Sedimentation Pond No 15 Reservoir Report

Last Updated: December 5, 2025

Sedimentation Pond No 15, located in Leon, Texas, is a private earth dam structure with a primary purpose of tailings management.


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Summary

The dam has a height of 27 feet and a storage capacity of 92 acre-feet, serving as a vital component for controlling sediment runoff in the area. Despite not being regulated by the state, the dam is equipped with state permitting and inspection protocols to ensure its safety and functionality.

The pond, situated along the TR-LONG BRANCH river or stream, covers a surface area of 4 acres and has a drainage area of 0.2 square miles. With a high risk assessment rating of 2, it is crucial for water resource and climate enthusiasts to monitor the condition and maintenance of Sedimentation Pond No 15 to prevent any potential hazards or environmental impacts. The dam lacks a spillway and locks, emphasizing the need for strict adherence to safety measures and regular monitoring.

Although the dam's condition is currently not rated, the high-risk potential and lack of available information on emergency preparedness highlight the importance of implementing risk management measures. With no designated emergency action plan or updated contact information, it is essential for stakeholders to prioritize the safety and maintenance of Sedimentation Pond No 15 to mitigate any potential risks to the surrounding environment and communities.

Dam Height

27

River Or Stream

TR-LONG BRANCH

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

27

Drainage Area

0.2

Nid Storage

92

Structural Height

27

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

27
       
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.