The Merrill Dorland Dam, located in West Lake, Iowa, is a privately owned structure designed by the USDA NRCS for grade stabilization purposes. Completed in 2014, this earth dam stands at a height of 31 feet and has a length of 332 feet, with a primary function of grade stabilization along the TR - West Lake river or stream. The dam also serves for recreation and water supply purposes, providing a surface area of 2 acres and a drainage area of 0.12 square miles.

With a low hazard potential and a moderate risk assessment rating, the Merrill Dorland Dam is an essential feature in the region's water resource management. Its uncontrolled spillway and outlet gates contribute to its functionality, ensuring the safe release of excess water. While the dam's condition assessment is currently not rated, its construction and design by the Natural Resources Conservation Service reflect a commitment to sustainable water management practices. Enthusiasts of water resources and climate will find the Merrill Dorland Dam a fascinating example of infrastructure that balances environmental protection with human needs.