Ogden Lake Dam
Ogden Lake Dam is a rockfill dam located in Marquette County, Michigan, built in 1990. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Ogden Lake Dam
Ogden Lake Dam is a dam in Marquette, Michigan. The dam is owned by Tilden Mining Company Lc (private). It impounds the Ely Creek near National Mine.
The dam stands 9 feet tall and stretches 100 feet across, creates a reservoir covering 57 acres, has a maximum storage capacity of 388 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1990, the structure is 36 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/01/2018. That was 7 years ago, which is on the longer end for a high-hazard structure.
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 | Marquette |
| Nearest City | National Mine |
| River/Stream | Ely Creek |
| Coordinates | 46.47000, -87.65833 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 100 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 388 acre-ft |
| Max Storage | 388 acre-ft |
| Normal Storage | 160 acre-ft |
| Surface Area | 57 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 159 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Tilden Mining Company LC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/01/2018 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MI00841 |
| Federal ID | MI00841 |
| More Info | State Dam Safety Program |