Nolan Creek Ws Scs Site 9 Dam Reservoir Report

Last Updated: December 5, 2025

Located in Nolanville, Texas, the Nolan Creek WS SCS Site 9 Dam is a crucial infrastructure designed by the USDA NRCS in 1967 for flood risk reduction along the TR-South Nolan Creek.


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Summary

Standing at a height of 46 feet with a length of 2200 feet, this earth dam plays a vital role in managing water flow and protecting the surrounding areas from potential flooding events. With a storage capacity of 1543 acre-feet and a maximum discharge of 19625 cubic feet per second, the dam serves as a key component in safeguarding the community against water-related hazards.

The dam's spillway, with a width of 552 feet, is uncontrolled and designed to release excess water to prevent overtopping during heavy rainfall events. The structure has been assessed to be in fair condition as of November 2017, with a moderate risk level assigned to it. Regular inspections are carried out every 5 years to ensure its integrity and functionality. With its strategic location and design, the Nolan Creek WS SCS Site 9 Dam stands as a testament to effective water resource management and climate resilience efforts in the region, making it a notable site for water resource and climate enthusiasts to study and appreciate.

Year Completed

1967

Dam Length

2200

Dam Height

46

River Or Stream

TR-SOUTH NOLAN CREEK

Primary Dam Type

Earth

Surface Area

16

Hydraulic Height

46

Drainage Area

3.6

Nid Storage

1543

Structural Height

46

Outlet Gates

Slide (sluice gate) - 1, Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Rock, Soil

Nid Height

46
       
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.