Lyle Nejezchleb Dam is a privately owned structure located in Deweese, Nebraska, designed by the USDA NRCS and regulated by the Nebraska Department of Natural Resources. Completed in 1989, this earth dam stands at 22 feet in height and serves primarily for irrigation purposes along Liberty Creek. With a storage capacity of 54 acre-feet and a low hazard potential, the dam covers a surface area of 4 acres and drains a 0.4 square mile watershed.

Managed by the Natural Resources Conservation Service, Lyle Nejezchleb Dam has a fair condition assessment as of March 2020 and is inspected every five years. Its structural height reaches 30 feet, with a hydraulic height of 21 feet, and a length of 400 feet. Though lacking specific spillway information, the dam has a maximum discharge of 109 cubic feet per second and a normal storage capacity of 17 acre-feet. Located within the Omaha District, this dam plays a crucial role in supporting local irrigation needs in Nuckolls County, Nebraska.

For water resource and climate enthusiasts, Lyle Nejezchleb Dam offers a fascinating example of sustainable water management in Nebraska. With its earth construction and stone core, this structure represents a significant investment in agricultural irrigation infrastructure. Despite its low hazard potential, the dam's strategic location and design contribute to the efficient utilization of water resources in the region. As a key component of the local water management system, Lyle Nejezchleb Dam showcases the importance of responsible dam operation and maintenance in ensuring water security for agricultural activities in Nuckolls County.