Sedimentation Pond No 11 Stage 1 Reservoir Report

Last Updated: December 5, 2025

Sedimentation Pond No 11 Stage 1 in Leon, Texas, is a private earth dam designed for tailings storage on Red Hollow Creek.


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Summary

With a storage capacity of 192 acre-feet and a surface area of 7 acres, this pond serves as a crucial infrastructure for managing sedimentation in the area. The dam stands at a height of 20 feet, with a hydraulic height matching that measurement, ensuring effective containment of tailings materials.

Despite being privately owned, this sedimentation pond is regulated by the state, with permitting and inspection requirements in place to ensure its structural integrity and environmental impact. The risk assessment for this dam indicates a high risk level, highlighting the importance of proper maintenance and management measures. While the condition assessment is currently marked as "Not Rated," ongoing evaluations and adherence to regulatory guidelines are essential for ensuring the safety and efficiency of Sedimentation Pond No 11 Stage 1 for the long term.

Located within the Fort Worth District and under the jurisdiction of the state of Texas, Sedimentation Pond No 11 Stage 1 plays a vital role in managing tailings and sedimentation along Red Hollow Creek. With its primary purpose being tailings storage, this earth dam with buttress core types represents a key infrastructure for water resource and climate enthusiasts to monitor and support. As efforts continue to assess and address the risks associated with this dam, it remains a focal point for environmental stewardship and sustainable water management practices in the region.

Dam Height

20

River Or Stream

RED HOLLOW CREEK

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

20

Drainage Area

1.1

Nid Storage

192

Structural Height

20

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

20
       
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.