Ludington
Ludington is an earth dam located in Mason County, Michigan, built in 1973. It carries a High hazard potential classification and has a fair condition assessment.
About Ludington
The primary purpose of Ludington is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Consumers Energy Company (public utility). It impounds the Lake Michigan near Ludington.
The dam stands 110 feet tall and stretches 29,300 feet across, creates a reservoir covering 842 acres, and has a maximum storage capacity of 82,300 acre-feet. Completed in 1973, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 05/23/2022.
At 110 feet, this dam is taller than 98% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Michigan dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Michigan |
| County | Mason |
| Nearest City | Ludington |
| River/Stream | Lake Michigan |
| Coordinates | 43.89500, -86.42830 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 110 ft |
| Dam Height | 110 ft |
| Dam Length | 29,300 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 82,300 acre-ft |
| Max Storage | 82,300 acre-ft |
| Normal Storage | 54,000 acre-ft |
| Surface Area | 842 acres |
| Max Discharge | 68,000 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Consumers Energy Company |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 05/23/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MI00180 |
| Federal ID | MI00180 |
| More Info | State Dam Safety Program |