S-25b dam
S-25b
S-25b is a state-regulated dam located in Miami-Dade, Florida, along the Tamiami Canal (C-4). Completed in 1976, this earth dam stands at a height of 21 feet and serves the primary purpose of flood risk reduction. With a storage capacity of 1,500 acre-feet and a surface area of 71 acres, S-25b plays a crucial role in managing water levels and mitigating flood risks in the area.
Despite its low hazard potential and a lack of recent condition assessments, S-25b remains a vital infrastructure for water resource management in the region. The dam has not been rated for its current condition, and its last inspection dates back to 1905, indicating a potential need for updated assessments and evaluations. As water resource and climate enthusiasts, it is essential to monitor the maintenance and regulatory oversight of S-25b to ensure its continued effectiveness in flood risk reduction and water management efforts.
As enthusiasts interested in water resource management and climate resilience, understanding the significance of infrastructure like S-25b is crucial for safeguarding communities against potential flood hazards. With a focus on state-regulated operations and a history dating back to the 1970s, S-25b represents a key asset in maintaining water levels and protecting the surrounding area from flooding events. Continued monitoring and assessment of the dam's condition and regulatory compliance are essential to ensure its long-term functionality and effectiveness in water resource management.
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 S-25b -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Miami Canal At Nw36 St | 24 cfs | → |
| Tamiami Canal Near Coral Gables | 61 cfs | → |
| N.W. Wellfield Canal Nr Dade Broward Levee Nr Penn | 22 cfs | → |
| Levee 31 North Extension At 1 Mile Nr West Miami | 201 cfs | → |
| Levee 31 North Extension At 3 Mile Nr West Miami F | 132 cfs | → |
| Levee 31 North Extension At 4 Mile Nr West Miami F | 139 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near S-25b.
Boat launches
- Morningside Park
- Legion Park
- Barry Kutun Boat Ramp At Maurice Gibb Memorial Park
- Crandon Park Marina
- North Snapper Creek Drive 9746-9788, Miami
- Southwest Guadalajara Street Coral Gables
Campgrounds
- Cb Smith Park
- Larry And Penny Thompson Park
- Topeekeegee Yugnee County Park
- Boca Chita Key Campground
- Elliott Key Campground
- Markham Park
Track S-25b 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 S-25b
Where does the data for S-25b 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.