Parnell Impoundment in Polk, Minnesota is a local government-owned structure designed by HDR ENG for the primary purpose of serving as a Fish and Wildlife Pond. Completed in 1998, this Earth-type dam stands at a height of 22 feet and has a storage capacity of 751 acre-feet. The impoundment covers a surface area of 23 acres and drains an area of 4.1 square miles, with a low hazard potential and current condition assessment rated as "Not Rated".

Located in Oslo, Minnesota along the Grand Marais Creek-TR, Parnell Impoundment is regulated by the Minnesota Department of Natural Resources (MNDNR EWR). While the dam is inspected every 8 years, its last assessment was conducted in August 2014. With no associated structures or locks, and a spillway width of 0 feet, the impoundment plays a crucial role in supporting local fish and wildlife populations. While the dam's Emergency Action Plan (EAP) status is not specified, the site's risk assessment and management measures are currently undetermined.

For water resource and climate enthusiasts, Parnell Impoundment offers a fascinating glimpse into the careful management of a Fish and Wildlife Pond in Minnesota. This structure not only provides important habitat for local species but also serves as a vital component of the region's water management infrastructure. With its low hazard potential and state-regulated status, Parnell Impoundment stands as a testament to the importance of sustainable water resource practices in maintaining ecological balance and supporting biodiversity in the area.