Mcelroy is a privately owned irrigation dam located in Kremmling, Colorado, along the Pass Creek river. Completed in 1931, this earth dam stands at a height of 40 feet and has a hydraulic height of 50 feet, with a storage capacity of 355 acre-feet. The dam serves the primary purpose of irrigation, with a normal storage capacity of 240 acre-feet and a maximum discharge rate of 3478 cubic feet per second.

Despite its age, Mcelroy has been deemed to have a low hazard potential and is in satisfactory condition as of the last assessment in May 2019. The dam features an uncontrolled spillway with a width of 50 feet and has not undergone any significant modifications in recent years. It is subject to state regulation and inspection, with the Colorado Department of Water Resources overseeing permitting, inspection, and enforcement activities to ensure the safety and functionality of the structure.

Water resource and climate enthusiasts will find Mcelroy to be an intriguing example of early 20th-century irrigation infrastructure in Colorado. Its proximity to Kremmling and the Pass Creek river, along with its moderate risk assessment rating, offer a unique case study for understanding the management and operation of dams in the region. With its historical significance and ongoing regulatory oversight, Mcelroy provides valuable insights into the intersection of water resource management, infrastructure development, and environmental stewardship in the state.