Suncook River at North Chichester, NH
River level and flood forecast · Merrimack County
The river is 3.9 ft below flood stage (7 ft).
Flow: 67 cubic feet per second (USGS).
Normal for October 13.
Usual for October 13: 19 to 96 cubic feet per second (the middle half of 70 years).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Suncook River at North Chichester to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 16 ft |
| Moderate flood stage | 12 ft |
| Flood stage | 7 ft |
| Action stage | 6 ft |
| Record crest (April 17, 2007) | 15.97 ft |
What floods at each level
From the National Weather Service, highest first.
- 18 ftFloodwaters 2 to 5 feet deep in Riverside and Jasper Drives in Allenstown, and Bachelder Road in Epsom. Low lying portions of Kings Towne Park and Kings Grant Communities have water depths of 1 to 3 feet deep.
- 16 ftMajor flooding in Riverside Drive and Jasper Drives in Allenstown, Bachelder Road, Kings Towne Park, and Kings Grant Communities in Epsom. Water Street in Epsom floods.
- 14 ftSignificant inundation of Kings Town Park community in Epsom and Riverside Drive in Allenstown. Route 28 floods near the Chichester and Epsom townline. Seasonal campgrounds inundated with upwards of 5 feet of water.
- 12 ftSeveral properties surrounded by floodwaters along Riverside Drive and Bachelder Road with damages likely to items not moved to higher ground. Water up to properties on Jasper Drive in Allenstown. Floodwaters encroach onto low lying properties of Kings Towne Park in Epsom.
- 11 ftFloodwaters surround homes and roads in the Riverside Drive community off Pinewood Road in Allenstown. Water up to Jasper Drive, Bourge Roads, and Albin Avenue.
- 9 ftFlooding occurs at multiple campgrounds in the region. Water approaches homes along Bachelder Road and properties along Riverside Drive in Allenstown. Buck Street in Epsom floods.
- 7 ftWater up to Bachelder Road in Allenstown. Waterfront campsites impacted, campers should move to higher ground.
Highest crests on record
- 15.97 ft — April 17, 2007
- 15.27 ft — March 19, 1936
- 13.55 ft — May 14, 2006
- 13 ft — April 7, 1923
- 12.55 ft — March 27, 1953
Recent crests: 8.22 ft (May 11, 2025) · 8.68 ft (April 13, 2024) · 8.71 ft (March 8, 2024) · 12.11 ft (December 19, 2023) · 10.53 ft (July 17, 2023)
Highest flow on record
12,900 cubic feet per second — March 19, 1936. From the USGS's yearly peaks since 1919.
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (NCHN3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.