Kimball Pond Dam Reservoir Report
Last Updated: December 16, 2025
Kimball Pond Dam, located in Dunbarton, New Hampshire, is a concrete structure completed in 1937 for recreational purposes.
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Summary
The dam stands at a height of 8 feet and has a storage capacity of 481 acre-feet, with a normal storage level of 119 acre-feet. It spans 90 feet in length and is situated on Black Brook, within the Merrimack County. The dam is under the jurisdiction of the New Hampshire Department of Environmental Services Dam Bureau, which regulates its operation, inspection, and enforcement.
Despite its low hazard potential and satisfactory condition assessment, Kimball Pond Dam is subject to regular inspections every 6 years to ensure its safety and integrity. The spillway of the dam is uncontrolled and has a width of 30 feet, allowing for a maximum discharge of 1144 cubic feet per second. The risk assessment for the dam is moderate, indicating a need for ongoing monitoring and potential risk management measures. Overall, Kimball Pond Dam serves as a vital structure for recreational activities while also highlighting the importance of water resource management and climate resilience in the region.
Year Completed |
1937 |
Dam Length |
90 |
Dam Height |
8 |
River Or Stream |
BLACK BROOK |
Primary Dam Type |
Concrete |
Surface Area |
90.6 |
Drainage Area |
6.4 |
Nid Storage |
481 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
8 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Kimball Pond Dam
Kimball Pond boat launch
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