San Antonio Dam

High HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateCalifornia
CountySan Bernardino
Nearest CityCLAREMONT
River/StreamSAN ANTONIO CREEK
Coordinates34.15730, -117.67707

Physical Characteristics

Dam TypeEarth
NID Height160 ft
Dam Height160 ft
Dam Length3,850 ft
Year Completed1956 (70 years old)

Storage & Hydraulics

NID Storage11,880 acre-ft
Max Storage11,880 acre-ft
Surface Area1 acres
Drainage Area27 sq mi
Max Discharge53,700 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerUSACE - Los Angeles District
Owner TypeFederal
Hazard ClassificationHigh
Condition AssessmentNot Available
Last Inspection03/15/2021
Emergency Action PlanYes

Identifiers

NID IDCA10023
Federal IDCA10023
More InfoState Dam Safety Program

Nearby Dams

Cucamonga Creek Debris Basin 2.2 mi High Thompson Creek 2.4 mi High Demens Creek Debris Basin 4.2 mi High Live Oak 4.3 mi High Upland Basin 4.4 mi High Live Oak Reservoir 4.6 mi High Alta Loma Basin #1 5.0 mi High Alta Loma Basin #2 5.4 mi High San Dimas 5.5 mi High Deer Canyon Debris Basin 6.1 mi High