South Twin Lake Dam

Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateVirginia
CountyFairfax
River/StreamMoore Creek
Coordinates38.81590, -77.40510

Physical Characteristics

Dam TypeEarth
NID Height14 ft
Dam Height14 ft
Dam Length520 ft

Storage & Hydraulics

NID Storage118 acre-ft
Max Storage118 acre-ft
Normal Storage83 acre-ft
Drainage Area1 sq mi

Ownership & Safety

PurposeRecreation
OwnerFairfax County Park Authority;Fairfax County Park Authority
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection04/28/2022
Emergency Action PlanYes

Identifiers

NID IDVA059011
Federal IDVA059011
More InfoState Dam Safety Program

Nearby Dams

North Twin Lake Dam 0.3 mi Significant Hampton Forest Section 4 Swm Dam 1.6 mi High Compton Village Lake Dam 2.1 mi Undetermined Lakeside Dam No. 2 2.3 mi Undetermined Trinity Centre Dam 2.5 mi Undetermined Upper Occoquan Sewage Authority Dam 3.0 mi High Emergency Sewage Retention Pond No.1 Structure 3.2 mi Significant Emergency Sewage Retention Pond No.2 Structure 3.3 mi Significant Fair Lakes Land Bay 2 Swm Bmp Pond Dam 3.3 mi High East Market Pond Dam 3.4 mi Significant