Nelligan Lake in Marinette, Wisconsin is a picturesque spot known for its recreational opportunities. The earth dam, constructed in 1968 by the USDA NRCS, stands at 23 feet high and spans 200 feet in length. With a storage capacity of 740 acre-feet and a surface area of 32 acres, the lake offers a tranquil escape for water enthusiasts and nature lovers alike. The dam is regulated by the Wisconsin Department of Natural Resources and undergoes regular inspections to ensure public safety.

Despite its fair condition assessment, Nelligan Lake poses a high hazard potential due to its very high risk assessment rating. The controlled spillway and 200 max discharge rate help manage water levels, but the surrounding Murphy Creek could lead to potential flooding in extreme weather conditions. While the emergency action plan may need updating, the local government takes responsibility for the lake's management and enforcement. With its beautiful surroundings and recreational opportunities, Nelligan Lake remains a popular destination for residents and visitors seeking a peaceful retreat in nature.