Zenishek Dam, located in Johnson County, Iowa, was completed in 1979 by the USDA NRCS and serves multiple purposes including fire protection, stock watering, and small fish pond management. The earth dam stands at a height of 25 feet and spans 550 feet in length, with a storage capacity of 114 acre-feet. Situated on the TR-Cedar River, the dam is regulated by the Iowa DNR and is inspected, permitted, and enforced by state authorities.

With a low hazard potential and a moderate risk assessment, Zenishek Dam is a key infrastructure for water resource management in the area. The dam's spillway type is uncontrolled, and it has not been modified since its completion. While the condition assessment is currently not rated, the dam is considered to meet guidelines for emergency action plans. As a private-owned structure, the dam plays a crucial role in maintaining water resources and mitigating risks associated with flooding and water scarcity in the region.

Enthusiasts of water resources and climate will find Zenishek Dam to be a fascinating case study in sustainable water management. This earth dam, designed by the USDA NRCS, provides essential services for fire protection and agricultural activities while also serving as a habitat for small fish. With its low hazard potential and moderate risk assessment, the dam represents a balance between water resource utilization and environmental conservation. As a regulated structure in Iowa, Zenishek Dam showcases the importance of state oversight in ensuring the safety and functionality of critical water infrastructure.