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North Fork Dam (Clackamas County, Oregon)

Coordinates: 45°14′36″N 122°16′47″W / 45.24333°N 122.27972°W / 45.24333; -122.27972
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North Fork Dam
North Fork Dam (Clackamas County, Oregon) is located in Oregon
North Fork Dam (Clackamas County, Oregon)
Location of North Fork Dam in Oregon
CountryUnited States
LocationClackamas, Oregon
Coordinates45°14′36″N 122°16′47″W / 45.24333°N 122.27972°W / 45.24333; -122.27972

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.

Construction

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It 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

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North 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

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  1. ^ a b c d "North Fork Dam and Powerhouse". The Oregon Encyclopedia. Retrieved 3 January 2016.
  2. ^ "North Fork Fish Ladder". The Oregon Encyclopedia. Retrieved 3 January 2016.
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