Connecticut River near Dalton water level

Name: Connecticut River near Dalton 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, Connecticut River, New Hampshire, United States

Directions

Below flood stage

Water level

8.40ft Down 0.25 ft over the last 24 hours

Measured Oct 21, 2026, 02:15 AM EDT (59 min ago)

Flow: 1,480 cfs

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to fall to 8.00 ft by Thursday, October 22 at 02:00 PM. Issued Tuesday, October 20 at 10:49 AM by NOAA National Weather Service.

What this means

The Connecticut River near Dalton is at 8.40 ft, in the normal range.

It is 9.60 ft below the flood stage of 18.00 ft.

It has dropped 0.25 ft over the past 24 hours. The forecast expects the river to fall to 8.00 ft by Thursday, October 22 at 02:00 PM. In the last month it has stayed between 8.28 ft and 10.22 ft.

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

Key numbers

Highest on record: 25.60 ftMarch 20, 1936
Forecast peak: 8.30 ftWednesday, October 21 at 02:00 AM

Floating and fishing near Connecticut River near Dalton

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

Flood stage here is 18.00 ft, 9.60 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

25.60 ft: Record flood comparable to the flood of 1936.
25.00 ft: Water reaches US Route 2 Bridge Street in Lancaster, causing major regional travel disruptions. Floodwaters completely isolate several homes.
23.00 ft: Water flows over US Route 3 in Lancaster near Industrial Park Road. Water also reaches US Route 2 Bridge Street.
22.00 ft: Route 135 in Dalton is inundated. Homes flood along Route 135 north of the Johns River.
21.00 ft: In Guildhall, VT, Route 102 floods just north of the Route 2 bridge to Lancaster, as well as near Breault Road at the Washburn Brook crossing. In Dalton, Route 135 floods at the public boat launch. Basements flood at a few residences along Route 135 north of the Johns River.
20.00 ft: Floodwaters cut off access to a few homes along Route 135 in Lancaster. Several riverside camps along Route 135 north of the Johns River are flooded. River Road is underwater between the Mt. Orne Bridge and South Lunenburg.
19.00 ft: Basements of low-lying homes in Dalton and Lancaster are at risk of flooding. Water begins to encroach on Route 135 at the Dalton public boat launch.
18.00 ft: Water inundates campgrounds, agricultural fields, and recreational fields off Bridge Street in Lancaster.
17.00 ft: Minor lowland flooding begins.
8.40 ft: Right now

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

Highest crests on record

Chance of at least minor flooding in October to December: < 5 %.

Rank	Level	Date
1	25.60 ft	March 20, 1936
2	23.70 ft	April 1, 1998
3	23.22 ft	March 19, 1990
4	22.38 ft	March 28, 1953
5	22.25 ft	April 24, 1954
6	22.15 ft	April 17, 2014
7	22.07 ft	April 29, 2011
8	21.40 ft	April 16, 2002
9	21.38 ft	April 25, 2001
10	21.34 ft	May 6, 1972

Weather at the gauge

The forecast is not available right now.

Sunrise 07:10 AM Sunset 05:54 PM Daylight 10 hr, 44 min Waxing gibbous 75%

Map

Other gauges on the Connecticut River

Gauge	Level	Compared with normal	24 hours	Distance
Connecticut River below Indian Stream near PittsburgRiver gauge, Connecticut River	337 cfs	Normal	−31.0 cfs	46 mi
Connecticut River at North StratfordRiver gauge, Connecticut River	3.60 ft	Below flood stage	−0.16 ft	24 mi
Connecticut River at Wells RiverRiver gauge, Connecticut River	2.32 ft	Below flood stage	−0.06 ft	24 mi
Connecticut River at West LebanonRiver gauge, Connecticut River	4.57 ft	Below flood stage	−0.34 ft	60 mi
Connecticut River at North WalpoleRiver gauge, Connecticut River	6.96 ft	Below flood stage	−0.15 ft	96 mi
Connecticut River near NorthfieldRiver gauge, Connecticut River	6,000 cfs	Normal	+1,010 cfs	125 mi
Connecticut River at Montague CityRiver gauge, Connecticut River	6.80 ft	Below flood stage	−0.27 ft	133 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Moose River at VictoryRiver gauge, Moose River	51.2 cfs	Normal	−11.7 cfs	9 mi
Ammonoosuc River at Bethlehem JunctionRiver gauge, Ammonoosuc River	1.60 ft	Below flood stage	−0.08 ft	11 mi
Sleepers River (Site W-5 near St. JohnsburyRiver gauge, Sleepers River (Site W-5	0.54 ft	Below flood stage	−0.03 ft	16 mi
Passumpsic River at PassumpsicRiver gauge, Passumpsic River	2.39 ft	Below flood stage	−0.14 ft	16 mi
East Branch Passumpsic River near East HavenRiver gauge, East Branch Passumpsic River	2.23 ft	Below flood stage	−0.07 ft	18 mi
Upper Ammonoosuc River near GrovetonRiver gauge, Upper Ammonoosuc River	2.21 ft	Below flood stage	−0.22 ft	19 mi
Pope Brook (Site W-3 near North DanvilleRiver gauge, Pope Brook (Site W-3	1.1 cfs	Very low	−0.1 cfs	20 mi
Pope Brook Tributary W-9, near North DanvilleRiver gauge, Pope Brook Tributary W-9	0.1 cfs	Normal	±0	22 mi

Questions and answers

What is flood stage for the Connecticut River near Dalton?

The official flood stage is 18.00 ft. The level is currently 9.60 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 Connecticut River near Dalton today?

On Oct 21, 2026, 02:15 AM EDT, the water level was 8.40 ft. Down 0.25 ft over the last 24 hours.

Is Connecticut River near Dalton rising or falling?

Down 0.25 ft over the last 24 hours. Down 0.95 ft over the last 7 days.

Is the level of Connecticut River near Dalton normal?

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

What is the highest water level ever recorded at Connecticut River near Dalton?

The highest level on record is 25.60 ft on March 20, 1936.

Is Connecticut River near Dalton expected to rise?

The forecast expects the river to fall to 8.00 ft by Thursday, October 22 at 02:00 PM.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01131500 (Agency page)
Coordinates: 44.41006, -71.72064 (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	8.40 ft	2026-10-21 06:15	Provisional
Flow	1,480 cfs	2026-10-21 06:15	Provisional

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How to cite

U.S. Geological Survey: Connecticut River near Dalton (usgs:01131500). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-hampshire/connecticut-river-near-dalton

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