Upper Occoquan Sewage Authority Dam

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateVirginia
CountyFairfax
River/StreamTR-Bull Run
Coordinates38.80260, -77.45720

Physical Characteristics

Dam TypeEarth
NID Height41 ft
Dam Height41 ft
Dam Length1,680 ft

Storage & Hydraulics

NID Storage1,130 acre-ft
Max Storage1,130 acre-ft
Normal Storage515 acre-ft
Surface Area54 acres
Drainage Area0 sq mi

Ownership & Safety

PurposeOther
OwnerUOSA
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection09/22/2022
Emergency Action PlanYes

Identifiers

NID IDVA059024
Federal IDVA059024
More InfoState Dam Safety Program

Nearby Dams

Emergency Sewage Retention Pond No.1 Structure 0.3 mi Significant Emergency Sewage Retention Pond No.2 Structure 0.4 mi Significant Compton Village Lake Dam 0.9 mi Undetermined Lakeside Dam No. 2 2.3 mi Undetermined Trinity Centre Dam 2.8 mi Undetermined South Twin Lake Dam 3.0 mi Significant Lake Plaza Prop Dam 3.0 mi Undetermined North Twin Lake Dam 3.1 mi Significant Manassas Nbp, Noname Dam #1 Thru 10 3.3 mi Low Hampton Forest Section 4 Swm Dam 4.2 mi High