Kimball Lake Dam is an earth dam located in Merrimack County, New Hampshire, built in 1930. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 7 ft7 ft tall and 110 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 Kimball Lake Dam
The primary purpose of Kimball Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town of Hopkinton (local government). It impounds the Kimball Lake near Hopkinton.
The dam stands 7 feet tall and stretches 110 feet across, creates a reservoir covering 27 acres, has a maximum storage capacity of 292 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1930, the structure is well-established, with more than 75 years of service.
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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 11/15/2017.
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Location
| State | New Hampshire |
| County | Merrimack |
| Nearest City | Hopkinton |
| River/Stream | Kimball Lake |
| Coordinates | 43.18880, -71.66610 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 110 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 292 acre-ft |
| Max Storage | 292 acre-ft |
| Normal Storage | 58 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 583 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Hopkinton |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 11/15/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00208 |
| Federal ID | NH00208 |
| More Info | State Dam Safety Program |