B13 Dam Reservoir Report

Last Updated: December 5, 2025

B13 Dam, located in Harrison, Texas, stands as a private structure with a unique design.


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Summary

Standing at a height of 27 feet, this buttress dam serves a primary purpose that is classified as "Other." Despite its moderate hazard potential, the dam has not been rated for its condition and lacks regular inspections and enforcement.

With a storage capacity of 81 acre-feet and a spillway width of 117 feet, B13 Dam plays a crucial role in managing water resources in the area. The dam, completed at an unknown date, features an uncontrolled spillway and operates with two uncontrolled outlet gates. While it may not be under state regulation or jurisdiction, the dam's presence and functionality contribute to the overall water infrastructure in Texas.

For water resource and climate enthusiasts, B13 Dam serves as an intriguing structure to study and analyze in the context of water management and climate adaptation. Its location, design, and purpose provide valuable insights into the diverse landscape of dams and their role in supporting water resources in different regions. As efforts to assess and mitigate risks associated with dams continue, B13 Dam stands as a notable example of a privately-owned structure with significant implications for water sustainability and infrastructure development.

Dam Length

500

Dam Height

27

River Or Stream

Primary Dam Type

Other

Hydraulic Height

27

Nid Storage

81

Structural Height

27

Outlet Gates

Uncontrolled - 2

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.