Marshburn Retarding Basin

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

CountyOrange
Nearest CityIrvine
River/StreamTr Marshburn Chan
Coordinates33.69410, -117.72990

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Height27 ft
Dam Length2,456 ft
Year Completed1998 (28 years old)

Storage & Hydraulics

NID Storage424 acre-ft
Max Storage424 acre-ft
Surface Area26 acres
Drainage Area5 sq mi

Ownership & Safety

PurposeDebris Control
OwnerCounty of Orange
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection09/17/2025
Emergency Action PlanYes

Identifiers

NID IDCA01426
Federal IDCA01426
More InfoState Dam Safety Program

Nearby Dams

Syphon Canyon 1.1 mi High Bee Canyon Retention Basin 1.2 mi Low Trabuco Retarding Basin 1.5 mi High Round Canyon Retarding Basin 1.8 mi Low Agua Chinon 2.0 mi High East Hicks Canyon Retarding Basin 2.1 mi Low Rattlesnake Canyon 2.5 mi High Hicks Canyon Retention Basin 3.0 mi Low Orchard Estates Retarding Basin 3.2 mi High Eastfoot Retarding Basin 4.2 mi High