Mott Dam
Mott Dam is an earth dam located in Genesee County, Michigan, built in 1971. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Mott Dam
The primary purpose of Mott Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Genesee County Parks & Rec. Comm (local government). It impounds the Flint River near Flint.
The dam stands 22 feet tall and stretches 1,772 feet across, creates a reservoir covering 684 acres, has a maximum storage capacity of 6,887 acre-feet, and collects water from a drainage area of 603 square miles. Completed in 1971, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. 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 10/01/2019.
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Location
| State | Michigan |
| County | Genesee |
| Nearest City | Flint |
| River/Stream | Flint River |
| Coordinates | 43.08026, -83.65242 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 1,772 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 6,887 acre-ft |
| Max Storage | 6,887 acre-ft |
| Normal Storage | 5,200 acre-ft |
| Surface Area | 684 acres |
| Drainage Area | 603 sq mi |
| Max Discharge | 80,800 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Genesee County Parks & Rec. Comm |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/01/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MI00469 |
| Federal ID | MI00469 |
| More Info | State Dam Safety Program |