Lake Bluebonnet Dam No 2 Reservoir Report

Last Updated: December 5, 2025

Located in Travis County, Texas, Lake Bluebonnet Dam No 2 is a privately owned earth dam that serves primarily for recreational purposes.


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Summary

With a height of 9 feet, this dam has a storage capacity of 197 acre-feet and a normal storage level of 85 acre-feet. The dam overlooks the TR-DECKER CREEK and is regulated by the Texas Commission on Environmental Quality (TCEQ).

Despite not having a spillway, the dam is equipped with one outlet gate. While the hazard potential of the dam is not available, its risk assessment is considered high. The condition assessment of the dam has not been rated, and it is not under the jurisdiction of any federal agency. The dam has not been inspected recently, and its emergency action plan status is unknown.

Water resource and climate enthusiasts would be interested in Lake Bluebonnet Dam No 2 for its unique design and purpose. The dam's location in a picturesque setting in Travis County adds to its appeal, making it a popular spot for outdoor activities. With its high risk assessment, there is a need for regular inspections and risk management measures to ensure the safety and integrity of the dam for both recreational and environmental purposes.

Dam Height

9

River Or Stream

TR-DECKER CREEK

Primary Dam Type

Earth

Surface Area

15

Hydraulic Height

9

Nid Storage

197

Structural Height

9

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

9
       
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.