Northfield, a private hydroelectric dam located on the Cannon River in Rice County, Minnesota, has been serving as a critical water resource for the region since its completion in 1918. With a dam height of 17 feet and a length of 165 feet, Northfield has a storage capacity of 40 acre-feet and a drainage area of 934 acres. The dam, primarily constructed with concrete and gravity core types, plays a significant role in managing the water flow and generating hydroelectric power in the area.

Despite being privately owned, Northfield is regulated, permitted, inspected, and enforced by the Minnesota Department of Natural Resources - Division of Ecological and Water Resources. The dam has been assessed to be in fair condition, with a significant hazard potential and a moderate risk assessment rating. The last inspection in 2018 highlighted the need for regular maintenance and emergency preparedness to ensure the safety and functionality of the structure. With a spillway type of 'Uncontrolled', Northfield poses a unique challenge in terms of water release management during high flow events.

Northfield's strategic location along the Cannon River, its historical significance, and its role in providing hydroelectric power make it a focal point for water resource and climate enthusiasts. As climate change continues to impact water resources and infrastructure, maintaining and enhancing the resilience of dams like Northfield is crucial to ensure sustainable water management and energy production for the community.