Lake Audubon Dam

Lake Audubon Dam is an earth dam located in Fairfax County, Virginia. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Lake Audubon Dam

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

The dam stands 46 feet tall and stretches 340 feet across, creates a reservoir covering 44 acres, has a maximum storage capacity of 1,364 acre-feet, and collects water from a drainage area of 2 square miles.

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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 02/09/2021.

At 46 feet, this dam is taller than 91% 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 Virginia 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 HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateVirginia
CountyFairfax
River/StreamSnakeden Branch
Coordinates38.93270, -77.32520

Physical Characteristics

Dam TypeEarth
NID Height46 ft
Dam Height46 ft
Dam Length340 ft

Storage & Hydraulics

NID Storage1,364 acre-ft
Max Storage1,364 acre-ft
Normal Storage410 acre-ft
Surface Area44 acres
Drainage Area2 sq mi

Ownership & Safety

PurposeRecreation
OwnerReston Association;Reston Association;Reston Association
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection02/09/2021
Emergency Action PlanYes

Identifiers

NID IDVA059021
Federal IDVA059021
More InfoState Dam Safety Program

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