Hecla-day Mine Aspen Tailings Saddle Dam

Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyFerry
Nearest CityRepublic
River/StreamTr-Granite Creek
Coordinates48.67594, -118.75883

Physical Characteristics

Dam TypeEarth
NID Height40 ft
Dam Length1,240 ft
Year Completed1987 (39 years old)

Storage & Hydraulics

NID Storage625 acre-ft
Max Storage625 acre-ft
Normal Storage365 acre-ft
Surface Area38 acres
Drainage Area0 sq mi
Max Discharge166 cfs

Ownership & Safety

PurposeTailings
OwnerHecla Mining Co
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection08/19/2024
Emergency Action PlanYes

Identifiers

NID IDWA00631
Federal IDWA00631
More InfoState Dam Safety Program

Nearby Dams

Hecla Groundwater Management Impoundment 0.1 mi Significant Hecla-day Mine Aspen Tailings Dam 0.2 mi Significant Longeway Dam 3.7 mi Low Kinross Old Reclaim Pond 6.6 mi Significant Kinross Gold Kettle River Tailings Dam 7.0 mi High