Hopewell Csa-Hl1 dam
Hopewell Csa-Hl1
Hopewell Csa-Hl1, also known as Mosaic Csa Hl-1, is a private water resource structure located in Hillsborough, Florida, along the Alafia River. This earth-type dam stands at 35 feet high and serves the primary purpose of tailings management. Completed in 1982, the dam has a storage capacity of 12,500 acre-feet and covers a surface area of 388 acres, with a controlled spillway width of 32 feet.
With a significant hazard potential and a very high risk assessment rating, Hopewell Csa-Hl1 is regulated by the Florida Department of Environmental Protection. The dam has not been rated for its condition assessment, and the last inspection took place in July 2005. Despite its age, the dam remains in operation, with state permitting, inspection, and enforcement protocols in place to ensure its safety and compliance with regulatory standards.
For water resource and climate enthusiasts, Hopewell Csa-Hl1 offers a fascinating case study in dam infrastructure management and risk assessment. As a key structure along the Alafia River, the dam plays a crucial role in tailings storage and flood control, highlighting the importance of effective regulatory oversight and emergency preparedness in safeguarding our water resources in the face of changing environmental conditions.
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 Hopewell Csa-Hl1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| North Prong Alafia River At Keysville Fl | 31 cfs | → |
| Alafia River At Lithia Fl | 20 cfs | → |
| North Prong Alafia River Near Nichols Fl | 18 cfs | → |
| South Prong Alafia River Near Lithia Fl | 11 cfs | → |
| Baker Creek At Mcintosh Road Near Antioch Fl | · | → |
| Alafia River At Riverview Fl | 2,250 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Hopewell Csa-Hl1.
Boat launches
- Alligator Alley, Plant City
- Alderman's Ford Park Trail Hillsborough County
- Lakeside Drive 910, Seffner
- Center Avenue 852, Brandon
- Sikes Boulevard Lakeland
- Thonotosassa Road 12090-12160, Thonotosassa
Campgrounds
- Edward Medard
- Alderman's Ford Park Campsite 3
- Alderman's Ford Park Campsite 4
- Alderman's Ford Park Campsite 2
- Alderman's Ford Park Campsite 1
- Group Campsite B
Fishing spots
Paddle runs
- County Road 780 Bridge To State Road 72 Bridge
- Begins Downstream Of The State Road 72 Bridge To The Southern Boundary Of Myakka River State Park
- The Southern Boundary Of The Myakka River State Park To Ends Approximately At River Mile 23 Where Riverfront Residential Development Begins
- Approximately At River Mile 23 Where Riverfront Residential Development Begins To The Vicinity Of Snook Haven Fish Camp At Approximately River Mile 18
Track Hopewell Csa-Hl1 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 Hopewell Csa-Hl1
Where does the data for Hopewell Csa-Hl1 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 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 Hopewell Csa-Hl1.