Dole Marsh Dam is an earth dam located in Rockingham County, New Hampshire, built in 1977. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 8 ft8 ft tall and 250 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Dole Marsh Dam
The primary purpose of Dole Marsh Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Nh Fish and Game Department (state). It impounds the Unnamed Brook near Northwood.
The dam stands 8 feet tall and stretches 250 feet across, creates a reservoir covering 27 acres, has a maximum storage capacity of 110 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1977, the structure is 49 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 11/07/2022.
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Location
| State | New Hampshire |
| County | Rockingham |
| Nearest City | Northwood |
| River/Stream | Unnamed Brook |
| Coordinates | 43.17410, -71.18910 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 250 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 110 acre-ft |
| Max Storage | 110 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 211 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Nh Fish and Game Department |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/07/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00530 |
| Federal ID | NH00530 |
| More Info | State Dam Safety Program |