Upper Pecan Bayou Ws Scs Site 21 Dam Reservoir Report
Last Updated: December 5, 2025
The Upper Pecan Bayou WS SCS Site 21 Dam, located in Callahan, Texas, is a crucial structure designed for irrigation purposes.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1967 by the USDA NRCS, this earth dam stands at a height of 37 feet and stretches 1980 feet in length. With a storage capacity of 897 acre-feet, it serves as a vital resource for the surrounding agricultural community. The dam is regulated by the Texas Commission on Environmental Quality (TCEQ) and undergoes regular inspections to ensure its continued safety and functionality.
The dam's spillway, with a width of 50 feet, is uncontrolled and can discharge up to 3600 cubic feet per second. Although not rated for its condition, the dam poses a moderate risk (Level 3) according to the data available. In case of emergencies, the dam has two uncontrolled outlet gates to manage water flow. Despite its hazard potential not being available, the dam plays a significant role in water resource management for the area, highlighting the importance of proper maintenance and regulation to mitigate risks and ensure its continued effectiveness in irrigation operations.
As a part of the Fort Worth District and owned by the local government, the Upper Pecan Bayou WS SCS Site 21 Dam exemplifies the collaborative effort between federal and state agencies in managing water resources. With its primary purpose of irrigation, the dam stands as a testament to the importance of sustainable water management practices in the face of climate variability and increasing water demands. Its location on the TR-Little Pecan Bayou underscores the interconnectedness of water resources and the environment, making it a vital asset to the community and a focal point for water resource and climate enthusiasts.
Year Completed |
1967 |
Dam Length |
1980 |
Dam Height |
37 |
River Or Stream |
TR-LITTLE PECAN BAYOU |
Primary Dam Type |
Earth |
Hydraulic Height |
37 |
Nid Storage |
897 |
Structural Height |
37 |
Outlet Gates |
Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
37 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Pecan Bayou Nr Cross Cut
|
436cfs |
Jim Ned Ck At Cr 140 Nr Coleman
|
0cfs |
Hords Ck Nr Coleman
|
0cfs |
Deep Ck At Moran
|
0cfs |
Copperas Ck At Fm 2247 Nr Comanche
|
2cfs |
Sabana Rv Nr De Leon
|
0cfs |
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 21 Dam