Tehuacana Creek Ws Scs Site 20 Dam

Tehuacana Creek Ws Scs Site 20 Dam is an earth dam located in McLennan County, Texas, built in 1963. It carries a High hazard potential classification and has a fair condition assessment.

About Tehuacana Creek Ws Scs Site 20 Dam

The primary purpose of Tehuacana Creek Ws Scs Site 20 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 Mclennan County;mclennan County Swcd;mclennan Hill Counties Tehuacana Creek Wcid 1 (local government). It impounds the Tr-williams Creek.

The dam stands 32 feet tall and stretches 5,550 feet across, creates a reservoir covering 31 acres, has a maximum storage capacity of 1,125 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1963, the structure is well into its service life at over 50 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. 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 03/31/2021.

At 32 feet, this dam is taller than 76% 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
CountyMcLennan
River/StreamTr-williams Creek
Coordinates31.68639, -96.92924

Physical Characteristics

Dam TypeEarth
NID Height32 ft
Dam Height25 ft
Dam Length5,550 ft
Year Completed1963 (63 years old)

Storage & Hydraulics

NID Storage1,125 acre-ft
Max Storage1,125 acre-ft
Normal Storage130 acre-ft
Surface Area31 acres
Drainage Area1 sq mi
Max Discharge2,290 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerMCLENNAN COUNTY;MCLENNAN COUNTY SWCD;MCLENNAN HILL COUNTIES TEHUACANA CREEK WCID 1
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection03/31/2021
Emergency Action PlanYes

Identifiers

NID IDTX04121
Federal IDTX04121
More InfoState Dam Safety Program

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