LOWER MILL DAM

Reservoir Levels Weather Hydrology


RESERVOIR MICHIGAN

Lower Mill Dam


May 4, 2024

Lower Mill Dam, located in Dowagiac, Michigan, is a historic structure completed in 1840 primarily used for recreation along the South Branch Dowagiac Creek. This earth dam stands at a height of 16.7 feet with a hydraulic height of 9.85 feet and a length of 320 feet, providing a storage capacity of 225 acre-feet. The dam's spillway type is uncontrolled with a width of 68 feet, allowing for a maximum discharge of 3800 cubic feet per second.

Despite its age, Lower Mill Dam is in satisfactory condition according to its last assessment in 2016, with a significant hazard potential but moderate risk level. The dam is inspected every 4 years, with state regulation and enforcement in place to ensure its safety and compliance. The surrounding area offers a surface area of 14 acres for recreational activities and a drainage area of 69.3 square miles, making it a popular destination for water resource and climate enthusiasts interested in exploring Michigan's water infrastructure and natural landscapes.



Year_Completed 1840
Dam_Height 16.7
River_Or_Stream South Branch Dowagiac Creek
Dam_Length 320
Primary_Dam_Type Earth
Surface_Area 14
Hydraulic_Height 9.85
Drainage_Area 69.3
Nid_Storage 225
Structural_Height 16.7
Hazard_Potential Significant
Nid_Height 17

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Historical Data


Parks & Recreation

                                                       

Fayette State Park

Sand Dunes Park

Banks Township Park

Old Mission Point Park

Jackson Harbor Ridges

Natural Area Cathead Bay

Percy Johnson County Park

Leelanau State Park

French Bay Natural Area

Fishermans Island State Park

                                                                                                                       
                                               

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