Sa 12 S.R. dam
Sa 12 S.R.
Sa 12 S.R., also known as Sr12, is a private dam located in Hamilton County, Florida, specifically in the city of White Springs. Built in 1982, this earth dam stretches 17,700 feet along the Suwanne River, with a height of 24 feet and a hydraulic height of 19 feet. The primary purpose of Sa 12 S.R. is for tailings storage, with a maximum storage capacity of 20,000 acre-feet and a normal storage capacity of 15,000 acre-feet.
This dam, designed by ARDAMAN & ASSOCIATES, is regulated by the Florida Department of Environmental Protection (FDEP) and undergoes regular inspection and enforcement to ensure its safety and compliance. Despite being classified as low hazard potential, Sa 12 S.R. is considered to have a very high risk rating (1), highlighting the importance of robust risk management measures. The controlled spillway, with a width of 64 feet, helps to manage a maximum discharge of 220 cubic feet per second, mitigating the risk of flooding and ensuring the safety of the surrounding area.
Enthusiasts interested in water resources and climate will find Sa 12 S.R. an intriguing case study, given its location on the Suwanne River and its role in storing tailings. The dam's structural design, storage capacity, and risk assessment provide valuable insights into the complexities of managing water resources in a changing climate. As efforts to address climate change intensify, understanding the dynamics of dams like Sa 12 S.R. becomes increasingly crucial for ensuring the resilience and sustainability of water infrastructure.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Sa 12 S.R. -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Suwannee River At White Springs | 23 cfs | → |
| Suwannee R Nr Benton Fla | 1,250 cfs | → |
| Suwannee River At Suwannee Springs Fla | 117 cfs | → |
| Suwannee River At Us 441 | 16 cfs | → |
| Alapaha River Near Jennings Fla | 113 cfs | → |
| Suwannee River At Ellaville | 837 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Sa 12 S.R..
Boat launches
- Cone Bridge Boat Ramp
- Southwest Baya Drive 578, Lake City
- Southeast Evergreen Drive 358, Lake City
- Southeast Boat Ramp Glen 120, Lake City
- County Road 249, Jasper
- Ocean Pond Boat Ramp
Campgrounds
Fishing spots
Paddle runs
- State Highway 6 To The Confluence With The Suwannee River
- Ichetucknee Headspring To The First Powerline Crossing Over Ichetucknee River
- The Little River Springs At River Mile 81 To The Mouth Of The River At The Gulf Of Mexico
- The First Powerline Crossing The Ichetuckee River To The Confluence With The Santa Fe River, Down The Santa Fe River To The Suwannee River
- The Confluence Of The North Prong And Middle Prong To Trader's Hill
More reservoirs
Track Sa 12 S.R. in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Sa 12 S.R.
Where does the data for Sa 12 S.R. come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Low hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Sa 12 S.R..