‘Downstream side of Blocks 7 and 8 of North Half of Spillway Dam and Piers 9 to 12. Inclusive of South Half of Dam’
24 October 1936
#ColumbiaRiver #BonnevillDam #dams #ArmyCorpsOfEngineers #infrastructure #PublicWorksAdministration #PWA #TheNewDeal #blackandwhitephotography
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