White Lake Dam dam
White Lake Dam
White Lake Dam in Bexar, Texas, is a privately owned structure that serves the primary purpose of recreation. Completed in 1970, this earth dam stands at a height of 40.6 feet and has a hydraulic height of 42.3 feet. It spans 725 feet in length and has a storage capacity of 420 acre-feet, with normal storage at 124 acre-feet. The dam is located along the TR-San Geronimo Creek and is under the jurisdiction of the Texas Commission on Environmental Quality (TCEQ).
In 2009, White Lake Dam underwent modifications to enhance its hydraulic and structural aspects. It features an uncontrolled spillway with a width of 95 feet and two uncontrolled outlet gates. Despite its moderate hazard potential and unavailability of a condition rating, the dam has not been inspected since January 2011. While there are no associated structures or inundation maps prepared, the dam's risk assessment is classified as moderate. The Emergency Action Plan (EAP) was last revised in March 2015, indicating some level of preparedness for potential emergencies.
Water resource and climate enthusiasts interested in White Lake Dam may find its recreational purpose and historical completion date intriguing. With ongoing risk management measures in place and regulatory oversight by TCEQ, the dam continues to play a crucial role in water management along the San Geronimo Creek. Future inspections and updates to the Emergency Action Plan will be essential for ensuring the safety and resilience of this important infrastructure.
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 White Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| San Geronimo Ck Nr Helotes | 3 cfs | → |
| Helotes Ck At Helotes | · | → |
| Cibolo Ck Nr Boerne | 12 cfs | → |
| Salado Ck At Wilderness Rd At San Antonio | 0 cfs | → |
| Salado Ck At Blanco Rd. San Antonio | · | → |
| Olmos Ck At Dresden Dr | 23 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near White Lake Dam.
Boat launches
- Pop's Place. Medina Lake.
- Paradise Canyon. Medina River Access.
- Woodlawn Lake Trail San Antonio
- Nichols Landing. Guadalupe River Access
- Rebecca Creek. Canyon Lake.
Campgrounds
- Lackland Afb Military
- Castroville Regional Park
- Wilderness Camp Area
- Butterfly Springs Camp Area
- Hermit's Shack Camp Area
Fishing spots
Track White Lake 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 White Lake Dam
Where does the data for White Lake 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 White Lake Dam.