Holloway Dam
Holloway Dam is a gravity dam located in Genesee County, Michigan, built in 1954. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Holloway Dam
The primary purpose of Holloway Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Flint (local government). It impounds the Flint River near Genesee.
The dam stands 38 feet tall and stretches 3,350 feet across, creates a reservoir covering 1,400 acres, has a maximum storage capacity of 29,900 acre-feet, and collects water from a drainage area of 526 square miles. Completed in 1954, 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 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 08/14/2018. That was 7 years ago, which is on the longer end for a high-hazard structure.
At 38 feet, this dam is taller than 85% of dams nationwide.
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 | Genesee |
| Nearest City | Genesee |
| River/Stream | Flint River |
| Coordinates | 43.11992, -83.49330 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 3,350 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 29,900 acre-ft |
| Max Storage | 29,900 acre-ft |
| Normal Storage | 15,350 acre-ft |
| Surface Area | 1,400 acres |
| Drainage Area | 526 sq mi |
| Max Discharge | 36,200 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Flint |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/14/2018 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MI00064 |
| Federal ID | MI00064 |
| More Info | State Dam Safety Program |