Wadley #1 is a privately owned irrigation dam located in Fort Lupton, Colorado. Completed in 1895, this earth dam stands at a height of 14 feet and spans a length of 1600 feet. With a storage capacity of 74 acre-feet, the dam serves the primary purpose of irrigation along Big Dry Creek-OS.

Despite its age, Wadley #1 has been maintained in satisfactory condition with a significant hazard potential due to its uncontrolled spillway type. The dam has a moderate risk assessment rating and undergoes inspections every two years to ensure its safety and functionality. The dam is regulated by the Colorado Department of Water Resources, with enforcement, permitting, and inspection processes in place.

Overall, Wadley #1 presents an intriguing blend of historical significance and modern regulatory oversight for water resource and climate enthusiasts. Its location in Adams County, Colorado, and its role in irrigation make it a vital part of the local water infrastructure, showcasing the intersection of past engineering feats and current regulatory practices in managing water resources.