Tehuacana Creek Ws Scs Site 21 Dam Reservoir Report
Last Updated: December 5, 2025
Located in McLennan County, Texas, Tehuacana Creek WS SCS Site 21 Dam is a crucial structure designed by the USDA NRCS in 1965 for flood risk reduction along Salt Creek.
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Summary
Standing at 40 feet tall and spanning 4400 feet in length, this Earth dam serves multiple purposes including fire protection, stock maintenance, and flood risk mitigation. With a normal storage capacity of 200 acre-feet and a drainage area of 8.06 square miles, the dam plays a vital role in water resource management in the region.
Managed by the local government and regulated by the Texas Commission on Environmental Quality (TCEQ), Tehuacana Creek WS SCS Site 21 Dam features a spillway width of 232 feet and is equipped with slide and uncontrolled outlet gates for water release. Despite being rated as "Not Available" in terms of hazard potential and "Not Rated" in condition assessment, the dam undergoes inspections every five years to ensure its structural integrity and functionality. With a maximum discharge capacity of 5064 cubic feet per second, the dam poses a moderate risk level (3) according to risk assessment.
In the event of emergencies, the dam's Emergency Action Plan (EAP) status and risk management measures are not currently available, highlighting the need for updated guidelines and preparedness protocols. As a vital component of the local water infrastructure, Tehuacana Creek WS SCS Site 21 Dam serves as a testament to collaborative efforts in water resource management and climate resilience in the region, emphasizing the importance of proactive maintenance and risk mitigation strategies for sustainable water management practices.
Year Completed |
1965 |
Dam Length |
4400 |
Dam Height |
40 |
River Or Stream |
SALT CREEK |
Primary Dam Type |
Earth |
Surface Area |
54 |
Hydraulic Height |
40 |
Drainage Area |
8.06 |
Nid Storage |
4632 |
Structural Height |
40 |
Outlet Gates |
Slide (sluice gate) - 1, Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Brazos Rv At Waco
|
337cfs |
Ash Ck At Hwy 171 Nr Malone
|
865cfs |
White Rk Ck At Fm 308 Nr Irene
|
515cfs |
Aquilla Ck Abv Aquilla
|
1cfs |
Brazos Rv Nr Aquilla
|
57cfs |
Richland Ck Nr Dawson
|
4cfs |
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.
Tehuacana Creek Ws Scs Site 21 Dam