Nolan Creek Ws Scs Site 12 Dam Reservoir Report

Last Updated: December 5, 2025

Located in Bell County, Texas, the Nolan Creek WS SCS Site 12 Dam is a crucial structure designed by the USDA NRCS to manage flood risk along the TR-SOUTH NOLAN CREEK.


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Summary

Completed in 1970, this earth-type dam stands at a height of 31 feet and spans a length of 3150 feet, providing vital flood risk reduction for the surrounding area. With a storage capacity of 1229 acre-feet and a normal storage level of 144 acre-feet, this dam plays a significant role in safeguarding the community from potential flooding events.

Managed by the local government and regulated by the Texas Commission on Environmental Quality (TCEQ), the Nolan Creek WS SCS Site 12 Dam undergoes regular inspections to ensure its structural integrity and functionality. The dam features an uncontrolled spillway with a width of 152 feet and outlet gates including a slide (sluice gate) and two uncontrolled gates. Despite being assessed as in fair condition as of December 2017, the dam presents a moderate risk level (3) and is equipped with emergency action plans to guide response in case of a catastrophic event.

Enthusiasts of water resources and climate management will find the Nolan Creek WS SCS Site 12 Dam an intriguing example of engineering ingenuity in flood risk mitigation. With its strategic location, design features, and critical role in protecting the community from potential inundation, this dam serves as a testament to the importance of proactive infrastructure development in the face of changing environmental conditions.

Year Completed

1970

Dam Length

3150

Dam Height

31

River Or Stream

TR-SOUTH NOLAN CREEK

Primary Dam Type

Earth

Surface Area

17

Hydraulic Height

31

Drainage Area

1.6

Nid Storage

1229

Structural Height

31

Outlet Gates

Slide (sluice gate) - 1, Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Rock, Soil

Nid Height

31
       
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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.