The Fish Hook River, also known as the Mill Pond Dam, is a gravity dam located in Hubbard, Minnesota. Built in 1941, this local government-owned structure stands at a height of 15 feet and has a structural height of 20 feet. With a normal storage capacity of 6,500 acre-feet and a drainage area of 245 square miles, this dam plays a crucial role in managing water resources in the region.

The dam, which is regulated by the Minnesota Department of Natural Resources, features a Tainter radial gate system for water control. Despite being assessed as in fair condition during its last inspection in August 2016, the Fish Hook River Dam has a significant hazard potential. With a maximum discharge capacity of 1,500 cubic feet per second, the dam serves a variety of purposes beyond flood control, making it an essential piece of infrastructure in the area.

Water resource and climate enthusiasts will be fascinated by the history and functionality of the Fish Hook River Dam. As a key structure in the St. Paul District, it stands as a testament to the importance of effective water management and regulation in maintaining the ecological balance of the region.