Willis Dam, located in Horton, Kansas, is a local government-owned structure built in 1969 for fire protection, stock, and small fish pond purposes. The dam stands at a height of 25.4 feet and has a length of 275 feet, with a storage capacity of 26.9 acre-feet. Situated on Grasshopper Creek-TR, the dam plays a crucial role in managing water resources in Brown County, Kansas, with a low hazard potential.

Managed by the Natural Resources Conservation Service, Willis Dam has a buttress core type and an unidentified foundation type. Despite not being regulated by the state and lacking regular inspections, the dam's condition is currently not rated, indicating a need for further assessment. With a spillway width of 30 feet and no associated locks, the dam ensures controlled water discharge during peak times while serving as a vital water resource for the local community.

While Willis Dam has not been recently inspected or assessed for risk management measures, its presence serves as a key infrastructure for water resource management in the area. As climate change continues to impact water availability and quality, the importance of maintaining and assessing structures like Willis Dam becomes increasingly crucial for sustainable water management practices in the region.