Twin Beach Dam Reservoir Report
Nearby: Izaak Walton Lake Jon Bowles Lake
Last Updated: December 22, 2025
Twin Beach Dam, located in Clay County, Indiana, is a privately owned structure with a primary purpose of recreation.
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Summary
Completed in 1956, this earth dam stands at a height of 22 feet and stretches 625 feet in length. It impounds Otter Creek and provides a storage capacity of 86 acre-feet, with a normal storage capacity of 56 acre-feet. Despite its low hazard potential and fair condition assessment, the dam has a high risk level of 2 due to certain factors.
Managed by the Indiana Department of Natural Resources, Twin Beach Dam is state-regulated and undergoes regular inspections, with the last one conducted in August 2016. While the dam does not have a spillway, it does not pose a significant threat to downstream areas. The surrounding surface area of 9.2 acres makes it an attractive recreational spot for enthusiasts to enjoy activities such as fishing, boating, and picnicking. However, there is room for improvement in terms of risk management measures to address the identified high-risk factors associated with the dam.
In the realm of water resource and climate enthusiasts, Twin Beach Dam serves as an intriguing case study of a privately owned recreational dam with certain risk factors to be managed. With its location in a scenic area along Otter Creek, the dam presents opportunities for both recreation and conservation efforts. As stakeholders continue to monitor and assess the dam's condition, there is a potential for implementing enhanced risk management measures to ensure the safety and sustainability of this important water resource infrastructure.
Year Completed |
1956 |
Dam Length |
625 |
Dam Height |
22 |
River Or Stream |
OTTER CREEK |
Primary Dam Type |
Earth |
Surface Area |
9.2 |
Hydraulic Height |
22 |
Drainage Area |
0.09 |
Nid Storage |
86 |
Structural Height |
22 |
Outlet Gates |
None |
Hazard Potential |
Low |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big Raccoon Creek At Coxville
|
128cfs |
Wabash River At Terre Haute
|
2250cfs |
Eel River At Bowling Green
|
145cfs |
Wabash River At Montezuma
|
2290cfs |
Mill Creek Near Cataract
|
57cfs |
Big Raccoon Creek Near Fincastle Ind
|
89cfs |
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.
Twin Beach Dam