Cassin Dam dam
Cassin Dam
Cassin Dam, located in Zavala, Texas, was completed in 1942 for the primary purposes of fire protection, stock, and a small fish pond. This privately owned earth dam stands at a height of 10 feet and has a length of 1045 feet, with a capacity of 80 acre-feet of water. Despite its small size, the dam plays a significant role in providing water resources for the surrounding area, particularly for recreational activities.
The dam, situated on TR-TORTUGAS CREEK, is under state permitting and inspection, ensuring its safety and functionality. However, with a high hazard potential and a risk assessment rating of 2, it is essential to continue monitoring and implementing risk management measures to prevent any potential disasters. Although the dam's condition assessment is not rated, its role in water resource management makes it a crucial structure for climate enthusiasts and water resource professionals to keep an eye on.
With no spillway and a limited drainage area, Cassin Dam serves as a vital resource for the local community while also posing potential risks if not properly managed. Its association with fire protection, small-scale stock, and recreational activities highlights the diverse uses of water resources in the area. As advocates for sustainable water management and climate resilience, it is important to stay updated on the maintenance and monitoring of Cassin Dam to ensure its continued safety and functionality for the future.
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 Cassin Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Leona Rv Nr Uvalde | · | → |
| Nueces Rv Bl Uvalde | 0 cfs | → |
| Frio Rv Bl Dry Frio Rv Nr Uvalde | · | → |
| Nueces Rv Nr Asherton | 23 cfs | → |
| Sabinal Rv At Sabinal | · | → |
| Frio Rv Nr Derby | · | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Cassin Dam.
Track Cassin Dam 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 Cassin Dam
Where does the data for Cassin Dam 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 Not Available 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 Cassin Dam.