Lamprey River near Newmarket water level

Name: Lamprey River near Newmarket 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, Lamprey River, New Hampshire, United States

Directions

Below flood stage

Water level

1.53ft Down 0.05 ft over the last 24 hours

Measured Oct 21, 2026, 02:15 AM EDT (1 hour ago)

Flow: 87.3 cfs

History

7 days

Water level Minor flood stage

What this means

The Lamprey River near Newmarket is at 1.53 ft, in the normal range.

It is 6.47 ft below the flood stage of 8.00 ft.

It has dropped 0.05 ft over the past 24 hours. In the last month it has stayed between 1.53 ft and 1.75 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: 18.31 ftMay 16, 2006

Floating and fishing near Lamprey River near Newmarket

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

Flood stage here is 8.00 ft, 6.47 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

17.00 ft: Severe flooding occurs in Durham, Newmarket, Lee and Epping.
15.00 ft: Route 152 in Lee floods. In Newmarket, Ashswamp Road and the Twin Rivers Condos flood. Flood waters up to 5 feet deep on Bennett Road.
13.00 ft: Up to 1 foot of water on Route 108 between Durham and Newmarket.
12.00 ft: Homes on Route 108 become isolated. Bennet Road has up to 1 foot of water on it.
11.50 ft: Route 108 starts to flood.
10.00 ft: Bennett Road in Durham starts to flood.
8.00 ft: Minor lowland flooding begins.
1.53 ft: Right now

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

Highest crests on record

Rank	Level	Date
1	18.31 ft	May 16, 2006
2	17.49 ft	April 18, 2007
3	15.14 ft	April 7, 1987
4	14.88 ft	March 20, 1936
5	14.81 ft	March 16, 2010
6	14.59 ft	October 22, 1996
7	12.22 ft	March 15, 1977
8	11.61 ft	March 20, 1983
9	11.54 ft	April 3, 2004
10	11.52 ft	June 15, 1998

Weather at the gauge

The forecast is not available right now.

Sunrise 07:05 AM Sunset 05:53 PM Daylight 10 hr, 48 min Waxing gibbous 75%

Map

Other gauges on the Lamprey River

Gauge	Level	Compared with normal	24 hours	Distance
Lamprey River at Langford Road, at RaymondRiver gauge, Lamprey River	10.4 cfs	Low	−1.3 cfs	13 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Oyster River near DurhamRiver gauge, Oyster River	1.3 cfs	Low	−0.3 cfs	3.2 mi
Winnicut River at Greenland, near PortsmouthRiver gauge, Winnicut River	43.8 cfs	Very high	−1.9 cfs	7 mi
Isinglass River at Rochester Neck Road, near DoverRiver gauge, Isinglass River	64.1 cfs	Normal	−2.9 cfs	9 mi
Exeter River at Haigh Road, near BrentwoodRiver gauge, Exeter River	18.3 cfs	Normal	−2.9 cfs	9 mi
Cocheco River near RochesterRiver gauge, Cocheco River	19.7 cfs	Low	±0	12 mi
Exeter River at Odell Road, near SandownRiver gauge, Exeter River	2.9 cfs	Normal	+0.4 cfs	15 mi
Merrimack River at NewburyportEstuary gauge, Merrimack River	−2.09 ft	Very low	−0.45 ft	20 mi
Spicket River at North SalemRiver gauge, Spicket River	81.0 cfs	Low	−5.0 cfs	22 mi

Questions and answers

What is flood stage for the Lamprey River near Newmarket?

The official flood stage is 8.00 ft. The level is currently 6.47 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 Lamprey River near Newmarket today?

On Oct 21, 2026, 02:15 AM EDT, the water level was 1.53 ft. Down 0.05 ft over the last 24 hours.

Is Lamprey River near Newmarket rising or falling?

Down 0.05 ft over the last 24 hours. Down 0.17 ft over the last 7 days.

Is the level of Lamprey River near Newmarket normal?

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

What is the highest water level ever recorded at Lamprey River near Newmarket?

The highest level on record is 18.31 ft on May 16, 2006.

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:01073500 (Agency page)
Coordinates: 43.10259, -70.95256 (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	1.53 ft	2026-10-21 06:15	Provisional
Flow	87.3 cfs	2026-10-21 06:15	Provisional

Download

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How to cite

U.S. Geological Survey: Lamprey River near Newmarket (usgs:01073500). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-hampshire/lamprey-river-near-newmarket

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