Completed Downstream Cofferdam

Here the river has been blocked off by the downstream arm of the cross river cofferdam, forcing it to flow thru the new channel on the west side of block 40. The upstream arm of the cofferdam is about to be closed, after which the enclosed area will be pumped dry and excavated. Note the frozen earth...

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Bibliographic Details
Main Author:	Koester, Clifford R.; photographer unknown
Format:	Still Image
Language:	English
Published:	Manuscripts, Archives, and Special Collections, Washington State University Libraries: https://libraries.wsu.edu/masc/ 1930
Subjects:	Cofferdams > Construction > Washington (State) > Grand Coulee Dam Cofferdams > Designs > Washington (State) > Grand Coulee Dam Dump trucks > Washington (State) > Grand Coulee Dam Cranes derricks etc. > Washington (State) > Grand Coulee Dam Excavation > Washington (State) > Grand Coulee Dam Grand Coulee Dam (Wash.) > Excavation Spoil banks > Washington (State) > Grand Coulee Dam Power shovels > Washington (State) > Grand Coulee Dam Piling (Civil engineering) > Washington (State) > Grand Coulee Dam Whirley crane > Washington (State) > Grand Coulee Dam Lattice boom cranes (Excavating machinery) > Grand Coulee Dam Gantry cranes > Washington (State) > Grand Coulee Dam Trestle construction > Washington (State) > Grand Coulee Dam Eastmix concrete plant > Washington (State) > Grand Coulee Dam Cofferdams Excavation Construction equipment Diversion weirs Concrete Ice dams Ice Sheet
Online Access:	http://content.libraries.wsu.edu/cdm/ref/collection/crkoester/id/701

