Thomas Dam, also known as Ksnoname 461, is a private water resource structure located in Crawford County, Kansas. Designed by the USDA NRCS, this Earth-type dam serves multiple purposes including fire protection, stock, and small fish pond management. It stands at a height of 15 feet with a hydraulic height of 14 feet and a length of 1400 feet, providing a storage capacity of 61.9 acre-feet.

Situated on Hickory Creek-TR, Thomas Dam has a low hazard potential and is currently not rated for its condition assessment. Despite being last inspected in February 1991, the dam has not undergone any modifications since its completion. With a spillway width of 75 feet and a surface area of 8.3 acres, the dam serves as an important water resource for the region. While it is not regulated by the state and does not require permits or inspections, Thomas Dam plays a crucial role in water management and conservation efforts in the area.

Owned privately and funded by the Natural Resources Conservation Service, Thomas Dam plays a vital role in maintaining water supply for fire protection and agricultural activities. While it may not be a prominent landmark, its significance in providing water resources for the community cannot be overlooked. Climate and water resource enthusiasts will find Thomas Dam to be an intriguing structure that contributes to the sustainable management of water in the region.