Orange County Reservoir

Low HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

CountyOrange
River/StreamTr Fullerton Cr
Coordinates33.93670, -117.88420

Physical Characteristics

Dam TypeEarth
NID Height103 ft
Dam Height103 ft
Dam Length655 ft
Year Completed1941 (85 years old)

Storage & Hydraulics

NID Storage217 acre-ft
Max Storage217 acre-ft
Surface Area7 acres
Drainage Area0 sq mi

Ownership & Safety

PurposeWater Supply
OwnerMetropolitan Water District Of Southern California
Owner TypePublic Utility
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection08/13/2025
Emergency Action PlanYes

Identifiers

NID IDCA00218
Federal IDCA00218
More InfoState Dam Safety Program

Nearby Dams

30 Mg Central Reservoir 1.6 mi High Fullerton Dam 2.8 mi High Carbon Canyon Dam 3.0 mi High Brea Dam - Saddle Dike 1 3.4 mi High Diemer No. 8 3.9 mi Significant Diemer Ozone Contact Basin 4.0 mi High Diemer Reservoir 4.1 mi High Yorba 6.0 mi High Chino Ranch #1 6.7 mi Significant Walnut Canyon 10.0 mi High