Galivan Retarding Basin

Low HazardSatisfactory ConditionEmergency Action Plan: No

Location

CountyOrange
River/StreamOso Creek
Coordinates33.56320, -117.67620

Physical Characteristics

Dam TypeEarth
NID Height14 ft
Dam Height14 ft
Dam Length600 ft
Year Completed2000 (26 years old)

Storage & Hydraulics

NID Storage169 acre-ft
Max Storage169 acre-ft
Surface Area17 acres
Drainage Area13 sq mi

Ownership & Safety

PurposeWater Supply
OwnerCounty of Orange
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection09/23/2025
Emergency Action PlanNo

Identifiers

NID IDCA01427
Federal IDCA01427
More InfoState Dam Safety Program

Nearby Dams

Sulphur Creek 2.0 mi High Upper Chiquita 3.9 mi High El Toro Reservoir 4.2 mi High Lake Mission Viejo 4.7 mi High Rossmoor No. 1 5.0 mi High Veeh 5.4 mi High Trampas Canyon 6.9 mi High Palisades Reservoir 7.0 mi High Portola 7.1 mi High Upper Oso 7.1 mi High