Wind
Humidity
Mill Pond, located in Metaline Falls, Washington, is a gravity dam completed in 1922 for hydroelectric and recreational purposes.
Standing at 65 feet tall with a hydraulic height of 57 feet, the dam holds a storage capacity of 1430 acre-feet and covers a surface area of 65 acres. The dam, situated on Sullivan Creek and the Pend Oreille River, has a maximum discharge of 4000 cubic feet per second and features an uncontrolled spillway with a width of 84 feet.
Owned and operated by a public utility, Mill Pond is regulated by the Federal Energy Regulatory Commission (FERC) and falls under the jurisdiction of the Seattle District. With a hazard potential classified as high and a moderate risk assessment rating, the dam is subject to regular inspections by FERC to ensure its structural integrity. Despite its age, the condition assessment of Mill Pond is currently listed as "Not Available," highlighting the need for ongoing monitoring and maintenance to mitigate any potential risks associated with the dam.
For water resource and climate enthusiasts, Mill Pond serves as a fascinating example of early 20th-century engineering designed to harness the power of flowing water for renewable energy production. The dam not only provides electricity but also offers recreational opportunities for the local community. As climate change continues to impact water resources, understanding the role of dams like Mill Pond in managing water flow and storage becomes increasingly important for sustainable water management practices in the region.
Outlet Creek Near Metaline Falls
|
19cfs |
Pend Oreille River Below Box Canyon Near Ione
|
37500cfs |
Columbia River At International Boundary
|
114000cfs |
Priest R Outflow Nr Coolin
|
1890cfs |
Boundary Creek Nr Porthill Id
|
758cfs |
Kootenai River At Porthill Id
|
19400cfs |
Year Completed |
1922 |
Dam Length |
130 |
Dam Height |
55 |
River Or Stream |
Sullivan Creek, Pend Oreille R |
Primary Dam Type |
Gravity |
Surface Area |
65 |
Hydraulic Height |
57 |
Drainage Area |
125 |
Nid Storage |
1430 |
Structural Height |
65 |
Hazard Potential |
High |
Nid Height |
65 |
| Location | Reservations | Toilets |
|---|---|---|
Mill Pond Campground
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Mill Pond
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Sullivan Lake
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West Sullivan Campground
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West Sullivan
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East Sullivan Campground
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Ne1/4 Of Sec 13, T40N, R46E To Nw1/4 Of Sec 5, T40N, R46E
Segment 2 Flows For Almost 10 Miles From The Intersection With Trail 312 To Its Confluence With The Upper Priest River To Segment 2 Flows For Almost 10 Miles From The Intersection With Trail 312 To Its Confluence With The Upper Priest River
Segment 1 Is Classified As Wild And Flows From Its Source For Almost Five Miles To The Intersection With Trail 312 To Segment 1 Is Classified As Wild And Flows From Its Source For Almost To The Intersection With Trail 312
Upper Priest River
Long Canyon Pass, Sec. 30, T63N, R2W To Forest Boundary, Road #417, Sec. 25, T63N, R2W
Forest Boundary, Sec. 34, T59N, R2W To Harrison Lake, Sec. 31, T62N, R2W