Alligator Creek Salinity Barrier
Alligator Creek Salinity Barrier is a concrete dam located in Charlotte County, Florida. It carries a Significant hazard potential classification and has a fair condition assessment.
About Alligator Creek Salinity Barrier
The primary purpose of Alligator Creek Salinity Barrier 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 Alligator Creek near Punta Gorda.
The dam stands 6 feet tall and stretches 120 feet across, creates a reservoir covering 12 acres, and has a maximum storage capacity of 23 acre-feet.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 04/20/2023.
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Location
| State | Florida |
| County | Charlotte |
| Nearest City | Punta Gorda |
| River/Stream | Alligator Creek |
| Coordinates | 26.88629, -82.00659 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 6 ft |
| Dam Height | 6 ft |
| Dam Length | 120 ft |
Storage & Hydraulics
| NID Storage | 23 acre-ft |
| Max Storage | 23 acre-ft |
| Normal Storage | 23 acre-ft |
| Surface Area | 12 acres |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | SWFWMD |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 04/20/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL31505 |
| Federal ID | FL31505 |
| More Info | State Dam Safety Program |