Meadow Valley Spillway 3 Reservoir Report
Last Updated: December 13, 2025
Meadow Valley Spillway 3, located in Juneau, Wisconsin, is a state-owned earth dam completed in 1938 with a primary purpose of recreation.
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Summary
Standing at a height of 9 feet and a length of 23,000 feet, the dam has a storage capacity of 1,000 acre-feet and a normal storage of 300 acre-feet, serving the Beaver Creek Drainage Ditch. The spillway type is controlled with a hydraulic height of 6 feet, allowing for a maximum discharge of 430 cubic feet per second.
Despite being rated as having a low hazard potential, Meadow Valley Spillway 3 is considered to have a very high risk, with a risk assessment ranking of 1. The last inspection took place in September 2011 with a scheduled inspection frequency of 10 years. The emergency action plan (EAP) status is not specified, and the condition assessment is listed as "Not Rated." While the risk management measures and inundation maps are not detailed, the dam is regulated, inspected, and enforced by the Wisconsin Department of Natural Resources (WIDNR) to ensure public safety and water resource management in the area.
Overall, Meadow Valley Spillway 3 serves as a vital component in the recreational infrastructure of Wisconsin, providing water storage and flood control measures for the Beaver Creek Drainage Ditch. With its historical significance dating back to the late 1930s, the dam continues to play a crucial role in water resource management and climate resilience efforts in the region. As climate change impacts become more pronounced, the maintenance and monitoring of Meadow Valley Spillway 3 will be essential to safeguarding the surrounding communities and ecosystems from potential risks and hazards.
Years Modified |
1975 - Other |
Year Completed |
1938 |
Dam Length |
23000 |
Dam Height |
9 |
River Or Stream |
BEAVER CREEK DRAINAGE DITCH |
Primary Dam Type |
Earth |
Surface Area |
250 |
Hydraulic Height |
6 |
Drainage Area |
14 |
Nid Storage |
1000 |
Structural Height |
9 |
Hazard Potential |
Low |
Nid Height |
9 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Yellow River At Babcock
|
44cfs |
Yellow River At Necedah
|
52cfs |
Tenmile Creek Near Nekoosa
|
27cfs |
Lemonweir River At New Lisbon
|
261cfs |
Wisconsin River At Wisconsin Rapids
|
1960cfs |
Black River Ds St Hwy 54 @ Black River Falls
|
514cfs |
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.
Meadow Valley Spillway 3