S-65a is an earth dam located in Osceola County, Florida, built in 1967. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 81 ft long, taller than 80% of U.S. dams with a recorded height. 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 S-65a
The primary purpose of S-65a 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 Sfwmd (local government). It impounds the Kissimmee River (c-38) near Fort Kissimmee.
The dam stands 35 feet tall and stretches 81 feet across, creates a reservoir covering 60 acres, and has a maximum storage capacity of 2,110 acre-feet. Completed in 1967, the structure is well into its service life at over 50 years old.
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. The most recent inspection on record was 07/12/1905. That was over 121 years ago.
At 35 feet, this dam is taller than 80% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Florida |
| County | Osceola |
| Nearest City | Fort Kissimmee |
| River/Stream | Kissimmee River (c-38) |
| Coordinates | 27.70000, -81.15000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 81 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 2,110 acre-ft |
| Max Storage | 2,110 acre-ft |
| Normal Storage | 1,485 acre-ft |
| Surface Area | 60 acres |
| Max Discharge | 11,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Sfwmd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/12/1905 |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL00272 |
| Federal ID | FL00272 |
| More Info | State Dam Safety Program |