Wiedenfeld Dam 1, located in Sioux County, Nebraska, is a privately owned irrigation dam designed by the USDA NRCS and completed in 1952. With a primary purpose of irrigation, this earth dam stands at a height of 20 feet and has a hydraulic height of 17 feet. The dam has a storage capacity of 138 acre-feet and covers a surface area of 16 acres, serving the local community by providing water for agricultural needs.

Managed by the Nebraska Department of Natural Resources, Wiedenfeld Dam 1 is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and compliance with regulations. Despite a low hazard potential, the dam's condition assessment is rated as poor, indicating a need for maintenance and potential improvements. With a maximum discharge capacity of 1550 cubic feet per second, the dam plays a crucial role in managing water resources in the region, highlighting its importance for both agricultural and environmental sustainability.

In light of recent inspections in August 2019, efforts to address the dam's condition and improve its safety are essential to mitigate any potential risks. As a key piece of infrastructure in the area, Wiedenfeld Dam 1 serves as a vital water resource for irrigation purposes, emphasizing the significance of proper maintenance and regulatory oversight to ensure its continued functionality and safety for the surrounding community and environment.