Frd No 30, also known as Big Caney Watershed Dam 30, is a vital structure located in Cowley County, Kansas, owned by the local government. Completed in 1966, this earth-type dam stands at a height of 37 feet and serves the primary purpose of flood risk reduction along Union Creek. With a maximum storage capacity of 1029.16 acre-feet and a drainage area of 2.9 square miles, Frd No 30 plays a crucial role in managing water flow and protecting the surrounding area from potential flooding events.

Managed by the Kansas Department of Agriculture, Frd No 30 has a spillway width of 60 feet and a maximum discharge capacity of 1824 cubic feet per second. The dam is classified as having a significant hazard potential, with a moderate risk assessment rating. While the condition assessment is currently not rated, regular inspections are conducted every 5 years to ensure the structural integrity and safety of the dam. Despite not having outlet gates, Frd No 30 continues to be a key asset in the flood risk reduction efforts in the region.

As water resource and climate enthusiasts, the intricate details of Frd No 30's design and operation serve as a fascinating example of engineering ingenuity and environmental stewardship. The collaboration between A&E and USDA SCS in designing this structure showcases the importance of interdisciplinary approaches in managing water resources effectively. With its critical role in flood risk reduction and its strategic location along Union Creek, Frd No 30 stands as a testament to the ongoing efforts to mitigate the impact of extreme weather events and safeguard communities against potential flooding disasters.