Little Walnut Creek Conservancy District - Structure 3 Reservoir Report
Nearby: Little Walnut Creek Conservancy District - Structure 5 Little Walnut Creek Conservancy District Structure #4
Last Updated: December 16, 2025
Located in Putnam, Indiana, the Little Walnut Creek Conservancy District - Structure 3, also known as Anderson Lake, plays a crucial role in flood risk reduction along Leatherman Creek.
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Summary
Built in 1971, this earth dam stands at a height of 34 feet and stretches 1500 feet in length. With a storage capacity of 820 acre-feet and a normal storage level of 77 acre-feet, this structure serves as a vital component in managing water flow and mitigating flood hazards in the area.
Managed by the Local Government, specifically the Indiana Department of Natural Resources, this dam is regularly inspected and maintained to ensure its structural integrity. Despite being classified as having a high hazard potential, its condition is assessed as fair, indicating ongoing efforts to uphold safety standards. With a spillway width of 150 feet and a maximum discharge capacity of 4550 cubic feet per second, this dam is equipped to handle significant water flow during extreme weather events.
For water resource and climate enthusiasts, the Little Walnut Creek Conservancy District - Structure 3 stands as a testament to effective flood risk reduction infrastructure in Indiana. With its strategic location and design features, this dam plays a critical role in safeguarding communities along Leatherman Creek from potential flooding events. As efforts continue to monitor and maintain this structure, its importance in water resource management and climate resilience remains a key focus for local authorities and environmental stakeholders alike.
Year Completed |
1971 |
Dam Length |
1500 |
Dam Height |
34 |
River Or Stream |
LEATHERMAN CREEK |
Primary Dam Type |
Earth |
Surface Area |
14 |
Hydraulic Height |
34 |
Drainage Area |
2.62 |
Nid Storage |
820 |
Structural Height |
34 |
Outlet Gates |
Valve |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
34 |
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.
Little Walnut Creek Conservancy District - Structure 3