Flint Creek Structure
Flint Creek Structure is an earth dam located in Hillsborough, Florida, built in 1975. It carries a High hazard potential classification and has a fair condition assessment.
About Flint Creek Structure
The primary purpose of Flint Creek Structure is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Swfwmd (local government). It impounds the Lake Thonotosassa near Temple Terrace.
The dam stands 7 feet tall and stretches 45 feet across, creates a reservoir covering 990 acres, has a maximum storage capacity of 6,635 acre-feet, and collects water from a drainage area of 38,784 square miles. Completed in 1975, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 12/05/2024.
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 Florida 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 | Florida |
| County | Hillsborough |
| Nearest City | Temple Terrace |
| River/Stream | Lake Thonotosassa |
| Coordinates | 28.06813, -82.26766 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 7 ft |
| Dam Height | 5 ft |
| Dam Length | 45 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 6,635 acre-ft |
| Max Storage | 6,635 acre-ft |
| Normal Storage | 1,651 acre-ft |
| Surface Area | 990 acres |
| Drainage Area | 38,784 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | SWFWMD |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 12/05/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL12037 |
| Federal ID | FL12037 |
| More Info | State Dam Safety Program |