Johnston & Thompson Dam, located in Nuckolls, Nebraska, is a private dam designed by the USDA NRCS and regulated by the Nebraska Department of Natural Resources. Completed in 1967, this earth dam stands at 22 feet high and serves multiple purposes including fire protection, stock, and small fish pond. With a storage capacity of 114 acre-feet and a drainage area of 1.5 square miles, the dam plays a crucial role in managing water resources in the area.

Despite its low hazard potential, Johnston & Thompson Dam is regularly inspected and maintained to ensure its structural integrity. The dam has a satisfactory condition assessment as of April 2020 and is equipped with emergency action plans to mitigate potential risks. The surrounding area benefits from the reservoir created by the dam, providing water for various uses while also serving as a habitat for small fish and wildlife.

With its strategic location on the TR-Gimlet Creek, Johnston & Thompson Dam contributes to the overall water management efforts in Nebraska. Its efficient design and solid construction by the Natural Resources Conservation Service demonstrate a commitment to sustainable water resource management. As climate change continues to impact water availability, dams like Johnston & Thompson play a vital role in ensuring water security for communities and ecosystems in the region.