Post Falls South Channel Dam (Coeur d'Alene Lake)

Field Descriptions

Dam Name: Post Falls South Channel
NID ID: ID83002
Longitude: -116.95417
Latitude: 47.70417
Map Section: T50N,R5W,S3,BM
County: KOOTENAI
River: SPOKANE RIVER
State: ID
Nearest City: GREENACRES SUBDIVISION
Distance: 11.00 miles
Owner Name: AVISTA CORPORATION
Owner Type: Private
Private Dam? No
Dam Type: Gravity
Core: Homogeneous Dam (Position)
Concrete (Type)
Known (Certainty)
Foundation: RK
Purposes: Hydroelectric
Year Completed: 1906
Year Modified/Mod Type: 1992S
Dam Length: 127 feet
Dam Height: 25 feet
Structural Height: 25 feet
Hydraulic Height: 18 feet
Maximum Discharge: 3600 cu ft/sec
Normal Storage: 225000 acre-feet
Surface Area: 48000 acres
Drainage Area: 3784 square miles
Hazard Potential: High
Emergency Action Plan? Yes
Inspection Date: 2012-05-24
Inspection Frequency: 1
State Regulated Dam? Yes
State Regulating Agency: IDAHO DEPT OF WATER RESOURCES
Spillway Type: Controlled
Spillway Width: 127 feet
Outlet Gates: L6;
Federal Regulatory Agency:
Federal Inspection Agency:
Source Agency:



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