Blast & Cast Pond Dam Reservoir Report
Nearby: Shepard's Dam Windsorville Pond Dam
Last Updated: December 6, 2025
Blast & Cast Pond Dam, located in South Windsor, Connecticut, is a private earth dam built in 1953 primarily for recreation purposes.
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Summary
The dam, standing at a height of 20 feet and stretching 320 feet in length, creates a serene pond known by several names including Blast & Cast Pond and Sheppard Pond. The dam holds a storage capacity of 75 acre-feet and covers an area of 5 acres, drawing water from the Dry Brook.
Managed by the Connecticut Department of Energy and Environmental Protection (DEEP), the Blast & Cast Pond Dam is classified as a significant hazard with a satisfactory condition assessment as of June 2016. The dam features uncontrolled spillways and has undergone inspections every 7 years to ensure its safety and integrity. While the risk assessment for the dam is moderate, no emergency action plan has been prepared to date, highlighting the importance of ongoing monitoring and maintenance to mitigate potential risks associated with the dam.
For water resource and climate enthusiasts, the Blast & Cast Pond Dam serves as a fascinating example of a privately owned recreational structure that contributes to the local ecosystem. With its stone core and satisfactory condition, the dam stands as both a functional element for water storage and a recreational attraction. As climate change continues to impact water resources, understanding the management and maintenance of dams like Blast & Cast Pond becomes crucial in ensuring their long-term sustainability and safety for the surrounding community.
Year Completed |
1953 |
Dam Length |
320 |
Dam Height |
20 |
River Or Stream |
DRY BROOK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Drainage Area |
1.47 |
Nid Storage |
75 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
20 |
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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