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Aerial View Of Grand Coulee [01] (Coulee Dam irrigation pumping plant and discharge pipes) Item Info

Specifications 2329. Contractor: Morrison-Knudsen Company, Inc. and Peter Kiewit Sons' Company. This aerial view of the Grand Coulee Dam area shows the status of progress on the construction of Grand Coulee pumping plant and feeder canal. The pumping plant is being constructed behind the 600-foot long wing dam extending to the left from near the west abutment end of Grand Coulee Dam. The world's largest pumps will be installed in the pumping plant at a level of 120 feet below the roadway elevation. Each pump will lift water 280 feet from Roosevelt Lake and will discharge it through a steel pipe 12 feet in diameter and about 680 feet in length. Twelve tunnels, from 487 to 530 feet in length, will carry the pipes under the highway and up through the granite canyon wall. Upon emerging from the tunnels, as do the three pipes on the right, they will continue on concrete piers for about 260 feet and discharge into the headworks for the feeder canal. Excavation of the feeder canal has been completed to the cut-and -cover section and is ready for concrete lining.
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Title:
Aerial View Of Grand Coulee [01] (Coulee Dam irrigation pumping plant and discharge pipes)
Creator:
Pomeroy, F.B.
Date Created:
1949-09-21
Description:
Specifications 2329. Contractor: Morrison-Knudsen Company, Inc. and Peter Kiewit Sons' Company. This aerial view of the Grand Coulee Dam area shows the status of progress on the construction of Grand Coulee pumping plant and feeder canal. The pumping plant is being constructed behind the 600-foot long wing dam extending to the left from near the west abutment end of Grand Coulee Dam. The world's largest pumps will be installed in the pumping plant at a level of 120 feet below the roadway elevation. Each pump will lift water 280 feet from Roosevelt Lake and will discharge it through a steel pipe 12 feet in diameter and about 680 feet in length. Twelve tunnels, from 487 to 530 feet in length, will carry the pipes under the highway and up through the granite canyon wall. Upon emerging from the tunnels, as do the three pipes on the right, they will continue on concrete piers for about 260 feet and discharge into the headworks for the feeder canal. Excavation of the feeder canal has been completed to the cut-and -cover section and is ready for concrete lining.
Subjects:
dams in Washington (state) Coulee Dam irrigation pumping plant and discharge pipes
Location:
Washington (State) Grant County Grand Coulee Dam
Latitude:
47.944449
Longitude:
-119.007039
Publisher:
University of Idaho Library Digital Initiatives, http://www.lib.uidaho.edu/digital/
Source:
Army Corps of Engineers Dam Construction photographs, 1933-1965, PG 94, University of Idaho Library Special Collections and Archives
Finding Aid:
https://archiveswest.orbiscascade.org/ark:80444/xv165618
Source Identifier:
94-3-20315
Type:
Image;StillImage
Format:
image/jpeg

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Source
Preferred Citation:
"Aerial View Of Grand Coulee [01] (Coulee Dam irrigation pumping plant and discharge pipes)", Columbia River Basin Project: Dam Construction in the Pacific Northwest, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/crbp/items/crbp1162.html
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Rights:
In copyright, educational use permitted. Educational use includes non-commercial reproduction of text and images in materials for teaching and research purposes. For other contexts beyond fair use, including digital reproduction, please contact the University of Idaho Library Special Collections and Archives Department at [libspec@uidaho.edu](mailto:libspec@uidaho.edu). The University of Idaho Library is not liable for any violations of the law by users.
Standardized Rights:
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