Glen Hills 11 Reservoir Report
Nearby: Glen Hills 10 Glen Hills 1
Last Updated: December 13, 2025
Glen Hills 11 is a local government-owned dam in St.
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Summary
Croix, Wisconsin, designed by USDA NRCS and regulated by the Wisconsin Department of Natural Resources. Completed in 1970, this earth dam stands at a height of 28 feet and serves multiple purposes including flood risk reduction, debris control, and recreation. With a storage capacity of 344 acre-feet and a drainage area of 2 square miles, Glen Hills 11 plays a critical role in managing water resources in the region.
Despite being classified as having a low hazard potential and fair condition, Glen Hills 11 undergoes inspections every 10 years to ensure its structural integrity and safety. The dam's spillway type is uncontrolled, with a maximum discharge capacity of 160 cubic feet per second. In the event of an emergency, the dam's condition assessment and risk assessment indicate a moderate level of risk, suggesting the need for continued monitoring and potential risk management measures.
Located in a tributary to Beaver Creek, Glen Hills 11 provides valuable flood protection and water storage for the surrounding area. As climate change impacts the frequency and intensity of extreme weather events, the importance of well-maintained infrastructure like Glen Hills 11 cannot be overstated. Water resource and climate enthusiasts will find Glen Hills 11 to be a fascinating example of how engineering and conservation efforts intersect to safeguard communities and ecosystems in the face of environmental challenges.
Year Completed |
1970 |
Dam Length |
850 |
Dam Height |
28 |
River Or Stream |
Tributary to Beaver Creek |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
14 |
Drainage Area |
2 |
Nid Storage |
344 |
Structural Height |
28 |
Hazard Potential |
Low |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Eau Galle River At Spring Valley
|
16cfs |
Hay River At Wheeler
|
235cfs |
Red Cedar River At Menomonie
|
1050cfs |
Red Cedar River Near Colfax
|
593cfs |
Willow River @ Willow R State Park Nr Burkhardt
|
130cfs |
Chippewa River At Durand
|
4160cfs |
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.
Prairieview Campground
Glen Hills Park - Picnic Area Campground
Glen Hills Park Campground
Glen Hills County Park
Highland Ridge
Highland Ridge - Eau Galle Reservoir
Glen Hills 11