Hoy Lake Dam
Hoy Lake Dam is an earth dam located in Hinds County, Mississippi, built in 1964. It carries a High hazard potential classification and has a unsatisfactory condition assessment.
About Hoy Lake Dam
The primary purpose of Hoy Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Hoy Lake Corporation (private). It impounds the Unt Of Purple Creek near Jackson.
The dam stands 16 feet tall and stretches 590 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 80 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1964, 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 unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action. An emergency action plan is in place for this dam. The most recent inspection on record was 02/13/2023.
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 Mississippi 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 | Mississippi |
| County | Hinds |
| Nearest City | Jackson |
| River/Stream | Unt Of Purple Creek |
| Coordinates | 32.39265, -90.10717 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 590 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 80 acre-ft |
| Max Storage | 80 acre-ft |
| Normal Storage | 65 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | HOY LAKE CORPORATION |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 02/13/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MS02740 |
| Federal ID | MS02740 |
| More Info | State Dam Safety Program |