Upper Pecan Bayou Ws Scs Site 9 Dam Reservoir Report
Last Updated: December 5, 2025
Located in Callahan, Texas, the Upper Pecan Bayou WS SCS Site 9 Dam stands as a testament to flood risk reduction efforts in the region.
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Summary
Constructed in 1967 by the USDA NRCS, this earth dam spans 1,320 feet with a height of 48.5 feet, serving as a crucial structure along the Cub Hollow river. With a storage capacity of 1,928 acre-feet and a normal storage of 70 acre-feet, the dam plays a vital role in managing water flow in the area.
Operated by the local government and regulated by the TCEQ, the dam features an uncontrolled spillway with a width of 152 feet. The structure is designed to handle a maximum discharge of 6,318 cubic feet per second, ensuring effective flood control measures for the surrounding areas. Despite its moderate risk rating, the dam's condition remains unrated as of the last inspection in 2011, highlighting the need for continued monitoring and maintenance to uphold its functionality and safety standards for the community.
As a key component in the region's water resource management system, the Upper Pecan Bayou WS SCS Site 9 Dam plays a crucial role in mitigating flood risks and protecting the local environment. With its strategic location and efficient design, the dam stands as a testament to the collaborative efforts between government agencies and the community to safeguard against potential water-related hazards. Moving forward, ongoing inspections and risk assessments will be essential in ensuring the dam's continued effectiveness in maintaining water quality and safeguarding against flooding events in the region.
Year Completed |
1967 |
Dam Length |
1320 |
Dam Height |
48.5 |
River Or Stream |
CUB HOLLOW |
Primary Dam Type |
Earth |
Surface Area |
11 |
Hydraulic Height |
48.5 |
Drainage Area |
6.17 |
Nid Storage |
1928 |
Structural Height |
48.5 |
Outlet Gates |
Slide (sluice gate) - 1, Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
49 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cedar Ck At Ih 20
|
0cfs |
Cat Claw Ck At Abilene
|
1cfs |
Deep Ck At Moran
|
0cfs |
Pecan Bayou Nr Cross Cut
|
436cfs |
Clear Fk Brazos Rv At Nugent
|
11cfs |
Clear Fk Brazos Rv At Hawley
|
3cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams 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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Upper Pecan Bayou Ws Scs Site 9 Dam