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  • Title
  • TGM Subject
  • Description
  • Collection
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  • Aerial View Southeast of Block 40
  • Construction; Excavation; Civil engineering; Erosion protection works; Concrete; Construction employees
  • Large scale view of construction activities during the summer of 1936 with the construction of concrete placing trestles and other routine features clearly visible from the high vantage point.
  • Frank A. Banks Collection
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  • Bedrock Preparation
  • Dam construction; Excavation; Civil engineering; Erosion protection works; Concrete; Civil engineering; Erosion protection works
  • Photograph shows a timber plug used to stem the flow the Columbia River for preparation of bedrock. The last downstream crib was placed on December 9, 1936 and the final closure of the main channel with the timber plug ended on December 15, 1936.
  • Frank A. Banks Collection
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  • Block 39 Excavation
  • Dam construction; Excavation; Civil engineering; Erosion protection works; Concrete; Construction employees
  • Photograph demonstrates concentration of labor power required for excavation activities where men were the mass expenditure in lieu of machinery that was less efficient in the cramped excavation of the deeper crevices in the river bed.
  • Frank A. Banks Collection
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  • Cement Block Pour Preparations
  • Civil engineering; Concrete; Construction; Construction employees
  • This scene shows typical operations for preparing the blocks for another pour of concrete from the four-yard buckets lifted by cranes from the placing trestle and brought to the cells to unload their cargo. Notice another concrete innovation that...
  • Frank A. Banks Collection
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  • Concrete Block Construction
  • Civil engineering; Concrete; Construction employees
  • Shown here is the west end of the dam as viewed from the westmix concrete mixing plant. Notice the beginnings of the 18 foot penstock tubes that, when completed, will control the flow of water into the west side power house.
  • Frank A. Banks Collection
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  • Constructing Coffer Dam with Steam Hammer
  • Pilings (Civil engineering); Dam construction; Pile drivers; Hoisting machinery
  • Photograph of a worker suspended in the air placing a 6 and 1/2 foot-ton steam hammer in place to drive pylons in construction of Grand Coulee cofferdam.
  • Frank A. Banks Collection
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  • Constructing Dam up to West Cofferdam
  • Civil engineering; Concrete; Construction employees
  • Shown here are construction activities next to the cofferdam and the final stages of construction behind the protective enclosure of the west cofferdam.
  • Frank A. Banks 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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  • 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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  • Dam Construction Complex
  • Civil engineering; Concrete; Construction employees
  • Overall view of the western bank excavation and construction activities. Notice the integration of the steel upper and lower placement trestles as reinforcement for the structure of the dam. The efficiency of operations was primarily responsible...
  • Frank A. Banks Collection
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  • Diversion Channel Entrance
  • Diversion weirs; Civil engineering; Concrete
  • Here is a view of the diversion channel looking towards the West Bank of the Columbia River.
  • Frank A. Banks Collection
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  • Diversion Channel Excavation
  • Construction; Excavation; Civil engineering; Erosion protection works; Concrete; Construction employees
  • Aerial Image of excavation activities to eventually divert the Columbia River behind the west side cofferdam.
  • Frank A. Banks Collection
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  • Diversion Channel From Upstream
  • Diversion weirs; Civil engineering; Concrete
  • Seen here is a winter view of the Diversion channels fashioned in the concrete of the West Bank foundation of the Grand Coulee Dam.
  • 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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  • Diversion Slot Entrance
  • Diversion weirs; Civil engineering; Concrete
  • Upstream entrance to diversion channel in the west bank foundation of the Grand Coulee Dam.
  • Frank A. Banks Collection
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  • Drainage Gallery
  • Civil engineering; Concrete; Construction employees
  • Shown her is the drainage and grouting gallery underneath the high placing trestle. In addition to heating and cooling the galleries provided access to grouting ports that workers used to pressure grout the individual cells of the dam together to...
  • Frank A. Banks Collection
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  • Excavation Behind Cofferdam
  • Dam construction; Excavation; Civil engineering; Erosion protection works; Concrete; Civil engineering; Erosion protection works
  • Photograph shows heavy construction and excavation activities occurring behind the protective wall of the Westside cofferdam. Shown here is the construction of the foundation of the Grand Coulee Dam.
  • Frank A. Banks Collection
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  • Excavation Behind Cofferdam
  • Hoisting machinery; Dam construction; Excavation; Civil engineering; Erosion protection works; Concrete; Civil engineering
  • Photograph shows the steel cells of cluster "G" and "D" separated by the timber-crib plug. Excavation activities in progress on the river bedrock and the Westside bank area. Excavation of the west cofferdam area amounted to 10,000,000 cubic yards...
  • Frank A. Banks Collection
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  • Foundation Grout Sections
  • Concrete; Grouting; Engineering
  • This schematic shows the elevation, depth, and extent of planned grouting operations at the Grand Coulee Dam construction site.
  • Frank A. Banks Collection
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  • Foundation Grouting
  • Concrete; Hoisting machinery; Civil engineering; Excavation
  • Close up image of workers sealing the crevices and fissures below the foundation of block 39 at the Grand Coulee Dam. All fissures were pressure grouted to fill in seams that would otherwise undermine the structure of the dam.
  • Frank A. Banks Collection

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