Usi - Reflection Lake Dam Reservoir Report
Last Updated: December 14, 2025
Usi - Reflection Lake Dam, located in Vanderburgh, Indiana, is a privately owned structure constructed in 1970 by HIRONIMUS-KNAPP-GIVEN-ASSOCIATES.
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Summary
This Earth type dam stands at a height of 35 feet and spans a length of 400 feet, with a storage capacity of 135 acre-feet. Situated on an unnamed tributary of Bayou Creek, this dam serves as a vital resource for water management in the region, with a normal storage capacity of 71 acre-feet and a maximum discharge rate of 783 cubic feet per second.
The dam's high hazard potential is mitigated by its satisfactory condition assessment as of 2007, and its emergency action plan is under regular inspection with a frequency of every two years. The spillway, classified as uncontrolled, features valve outlet gates for water release. Despite its moderate risk level, the dam is regulated and inspected by the Indiana Department of Natural Resources, ensuring its structural integrity and operational safety. The area surrounding the dam covers a surface area of 7.6 acres, with a drainage area of 0.2 square miles.
Usi - Reflection Lake Dam plays a crucial role in water resource management in Indiana, providing essential flood control and water storage capabilities. As a key piece of infrastructure in the region, this dam stands as a testament to the importance of maintaining and regulating our water resources in the face of changing climate conditions. Climate enthusiasts and water resource experts alike can appreciate the engineering and ecological significance of this structure in the broader context of climate resilience and water security.
Year Completed |
1970 |
Dam Length |
400 |
Dam Height |
35 |
River Or Stream |
UNNAMED TRIBUTARY BAYOU CREEK |
Primary Dam Type |
Earth |
Surface Area |
7.6 |
Hydraulic Height |
31 |
Drainage Area |
0.2 |
Nid Storage |
135 |
Structural Height |
35 |
Outlet Gates |
Valve |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
35 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big Creek Near Wadesville
|
1cfs |
Wabash River At New Harmony
|
6520cfs |
Pigeon Creek Near Fort Branch
|
5cfs |
Little Wabash River At Carmi
|
117cfs |
Wabash River At Mt. Carmel
|
5860cfs |
Patoka River Near Princeton
|
876cfs |
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.
Usi - Reflection Lake Dam