Wiedeman Dam, located in Lancaster, Nebraska, was completed in 1967 by USDA NRCS and is primarily used for fire protection, stock watering, and as a small fish pond. This private earth dam stands at a height of 18 feet and has a hydraulic height of 16 feet, with a length of 600 feet. The dam has a normal storage capacity of 24 acre-feet and a maximum storage of 61 acre-feet, serving as a crucial water resource in the region.

Managed by the Nebraska Department of Natural Resources, Wiedeman Dam is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and functionality. With a low hazard potential and fair condition assessment, the dam poses minimal risk to the surrounding area. The last inspection in April 2018 confirmed its structural integrity, and regular inspections are carried out every five years to monitor its performance and address any maintenance needs. Despite its modest size, the dam plays a vital role in water management and conservation efforts along the TR-Little Nemaha River.

Located in the Kansas City District and under the jurisdiction of the Nebraska DNR, Wiedeman Dam serves as a key infrastructure for water resource management in the region. With its strategic placement and purposeful design, the dam contributes to the overall ecosystem health and resilience, showcasing the importance of sustainable water management practices in mitigating the impacts of climate change. As a vital component of the local water supply system, Wiedeman Dam stands as a testament to the ongoing efforts to safeguard water resources and adapt to changing climatic conditions for the benefit of the community and the environment.