Plum Creek Ws Scs Site 7 Dam Reservoir Report

Last Updated: December 5, 2025

Plum Creek WS SCS Site 7 Dam, located in Hays County, Texas, serves as a crucial flood risk reduction structure along the TR-Plum Creek.


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Summary

Built in 1975 by the USDA NRCS, this earth dam stands at 36 feet tall and stretches over 1039 feet in length. With a storage capacity of 498 acre-feet, it plays a significant role in managing water flow and protecting the surrounding areas from potential flooding events.

Managed by the Texas Commission on Environmental Quality (TCEQ), Plum Creek WS SCS Site 7 Dam has been rated in fair condition as of December 2016, with a moderate risk assessment of 3. The dam features an uncontrolled spillway and outlet gates for water release, ensuring efficient water management during heavy rainfall events. With a drainage area of 0.8 square miles and a maximum discharge capacity of 4495 cubic feet per second, this structure plays a vital role in safeguarding the local community and environment from the impacts of extreme weather events.

As a local government-owned structure, Plum Creek WS SCS Site 7 Dam stands as a testament to the collaborative efforts between federal and state agencies in ensuring the safety and resilience of water resources in the region. With regular inspections and maintenance, this dam continues to serve its primary purpose of flood risk reduction, highlighting the importance of proactive infrastructure management in the face of changing climate patterns and increasing water-related challenges.

Year Completed

1975

Dam Length

1039

Dam Height

36

River Or Stream

TR-PLUM CREEK

Primary Dam Type

Earth

Surface Area

11.3

Hydraulic Height

36

Drainage Area

0.8

Nid Storage

498

Structural Height

36

Outlet Gates

Slide (sluice gate) - 1, Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Rock, Soil

Nid Height

36
       
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.