Henry J. Mills No. 2

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

CountyRiverside
Nearest CityMission Grove
River/StreamOffstream
Coordinates33.92120, -117.32360

Physical Characteristics

Dam TypeEarth
NID Height34 ft
Dam Height34 ft
Dam Length2,044 ft
Year Completed1996 (30 years old)

Storage & Hydraulics

NID Storage92 acre-ft
Max Storage92 acre-ft
Surface Area5 acres
Drainage Area0 sq mi

Ownership & Safety

PurposeWater Supply
OwnerMetropolitan Water District Of Southern California
Owner TypePublic Utility
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection12/09/2025
Emergency Action PlanYes

Identifiers

NID IDCA01349
Federal IDCA01349
More InfoState Dam Safety Program

Nearby Dams

Henry J. Mills Reservoir 0.1 mi High Hj Mills Reclamation 0.5 mi Significant Alessandro 2.5 mi High Sycamore 2.6 mi High Box Springs 2.6 mi High Prenda 2.8 mi High Mary Street 3.2 mi High Woodcrest 3.4 mi High Pigeon Pass 4.6 mi High Sunnymead Ranch 5.3 mi High