RIVER GAUGE · LAMPREY RIVER
Lamprey River near Newmarket
Rockingham County, New Hampshire
Water level0.82 ft
Flow17 cfs
Last readingSep 16, 2026, 4:15 PM UTC (last recorded)
Action7 ft1,990 cfs
Minor flood8 ft2,500 cfs
Moderate flood12 ft4,990 cfs
Major flood16 ft7,510 cfs
The past week
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What floods at each level
- 17 ft
Severe flooding occurs in Durham, Newmarket, Lee and Epping.
- 15 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 ft
Up to 1 foot of water on Route 108 between Durham and Newmarket.
- 12 ft
Homes on Route 108 become isolated. Bennet Road has up to 1 foot of water on it.
- 11.5 ft
Route 108 starts to flood.
- 10 ft
Bennett Road in Durham starts to flood.
- 8 ft
Minor lowland flooding begins.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| May 16, 2006 | 18.31 ft | 8,970 cfs |
| Apr 18, 2007 | 17.49 ft | 8,450 cfs |
| Apr 6, 1987 | 15.14 ft | 7,570 cfs |
Get an alert when Lamprey River rises
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