Glen Hills 4 Reservoir Report
Nearby: Glen Hills 5 Glen Hills 3
Last Updated: December 6, 2025
Glen Hills 4, a flood risk reduction structure located in Glenwood City, Wisconsin, is a vital asset in protecting the surrounding area from potential flooding events.
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Summary
Constructed in 1966 by the USDA NRCS, this dam stands at a height of 32 feet and spans a length of 520 feet, with a storage capacity of 178 acre-feet. The dam's primary purpose is to control debris and reduce flood risks, making it a crucial component in managing water resources in the region.
Managed by the Wisconsin Department of Natural Resources, Glen Hills 4 is subject to regular inspections to ensure its structural integrity and effectiveness in flood risk reduction. With a high hazard potential and a satisfactory condition assessment, the dam plays a key role in mitigating flood risks for the local community. Despite its age, the dam has undergone modifications in 2002 to enhance its performance, reflecting a commitment to maintaining and improving water infrastructure for climate resilience.
As a tributary to Tiffany Creek, Glen Hills 4 serves as a critical piece of infrastructure in the Detroit District, contributing to the overall water management efforts in the region. With a moderate risk assessment rating, the dam continues to be a valuable asset in safeguarding against potential flooding events and protecting the surrounding environment. Its location, design, and operational history make Glen Hills 4 a noteworthy structure for water resource and climate enthusiasts interested in sustainable water management practices.
Years Modified |
2002 - Other |
Year Completed |
1966 |
Dam Length |
520 |
Dam Height |
32 |
River Or Stream |
Tributary to Tiffany Creek |
Surface Area |
6.8 |
Hydraulic Height |
32 |
Drainage Area |
1.2 |
Nid Storage |
178 |
Structural Height |
32 |
Hazard Potential |
High |
Nid Height |
32 |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Prairieview Campground
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Glen Hills Park - Picnic Area Campground
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Glen Hills Park Campground
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Glen Hills County Park
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Glen Hills 4