Upper Buffalo #33a Dam

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateWest Virginia
CountyMarion
Nearest CityMANNINGTON
River/StreamFLAT RUN
Coordinates39.59444, -80.33306

Physical Characteristics

Dam TypeEarth
NID Height51 ft
Dam Height51 ft
Dam Length393 ft
Year Completed1992 (34 years old)

Storage & Hydraulics

NID Storage503 acre-ft
Max Storage503 acre-ft
Normal Storage51 acre-ft
Surface Area6 acres
Drainage Area1 sq mi
Max Discharge9,249 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerMonongahela CD
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection06/30/2025
Emergency Action PlanYes

Identifiers

NID IDWV04934
Federal IDWV04934
More InfoState Dam Safety Program

Nearby Dams

Upper Buffalo No.39 1.8 mi High Lewellyn Amd Impoundment 1.8 mi High Upper Buffalo No.22 Dam 2.8 mi High Harvey Run No. 2 Slurry Impoundment 2.8 mi High Rachel Hunting & Fishing Dam 4.5 mi High Upper Buffalo No.16 4.5 mi High Mannington Water Supply Dam 4.7 mi High Upper Buffalo Creek 37a 5.8 mi High Upper Buffalo No.2 6.7 mi High Wilson Hollow Slurry Imp 8.3 mi High