Mcintosh, located in Boulder, Colorado, is a privately owned dam that serves primarily for irrigation purposes, with additional benefits for recreation. Built in 1902, this Earth dam stands at a height of 17 feet and spans a length of 2350 feet, providing a storage capacity of 3352 acre-feet to support the needs of the surrounding area. The dam's spillway, with a width of 400 feet, is uncontrolled, allowing for the release of excess water when needed.

With a significant hazard potential and a moderate risk assessment rating, Mcintosh has undergone regular inspections to ensure its structural integrity. The condition assessment deemed the dam to be satisfactory as of August 2020, indicating that it is effectively maintained and functioning as intended. Despite its age, Mcintosh continues to play a vital role in managing water resources in the region, highlighting the importance of proper infrastructure for climate resilience and disaster preparedness.