Old Lampasas West Dam

Old Lampasas West Dam is an earth dam located in Travis County, Texas, built in 2001. It carries a High hazard potential classification and has a fair condition assessment.

About Old Lampasas West Dam

The primary purpose of Old Lampasas West Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by City Of Austin (local government). It impounds the Tr-bullcreek near Austin.

The dam stands 37 feet tall and stretches 700 feet across, has a maximum storage capacity of 506 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 2001, the structure is relatively new.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 07/21/2021.

At 37 feet, this dam is taller than 84% of dams nationwide.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Texas dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateTexas
CountyTravis
Nearest CityAustin
River/StreamTr-bullcreek
Coordinates30.42216, -97.81036

Physical Characteristics

Dam TypeEarth
NID Height37 ft
Dam Height37 ft
Dam Length700 ft
Year Completed2001 (25 years old)

Storage & Hydraulics

NID Storage506 acre-ft
Max Storage506 acre-ft
Drainage Area1 sq mi
Max Discharge2,367 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerCITY OF AUSTIN
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection07/21/2021
Emergency Action PlanYes

Identifiers

NID IDTX07082
Federal IDTX07082
More InfoState Dam Safety Program

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