.16 ft 10 mi
North Branch Raritan River near Raritan NJRiver gauge, North Branch Raritan River 2.85 ft Below flood stage −0.08 ft 10 mi
South B Rockaway Creek at Whitehouse Station NJRiver gauge, South B Rockaway Creek 5.8 cfs Low −1.3 cfs 10 mi
Royce Brook at Hamilton Road near Manville NJRiver gauge, Royce Brook 7.4 cfs Very high −1.2 cfs 11 mi

Questions and answers

What is flood stage for the Neshanic River at Reaville NJ?

The official flood stage is 6.50 ft. The level is currently 3.82 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 Neshanic River at Reaville NJ today?

On Oct 19, 2026, 12:15 AM EDT, the water level was 2.68 ft. Down 0.05 ft over the last 24 hours.

Is Neshanic River at Reaville NJ rising or falling?

Down 0.05 ft over the last 24 hours.

Is the level of Neshanic River at Reaville NJ normal?

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

What is the highest water level ever recorded at Neshanic River at Reaville NJ?

The highest level on record is 19.47 ft on September 2, 2021.

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:01398000 (Agency page)
Coordinates
40.47333, -74.82778 (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

ParameterLast valueTime (UTC)Quality
Water level 2.68 ft 2026-10-19 04:15 Provisional
Flow 13.9 cfs 2026-10-19 04:15 Provisional

Download

Embed this gauge

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

How to cite

U.S. Geological Survey: Neshanic River at Reaville NJ (usgs:01398000). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-jersey/neshanic-river-at-reaville-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.