Lake Frank Reservoir Report

Last Updated: December 6, 2025

Lake Frank, located in Pike, Indiana, is a privately owned reservoir primarily used for recreation.


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Summary

Built in 1973, this earthen dam stands at 26 feet tall and spans 425 feet in length, holding a normal storage capacity of 68 acre-feet of water over a surface area of 14.5 acres. The dam is regulated by the Indiana Department of Natural Resources, with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations.

Although the hazard potential is considered low and the condition assessment is fair, the risk assessment for Lake Frank is high, indicating a need for vigilant risk management measures. With a maximum discharge capacity of 1176 cubic feet per second, the dam's emergency action plan and inundation maps are areas that may require further attention. Despite these risk factors, Lake Frank remains a popular destination for water resource and climate enthusiasts seeking outdoor recreation opportunities in Indiana's scenic landscape.

Year Completed

1973

Dam Length

425

Dam Height

26

River Or Stream

UNNAMED TRIBUTARY ROCK CREEK

Primary Dam Type

Earth

Surface Area

14.5

Drainage Area

0.47

Nid Storage

68

Outlet Gates

None

Hazard Potential

Low

Nid Height

26
       
Seasonal Comparison

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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.