Marsh Lake in Marinette, Wisconsin, is a privately owned reservoir managed by the USDA NRCS for recreational purposes. Completed in 1970, this earth dam stands at 14 feet tall and has a storage capacity of 120 acre-feet, providing ample space for outdoor enthusiasts to enjoy water activities. The controlled spillway and low hazard potential make Marsh Lake a safe and enjoyable destination for fishing, boating, and wildlife observation along TR Murphy Creek.

The dam's fair condition assessment as of January 2021, and regular inspections every 10 years ensure its continued safety and functionality for visitors. With a very high risk assessment rating of 1, the management measures in place help mitigate any potential risks associated with the dam. The surrounding area's high risk level underscores the importance of maintaining Marsh Lake as a well-managed and accessible water resource for the community, despite its privately owned status.

Located in a serene natural setting, Marsh Lake's proximity to Detroit District and its controlled spillway design make it a prime example of responsible water resource management in Wisconsin. From its recreational opportunities to its environmental impact, Marsh Lake serves as a valuable asset for both water resource and climate enthusiasts looking to appreciate and protect this vital ecosystem.