Twp Road 112 Reservoir Report
Last Updated: December 13, 2025
Twp Road 112, located in Lyon County, Minnesota, is a crucial infrastructure designed for flood risk reduction along the Yellow Medicine River.
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Summary
This earth dam, with a height of 29 feet and a length of 500 feet, was completed in 1996 and serves to protect the surrounding area from potential flooding events. With a storage capacity of 179 acre-feet and a maximum discharge of 175 cubic feet per second, this dam plays a vital role in managing water resources in the region.
The dam at Twp Road 112 is regulated by the Minnesota Department of Natural Resources and undergoes regular inspections to ensure its structural integrity. Despite its low hazard potential, the dam is considered to have a moderate risk level (3) and is classified as being in satisfactory condition as of the last assessment in 2015. The presence of uncontrolled spillways and outlet gates necessitates careful monitoring and management to mitigate any potential risks and ensure the safety of the surrounding community.
Overall, Twp Road 112 stands as a testament to effective water resource management and flood risk reduction efforts in Minnesota. With its strategic location and design features, this dam represents a critical piece of infrastructure that helps safeguard the local area from the impacts of extreme weather events. As climate change continues to pose challenges to water resources, the role of structures like Twp Road 112 becomes increasingly important in building resilience and ensuring the sustainable management of water systems for future generations.
Year Completed |
1996 |
Dam Length |
500 |
Dam Height |
29 |
River Or Stream |
YELLOW MEDICINE RIVER-TR |
Primary Dam Type |
Earth |
Surface Area |
1 |
Drainage Area |
3 |
Nid Storage |
179 |
Structural Height |
31 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
31 |
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.
Twp Road 112