Marshall Lake, located in Becker County, Minnesota, is a fascinating Earth dam constructed in 1972 by the USDA NRCS with a primary purpose classified as 'Other'. The dam stands at a height of 15 feet and has a length of 97 feet, creating a reservoir with a storage capacity of 2287 acre-feet. With a normal storage level of 2250 acre-feet and a surface area of 160 acres, Marshall Lake plays a crucial role in managing water resources in the region.

Managed by the local government and regulated by the Minnesota Department of Natural Resources, Marshall Lake Dam is equipped with uncontrolled spillways and outlets. It has a low hazard potential and is assessed as being in satisfactory condition as of the last inspection in July 2015. The dam is associated with the Buffalo River-TR and has a drainage area of 0.9 square miles, with a maximum discharge capacity of 450 cubic feet per second.

Despite its low hazard potential, Marshall Lake Dam poses a moderate risk, indicating the importance of ongoing risk management measures. With its unique design and contribution to water resource management in the area, Marshall Lake is a significant structure for both water resource and climate enthusiasts to study and appreciate.