Blackstone Dam, located in Scandia, Kansas, is a privately owned structure with a primary purpose of irrigation. Built in 1953 by the USDA NRCS, this earth dam stands at a height of 16 feet with a structural height of 18 feet and a length of 485 feet. It has a normal storage capacity of 45 acre-feet and a maximum storage of 104 acre-feet, serving the surrounding area with water for agricultural needs.

Managed by the Nebraska Department of Natural Resources, Blackstone Dam is regulated, permitted, inspected, and enforced to ensure its safe operation. With a low hazard potential and fair condition assessment, the dam is deemed to be in good standing for its intended purpose. Despite being a privately owned structure, it plays a crucial role in providing water resources for the local community and supporting irrigation in the region. Enthusiasts of water resources and climate will find Blackstone Dam to be an essential infrastructure contributing to water management in the area.