Maple Grove, located in Jefferson County, Colorado, is a crucial water supply dam situated on Lena Gulch. Built in 1956, this earth dam stands at 52 feet high and plays a significant role in providing water to the region. With a storage capacity of 1664 acre-feet and a controlled spillway width of 70 feet, Maple Grove ensures a reliable water source for the area.

Managed by the state regulatory agency DWR, Maple Grove is inspected regularly to ensure its structural integrity and satisfactory condition. With a high hazard potential, the dam is considered to have a very high risk level (1). Despite the risks associated with its location, Maple Grove meets safety guidelines and is equipped with emergency action plans to mitigate any potential threats.

Owned by a public utility, Maple Grove is a crucial infrastructure for water management in the region. Being under state jurisdiction and regulation, the dam not only provides water supply but also serves as a vital resource for climate enthusiasts and water resource management professionals alike.