Alligator Lake Weir
Alligator Lake Weir is an earth dam located in Pinellas County, Florida. It carries a Significant hazard potential classification and has a fair condition assessment.
About Alligator Lake Weir
The primary purpose of Alligator Lake Weir 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 Pinellas County (local government). It impounds the Alligator Creek near Safety Harbor.
The dam stands 9 feet tall and stretches 103 feet across, creates a reservoir covering 79 acres, has a maximum storage capacity of 311 acre-feet, and collects water from a drainage area of 8 square miles.
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 03/31/2016. That was over 10 years ago.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Florida |
| County | Pinellas |
| Nearest City | Safety Harbor |
| River/Stream | Alligator Creek |
| Coordinates | 27.97981, -82.69509 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 103 ft |
Storage & Hydraulics
| NID Storage | 311 acre-ft |
| Max Storage | 311 acre-ft |
| Normal Storage | 200 acre-ft |
| Surface Area | 79 acres |
| Drainage Area | 8 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | PINELLAS COUNTY |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 03/31/2016 |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL78002 |
| Federal ID | FL78002 |
| More Info | State Dam Safety Program |