Patterson Park Lake Dam Reservoir Report
Nearby: Tanglewood Lake Dam Crosley Lake Dam
Last Updated: December 6, 2025
Patterson Park Lake Dam, located in Jennings, Indiana, is a privately owned structure primarily used for recreation purposes.
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Summary
The dam stands at a height of 30 feet and spans 250 feet in length, with a storage capacity of 21 acre-feet. Despite its low hazard potential, the dam's condition assessment is marked as poor, with the last inspection conducted in December 2014.
The dam, situated on an unnamed tributary of the Muscatatuck River, is regulated and permitted by the Indiana Department of Natural Resources. While the dam does not have a spillway, it is equipped with outlet gates. The risk assessment for the dam is considered high, with a rating of 2, indicating the need for proper risk management measures to ensure the safety and protection of the surrounding area.
With its picturesque location and important role in providing recreational opportunities, Patterson Park Lake Dam serves as a vital resource for the local community. As water resource and climate enthusiasts, it is crucial to monitor and address the dam's poor condition assessment and high risk level to safeguard its structural integrity and prevent any potential hazards in the future.
Dam Length |
250 |
Dam Height |
30 |
River Or Stream |
UNNAMED TRIBUTARY MUSCATATUCK RIVER |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
0.26 |
Nid Storage |
21 |
Outlet Gates |
None |
Hazard Potential |
Low |
Nid Height |
30 |
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.
Patterson Park Lake Dam