Gassaway Dam, also known as Ksnoname 633, is a private dam located in Ellis County, Kansas, specifically in the city of Turkville. Constructed in 1963 by the USDA NRCS, this buttress-type dam stands at a structural height of 39 feet and spans 519 feet in length, with a maximum storage capacity of 54 acre-feet. The dam is situated on the Saline River-TR and is owned and regulated by the Kansas Department of Agriculture.

With a low hazard potential and a condition assessment of "Not Rated," Gassaway Dam plays a crucial role in water resource management and flood control in the region. The dam's primary purpose and specific dam types have not been specified, but it is designed to withstand a maximum discharge of 430 cubic feet per second and features a spillway width of 69 feet. Despite not being under the jurisdiction of the US Army Corps of Engineers, Gassaway Dam is subject to state regulation, inspection, and enforcement to ensure its safe operation and maintenance.

Water resource and climate enthusiasts will find Gassaway Dam to be a fascinating structure that contributes to the sustainable management of water resources in Kansas. Its strategic location, design characteristics, and state-regulated status highlight the importance of dams in mitigating flood risks and providing reliable water storage for agricultural and environmental purposes. As a privately owned dam with a significant impact on the local hydrology, Gassaway Dam serves as a testament to the collaborative efforts between government agencies, designers, and dam operators in safeguarding critical water infrastructure for future generations.