Stemilt Main Dam

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyChelan
Nearest CityMalaga
River/StreamOrr Creek-Offstream
Coordinates47.31309, -120.30910

Physical Characteristics

Dam TypeEarth
NID Height65 ft
Dam Length1,000 ft
Year Completed1962 (64 years old)

Storage & Hydraulics

NID Storage670 acre-ft
Max Storage670 acre-ft
Normal Storage580 acre-ft
Surface Area23 acres
Drainage Area0 sq mi
Max Discharge20 cfs

Ownership & Safety

PurposeIrrigation
OwnerLower Stemilt Irrigation District
Owner TypePublic Utility
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection04/22/2025
Emergency Action PlanYes

Identifiers

NID IDWA00014
Federal IDWA00014
More InfoState Dam Safety Program

Nearby Dams

Stemilt Saddle Dam 0.2 mi High Shiflett Reservoir No. 2 0.4 mi High Shiflett Reservoir No. 1 0.5 mi High Clear Lake Dam 1.1 mi High Clear Lake Saddle Dam 1.2 mi High Lily Lake Dam 1.2 mi High Spring Hill Saddle Dam 1.2 mi High Spring Hill Dam 1.3 mi High 3 Amigos Reservoir 1.3 mi High Great Depression Dam 1.5 mi High