Pohick Creek Dam #2

Pohick Creek Dam #2 is an earth dam located in Fairfax County, Virginia. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Pohick Creek Dam #2

The primary purpose of Pohick Creek Dam #2 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 Fairfax County Board Of Supervisors (local government). It impounds the Tr-sideburn Branch.

The dam stands 39 feet tall and stretches 698 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 560 acre-feet, and collects water from a drainage area of 0 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 10/14/2021.

At 39 feet, this dam is taller than 86% 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/StreamTr-sideburn Branch
Coordinates38.79620, -77.30810

Physical Characteristics

Dam TypeEarth
NID Height39 ft
Dam Height39 ft
Dam Length698 ft

Storage & Hydraulics

NID Storage560 acre-ft
Max Storage560 acre-ft
Normal Storage80 acre-ft
Surface Area9 acres
Drainage Area0 sq mi

Ownership & Safety

PurposeFlood Risk Reduction
OwnerFairfax County Board of Supervisors
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection10/14/2021
Emergency Action PlanYes

Identifiers

NID IDVA059023
Federal IDVA059023
More InfoState Dam Safety Program

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