East Fork Above Lavon Ws Scs Site 20a Dam

East Fork Above Lavon Ws Scs Site 20a Dam is an earth dam located in Grayson County, Texas, built in 1966. It carries a High hazard potential classification and has a fair condition assessment.

About East Fork Above Lavon Ws Scs Site 20a Dam

The primary purpose of East Fork Above Lavon Ws Scs Site 20a 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 Grayson County;upper Elm Red Swcd (local government). It impounds the Tr-east Fork Trinity River.

The dam stands 44 feet tall and stretches 2,730 feet across, creates a reservoir covering 41 acres, has a maximum storage capacity of 3,458 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1966, 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 11/09/2020.

At 44 feet, this dam is taller than 90% 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
CountyGrayson
River/StreamTr-east Fork Trinity River
Coordinates33.48240, -96.69858

Physical Characteristics

Dam TypeEarth
NID Height44 ft
Dam Height44 ft
Dam Length2,730 ft
Year Completed1966 (60 years old)

Storage & Hydraulics

NID Storage3,458 acre-ft
Max Storage3,458 acre-ft
Normal Storage200 acre-ft
Surface Area41 acres
Drainage Area6 sq mi
Max Discharge2,865 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerGRAYSON COUNTY;UPPER ELM RED SWCD
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection11/09/2020
Emergency Action PlanYes

Identifiers

NID IDTX02113
Federal IDTX02113
More InfoState Dam Safety Program

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