Sponheinmer Dam, located in Lancaster, Nebraska, is a privately owned structure primarily used for recreation. Completed in 1968, this earth dam stands at 19 feet high and spans 844 feet in length. With a storage capacity of 60 acre-feet, the dam serves as a picturesque spot for outdoor activities in the area, offering a surface area of 10 acres and a drainage area of 0.2 square miles.

Managed by the Nebraska Department of Natural Resources, Sponheinmer Dam is subject to state regulation, inspection, and enforcement to ensure its safety and effectiveness. Despite being classified as having a low hazard potential, the dam has not been rated for its condition as of the last inspection in March 2020. With a designated inspection frequency of every 5 years, the dam remains a key feature in the local landscape, providing both recreational opportunities and essential water resource management for the region.

As part of the Kansas City District, Sponheinmer Dam contributes to the overall water management strategies in Nebraska, aligning with state jurisdiction and permitting requirements. While the dam has not undergone significant modifications or emergency preparedness assessments recently, its presence on TR-Salt Creek highlights its importance in the local ecosystem and its role in mitigating flood risks and ensuring a sustainable water supply for the surrounding communities.