O'neill Forebay Dike

Low HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateCalifornia
CountyMerced
Nearest CityVOLTA
River/StreamSAN LUIS CREEK OS
Coordinates37.10860, -121.05700

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height16 ft
Dam Length1,120 ft
Year Completed1967 (59 years old)

Storage & Hydraulics

NID Storage64,800 acre-ft
Max Storage64,800 acre-ft
Normal Storage56,430 acre-ft
Surface Area2,250 acres
Spillway TypeNone

Ownership & Safety

PurposeHydroelectric
OwnerBUREAU OF RECLAMATION
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentNot Available
Last Inspection05/17/2023
Emergency Action PlanYes

Identifiers

NID IDCA10171
Federal IDCA10171S001
More InfoState Dam Safety Program

Nearby Dams

B.f. Sisk Dike 2.9 mi High Los Banos Creek Detention Dam 10.6 mi High North Fork 13.6 mi High