Upper Pecan Bayou Ws Scs Site 12 Dam Reservoir Report

Last Updated: December 5, 2025

Upper Pecan Bayou WS SCS Site 12 Dam, located in Callahan, Texas, was completed in 1967 by the USDA NRCS for flood risk reduction along the Condemn Branch.


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Summary

This earth dam stands at 65 feet in height and stretches 1400 feet in length, providing a maximum storage capacity of 5707 acre-feet. The dam features a buttress core type and an uncontrolled spillway with a width of 200 feet, capable of handling a maximum discharge of 26000 cubic feet per second.

Managed by the local government and regulated by the Texas Commission on Environmental Quality (TCEQ), Upper Pecan Bayou WS SCS Site 12 Dam serves as a vital structure for the protection of surrounding areas from flooding events. The dam has not been rated for its condition assessment, but is considered to have a moderate risk potential. It is equipped with one slide gate and four uncontrolled gates for water release, ensuring effective flood control measures are in place.

Enthusiasts of water resources and climate will find Upper Pecan Bayou WS SCS Site 12 Dam to be an essential component in the management of water flow and flood risk in the region. With a focus on flood risk reduction, this dam exemplifies the importance of infrastructure in safeguarding communities and ecosystems from the impacts of extreme weather events.

Year Completed

1967

Dam Length

1400

Dam Height

65

River Or Stream

CONDEMN BRANCH

Primary Dam Type

Earth

Hydraulic Height

65

Nid Storage

5707

Structural Height

65

Outlet Gates

Slide (sluice gate) - 1, Uncontrolled - 4

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

65
       
Seasonal Comparison

Weather Forecast

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. 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

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, 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.