Leonard Spring Dam Reservoir Report

Last Updated: January 11, 2026

Leonard Spring Dam, located in Monroe, Indiana, is an Earth dam with a height of 35 feet and a storage capacity of 490 acre-feet.


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Summary

Though the dam was completed in an unspecified year, its last inspection dates back to January 1962, indicating a potential need for further assessment and maintenance. With a high hazard potential and no current condition rating, it is crucial for water resource and climate enthusiasts to keep a close eye on the safety and integrity of this structure.

Despite not being state-regulated or permitted, Leonard Spring Dam poses a significant risk due to its outdated inspection date and lack of condition assessment. With a surface area of 28 acres and a drainage area of 0, the dam is situated in an area where its failure could have far-reaching consequences. Climate change and extreme weather events further emphasize the importance of ensuring the resilience and safety of critical infrastructure such as Leonard Spring Dam.

As advocates for water resource management and climate resilience, it is imperative to push for updated inspections, risk assessments, and emergency preparedness measures for Leonard Spring Dam. By staying informed and engaged with the state agencies responsible for overseeing dam safety, enthusiasts can help mitigate potential hazards and safeguard communities and ecosystems downstream of this important water management structure in Indiana.

Dam Height

35

Surface Area

28

Nid Storage

490

Hazard Potential

High

Nid Height

35
       
Seasonal Comparison

Weather Forecast

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.