Highway Lake Dam A Reservoir Report
Nearby: Highway Lake Dam B Highway Lake Dam C
Last Updated: December 26, 2025
Highway Lake Dam A, located in Harrison, Texas, is a privately owned earth dam that was completed in 1925 for the primary purpose of recreation.
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Summary
This structure stands at a height of 12 feet and has a length of 620 feet, creating a reservoir with a maximum storage capacity of 75 acre-feet and a normal storage of 28 acre-feet. The dam is situated on TR-Clarks Creek and is under the jurisdiction of the state of Texas.
Despite being a privately owned dam, Highway Lake Dam A is not regulated by the state and lacks enforcement measures. The dam features an uncontrolled spillway with a width of 20 feet and two uncontrolled outlet gates. The last inspection of the dam was conducted in June 2010, with a moderate risk assessment of 3 out of 5. While the condition of the dam is currently not rated, it is important for water resource and climate enthusiasts to monitor its maintenance and safety protocols to ensure the protection of surrounding areas.
In the event of an emergency, it is unclear whether an Emergency Action Plan (EAP) has been prepared for Highway Lake Dam A. The dam's hazard potential is not available, and there is no indication of inundation maps or risk management measures in place. With the risk assessment suggesting a moderate level of risk, it is essential for stakeholders to prioritize the safety of the dam and surrounding communities by implementing necessary precautions and emergency response protocols.
Years Modified |
1989 - Other |
Year Completed |
1925 |
Dam Length |
620 |
Dam Height |
12 |
River Or Stream |
TR-CLARKS CREEK |
Primary Dam Type |
Earth |
Surface Area |
4.8 |
Hydraulic Height |
12 |
Drainage Area |
0.2 |
Nid Storage |
75 |
Structural Height |
12 |
Outlet Gates |
Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Soil |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Sabine Rv Bl Longview
|
236cfs |
Sabine Rv Abv Longview
|
192cfs |
Little Cypress Ck Nr Ore City
|
51cfs |
Big Cypress Ck Nr Jefferson
|
95cfs |
Rabbit Ck At Kilgore
|
15cfs |
Sabine Rv Nr Beckville
|
294cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Highway Lake Dam A