Warren Twp Road Reservoir Report
Nearby: Boller Pool Henry Neuman Detention
Last Updated: December 13, 2025
Warren Twp Road, also known as Radatz Group Detention, is a critical infrastructure project located in Rushford, Minnesota, along Rush Creek-TR.
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Summary
This earth-type dam, completed in 1975 by the USDA NRCS, stands at 21 feet in height and spans 470 feet in length. Its primary purpose is flood risk reduction, with a storage capacity of 60 acre-feet and a drainage area of 0.38 square miles. Despite its significant hazard potential, the dam has been assessed as satisfactory and meets regulatory standards set by the MNDNR EWR.
The Warren Twp Road dam plays a crucial role in mitigating flood risks in the area, with a moderate risk assessment rating. Its uncontrolled spillway and outlet gates are designed to handle a maximum discharge of 224 cubic feet per second, safeguarding the surrounding community from potential inundation. Although last inspected in May 2019, the dam's condition remains satisfactory, reflecting the ongoing efforts of the Natural Resources Conservation Service to ensure its structural integrity and operational effectiveness.
For water resource and climate enthusiasts, the Warren Twp Road dam represents a vital piece of infrastructure in Winona County, Minnesota, serving as a key component of the local flood control system. With its buttress core type and earth construction, this dam stands as a testament to the collaborative efforts between local government agencies and federal entities like the USDA NRCS. As climate change continues to impact precipitation patterns and water levels, the importance of maintaining and enhancing such flood risk reduction structures only grows in significance.
Year Completed |
1975 |
Dam Length |
470 |
Dam Height |
21 |
River Or Stream |
RUSH CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
11 |
Drainage Area |
0.38 |
Nid Storage |
60 |
Structural Height |
21 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
21 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Mississippi River At Winona
|
17200cfs |
Root River Near Pilot Mound
|
303cfs |
Trempealeau River At Dodge
|
953cfs |
Root River Near Houston
|
515cfs |
South Fork Root River Near Houston
|
353cfs |
Zumbro River At Kellogg
|
1550cfs |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
North End City Park
|
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Prairie Island Campground
|
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Prairie Island City Campground
|
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Trailside Campground
|
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Peterson RV Campground
|
Warren Twp Road