North Hero Twp 10 Reservoir Report
Last Updated: December 13, 2025
North Hero Twp 10, located in Redwood County, Minnesota, is a rockfill dam with a primary purpose of flood risk reduction along Plum Creek-TR.
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Summary
Managed by the local government, this dam is regulated by the Minnesota Department of Natural Resources and has state permitting, inspection, and enforcement in place. With a height of 31.6 feet and a storage capacity of 66.2 acre-feet, North Hero Twp 10 plays a crucial role in mitigating flood risks in the area.
Despite being categorized as having low hazard potential, the dam is in fair condition as of the last assessment in May 2018. With a regular inspection frequency of 8 years, North Hero Twp 10 is monitored for any potential risks or maintenance needs. The dam has not undergone any modifications in recent years and does not have an Emergency Action Plan in place, raising questions about its preparedness for potential emergencies.
Situated in a rural area near the city of Lamberton, North Hero Twp 10 serves as a vital infrastructure for flood control and water resource management in the region. As climate change continues to impact weather patterns and increase the frequency of extreme events, the importance of maintaining and monitoring dams like North Hero Twp 10 becomes increasingly evident for the safety and well-being of local communities and ecosystems.
Dam Length |
410 |
Dam Height |
31.6 |
River Or Stream |
PLUM CREEK-TR |
Primary Dam Type |
Rockfill |
Drainage Area |
0.59 |
Nid Storage |
66.2 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Redwood River Near Redwood Falls
|
53cfs |
Redwood River Near Marshall
|
0cfs |
Minnesota River At Morton
|
1750cfs |
Yellow Medicine River Near Granite Falls
|
133cfs |
Minnesota River At New Ulm
|
1130cfs |
Cottonwood River Near New Ulm
|
215cfs |
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.
North Hero Twp 10