Wambold, also known as Eagle Spring Lake, is a gravity dam located in Waukesha, Wisconsin, with the primary purpose of recreation. Completed in 1836, this historic structure stands at a height of 12 feet and spans a length of 301 feet. With a normal storage capacity of 1127 acre-feet and a drainage area of 22 square miles, Wambold serves as a vital water resource for the surrounding community.

Managed by the Wisconsin Department of Natural Resources (WIDNR), Wambold has a state-regulated status, with regular inspections and enforcement to ensure its structural integrity. Despite being classified as having a significant hazard potential, the dam is currently in fair condition as of the last assessment in May 2020. In the event of an emergency, the dam has an Emergency Action Plan (EAP) in place to guide response efforts, although it was last revised in 2014.

Water resource and climate enthusiasts will appreciate the historical significance and environmental impact of Wambold, as well as the ongoing efforts to manage its risk and ensure public safety. Located along the Mukwonago River in EAGLEVILLE, Wisconsin, this dam not only provides recreational opportunities but also plays a critical role in water storage and management for the region. With its controlled spillway and very high risk assessment rating, Wambold remains a focal point for conservation and sustainable water resource practices in the area.