Tihonet Pond #1 Dam Reservoir Report
Last Updated: December 21, 2025
Tihonet Pond #1 Dam, located in Wareham, Massachusetts, is a privately owned structure that serves the primary purpose of irrigation.
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Summary
This earth dam, standing at a height of 16 feet with a hydraulic height of 16 feet, provides storage of up to 980 acre-feet of water. The dam, built on the Wankinco River, has a surface area of 0.15 square miles and drains an area of 5.8 square miles.
The dam is regulated by the Department of Conservation and Recreation in Massachusetts, with state jurisdiction and permitting in place. Despite having a significant hazard potential, the dam's condition assessment in 2017 rated it as fair. Regular inspections are conducted, with a frequency of 5 years, to ensure the safety and integrity of the structure. The risk assessment for Tihonet Pond #1 Dam is moderate, with measures in place to manage potential risks associated with the dam.
Water resource and climate enthusiasts interested in Tihonet Pond #1 Dam can appreciate its crucial role in providing irrigation water while also recognizing the importance of regular inspections and risk management strategies to ensure the safety of the structure and surrounding areas. The dam's location on the Wankinco River adds to its significance in managing water resources in the region, making it a noteworthy site for those interested in water infrastructure and climate resilience efforts.
Dam Length |
350 |
Dam Height |
16 |
River Or Stream |
WANKINCO RIVER |
Primary Dam Type |
Earth |
Surface Area |
0.15 |
Hydraulic Height |
16 |
Drainage Area |
5.8 |
Nid Storage |
980 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
16 |
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.
Tihonet Pond #1 Dam