Old Lampasas Dam

Old Lampasas Dam is an earth dam located in Travis County, Texas, built in 1984. It carries a High hazard potential classification.

About Old Lampasas Dam

Old Lampasas Dam is a dam in Travis, Texas. The dam is owned by City Of Austin (local government). It impounds the Tr. Bull Creek.

The dam stands 34 feet tall and stretches 480 feet across, has a maximum storage capacity of 73 acre-feet, and collects water from a drainage area of 248 square miles. Completed in 1984, the structure is 42 years old.

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. An emergency action plan is in place for this dam. The most recent inspection on record was 02/14/2018. That was 8 years ago, which is on the longer end for a high-hazard structure.

At 34 feet, this dam is taller than 80% 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 HazardNot Rated ConditionEmergency Action Plan: Yes

Location

StateTexas
CountyTravis
River/StreamTr. Bull Creek
Coordinates30.42171, -97.79840

Physical Characteristics

Dam TypeEarth
NID Height34 ft
Dam Height34 ft
Dam Length480 ft
Year Completed1984 (42 years old)

Storage & Hydraulics

NID Storage73 acre-ft
Max Storage73 acre-ft
Drainage Area248 sq mi
Max Discharge2 cfs
Spillway TypeUncontrolled

Ownership & Safety

OwnerCITY OF AUSTIN
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection02/14/2018
Emergency Action PlanYes

Identifiers

NID IDTX07295
Federal IDTX07295
More InfoState Dam Safety Program

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