Elias Dam, located in Crescent, Iowa, is a privately owned earth dam constructed in 1955 by the USDA NRCS for the primary purposes of fire protection, stock, and small fish pond. The dam stands at a height of 36 feet and has a storage capacity of 50 acre-feet, with a normal storage of 26 acre-feet. Situated on TR-Campbell Creek, the dam serves as a vital resource for water management in Harrison County.

Managed by the Iowa Department of Natural Resources, Elias Dam is regulated, permitted, inspected, and enforced by the state agency. Despite its low hazard potential, the dam's risk assessment is moderate, indicating a need for ongoing monitoring and maintenance. With a drainage area of 0.27 square miles, the dam provides essential water storage and flood control benefits for the surrounding area. Water resource and climate enthusiasts will find Elias Dam to be an intriguing example of sustainable water infrastructure supporting local communities in Iowa.