Welder Lake No 9 Dam dam
Welder Lake No 9 Dam
Welder Lake No 9 Dam, located in La Salle, Texas, was completed in 1964 and serves as a crucial water supply structure in the region. This private-owned earth dam stands at a height of 15 feet and has a length of 725 feet, with a capacity to store up to 132 acre-feet of water. The primary purpose of the dam is to provide water for various uses, contributing to the sustainability of the local water resources.
Despite being a non-federally regulated structure, Welder Lake No 9 Dam poses a high risk (2) due to its condition assessment being not rated and the lack of emergency preparedness measures in place. The dam lacks a spillway and is associated with Piedra Creek, further highlighting the importance of regular inspections and maintenance. Climate and water resource enthusiasts are drawn to the significance of this dam in the context of managing water supply in a region prone to drought and other climate-related challenges.
With the potential for high hazard and the critical role it plays in water supply, Welder Lake No 9 Dam stands as a focal point for discussions on water resource management and climate resilience. As efforts are made to address the risk associated with this structure, it serves as a reminder of the complexities and importance of maintaining infrastructure in the face of changing climate patterns and increasing water demands.
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 Welder Lake No 9 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| San Casimiro Ck Nr Freer | 33 cfs | → |
| Nueces Rv Nr Tilden | 111 cfs | → |
| Nueces Rv At Cotulla | 3 cfs | → |
| Frio Rv At Tilden | 0 cfs | → |
| San Miguel Ck Nr Tilden | 6 cfs | → |
| Frio Rv Nr Derby | · | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Welder Lake No 9 Dam.
Track Welder Lake No 9 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 Welder Lake No 9 Dam
Where does the data for Welder Lake No 9 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 Welder Lake No 9 Dam.