King Dam, also known as Valley Development Dam, is a private-owned structure located in Polk County, Iowa. Built in 1967 by USDA NRCS, this earth-type dam serves multiple purposes including fire protection, stock, small fish pond, and recreation. With a height of 26 feet and a length of 502 feet, King Dam has a storage capacity of 101 acre-feet and covers a surface area of 7 acres.

Situated on TR-Muchikinock Creek, King Dam is regulated by the Iowa Department of Natural Resources and has a low hazard potential rating. Although the dam has not been rated for condition assessment, it is inspected, permitted, and enforced by state agencies. The risk assessment for King Dam is considered moderate, with no emergency action plan in place as of the latest data update in May 2021.

Water resource and climate enthusiasts will find King Dam an interesting feature due to its role in providing water for fire protection, livestock, and recreational activities in the area. As a privately-owned structure with state oversight, the dam presents a unique blend of functionality and regulatory compliance, making it a noteworthy site for those interested in sustainable water management practices in the Midwest region.