Bridgeport Dam Reservoir Report

Last Updated: December 5, 2025

Bridgeport Dam, located in Wise County, Texas, serves as a vital flood risk reduction and water supply structure along the West Fork Trinity River.


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Summary

Built in 1931, this earth dam stands at a height of 130 feet and spans a length of 2040 feet, with a storage capacity of 923,814 acre-feet. The dam is regulated by the Texas Commission on Environmental Quality (TCEQ) and undergoes regular inspections to ensure its structural integrity.

Designed by Freese & Nichols Inc. and Hawley and Freese and Nichols, the dam features stone core types and a soil foundation. It boasts a spillway width of 800 feet and a maximum discharge capacity of 109,600 cubic feet per second, providing effective flood control measures for the surrounding areas. The dam's condition was assessed as satisfactory in 2014, with a five-year inspection frequency to monitor its operational efficiency and safety.

Bridgeport Dam plays a crucial role in managing water resources and mitigating flood risks in the region, showcasing the collaborative efforts of state agencies and designers in safeguarding communities and infrastructure. As a key player in the water supply network, the dam stands as a testament to engineering excellence and environmental stewardship in ensuring the sustainable utilization of water resources for future generations.

Years Modified

1971 - Structural

Year Completed

1931

Dam Length

2040

Dam Height

130

River Or Stream

WEST FORK TRINITY RIVER

Primary Dam Type

Earth

Surface Area

12940

Hydraulic Height

130

Drainage Area

1111

Nid Storage

923814

Structural Height

130

Outlet Gates

Other Controlled - 1, Slide (sluice gate) - 1, Uncontrolled - 1

Hazard Potential

Not Available

Foundations

Soil

Nid Height

130
       
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.