4-s Ranch Reclamation Reservoir

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

CountySan Diego
Nearest CitySan Diego
River/StreamArtesian Creek
Coordinates33.01470, -117.11300

Physical Characteristics

Dam TypeEarth
NID Height22 ft
Dam Height22 ft
Dam Length1,270 ft
Year Completed2000 (26 years old)

Storage & Hydraulics

NID Storage410 acre-ft
Max Storage410 acre-ft
Surface Area13 acres

Ownership & Safety

PurposeWater Supply
OwnerOlivenhain Municipal Water District
Owner TypePublic Utility
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection04/03/2025
Emergency Action PlanYes

Identifiers

NID IDCA01446
Federal IDCA01446
More InfoState Dam Safety Program

Nearby Dams

Upper 4s Ranch 1.1 mi Low Santa Fe Seasonal Storage 1.4 mi Low Bernardo Reservoir 1.8 mi High Black Mountain Water Tank 2.2 mi High Lake Hodges 2.4 mi High Fairbanks 4.0 mi High Olivenhain 4.3 mi High San Dieguito 5.2 mi High Poway 6.0 mi High Ramona 6.7 mi High