Galveston County Water Industrial Reservoir Dam Reservoir Report

Last Updated: April 1, 2026

The Galveston County Water Industrial Reservoir Dam, located in La Marque, Texas, is a significant earth dam completed in 1949 with a height of 14 feet and a length of 25,281 feet.


Summary

This dam serves multiple purposes including water supply, recreation, and other industrial uses, with a storage capacity of 11,368 acre-feet and a surface area of 812 acres. The dam is regulated by the Texas Commission on Environmental Quality (TCEQ) and undergoes regular inspections to ensure its fair condition and safety.

With a controlled spillway and a maximum discharge capacity of 1,077 cubic feet per second, the Galveston County Water Industrial Reservoir Dam plays a crucial role in managing water resources in the region. Despite its age, the dam has been maintained well and continues to meet regulatory standards. The dam's location off Ch-Dickinson Bayou further highlights its importance in flood control and water management for the surrounding area. For water resource and climate enthusiasts, the Galveston County Water Industrial Reservoir Dam stands as a testament to the engineering ingenuity and environmental stewardship required to sustainably manage water infrastructure in Texas.



°F

°F

mph

Wind

%

Humidity


15-Day Weather Outlook


Year Completed

1949

Dam Length

25281

Dam Height

14

River Or Stream

OFF CH-DICKINSON BAYOU

Primary Dam Type

Earth

Surface Area

812

Hydraulic Height

14

Drainage Area

1.27

Nid Storage

11368

Structural Height

14

Outlet Gates

Other Controlled - 13, Slide (sluice gate) - 4

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

14
       
Seasonal Comparison

5-Day Hourly Forecast Detail

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.