Lake Alazan Dam

Lake Alazan Dam is an earth dam located in Nacogdoches County, Texas, built in 1913. It carries a Significant hazard potential classification and has a poor condition assessment.

About Lake Alazan Dam

The primary purpose of Lake Alazan Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lake Alazan Association (private). It impounds the Alazan Bayou.

The dam stands 25 feet tall and stretches 833 feet across, creates a reservoir covering 64 acres, has a maximum storage capacity of 1,261 acre-feet, and collects water from a drainage area of 11 square miles. Completed in 1913, the structure is over a century old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 06/15/2022.

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Significant HazardPoor ConditionEmergency Action Plan: Yes

Location

StateTexas
CountyNacogdoches
River/StreamAlazan Bayou
Coordinates31.50325, -94.75437

Physical Characteristics

Dam TypeEarth
NID Height25 ft
Dam Height23 ft
Dam Length833 ft
Year Completed1913 (113 years old)

Storage & Hydraulics

NID Storage1,261 acre-ft
Max Storage1,261 acre-ft
Normal Storage470 acre-ft
Surface Area64 acres
Drainage Area11 sq mi
Max Discharge8,812 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerLAKE ALAZAN ASSOCIATION
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection06/15/2022
Emergency Action PlanYes

Identifiers

NID IDTX03870
Federal IDTX03870
More InfoState Dam Safety Program

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