E Rawling Lower Tank Dam Reservoir Report

Last Updated: December 5, 2025

E Rawling Lower Tank Dam, located in Coke County, Texas, stands as a vital water supply structure completed in 1955.


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Summary

The dam, primarily owned by a private entity, serves the important purpose of water supply for the surrounding area. With a height of 25 feet and a length of 500 feet, the dam has a storage capacity of 600 acre-feet, with a normal storage level of 320 acre-feet.

Situated on Turkey Creek, the E Rawling Lower Tank Dam is regulated by the Texas Commission on Environmental Quality (TCEQ) and undergoes regular inspections and enforcement measures to ensure its structural integrity. Despite a high hazard potential rating, the dam's condition remains unrated, posing potential risks that necessitate effective risk management strategies. With no spillway and limited drainage area, the dam's design features an earth core with buttress and an outlet gate for operational control.

Water resource and climate enthusiasts are drawn to the E Rawling Lower Tank Dam for its historical significance, engineering design, and essential role in providing water supply to the region. This dam represents a critical infrastructure for managing water resources in Coke County, Texas, showcasing the intersection of human ingenuity and environmental stewardship in harnessing and distributing water effectively for various needs. The dam's risk assessment and management measures are key considerations for ensuring the continued safety and functionality of this important water supply structure.

Year Completed

1955

Dam Length

500

Dam Height

25

River Or Stream

TURKEY CREEK

Primary Dam Type

Earth

Surface Area

40

Hydraulic Height

25

Nid Storage

600

Structural Height

25

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

25
       
Seasonal Comparison

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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.