Rivers in New Hampshire

Suncook River at North Chichester

Merrimack County, New HampshireNWS NCHN3USGS 01089500Gray office

Below flood stage
2.82ftStage

Observed Wed, Sep 23, 11:15 AM EDT

Flood stage
7.00 ft
Record crest
15.97 ft2007

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood16.00 ft
Moderate flood12.00 ft
Minor flood7.00 ft
Action6.00 ft
  1. 18.00 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.
  2. 16.00 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.
  3. 14.00 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.
  4. 12.00 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.
  5. 11.00 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.
  6. 9.00 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. 7.00 ftWater up to Bachelder Road in Allenstown. Waterfront campsites impacted, campers should move to higher ground.

Crest history

52 crests on NOAA’s list since 1920.

#DateStage
1April 17, 200715.97 ft
2March 19, 193615.27 ft
3May 14, 200613.55 ft
4April 7, 192313.00 ft
5March 27, 195312.55 ft
6February 11, 197012.50 ft
7April 5, 196012.40 ft
8March 15, 201012.35 ft
9March 14, 197712.19 ft
10December 19, 202312.11 ft
11March 22, 194811.99 ft
12May 10, 195411.88 ft
13February 23, 193711.80 ft
14March 31, 201011.74 ft
15December 24, 202211.54 ft
16April 1, 193411.47 ft
17April 13, 194011.35 ft
18February 26, 201011.34 ft
19April 19, 193311.30 ft
20April 7, 192411.25 ft
21March 10, 194211.03 ft
22April 3, 195911.01 ft
23April 2, 197611.00 ft
24March 19, 196810.80 ft
25April 6, 195210.68 ft

Most recent crests

  • May 11, 2025: 8.22 ft
  • April 13, 2024: 8.68 ft
  • March 8, 2024: 8.71 ft
  • December 19, 2023: 12.11 ft
  • July 17, 2023: 10.53 ft
  • May 2, 2023: 9.91 ft
  • December 24, 2022: 11.54 ft
  • July 30, 2021: 8.80 ft
  • April 27, 2019: 8.35 ft
  • October 31, 2017: 10.30 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Northeast River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.