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Portland General Electric Photograph Collection Oak Grove Fork Clackamas River (Or.) With digital objects
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Temporary construction camp across from Oak Grove Fork of Clackamas River
Temporary construction camp across from Oak Grove Fork of Clackamas River
Oak Grove project, water filling pond less than one hour after closing dam
Oak Grove project, water filling pond less than one hour after closing dam
Oak Grove project, view of penstock line from office of Hurley-Mason Company office
Oak Grove project, view of penstock line from office of Hurley-Mason Company office
Oak Grove project, view of dam
Oak Grove project, view of dam
Oak Grove project, upstream from lower dam site at intake
Oak Grove project, upstream from lower dam site at intake
Oak Grove project, upper dam site at intake
Oak Grove project, upper dam site at intake
Oak Grove project, slide viewed from camp #4 ½
Oak Grove project, slide viewed from camp #4 ½
Oak Grove project, looking east at forebay site above dam and camp #4
Oak Grove project, looking east at forebay site above dam and camp #4
Oak Grove project, diamond drill at lower damsite intake
Oak Grove project, diamond drill at lower damsite intake
Oak Grove project, coffer dam at dam site
Oak Grove project, coffer dam at dam site
Oak Grove project, closing of gates at dam
Oak Grove project, closing of gates at dam
Oak Grove project, bridge for well drilling
Oak Grove project, bridge for well drilling
Oak Grove Tunnel, party of officials at northern portal
Oak Grove Tunnel, party of officials at northern portal
Oak Grove Project, intake
Oak Grove Project, intake