Hillbolt Lake Dam Reservoir Report
Nearby: Conner Lake Dam Moore Lake Dam
Last Updated: December 5, 2025
Hillbolt Lake Dam, located in Austin, Texas, is a privately owned structure with a primary purpose of serving as a fire protection, stock, or small fish pond.
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Summary
Built in 1960, this earth-type dam stands at a height of 20 feet and has a length of 575 feet, providing a storage capacity of 80 acre-feet. Situated on the TR-Cat Springs Creek, this dam plays a crucial role in managing water resources and supporting various aquatic ecosystems in the region.
Despite not being regulated by the state, Hillbolt Lake Dam has undergone state permitting and inspection processes to ensure its safety and functionality. With a high hazard potential, this dam poses a moderate risk to the surrounding area, highlighting the importance of regular monitoring and maintenance. While there are no spillways or locks associated with this structure, it serves as a vital resource for local fire protection and livestock management, showcasing the versatile benefits of well-designed water infrastructure.
Overall, Hillbolt Lake Dam stands as a significant landmark in the water resource management of Austin, Texas, demonstrating the intersection of human development and environmental conservation. As climate change continues to impact water availability and quality, structures like this dam play a crucial role in sustaining ecosystems and meeting the diverse needs of the community. By prioritizing safety, regulatory compliance, and risk management, Hillbolt Lake Dam serves as a model for sustainable water infrastructure in the face of evolving climate challenges.
Year Completed |
1960 |
Dam Length |
575 |
Dam Height |
20 |
River Or Stream |
TR-CAT SPRINGS CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
20 |
Nid Storage |
80 |
Structural Height |
20 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Mill Ck Nr Bellville
|
8cfs |
Brazos Rv At San Felipe
|
2310cfs |
Redgate Ck Nr Columbus
|
1cfs |
Colorado Rv At Columbus
|
216cfs |
Brazos Rv Nr Hempstead
|
1800cfs |
Cypress Ck At Katy-Hockley Rd Nr Hockley
|
24cfs |
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.
Hillbolt Lake Dam