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Prior Lake Reservoir Levels

Minnesota Reservoir Water Levels and Forecast

Last Updated: November 9, 2025


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Prior Lake, also known as Lower Prior Lake, is a state-regulated water resource located in Scott County, Minnesota. Managed by the Minnesota Department of Natural Resources, this concrete gravity dam serves primarily for recreation purposes, with a storage capacity of 1,760 acre-feet and a surface area of 1,056 acres. The dam, with a height of 12 feet and a length of 8 feet, is situated on the Minnesota River-TR stream.

Despite being classified with a low hazard potential, the dam at Prior Lake has not been rated for its condition assessment. The last inspection was conducted in June 2010, with a scheduled inspection frequency of every 8 years. The risk assessment for this structure is moderate, with a DSAC (Dam Safety Action Classification) score of 3. Emergency action plans, inundation maps, and risk management measures are currently not available for Prior Lake.

Enthusiasts of water resources and climate can appreciate the unique features of Prior Lake and the efforts put forth by state agencies to regulate and maintain the dam's safety. With its picturesque setting and recreational opportunities, Prior Lake serves as a vital resource for the community while also highlighting the importance of proper dam management and risk assessment in ensuring public safety and environmental preservation.

Dam_Length 8
Dam_Height 5
River_Or_Stream MINNESOTA RIVER-TR
Primary_Dam_Type Concrete
Surface_Area 1056
Drainage_Area 35
Nid_Storage 1760
Structural_Height 12
Outlet_Gates None
Hazard_Potential Low
Foundations Unlisted/Unknown
Nid_Height 12
       

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