Callan Dam, located in Gage County, Nebraska, is a privately owned structure designed by the USDA NRCS with a primary purpose of recreation. Completed in 1964, this earth-type dam stands at a height of 26 feet and has a structural height of 29 feet, with a length of 875 feet. It has a storage capacity of 581 acre-feet and covers a surface area of 32 acres, serving as a popular spot for outdoor activities in the area.

Managed by the Nebraska Department of Natural Resources, Callan Dam is regulated, permitted, inspected, and enforced by state authorities to ensure its safe operation. With a low hazard potential and fair condition assessment, the dam poses minimal risk to the surrounding area. The last inspection in June 2018 indicated that the structure meets safety guidelines, although emergency preparedness measures like an Emergency Action Plan (EAP) and inundation maps are yet to be developed.

Visitors to Callan Dam can enjoy recreational activities like fishing, boating, and picnicking in the picturesque surroundings of Big Indian Creek. The dam plays a crucial role in maintaining the water levels and providing a habitat for aquatic life in the region. As a part of the Omaha District, the dam contributes to the overall water resource management in the area, showcasing the importance of sustainable practices and careful monitoring of infrastructure for water resource and climate enthusiasts.