Kiefer Dam-1919, also known as Ottawa Storage Dam No1, is a historic dam located in Ottawa, Kansas. Built in 1919 by an unknown designer, this buttress-style dam stands at a height of 13 feet and serves the primary purpose of water supply. Situated on the Marais Des Cygnes River, the dam has a storage capacity of 200 acre-feet and has been regulated and permitted by the Kansas Department of Agriculture.

Despite its age, Kiefer Dam-1919 has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. The dam has not undergone any major modifications in recent years and does not have an Emergency Action Plan in place. However, it is regularly inspected and meets state regulatory guidelines for operation and maintenance. The dam's location in Franklin County, Kansas, makes it an important water resource for the local community.

With its rich history and crucial role in providing water supply to the region, Kiefer Dam-1919 is a significant landmark in Ottawa, Kansas. As climate change continues to impact water resources, the maintenance and regulation of dams like Kiefer Dam-1919 becomes increasingly important to ensure sustainable water management for future generations. Enthusiasts of water resources and climate will find Kiefer Dam-1919 to be an intriguing case study in the intersection of infrastructure, environment, and conservation efforts.