Fairfield Water Works Dam No 1, located in Fairfield, Iowa, is a significant water supply structure built in 1888 on TR-Cedar Creek. The dam stands at a height of 40 feet and spans 500 feet, providing a storage capacity of 350 acre-feet. With a drainage area of 0.12 square miles, the dam plays a crucial role in maintaining a normal storage capacity of 292 acre-feet, ensuring a stable water supply for the local community.

Managed by the Local Government and regulated by the Iowa Department of Natural Resources, Fairfield Water Works Dam No 1 has been assessed as being in satisfactory condition as of May 2018. Although it has a significant hazard potential, the dam's risk assessment is moderate. With a regular inspection frequency of 5 years and emergency preparedness protocols in place, the dam serves as a vital infrastructure for water resource management in the region.

For water resource and climate enthusiasts, Fairfield Water Works Dam No 1 offers insights into the historical development of water supply infrastructure in Iowa. Its earth-type construction and uncontrolled spillway design present unique engineering challenges and opportunities for sustainable water management practices. As a key component of the local water supply system, the dam exemplifies the intersection of human ingenuity, environmental stewardship, and community resilience in the face of changing climate conditions.