Laguna Regulating Basin

Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

CountyLos Angeles
River/StreamLaguna Wash
Coordinates34.06390, -118.16420

Physical Characteristics

Dam TypeEarth
NID Height43 ft
Dam Height43 ft
Dam Length380 ft
Year Completed1970 (56 years old)

Storage & Hydraulics

NID Storage310 acre-ft
Max Storage310 acre-ft
Surface Area12 acres
Drainage Area5 sq mi

Ownership & Safety

PurposeFlood Risk Reduction
OwnerLos Angeles County Department Of Public Works
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection11/19/2025
Emergency Action PlanYes

Identifiers

NID IDCA00203
Federal IDCA00203
More InfoState Dam Safety Program

Nearby Dams

Garvey Reservoir 2.9 mi High Elysian 3.9 mi High Eagle Rock 5.9 mi High Silver Lake 6.2 mi High Glenoaks 968 Reservoir 6.8 mi High Whittier Narrows Dam 6.9 mi High Whittier Reservoir No. 4 8.2 mi Low Chevy Chase 1290 Reservoir 8.2 mi High Eaton Wash Debris Basin 8.3 mi High Devils Gate 8.4 mi High