Sa 12 S.r. is an earth dam located in Hamilton County, Florida, built in 1982. It carries a Low hazard potential classification.
Dam profile
NID height · 29 ft29 ft tall and 17,700 ft long, taller than 65% 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 12 S.r.
The primary purpose of Sa 12 S.r. 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 Suwanne River near White Springs.
The dam stands 29 feet tall and stretches 17,700 feet across, creates a reservoir covering 901 acres, has a maximum storage capacity of 20,000 acre-feet, and collects water from a drainage area of 901 square miles. Completed in 1982, the structure is 44 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. An emergency action plan is in place for this dam. The most recent inspection on record was 12/23/1998. That was over 27 years ago.
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Location
| State | Florida |
| County | Hamilton |
| Nearest City | White Springs |
| River/Stream | Suwanne River |
| Coordinates | 30.41300, -82.75560 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 24 ft |
| Dam Length | 17,700 ft |
| Year Completed | 1982 (44 years old) |
Storage & Hydraulics
| NID Storage | 20,000 acre-ft |
| Max Storage | 20,000 acre-ft |
| Normal Storage | 15,000 acre-ft |
| Surface Area | 901 acres |
| Drainage Area | 901 sq mi |
| Max Discharge | 220 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Tailings |
| Owner | Pcs Phosphate |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 12/23/1998 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | FL10000 |
| Federal ID | FL10000 |
| More Info | State Dam Safety Program |