Bottom Lake Dam Reservoir Report
Last Updated: January 11, 2026
Bottom Lake Dam, located in Johnson County, Indiana, was completed in 1975 by the USDA NRCS and is primarily used for recreation.
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Summary
This private dam stands at a height of 17 feet and has a length of 290 feet, providing a storage capacity of 79 acre-feet. Situated on the TR-BLUFF CREEK, the dam poses an undetermined hazard potential and has not been rated for its condition assessment.
Despite being a private structure, Bottom Lake Dam falls under the jurisdiction of the state of Indiana and is not regulated or inspected by any state agency. The dam's purpose is solely for recreational use, with no associated locks or spillways. While the dam's emergency action plan status and risk assessment remain unknown, its location in the Louisville District underlines its significance in water resource management within the region. Encompassing a surface area of 3 acres, Bottom Lake Dam serves as a notable landmark for water resource and climate enthusiasts seeking to explore the diverse dam structures in the area.
Year Completed |
1975 |
Dam Length |
290 |
Dam Height |
17 |
River Or Stream |
TR-BLUFF CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
17 |
Nid Storage |
79 |
Structural Height |
17 |
Hazard Potential |
Undetermined |
Nid Height |
17 |
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.
Bottom Lake Dam