id	ftwashstatelib:oai:content.libraries.wsu.edu:crkoester/701
record_format	openpolar
spelling	ftwashstatelib:oai:content.libraries.wsu.edu:crkoester/701 2023-05-15T16:41:11+02:00 Completed Downstream Cofferdam Koester, Clifford R.; photographer unknown United States--Washington (State)--Grant County--Grand Coulee Dam site 1930/1945 Original photographic prints were scanned at 24 bit 3000 pixels by the long side for master TIFF files on an Plustek OpticBook 3600 Plus. Also, 24 bit 150 PPI JPEGs were created with the OpticBook 3600 Plus and added to the CONTENTdm database at the WSU Libraries http://content.libraries.wsu.edu/cdm/ref/collection/crkoester/id/701 English eng Manuscripts, Archives, and Special Collections, Washington State University Libraries: https://libraries.wsu.edu/masc/ ark:/80444/xv46768 Part of Western Waters Digital Library, http://westernwaters.org/ cg709b1v1p83.jpg http://content.libraries.wsu.edu/cdm/ref/collection/crkoester/id/701 http://rightsstatements.org/vocab/NKC/1.0/ No known copyright. Item is in public domain as it was created by United States government. PDM Is found in A History of the Columbia Basin Project (vol. 1, pg. 83), Cage 709, Clifford R. Koester Papers https://libraries.wsu.edu/masc/finders/cg709.htm at Washington State University Libraries' Manuscripts, Archives, and Special Collections (MASC) https://libraries.wsu.edu/masc Cofferdams--Construction--Washington (State)--Grand Coulee Dam Cofferdams--Designs--Washington (State)--Grand Coulee Dam Dump trucks--Washington (State)--Grand Coulee Dam Cranes derricks etc.--Washington (State)--Grand Coulee Dam Excavation--Washington (State)--Grand Coulee Dam Grand Coulee Dam (Wash.)--Excavation Spoil banks--Washington (State)--Grand Coulee Dam Power shovels--Washington (State)--Grand Coulee Dam Piling (Civil engineering)--Washington (State)--Grand Coulee Dam Whirley crane--Washington (State)--Grand Coulee Dam Lattice boom cranes (Excavating machinery)--Grand Coulee Dam Gantry cranes--Washington (State)--Grand Coulee Dam Trestle construction--Washington (State)--Grand Coulee Dam Eastmix concrete plant--Washington (State)--Grand Coulee Dam Cofferdams Excavation Construction equipment Diversion weirs Concrete Ice dams Image Photographs 1930 ftwashstatelib 2021-07-26T19:53:40Z Here the river has been blocked off by the downstream arm of the cross river cofferdam, forcing it to flow thru the new channel on the west side of block 40. The upstream arm of the cofferdam is about to be closed, after which the enclosed area will be pumped dry and excavated. Note the frozen earth dam across the narrow gorge in the foreground. It is believed that drainage from the second ice sheet, flowing in the opposite direction to the present channel, exposed the east side bedrock possibly a million years longer than the west side, causing it to be much more weathered and deeply eroded. All granite proved remarkably sound and strong; many other dams having to accept 15,000 pounds per square inch as good. Still Image Ice Sheet Washington State University: WSU Libraries Digital Collections
institution	Open Polar
collection	Washington State University: WSU Libraries Digital Collections
op_collection_id	ftwashstatelib
language	English
topic	Cofferdams--Construction--Washington (State)--Grand Coulee Dam Cofferdams--Designs--Washington (State)--Grand Coulee Dam Dump trucks--Washington (State)--Grand Coulee Dam Cranes derricks etc.--Washington (State)--Grand Coulee Dam Excavation--Washington (State)--Grand Coulee Dam Grand Coulee Dam (Wash.)--Excavation Spoil banks--Washington (State)--Grand Coulee Dam Power shovels--Washington (State)--Grand Coulee Dam Piling (Civil engineering)--Washington (State)--Grand Coulee Dam Whirley crane--Washington (State)--Grand Coulee Dam Lattice boom cranes (Excavating machinery)--Grand Coulee Dam Gantry cranes--Washington (State)--Grand Coulee Dam Trestle construction--Washington (State)--Grand Coulee Dam Eastmix concrete plant--Washington (State)--Grand Coulee Dam Cofferdams Excavation Construction equipment Diversion weirs Concrete Ice dams
spellingShingle	Cofferdams--Construction--Washington (State)--Grand Coulee Dam Cofferdams--Designs--Washington (State)--Grand Coulee Dam Dump trucks--Washington (State)--Grand Coulee Dam Cranes derricks etc.--Washington (State)--Grand Coulee Dam Excavation--Washington (State)--Grand Coulee Dam Grand Coulee Dam (Wash.)--Excavation Spoil banks--Washington (State)--Grand Coulee Dam Power shovels--Washington (State)--Grand Coulee Dam Piling (Civil engineering)--Washington (State)--Grand Coulee Dam Whirley crane--Washington (State)--Grand Coulee Dam Lattice boom cranes (Excavating machinery)--Grand Coulee Dam Gantry cranes--Washington (State)--Grand Coulee Dam Trestle construction--Washington (State)--Grand Coulee Dam Eastmix concrete plant--Washington (State)--Grand Coulee Dam Cofferdams Excavation Construction equipment Diversion weirs Concrete Ice dams Koester, Clifford R.; photographer unknown Completed Downstream Cofferdam
topic_facet	Cofferdams--Construction--Washington (State)--Grand Coulee Dam Cofferdams--Designs--Washington (State)--Grand Coulee Dam Dump trucks--Washington (State)--Grand Coulee Dam Cranes derricks etc.--Washington (State)--Grand Coulee Dam Excavation--Washington (State)--Grand Coulee Dam Grand Coulee Dam (Wash.)--Excavation Spoil banks--Washington (State)--Grand Coulee Dam Power shovels--Washington (State)--Grand Coulee Dam Piling (Civil engineering)--Washington (State)--Grand Coulee Dam Whirley crane--Washington (State)--Grand Coulee Dam Lattice boom cranes (Excavating machinery)--Grand Coulee Dam Gantry cranes--Washington (State)--Grand Coulee Dam Trestle construction--Washington (State)--Grand Coulee Dam Eastmix concrete plant--Washington (State)--Grand Coulee Dam Cofferdams Excavation Construction equipment Diversion weirs Concrete Ice dams
description	Here the river has been blocked off by the downstream arm of the cross river cofferdam, forcing it to flow thru the new channel on the west side of block 40. The upstream arm of the cofferdam is about to be closed, after which the enclosed area will be pumped dry and excavated. Note the frozen earth dam across the narrow gorge in the foreground. It is believed that drainage from the second ice sheet, flowing in the opposite direction to the present channel, exposed the east side bedrock possibly a million years longer than the west side, causing it to be much more weathered and deeply eroded. All granite proved remarkably sound and strong; many other dams having to accept 15,000 pounds per square inch as good.
format	Still Image
author	Koester, Clifford R.; photographer unknown
author_facet	Koester, Clifford R.; photographer unknown
author_sort	Koester, Clifford R.; photographer unknown
title	Completed Downstream Cofferdam
title_short	Completed Downstream Cofferdam
title_full	Completed Downstream Cofferdam
title_fullStr	Completed Downstream Cofferdam
title_full_unstemmed	Completed Downstream Cofferdam
title_sort	completed downstream cofferdam
publisher	Manuscripts, Archives, and Special Collections, Washington State University Libraries: https://libraries.wsu.edu/masc/
publishDate	1930
url	http://content.libraries.wsu.edu/cdm/ref/collection/crkoester/id/701
op_coverage	United States--Washington (State)--Grant County--Grand Coulee Dam site
genre	Ice Sheet
genre_facet	Ice Sheet
op_source	Is found in A History of the Columbia Basin Project (vol. 1, pg. 83), Cage 709, Clifford R. Koester Papers https://libraries.wsu.edu/masc/finders/cg709.htm at Washington State University Libraries' Manuscripts, Archives, and Special Collections (MASC) https://libraries.wsu.edu/masc
op_relation	ark:/80444/xv46768 Part of Western Waters Digital Library, http://westernwaters.org/ cg709b1v1p83.jpg http://content.libraries.wsu.edu/cdm/ref/collection/crkoester/id/701
op_rights	http://rightsstatements.org/vocab/NKC/1.0/ No known copyright. Item is in public domain as it was created by United States government.
op_rightsnorm	PDM
_version_	1766031626544873472

Completed Downstream Cofferdam

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