Shannon Clark Dam Reservoir Report

Last Updated: December 5, 2025

Shannon Clark Dam, located in Gregg County, Texas, is a private-owned structure built in 2000 with a primary purpose of serving as an Earth-type dam on Glade Creek.


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Summary

Standing at a height of 20 feet and a length of 186 feet, the dam has a storage capacity of 25 acre-feet and is designed with an uncontrolled outlet gate. Despite its modest size, the dam poses a high risk (Level 2) according to risk assessment, although the hazard potential and condition assessment are not available.

Operated by private owners, Shannon Clark Dam is not regulated by the state but does undergo regular inspections. The dam, with its buttress core type and unlisted/unknown foundation, lacks a spillway and locks. While it serves a primarily "other" purpose, the dam's location on Glade Creek highlights its significance in managing water resources in the area and mitigating flood risks. The dam's presence in the Fort Worth District adds to its importance in the region's water resource management efforts.

Overall, Shannon Clark Dam stands as a critical infrastructure in the water resource system of Gregg County, Texas. Despite its small size, the dam plays a significant role in maintaining water levels and potentially mitigating flood risks in the area. As climate change continues to impact water resources, structures like Shannon Clark Dam will become increasingly vital in ensuring the sustainability and resilience of the region's water supply and infrastructure.

Year Completed

2000

Dam Length

186

Dam Height

20

River Or Stream

GLADE CREEK

Primary Dam Type

Earth

Drainage Area

40

Nid Storage

25

Outlet Gates

Uncontrolled - 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.