The North Fork Dam is on the Clackamas River, about five miles upriver from Estacada, Oregon.[1] It was built in 1958.[1] The North Fork Reservoir is behind it.
| North Fork Dam | |
|---|---|
  Location of North Fork Dam in Oregon | |
| Country | United States |
| Location | Clackamas, Oregon |
| Coordinates | 45°14′36″N 122°16′47″W / 45.24333°N 122.27972°W |
Construction
editIt is a concrete arched dam, 206 feet high and 676 feet long,[1] is thin-shell of variable thickness. It varies in thickness from 32 feet at the base to 8 feet wide at the top.[1]
The fish ladder
editNorth Fork's construction entailed the building of the 1.9-mile-long North Fork Fish Ladder, one of the longest in the world.[2] It also required a complex system to provide for downstream fish passage around the dam.
References
edit- ^ a b c d "North Fork Dam and Powerhouse". The Oregon Encyclopedia. Retrieved 3 January 2016.
- ^ "North Fork Fish Ladder". The Oregon Encyclopedia. Retrieved 3 January 2016.
External links
edit- North Fork Reservoir Additional Information - Oregon State Marine Board
- A map
- Helping Fish Find Their Way Up The Clackamas
- The elevation, latitude and longitude
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