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  • TGM Subject
  • Description
  • Collection
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  • Construction Trestle and Conveyor System
  • Spillways--Washington--Grand Coulee Dam; Civil engineering; Trestles; Conveying systems--Washington (State)--Grand Coulee Dam
  • View of construction progress as of the first day in 1938.
  • Frank A. Banks Collection
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  • Downstream View of Dam Construction
  • Conveying systems--Washington (State)--Grand Coulee Dam; Dam construction; Trestles
  • Downstream view of Dam construction activities on the eastern and central portions of the Columbia River.
  • Frank A. Banks Collection
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  • Diversion Channels
  • Conveying systems--Washington (State)--Grand Coulee Dam; Diversion weirs; Diversion weirs; Civil engineering; Concrete
  • Diversion Channels of completed Grand Coulee Dam foundation on the west bank of the Columbia River.
  • Frank A. Banks Collection
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  • M.W.A.K. Columbian (Safety News letter); Volume Three Number Twenty Five
  • Bulldozers; Tourism; Rivers; Conveying systems--Washington (State)--Grand Coulee Dam; Dam construction; Excavation; Drilling & boring machinery; Grouting; Concrete; Rivers; Conveyors; Gravel
  • Third Volume, Twenty Fifth issue, of the Mason-Walsh-Atkinson-Kier CO. builders of Coulee Dam Safety Newsletter. Created by the Safety Department and issued to the residents of Mason City and contract workers at Grand Coulee Dam.
  • Frank A. Banks Collection
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  • Suspension Bride Tower
  • Conveying systems--Washington (State)--Grand Coulee Dam
  • Central Suspension and Conveyor Tower whose foundation rests in the Columbia at Cofferdam "G."
  • 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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  • Depositing Spoil onto Conveyor
  • Conveying systems--Washington (State)--Grand Coulee Dam
  • Athey 10-yard buggy depositing aggregate collected from excavation by dumping it onto the feeding belt that began underground. The iron grill structure would prevent large pieces of soil and rock from jamming the conveyor system and would allow...
  • Frank A. Banks Collection
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  • Excavation Spoil Conveyor
  • Conveying systems--Washington (State)--Grand Coulee Dam; Rattlesnake Canyon
  • This close-up of the conveyor support system used to transport spoil across the river demonstrates the weakness of the timber supports that led the collapse of the conveyor system around February.
  • Frank A. Banks Collection
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  • Excavation Behind East Side of Wakefield Cofferdam
  • Conveying systems--Washington (State)--Grand Coulee Dam; Excavation; Cofferdams; Rattlesnake Canyon
  • This image shows the enormity of the excavation project and demonstrates the complexity of the excavation efforts at the Grand Coulee site.
  • Frank A. Banks Collection
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  • M.W.A.K. Columbian (Safety News letter): Volume Three Number Thirty Four
  • Reservoirs; Conveying systems--Washington (State)--Grand Coulee Dam; Grouting; Safety; Drawings; Jokes; Spillways; Concrete; Employees; Conveyors
  • Third Volume, Thirty Fourth issue, of the Mason-Walsh-Atkinson-Kier CO. builders of Coulee Dam Safety Newsletter. Created by the Safety Department and issued to the residents of Mason City and contract workers at Grand Coulee Dam.
  • Frank A. Banks Collection
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  • Aggregate Processing at Brett Gravel Pit
  • Conveying systems--Washington (State)--Grand Coulee Dam; Excavation; Brett Gravel Pit
  • Seen here is the entire gravel and material processing operation in practice.
  • Frank A. Banks Collection
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  • Aggregate Processing at Brett Gravel Pit
  • Conveying systems--Washington (State)--Grand Coulee Dam; Excavation; Brett Gravel Pit
  • Seen here is the sorting process meant to separate fine concrete materials from large boulders that the conveyor would then separate out as the shovel unloaded material onto the hopper.
  • Frank A. Banks Collection
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  • Aggregate Processing at Brett Gravel Pit
  • Conveying systems--Washington (State)--Grand Coulee Dam; Excavation; Brett Gravel Pit
  • Seen around the swinging "pendulum" boom conveyor are the mismatched boulders that could not be used in the aggregate processing plant and were thus sorted from soil piles.
  • Frank A. Banks Collection
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  • Aggregate Processing at Brett Gravel Pit
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam; Excavation; Brett Gravel Pit
  • Sorting process in action, image shows large rocks being separated from the smaller ones as they are loaded onto the conveyor.
  • Frank A. Banks Collection
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  • Rock Crusher
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam; Excavation; Brett Gravel Pit
  • This rock crusher ensures that rocks that make it through the conveyor sorter must be of uniform size for concrete manufacture.
  • 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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  • Aggregate Stock Piles
  • Concrete; Conveying systems--Washington (State)--Grand Coulee Dam; Excavation; Brett Gravel Pit
  • Picture of raw stock pile at Brett Pit with Grand Coulee in the background.
  • 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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  • Conveyor Suspension Bridge
  • Conveying systems--Washington (State)--Grand Coulee Dam; Excavation; Brett Gravel Pit
  • Seen here is the central tower of the conveyor system construction and excavation workers used to remove spoil from the Grand Coulee Dam site.
  • Frank A. Banks Collection

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