McCall is a significant dam located in Boulder, Colorado, primarily owned by the local government for water supply purposes. Built in 1909, this earth-type dam stands at a height of 14 feet and spans 1900 feet in length, with a storage capacity of 722 acre-feet. The dam's primary purpose is water supply, but it also serves for recreational activities.

Situated on the St. Vrain Creek, McCall Dam is regulated by the Colorado Department of Water Resources (DWR) and undergoes regular inspections to ensure its structural integrity. With a high hazard potential but a satisfactory condition assessment, the dam poses a moderate risk (rated 3 out of 5). In case of emergencies, the dam's emergency action plan is set to be reviewed periodically to meet safety guidelines, although specific dates for updates are not provided in the data.

Despite its age, McCall Dam continues to play a crucial role in water resource management and recreational opportunities in the region. Its presence and operation are vital for ensuring a stable water supply and mitigating potential risks associated with its high hazard potential.