RIVER GAUGE · SMITH RIVER (NH)
Smith River (NH) at Bristol
Merrimack County, New Hampshire
Water level1.91 ft
Flow32 cfs
Last readingSep 16, 2026, 4:30 PM UTC (last recorded)
Action6 ft1,280 cfs
Minor flood8 ft2,380 cfs
Moderate flood12 ft5,000 cfs
Major flood14 ft6,470 cfs
The past week
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What floods at each level
- 16 ft
Smith River Road floods in several locations from Bristol to Danbury.
- 14 ft
Flooding begins on Smith River Road.
- 12 ft
Prime farmland flooded from Bristol to Danbury.
- 8 ft
Minor lowland flooding begins.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Mar 18, 1936 | 16.09 ft | 8,100 cfs |
| May 14, 2006 | 11.41 ft | 4,590 cfs |
| Sep 21, 1938 | 10.77 ft | 5,070 cfs |
Get an alert when Smith River (NH) rises
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