Green Valley Mine Pond Dam Reservoir Report
Last Updated: December 20, 2025
Green Valley Mine Pond Dam, located in Vigo County, Indiana, is a state-regulated earth dam completed in 1946 for the primary purpose of recreation.
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Summary
With a height of 24 feet and a length of 600 feet, this dam creates a reservoir with a storage capacity of 410 acre-feet and a surface area of 47.5 acres. The dam is situated on an unnamed tributary of East Little Sugar Creek and is under the jurisdiction of the Indiana Department of Natural Resources.
Despite its significant hazard potential and poor condition assessment, the dam has not been modified in recent years and lacks outlet gates for controlled discharge. The spillway, with a width of 45 feet, is uncontrolled, raising concerns about potential overtopping during periods of high flow. Given its moderate risk rating and the last condition assessment conducted in 2012, there is a pressing need for comprehensive risk management measures to address the dam's vulnerabilities and ensure the safety of downstream communities.
The Green Valley Mine Pond Dam serves as a reminder of the importance of periodic inspections and maintenance to safeguard water resources and local communities from the risks posed by aging infrastructure. As water resource and climate enthusiasts, it is crucial to advocate for proactive measures to mitigate potential hazards and enhance the resilience of our dam infrastructure in the face of changing environmental conditions.
Year Completed |
1946 |
Dam Length |
600 |
Dam Height |
24 |
River Or Stream |
UNNAMED TRIBUTARY EAST LITTLE SUGAR CREEK |
Primary Dam Type |
Earth |
Surface Area |
47.5 |
Hydraulic Height |
24 |
Drainage Area |
1.1 |
Nid Storage |
410 |
Structural Height |
24 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Wabash River At Terre Haute
|
1770cfs |
Big Raccoon Creek At Coxville
|
138cfs |
Wabash River At Montezuma
|
2010cfs |
Eel River At Bowling Green
|
145cfs |
Wabash River At Riverton Ind
|
1870cfs |
Big Raccoon Creek Near Fincastle Ind
|
89cfs |
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.
Green Valley Mine Pond Dam