Limestone Twp 1 Reservoir Report
Nearby: Mack Pond Twp Road 112
Last Updated: December 13, 2025
Limestone Twp 1, located in MINNEOTA, Minnesota, is a local government-owned dam on the YELLOW MEDICINE RIVER with a primary purpose of Flood Risk Reduction.
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Summary
Built in 1995, this Earth-type dam stands at 26 feet high and spans 100 feet in length, offering a storage capacity of 120 acre-feet. Despite its modest size, the dam plays a crucial role in mitigating flood risks in the area, with a low hazard potential and satisfactory condition assessment.
Managed by the AREA II MN RIVER BASIN PROJECTS, INC and regulated by the Minnesota Department of Natural Resources, Limestone Twp 1 underwent its last inspection in May 2014. With uncontrolled spillways and outlet gates, the dam has a maximum discharge capacity of 147 cubic feet per second, serving a drainage area of 4 square miles. The dam's moderate risk assessment rating indicates the importance of ongoing monitoring and risk management measures to ensure its continued effectiveness in flood control and protection of downstream communities.
In the event of an emergency, the dam's Emergency Action Plan (EAP) status and risk management measures are currently unspecified, highlighting the need for updated preparedness protocols. With Collin Peterson (D) as the representative for the district, stakeholders and water resource enthusiasts can closely follow the maintenance and enhancements of Limestone Twp 1 to uphold its critical role in safeguarding the surrounding area from flooding events and climate-related challenges.
Year Completed |
1995 |
Dam Length |
100 |
Dam Height |
26 |
River Or Stream |
YELLOW MEDICINE RIVER |
Primary Dam Type |
Earth |
Surface Area |
2 |
Drainage Area |
4 |
Nid Storage |
120 |
Structural Height |
20 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
26 |
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.
Limestone Twp 1