Welda Lake, also known as At and Santa Fe Lake Dam, is a private-owned reservoir located in Anderson County, Kansas. This Earth type dam was completed in 1916 and stands at a height of 45 feet. The dam has a storage capacity of 500 acre-feet, with a normal storage level of 380 acre-feet. The lake is situated along Bradshaw Creek and covers a surface area that is yet to be determined.

Despite being labeled as having a low hazard potential, the condition of Welda Lake is currently not rated. The last inspection of the dam was conducted in September 1993, with no subsequent assessments listed. While the dam is under state jurisdiction and regulation, there is no Emergency Action Plan (EAP) prepared, and the risk assessment and management measures for the site are not provided. The location of Welda Lake makes it a potentially interesting site for water resource and climate enthusiasts to explore further, given its historical significance and potential for further study and evaluation.