Weymouth Memorial Reservoir

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

CountyLos Angeles
Nearest CitySan Dimas
River/StreamOffstream
Coordinates34.10990, -117.78400

Physical Characteristics

Dam TypeOther
NID Height18 ft
Dam Height18 ft
Dam Length2,400 ft
Year Completed1966 (60 years old)

Storage & Hydraulics

NID Storage151 acre-ft
Max Storage151 acre-ft
Surface Area8 acres

Ownership & Safety

PurposeWater Supply
OwnerMetropolitan Water District Of Southern California
Owner TypePublic Utility
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection02/27/2025
Emergency Action PlanYes

Identifiers

NID IDCA00222
Federal IDCA00222
More InfoState Dam Safety Program

Nearby Dams

Puddingstone Diversion 1.6 mi High Puddingstone 1.9 mi High Live Oak Reservoir 2.7 mi High Live Oak 2.7 mi High Morgan Debris Basin 3.0 mi High San Dimas 3.1 mi High Big Dalton Debris Basin 4.3 mi High Big Dalton 4.4 mi High Little Dalton Debris Basin 4.5 mi High Thompson Creek 4.5 mi High