Cheboygan
Cheboygan is a timber crib dam located in Cheboygan County, Michigan, built in 1922. It carries a High hazard potential classification and has a fair condition assessment.
About Cheboygan
The primary purpose of Cheboygan 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 Michigan Department Of Natural Resources (private). It impounds the Cheboygan River near Cheboygan.
The dam stands 21 feet tall and stretches 580 feet across, creates a reservoir covering 17,801 acres, has a maximum storage capacity of 83,000 acre-feet, and collects water from a drainage area of 1,515 square miles. Completed in 1922, the structure is over a century 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 09/07/2022.
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 | Cheboygan |
| Nearest City | Cheboygan |
| River/Stream | Cheboygan River |
| Coordinates | 45.63610, -84.47970 |
Physical Characteristics
| Dam Type | Timber Crib |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 580 ft |
| Year Completed | 1922 (104 years old) |
Storage & Hydraulics
| NID Storage | 83,000 acre-ft |
| Max Storage | 83,000 acre-ft |
| Normal Storage | 82,947 acre-ft |
| Surface Area | 17,801 acres |
| Drainage Area | 1,515 sq mi |
| Max Discharge | 7,640 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Michigan Department of Natural Resources |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 09/07/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MI00520 |
| Federal ID | MI00520 |
| More Info | State Dam Safety Program |