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You've searched: Frank A. Banks Collection

  • Title: Core
(3 results)



Display: 20

    • Calyx Core Drilling

    • Drilling & boring machinery
    • Seven 36-inch diameter "Calyx" holes were drilled in the dam foundation rock in 1937, two of which were in block 41, to serve as "sumps. There was a total of 19 holes put in by the Government for inspection of the rock, the other fourteen being...
    • Columbia Basin Project History; Text of Volume V (1937)

    • Dam construction; Dams; Power plants; Reservoirs; Spillways; Hydroelectric power; Housing; Construction; Plans; Government officials; Excavation; Surveying; Irrigation; Rivers; Pedestrian bridges; Sewerage; Hydraulic facilities; Civil service
    • Entire text portion of Columbia Basin History Project, vol. V documenting the construction of the Grand Coulee Dam.

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