Upper Pecan Bayou Ws Scs Site 18a Dam dam
Upper Pecan Bayou Ws Scs Site 18a Dam
The Upper Pecan Bayou WS SCS Site 18a Dam, located in Callahan, Texas, was completed in 1968 by the USDA NRCS to primarily serve as a flood risk reduction structure along the West Prong Burnt Branch. This earth dam stands at a height of 40 feet and stretches 4020 feet in length, with a storage capacity of 4035 acre-feet. Despite being uncontrolled, the dam features two outlet gates for water release in case of emergency.
Managed by the local government and regulated by the Texas Commission on Environmental Quality (TCEQ), the dam is regularly inspected and meets state permitting requirements. With a moderate risk assessment rating, the dam's hazard potential is currently not available, and its condition assessment remains unrated. Although the dam's emergency action plan status is unknown, its risk management measures are not specified, indicating a need for further evaluation of potential risks and preparedness protocols in case of emergencies. For water resource and climate enthusiasts, the Upper Pecan Bayou WS SCS Site 18a Dam offers a fascinating case study in flood risk reduction infrastructure and the importance of effective dam management in ensuring public safety and environmental protection.
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 Upper Pecan Bayou Ws Scs Site 18a Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Pecan Bayou Nr Cross Cut | 203 cfs | → |
| Jim Ned Ck At Cr 140 Nr Coleman | · | → |
| Hords Ck Nr Coleman | · | → |
| Deep Ck At Moran | · | → |
| Cedar Ck At Ih 20 | · | → |
| Cat Claw Ck At Abilene | · | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Upper Pecan Bayou Ws Scs Site 18a Dam.
Track Upper Pecan Bayou Ws Scs Site 18a 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 Upper Pecan Bayou Ws Scs Site 18a Dam
Where does the data for Upper Pecan Bayou Ws Scs Site 18a 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 Upper Pecan Bayou Ws Scs Site 18a Dam.