Results
1 - 25 of 431 Items 1 2 3 4 5 6 7 8 9 10 > >>
1 - 25 of 431 Items 1 2 3 4 5 6 7 8 9 10 > >>
|
Here the river has been blocked off by the downstream arm of the crossriver 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...
2024-04-19
|
|
This is excavation of the block 40 pit as it appeared in December of 1935. After the material was all removed beneath the wooden trusses, the huge block of concrete was poured in the usual manner, and the shelf of dirt, left on this side of it to...
2024-04-19
|
|
After completion of the cross-river cofferdams the enclosed water will be pumped out, and construction of the east end of the dam continued out until it meets block 40 just upstream to the right of the conveyor suspension bridge tower. The...
2024-04-19
|
|
This is the start of the downstream arm of the crossriver cofferdam projecting from the east shore. A power barge is maneuvering two timber cribs into position preparatory to sinking. In the background is the first east side cofferdam,...
2024-04-19
|
|
Third Volume, Eighteenth 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.
2024-04-19
2024-04-19 |
|
Third Volume, Seventeenth 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.
2024-04-19
2024-04-19 |
|
Third Volume, Fifteenth 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.
2024-04-19
2024-04-19 |
|
This view taken in the spring of 1935 shows how the early excavation on the east side was conducted with power shovels and trucks; the material being dumped in the forebay area upstream from the dam. Later conveyor systems running to this spoil...
1905-04-18
2024-04-19 |
|
Third Volume, Thirteenth 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.
2024-04-19
2024-04-19 |
|
Third Volume, Twentieth 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.
2024-04-19
2024-04-19 |
|
Third Volume, Sixteenth 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.
2024-04-19
2024-04-19 |
|
Notice that sections of the cross-river cofferdams are left out to permit the river to flow in its usual channel while the anchor or key cribs are sunk in their proper positions. On Dec. 09, 1936 the last cribs were in position and within 30 hours...
1936-12-09
2024-04-19 |
|
Here at Grand Coulee Dam, construction methods and mechanisms were extended to new horizons. The conveyor system of handling muck began with the members of the MWAK Co. In 1931-32 the Silas Mason Co. used such a system in construction of the...
2024-04-19
|
|
Third Volume, Twenty Seventh 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.
2024-04-19
2024-04-19 |
|
Two months later driving of the piling along the west bank of the river for the cofferdam was proceeding rapidly. Note the excavation being done with buggies having a capacity of 30 cubic yards, and drawn buy 75 horsepower tractors, which dump...
2024-04-19
|
|
Third Volume, Forty Eighth 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.
2024-04-19
2024-04-19 |
|
Third Volume, Twelfth 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.
2024-04-19
2024-04-19 |
|
Third Volume, Eleventh 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.
2024-04-19
2024-04-19 |
|
Third Volume, Nineteenth 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.
2024-04-19
2024-04-19 |
|
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.
2024-04-19
2024-04-19 |
|
Third Volume, Fourteenth 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.
2024-04-19
2024-04-19 |
|
Third Volume, Twenty Second 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.
2024-04-19
2024-04-19 |
|
Third Volume, Tenth 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.
2024-04-19
2024-04-19 |
|
Athey 10-yard buggy and Caterpillar bulldozer feeding a tributary conveyor feeder.
1935-03-21
2024-04-19 |
|
Excavation activities, including conveyors, in south-east section of area enclosed by the west cofferdam.
1935-03-20
2024-04-19 |
