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  • Title
  • TGM Subject
  • Description
  • Collection
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  • Mason City Aerial Photograph
  • Grand Coulee (Wash.)
  • Aerial view of Mason City and Grand Coulee
  • Frank A. Banks Collection
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  • Sharpening Drill Bits: Tempering Forge
  • Forge shops--Washington (State)--Grand Coulee Dam
  • This forge allowed drill bits used to facilitate grouting cracks, fissures, and bedrock to be sharpened and tempered.
  • Frank A. Banks Collection
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  • Sharpening Drill Bits: Forge and Sharpener
  • Forge shops--Washington (State)--Grand Coulee Dam
  • This equipment was essential to maintaining drill bits to allow continuous exploratory and functional drilling in the foundation and bedrock of the Grand Coulee Dam.
  • Frank A. Banks Collection
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  • Crane Assembly
  • Civil engineering; Concrete; Construction; Construction employees; Conveying systems--Washington (State)--Grand Coulee Dam; Hoisting machinery
  • Cantilever and Whirley-type cranes assembled on the two concrete placing trestles used to construct and reinforce the Grand Coulee Dam superstructure.
  • Frank A. Banks Collection
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  • North End of Block Forty
  • Conveying systems--Washington (State)--Grand Coulee Dam; Cofferdams
  • Shown here is the north end of block 40 in foreground, the timber crib plug to the cofferdam cell cluster, center tower of aggregate suspension bridge tower in cell 5, cofferdam section "G." Bridge spans on both sides of tower, 1437 feet....
  • Frank A. Banks Collection
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  • Broken Spoil Conveyor
  • Accidents; Conveying systems--Washington (State)--Grand Coulee Dam; Cofferdams
  • Shown here is a broken segment of the spoil conveyor system due to a malfunction in one of its supporting trestles.
  • Frank A. Banks Collection
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  • Long View of Conveyor
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam; Excavation; Brett Gravel Pit
  • This image shows a view of the Cross river conveyor system on its way to Rattlesnake gorge to deposit spoil from Grand Coulee excavation activities and also to carry materials to the concrete production facilities on the Westside of the Columbia...
  • Frank A. Banks Collection
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  • Aggregate Stock Piles
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam; Excavation; Brett Gravel Pit
  • Conveyors transported materials from the screening and washing plant to stock piles for construction activities.
  • Frank A. Banks Collection
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  • Aggregate Stock Piles
  • Conveying systems--Washington (State)--Grand Coulee Dam; Excavation; Brett Gravel Pit
  • Shown here are the giant piles of raw materials, sorted and categorized, that would make up the materials used to produce the Grand Coulee Dam. Notice the extent of the excavation from Brett Gravel Pit.
  • Frank A. Banks Collection
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  • Aggregate Stock Piles
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam; Excavation; Brett Gravel Pit
  • Shown here is the finished products coming from the Aggregate processing facility. These stock piles served as the raw material for the mass amounts of concrete required for the construction of the Grand Coulee Dam.
  • Frank A. Banks Collection
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  • Cement Storage Facilities
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam; Excavation; Brett Gravel Pit
  • Seen here are the cement storage and blending tanks for use in constructing the Grand Coulee Dam. During 1936 the Mason-Walsh-Atkinson-Kier Co. produced a contemporary record amount of concrete, 1,846,481 cubic yards out of 3,415,465 tons of...
  • Frank A. Banks Collection
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  • Cement Mixing Plant
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam
  • Shown her is a bottom up view of the Westmix facility with particular attention paid to the placing trestle on the right hand side. This placing trestle had rails that would deliver the four yard concrete buckets to the Wiley Cranes stationed on...
  • Frank A. Banks Collection
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  • Cement Transportation Pipe
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam
  • Shown here is the transportation piping the Fuller-Kinyon pump used to move cement from the storage silos and boxcars to the concrete mixing plant at the Grand Coulee Dam.
  • Frank A. Banks Collection
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  • Cement Mixing Plant
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam
  • This cement mixing plant, located on the western side of the Columbia River at the Grand Coulee Dam site, mixed cement materials in preparation for loading them in 4 yard concrete buckets. These buckets were then shipped by rail and then loaded...
  • Frank A. Banks Collection
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  • Cement Storage Facilities
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam
  • Shown here is the Fuller-Kinyon pump unloading cement materials into the storage boxcars to await mixing and pouring for the concrete cells of the Grand Coulee Dam.
  • Frank A. Banks Collection
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  • Cement Unloading Pump
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam
  • This Fuller-Kinyon cement unloading pump allowed the transportation of large amounts of cement from the Brett aggregate processing facility to the storage boxcars.
  • Frank A. Banks Collection
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  • Cement Blending Silos
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam
  • Shown here are two cement blending silos at the cement storage yard.
  • Frank A. Banks Collection
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  • Batcher Control Room
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam
  • This image shows the batcher control room that controlled the portions, mixing, and release of the four-yard loads of concrete at the Eastmix mixing facility.
  • Frank A. Banks Collection
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  • Cement Mixing Equipment
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam
  • Image of the filling and discharge end of the Koehring four-yard Eastmix concrete mixers.
  • Frank A. Banks Collection
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  • Cement Mixing Equipment
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam
  • Exterior of the four Eastmix Koehring four-yard mixers.
  • Frank A. Banks Collection

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