Split Rock Dam in Frederika, Iowa, is a local government-owned earth dam completed in 1964 for recreation purposes. Designed by Richard L King, the dam stands at a height of 25 feet with a length of 1270 feet, providing a storage capacity of 99 acre-feet and covering a surface area of 10 acres. Situated on the TR-East Wapsipinicon River, the dam is regulated by the Iowa Department of Natural Resources and has a low hazard potential with a moderate risk assessment.

Despite its uncontrolled spillway and lack of outlet gates, Split Rock Dam has been deemed structurally sound with a condition assessment of "Not Rated". Located in Chickasaw County, the dam offers a serene recreational area for water resource and climate enthusiasts to explore. With its close proximity to the city of Frederika and the Rock Island District, the dam serves as a vital water resource for the community while also providing a picturesque setting for outdoor activities. As a well-maintained and regulated structure, Split Rock Dam is an important asset for water management in the region.