Lake Dawson Dam Reservoir Report

Last Updated: December 5, 2025

Lake Dawson Dam, located in Trinity, Texas, is a private earth dam primarily used for recreation purposes.


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Summary

Built in 1957, this dam on the TR-Sandy Creek is 19 feet in height and spans 500 feet in length, with a storage capacity of 240 acre-feet. While it doesn't have a spillway, it does have a single outlet gate.

Despite being privately owned and not regulated by the state, Lake Dawson Dam poses a high risk due to its condition assessment not being rated and its hazard potential not available. This makes it crucial for regular inspections and potential risk management measures to ensure the safety of the surrounding community and environment. With its picturesque location and recreational opportunities, Lake Dawson Dam remains a popular destination for water resource and climate enthusiasts to enjoy the natural beauty of Trinity, Texas.

Year Completed

1957

Dam Length

500

Dam Height

19

River Or Stream

TR-SANDY CREEK

Primary Dam Type

Earth

Surface Area

15

Hydraulic Height

19

Nid Storage

240

Structural Height

19

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

19
       
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.