Don Mannlein Dam, located in Wheeler, Nebraska, is a privately owned structure designed by the USDA NRCS for irrigation purposes. Completed in 1983, the earth dam stands at 10 feet in height and spans 510 feet in length, with a storage capacity of 92 acre-feet. Despite its low hazard potential, the dam's condition assessment in 2018 revealed a poor rating, prompting the need for further inspection and maintenance.

Managed by the Nebraska Department of Natural Resources, the dam is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and functionality. Situated on Clearwater Creek, the dam is a vital component of the local irrigation system, serving agricultural needs in the area. While it has not undergone significant modifications since its completion, ongoing risk assessments and management measures may be necessary to address its poor condition assessment.

With its strategic location and importance for irrigation in the region, Don Mannlein Dam plays a crucial role in water resource management in Nebraska. As climate change continues to impact water availability and quality, ensuring the safety and efficiency of such infrastructure becomes increasingly vital. By addressing the maintenance needs and improving the condition of the dam, stakeholders can enhance its resilience to future challenges and safeguard water resources for the community.