Loon Lake Auxiliary

Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateCalifornia
CountyEl Dorado
Nearest CityFolsom
River/StreamGerle Creek
Coordinates38.98820, -120.33210

Physical Characteristics

Dam TypeRockfill
NID Height102 ft
Dam Height90 ft
Dam Length910 ft
Year Completed1963 (63 years old)

Storage & Hydraulics

NID Storage69,309 acre-ft
Max Storage69,309 acre-ft
Normal Storage51,000 acre-ft
Surface Area1,450 acres
Drainage Area7 sq mi
Max Discharge15,300 cfs
Spillway TypeNone

Ownership & Safety

PurposeHydroelectric
OwnerSacramento Municipal Utility District
Owner TypePublic Utility
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection08/28/2023
Emergency Action PlanYes

Identifiers

NID IDCA00820
Federal IDCA00820S001
More InfoState Dam Safety Program

Nearby Dams

Gerle Creek 3.7 mi Low Robbs Peak 4.1 mi Low Buck Island Auxiliary 4.3 mi Low Rubicon Auxiliary 6.0 mi Low Hell Hole 6.4 mi High Union Valley 10.2 mi High Quail Lake Dam 10.7 mi High L. L. Anderson 11.3 mi High Ice House Main 11.5 mi High Junction 11.6 mi Significant