Sa 4 S.c. is an earth dam located in Hamilton County, Florida, built in 1986. It carries a Significant hazard potential classification.
Dam profile
NID height · 31 ft31 ft tall and 27,368 ft long, taller than 72% 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 Sa 4 S.c.
The primary purpose of Sa 4 S.c. is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Pcs Phosphate (private). It impounds the Swift Creek near White Springs.
The dam stands 31 feet tall and stretches 27,368 feet across, creates a reservoir covering 1,418 acres, has a maximum storage capacity of 34,000 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1986, the structure is 40 years old.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 09/07/2005. That was over 21 years ago.
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Location
| State | Florida |
| County | Hamilton |
| Nearest City | White Springs |
| River/Stream | Swift Creek |
| Coordinates | 30.40986, -82.81508 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 26 ft |
| Dam Length | 27,368 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 34,000 acre-ft |
| Max Storage | 34,000 acre-ft |
| Normal Storage | 30,000 acre-ft |
| Surface Area | 1,418 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 220 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Tailings |
| Owner | Pcs Phosphate |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 09/07/2005 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | FL10006 |
| Federal ID | FL10006 |
| More Info | State Dam Safety Program |