Swfwmd Lake Tarpon Control Structure (s-551) is an earth dam located in Pinellas County, Florida. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 16 ft16 ft tall and 255 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Swfwmd Lake Tarpon Control Structure (s-551)
The primary purpose of Swfwmd Lake Tarpon Control Structure (s-551) 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 Tarpon near Oldsmar.
The dam stands 16 feet tall and stretches 255 feet across, creates a reservoir covering 2,529 acres, and has a maximum storage capacity of 24,447 acre-feet.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected 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 04/01/2016. That was over 10 years ago.
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Location
| State | Florida |
| County | Pinellas |
| Nearest City | Oldsmar |
| River/Stream | Lake Tarpon |
| Coordinates | 28.05311, -82.70891 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 255 ft |
Storage & Hydraulics
| NID Storage | 24,447 acre-ft |
| Max Storage | 24,447 acre-ft |
| Normal Storage | 7,756 acre-ft |
| Surface Area | 2,529 acres |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Swfwmd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/01/2016 |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL78006 |
| Federal ID | FL78006 |
| More Info | State Dam Safety Program |