Sand and gravel plant. The building to the right is the crusher plant from which the conveyor runs to the balancing pile over the two tunnels carrying conveyors to the top floor of the screen house where it is washed, screened and classified and then delivered to stock piles. Below the crusher plant is a 100,000 gallon water supply surge tank and below that are the two 3.6 million gallon clarifier tanks; between the clarifier units is the 130,000 gallon equalizer tank, to the left of which is the sludge pumping plant. The straight line running to the river is the 16-inch water supply pipe. The

• Contributor: Tango Images / Alamy Stock Photo
• Image ID: TYJJDT
• File size: 71.5 MB (3.1 MB Compressed download)
• Releases: Model - no | Property - no
• Dimensions: 5657 x 4418 px | 47.9 x 37.4 cm | 18.9 x 14.7 inches | 300dpi

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Sand and gravel plant. The building to the right is the crusher plant from which the conveyor runs to the balancing pile over the two tunnels carrying conveyors to the top floor of the screen house where it is washed, screened and classified and then delivered to stock piles. Below the crusher plant is a 100, 000 gallon water supply surge tank and below that are the two 3.6 million gallon clarifier tanks; between the clarifier units is the 130, 000 gallon equalizer tank, to the left of which is the sludge pumping plant. The straight line running to the river is the 16-inch water supply pipe. The airport can be seen in the distance.; Scope and content: Photograph from Volume Two of a series of photo albums documenting the construction of the Grand Coulee Dam and related work on the Columbia Basin Project.