Necedah Wildlife Refuge 30 is a federal-owned structure located in Juneau, Wisconsin, and serves as a key component in managing the water resources of the Danielson Lateral. Completed in 1975, this earth dam stands at 15 feet high and has a length of 6000 feet, providing a storage capacity of 12,400 acre-feet. With a controlled spillway and a low hazard potential, the dam is deemed to be in fair condition and is inspected every 10 years to ensure its safety and functionality.

Despite its primary purpose being labeled as "Other," Necedah Wildlife Refuge 30 plays a crucial role in maintaining the ecological balance and water supply of the surrounding area. With a surface area of 1600 acres and a maximum discharge capacity of 800 cfs, this dam helps regulate water flow and supports the diverse wildlife habitats within the refuge. Additionally, the structure's risk assessment indicates a very high risk level, emphasizing the importance of effective risk management measures to protect both the dam and the surrounding environment.

As climate change continues to impact water resources, structures like Necedah Wildlife Refuge 30 become increasingly vital for ensuring water availability and flood control. With its strategic location and function, this dam exemplifies the intersection of water resource management and ecological conservation, making it a significant asset for both water resource and climate enthusiasts alike.