Ketter Causeway Dam is an earth dam located in Putnam County, Florida, built in 1968. It carries a High hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 27 ft27 ft tall and 325 ft long, taller than 59% 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 Ketter Causeway Dam
The primary purpose of Ketter Causeway Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Disputed. It impounds the Tr-st. Johns River near Saratoga Harbor Estates.
The dam stands 27 feet tall and stretches 325 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 168 acre-feet. Completed in 1968, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 08/01/2014. That was 12 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.
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 | Putnam |
| Nearest City | Saratoga Harbor Estates |
| River/Stream | Tr-st. Johns River |
| Coordinates | 29.53138, -81.67963 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 325 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 168 acre-ft |
| Max Storage | 168 acre-ft |
| Normal Storage | 110 acre-ft |
| Surface Area | 6 acres |
| Max Discharge | 140 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Disputed |
| Owner Type | Not Listed |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/01/2014 |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL00158 |
| Federal ID | FL00158 |
| More Info | State Dam Safety Program |