Structure 353 dam
Structure 353
Structure 353, also known as Robinson, is a concrete dam located in Citrus County, Florida, specifically in the city of Stokes Ferry. This dam, completed in 1962, serves the primary purpose of flood risk reduction along Canal 331. With a height of 12.5 feet and a length of 61 feet, Structure 353 has a significant hazard potential and is under state regulation, inspection, and enforcement by the Southwest Florida Water Management District (SWFWMD).
The dam has a storage capacity of 60,000 acre-feet and a normal storage of 57,750 acre-feet, covering a surface area of 5,500 acres. It has a spillway width of 60 feet and an uncontrolled outlet gate system. While the dam's condition assessment is currently not rated, it is crucial for preventing flooding in the surrounding areas and managing water resources effectively. The last inspection date of Structure 353 was in February 1999, highlighting the importance of regular monitoring and maintenance to ensure its continued functionality and safety for the community.
As a vital infrastructure for flood risk reduction in Florida, Structure 353 plays a key role in water resource management and climate resilience efforts in the region. With its significant hazard potential and state-regulated status, the dam serves as a critical piece of infrastructure in protecting the surrounding areas from potential flooding events. Continued monitoring, inspection, and maintenance of Structure 353 are essential to safeguarding the community and ensuring the efficient management of water resources in Citrus County.
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 Structure 353 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Withlacoochee River Nr Holder | 166 cfs | → |
| Withlacoochee River Nr Inverness | 80 cfs | → |
| Withlacoochee River Nr Rutland | 114 cfs | → |
| Rainbow River Near Dunnellon | 428 cfs | → |
| Rainbow Springs Near Dunnellon | 508 cfs | → |
| Withlacoochee R At Wysong Dam At Carlson | 51 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Structure 353.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Structure 353
Where does the data for Structure 353 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 Significant 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 below 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.
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.