Oak Grove Project construction
Portland General Electric Company
Penstocks
cellulose nitrate film
Hydroelectric power plants--Design and construction
Rivers--Oregon
Photograph from Oak Grove project showing construction of unit plant and penstock. A brick building can be seen at the base of a dirt hill, with a small round building visible at the top. The Clackamas River runs along side the building and supporting wall.
Portland General Electric Company
1930-04-30
still image
Photograph; cellulose nitrate film; 8.5 x 10.5 in
https://digitalcollections.ohs.org/oak-grove-project-construction-2
OrgLot151_PGE16-962
Portland General Electric Photograph Collection; Org. Lot 151; Box 4; PGE 16-962
Oregon
Clackamas River (Or.)
Creative Commons - Attribution, Non-Commercial, ShareAlike (BY-NC- SA) http://creativecommons.org/licenses/by-nc-sa/4.0/