Spring Lake Campground Reservoir Report
Last Updated: December 14, 2025
Nestled in the tranquil surroundings of Marathon, Wisconsin, the Spring Lake Campground offers a serene retreat for water resource and climate enthusiasts.
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Summary
This private campground is regulated by the Wisconsin Department of Natural Resources, ensuring that it meets strict standards for permitting, inspection, and enforcement. The campground's primary purpose is recreation, with the picturesque Spring Lake serving as a stunning backdrop for a variety of outdoor activities.
The Earth dam at Spring Lake, completed in 1974, stands at a height of 27 feet and spans a length of 2420 feet, creating a reservoir with a storage capacity of 174 acre-feet. The dam's spillway is uncontrolled, with a maximum discharge of 8 cubic feet per second. Despite being classified as low hazard potential, the dam's condition assessment in 2017 revealed unsatisfactory results, prompting the need for ongoing risk management measures.
Visitors to Spring Lake Campground can enjoy 18 acres of surface area, perfect for fishing, boating, and wildlife observation. While the campground's risk assessment indicates a moderate level of risk, the tranquil surroundings and recreational opportunities make it a must-visit destination for those seeking a peaceful getaway in the heart of Wisconsin's natural beauty.
Year Completed |
1974 |
Dam Length |
2420 |
Dam Height |
27 |
River Or Stream |
TR-DILL CREEK |
Primary Dam Type |
Earth |
Surface Area |
18 |
Hydraulic Height |
13 |
Drainage Area |
3.4 |
Nid Storage |
174 |
Structural Height |
27 |
Hazard Potential |
Low |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big Eau Pleine River At Stratford
|
27cfs |
Rib River At Rib Falls
|
60cfs |
Wisconsin River At Rothschild
|
2120cfs |
Black River At Neillsville
|
193cfs |
Eau Claire River At Kelly
|
280cfs |
Wisconsin River At Merrill
|
1950cfs |
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.
Spring Lake Campground