Cass Pond Dam Reservoir Report
Nearby: Northwood Lake Dam Huckins Mill Dam
Last Updated: December 18, 2025
Cass Pond Dam, also known as Bixby Pond Dam and Philbrick Dam, is a state-regulated structure located in Epsom, New Hampshire.
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Summary
Situated on the Little Suncook River, this earth-type dam serves primarily for recreational purposes, offering a serene environment for water resource and climate enthusiasts to enjoy. With a height of 10 feet and a length of 140 feet, the dam has a maximum storage capacity of 83 acre-feet and a normal storage of 34 acre-feet, covering a surface area of 15 acres.
Despite its low hazard potential, Cass Pond Dam has a poor condition assessment as of the last inspection in May 2018. The dam is under the jurisdiction of the New Hampshire Department of Environmental Services Dam Bureau, which oversees its permitting, inspection, and enforcement. While the risk assessment indicates a moderate level of risk, there are currently no emergency action plans in place. With its picturesque location and potential for improvement, Cass Pond Dam presents an opportunity for conservation efforts and sustainable management practices to ensure its long-term safety and enjoyment for water enthusiasts.
Dam Length |
140 |
Dam Height |
10 |
River Or Stream |
LITTLE SUNCOOK RIVER |
Primary Dam Type |
Earth |
Surface Area |
15 |
Drainage Area |
31 |
Nid Storage |
83 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
10 |
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.
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