Tehuacana Creek Ws Scs Site 28 Dam Reservoir Report

Last Updated: December 5, 2025

Tehuacana Creek WS SCS Site 28 Dam, located in McLennan County, Texas, was completed in 1963 by the USDA NRCS and serves as a vital infrastructure for flood risk reduction along Riggs Creek.


°F

°F

mph

Wind

%

Humidity

Summary

The primary purpose of this earth dam, with a height of 39 feet and a length of 2100 feet, is to protect the surrounding area from potential flooding events. With a normal storage capacity of 200 acre-feet and a maximum discharge rate of 10,954 cubic feet per second, the dam plays a crucial role in managing water flow and mitigating flood risks in the region.

This dam, regulated by the Texas Commission on Environmental Quality (TCEQ), is classified as having a moderate risk level (3) and is not currently rated for its condition. With an uncontrolled spillway and two outlet gates, the dam is designed to handle potential overflow and maintain water levels within the designated storage capacity. While specific inspection and emergency preparedness details are not available, the dam continues to be actively monitored and maintained by the local government to ensure the safety and integrity of the structure for the surrounding community.

The Tehuacana Creek WS SCS Site 28 Dam not only serves as a critical flood risk reduction measure but also supports fire protection, stock, and small fish pond activities in the area. As a key piece of infrastructure in water resource management, this dam plays a significant role in safeguarding the local ecosystem and enhancing the resilience of the community to potential climate-related challenges.

Year Completed

1963

Dam Length

2100

Dam Height

39

River Or Stream

RIGGS CREEK

Primary Dam Type

Earth

Surface Area

60

Hydraulic Height

39

Drainage Area

6.13

Nid Storage

3803

Structural Height

39

Outlet Gates

Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

39
       
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.