Lightner Dam (Big L) is a privately owned structure located in Knox, Nebraska, along the Soldier Creek. Completed in 2013, this earthen dam stands at a height of 43.6 feet and serves primarily for irrigation purposes, with a storage capacity of 691.8 acre-feet. The dam has a fair condition assessment and a low hazard potential, making it a reliable asset for water resource management in the region.

Managed by the Nebraska Department of Natural Resources, Lightner Dam plays a crucial role in regulating water flow and storage in the area. With a drainage area of 8.02 square miles and a maximum discharge capacity of 2874 cubic feet per second, the dam helps to ensure water availability for agricultural activities while minimizing flood risks. Its strategic location and design make it a vital component of the local water infrastructure.

Despite its relatively recent completion, Lightner Dam has already established itself as a key player in the water resource management of the region. With its efficient operations, low hazard potential, and fair condition, the dam represents a sustainable solution for irrigation needs in Knox, Nebraska, showcasing the importance of private investment in water infrastructure for climate resilience and resource sustainability.