H-1 Settling Area dam
H-1 Settling Area
The H-1 Settling Area in Polk County, Florida, is a privately owned tailings dam situated along the Alafia River. Constructed in 1976, this earth dam stands at a height of 34 feet and has a length of 15,000 feet, with a storage capacity of 13,160 acre-feet. The dam serves the primary purpose of storing tailings, and is regulated, permitted, inspected, and enforced by the state of Florida.
With a significant hazard potential, the H-1 Settling Area has not been rated for its condition assessment. Despite the lack of recent inspection data, the dam remains under state jurisdiction and is subject to regulatory oversight. The surrounding area has a drainage area of 0 square feet and a surface area of 387 acres, making it crucial for water resource and climate enthusiasts to monitor the dam's condition and potential risks.
As a key structure along the Alafia River, the H-1 Settling Area poses a potential risk to the local community and environment in the event of a failure. With its significant hazard potential and lack of recent assessment data, it is essential for authorities and stakeholders to prioritize the inspection, maintenance, and potential risk mitigation measures for this dam to ensure the safety and sustainability of the surrounding area's water resources and climate resilience.
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 H-1 Settling Area -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Barber Branch Near Homeland Fl | 2 cfs | → |
| Peace River Near Homeland Fl | 5 cfs | → |
| Whidden Creek Near Fort Meade Fl | 6 cfs | → |
| North Prong Alafia River Near Nichols Fl | 28 cfs | → |
| Peace River At Fort Meade Fl | 6 cfs | → |
| Sixmile Creek At Bartow Fl | 2 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near H-1 Settling Area.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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More reservoirs
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About H-1 Settling Area
Where does the data for H-1 Settling Area 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.