Sa 9 S.R. dam
Sa 9 S.R.
Sa 9 S.R., located in Hamilton, Florida, is a privately owned earth dam constructed in 1978 on the Suwannee River for tailings purposes. With a height of 26 feet and a hydraulic height of 21 feet, the dam spans 6500 feet in length and has a storage capacity of 3200 acre-feet. The dam's spillway, measuring 64 feet in width, is of the controlled type, with a maximum discharge capacity of 220 cubic feet per second.
Despite being classified as having a low hazard potential, Sa 9 S.R. is recognized for its high risk assessment rating, with a very high risk level assigned to the structure. The dam's condition assessment is noted as "Not Rated," with the last inspection conducted in December 1998. Although the dam meets state regulatory requirements for permitting, inspection, and enforcement, there are no specific risk management measures or emergency action plans reported for the site.
Given its critical location on the Suwannee River and the potential risks associated with its current condition, Sa 9 S.R. serves as a focal point for water resource and climate enthusiasts concerned with the safety and sustainability of dam structures in Florida. Further monitoring and evaluation of the dam's condition, as well as the development of comprehensive risk management strategies, may be essential to ensure the long-term resilience of this important water management 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 9 S.R. -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Suwannee R Nr Benton Fla | 1,250 cfs | → |
| Suwannee River At White Springs | 21 cfs | → |
| Suwannee River At Suwannee Springs Fla | 117 cfs | → |
| Suwannee River At Us 441 | 19 cfs | → |
| Alapaha River Near Jennings Fla | 117 cfs | → |
| Suwannee River At Ellaville | 816 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Sa 9 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
- The Suwannee River Sill At River Mile 238 To The Little River Springs At River Mile 81
Track Sa 9 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 9 S.R.
Where does the data for Sa 9 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.