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Ashuelot River at West Swanzey water level

River gauge, Ashuelot River, New Hampshire, United States

Directions

Right now

Below flood stage

Water level

6.02ft Down 0.06 ft over the last 24 hours

Flow
247 cfs
8 10 13 Highest onrecord 12.89 ft Minor floodstage 11.00 ft

History

History
6.06.16.26.3ftOct 16Oct 17Oct 18Oct 19Oct 206.06.16.26.3ftOct 16Oct 18Oct 20
Water level Minor flood stage

What this means

The gauge at Ashuelot River at West Swanzey reads 6.02 ft, a normal level.

It is 4.98 ft below the flood stage of 11.00 ft.

The level is falling, down 0.06 ft over the past 24 hours. Over the past 30 days it has moved between 6.02 ft and 6.35 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
12.89 ftJuly 19, 2021

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

The National Weather Service puts flood stage for this gauge at 11.00 ft, still 4.98 ft away.

What happens at each level

12.00 ft
In Winchester, water up to the base of buildings with basements inundated. Water surrounds Dillant Hopkins Airport on the west side in the North Swanzey dependant on backwater from the South Branch.
7.00 ft
Backwater along the South Branch can cause flooding along Carlton Road leading to the covered bridge.
6.02 ft
Right now
5.50 ft
The river inundates lower lying areas near the river in swanzey.

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

Highest crests on record

RankLevelDate
112.89 ftJuly 19, 2021
210.67 ftJuly 17, 2023
39.77 ftMarch 11, 2024
49.01 ftFebruary 24, 2022
55.62 ftOctober 9, 2005
64.61 ftApril 17, 2007
74.51 ftApril 2, 2004
84.41 ftApril 3, 2005
94.37 ftMarch 30, 2003
103.67 ftApril 17, 1996

Weather at the gauge

The forecast is not available right now.

Sunrise 07:09 AM Sunset 06:00 PM Daylight 10 hr, 51 min Waxing gibbous 72%

Map

Other gauges on the Ashuelot River

Gauge Level Compared with normal 24 hours Distance
Ashuelot River near GilsumRiver gauge, Ashuelot River 2.87 ft Below flood stage ±0 12 mi
Ashuelot River below Surry Mount Dam, near KeeneRiver gauge, Ashuelot River 120 cfs Normal +7.0 cfs 9 mi
Ashuelot River above The Branch, at KeeneRiver gauge, Ashuelot River 65.55 ft Below flood stage −0.03 ft 4.1 mi
Ashuelot River at HinsdaleRiver gauge, Ashuelot River 3.85 ft Below flood stage −0.05 ft 10 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Connecticut River near NorthfieldRiver gauge, Connecticut River 4,690 cfs Normal +2,740 cfs 15 mi
Priest Brook near WinchendonRiver gauge, Priest Brook 2.57 ft Below flood stage −0.05 ft 17 mi
Millers River near WinchendonRiver gauge, Millers River 114 cfs Normal +23.7 cfs 18 mi
Connecticut River at North WalpoleRiver gauge, Connecticut River 7.07 ft Below flood stage +0.20 ft 18 mi
Contoocook River at PeterboroughRiver gauge, Contoocook River 1.74 ft Below flood stage −0.13 ft 19 mi
Cold River at High Street, at AlsteadRiver gauge, Cold River 1.86 ft Below flood stage ±0 19 mi

Questions and answers

What is flood stage for the Ashuelot River at West Swanzey?

The official flood stage is 11.00 ft. The level is currently 4.98 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 Ashuelot River at West Swanzey today?

On Oct 20, 2026, 06:45 PM EDT, the water level was 6.02 ft. Down 0.06 ft over the last 24 hours.

Is Ashuelot River at West Swanzey rising or falling?

Down 0.06 ft over the last 24 hours.

Is the level of Ashuelot River at West Swanzey normal?

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

What is the highest water level ever recorded at Ashuelot River at West Swanzey?

The highest level on record is 12.89 ft on July 19, 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:01160350 (Agency page)
Coordinates
42.87147, -72.32814 (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 6.02 ft 2026-10-20 22:45 Provisional
Flow 247 cfs 2026-10-20 22:45 Provisional

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How to cite

U.S. Geological Survey: Ashuelot River at West Swanzey (usgs:01160350). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-hampshire/ashuelot-river-at-west-swanzey

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.