Located in Hamilton, Nebraska, the Kostal Dam is a privately owned structure that serves multiple purposes including fire protection, stock, and acting as a small fish pond. Completed in 1970, this earth dam stands at a height of 16.4 feet and has a storage capacity of 61.7 acre-feet, with a normal storage level of 26.1 acre-feet. The dam spans 375 feet in length and covers a surface area of 5.2 acres, with a drainage area of 0.79 square miles.

Managed by the Nebraska Department of Natural Resources, the Kostal Dam is regulated, permitted, inspected, and enforced by the state, ensuring its safety and compliance with regulations. Despite being classified as having a low hazard potential, the dam's condition assessment in 2018 rated it as poor. With a five-year inspection frequency, the structure is closely monitored to mitigate any risks and ensure the safety of the surrounding area in case of emergencies.

The Kostal Dam plays a crucial role in the local ecosystem by providing water resources for various purposes while also enhancing fire protection measures. As climate change continues to impact water resources and ecosystems, the maintenance and management of dams like Kostal become increasingly important in adapting to a changing environment and ensuring the sustainability of water sources for future generations.