page 32

First stage of development—Authorized projects—Columbia River Basin Irrigation Active Installed Agency and project or unit storage power capacity capacity New land Supplemental water DEPARTMENT OF THE INTERIOR Bureau of...

Timber Crib

Building cribs for upstream cross-river cofferdam. On left is arch form for steel pile facing.

1936-08-01
2024-11-22

Incoming End of Material Conveyors

Incoming end of one of the raw material 42-inch conveyors on top floor of screening and washing plant at Brett gravel pit.

1935-09-01
2024-11-22

Federal Guard Pistol Practice

The Federal Guard at pistol practice. Left to right: guard officers G. H. Parlet, Franklin Langstraff, R. J. McGill, Sgt. E. E. Henningsen, J. M. Voshell, Sgt. H. B. Chittick, Sgt. R. C. Holcomb, Lt. C. W. Fawcett, Lt. J. E. Vandiver, and Capt. M....

1942-08-25
2024-11-22

Dewatering Frozen Columbia River

Dam and diversion works viewed from the upstream side. Upstream cross-river cofferdam appears on the right, and the entrance to the diversion channel on the left. The rough surface of ice is caused by the piling up of floe-ice. The two barges,...

1937-01-28
2024-11-22

Refinishing Concrete Outlet Tunnels

Interior of one of the 8-1/2 ft. outlet tunnels at elevation 934. Refinishing of concrete surface in progress.

2024-11-22
2024-11-22

Emptying Blaw-Knox Concrete Buckets

After the concrete was dumped from the buckets it was vibrated into a compact mass by means of electrically driven vibrators, which caused the concrete to spread without separation of the components, and eliminated the entrapped air. The...

2024-11-22

First-aid Training

Fir-aid instructors' class. Instructor demonstrating with rubber tubing the arterial pressure points for shutting off the blood stream at various parts of the body.

1942-05-08
2024-11-22

Building Elevation 1081 Construction Trestle

The construction trestle, with deck at el. 1180, approaches the spillway section of the dam. The Bethlehem Steel Co. under subcontract from Consolidated Builders, furnished the structural steel, and erected the trestle.

1938-08-02
2024-11-22

Sump From Cofferdam Leak Behind Cell "G."

Steel piling of cell cluster under part of which was leak in cofferdam, March 17, 1937.

1937-05-28
2024-11-22

View of East Bank and Central Construction

View to southwest from east side after completion of elevation 1024 trestle. Low trestle partially completed. East training wall and lip of spillway bucket in foreground.

1937-07-19
2024-11-22

Four-Yard Bucket Railcar

Carload of 4-yard concrete buckets on 950 elevation trestle.

1936-05-26
2024-11-22

Cement Transportation Pipe

Eleven-inch pipe line transporting cement from storage silos to mixing plant - 7,000 feet long, using 100 lbs. air pressure.

1936-06-01
2024-11-22

Conveyor System of Westside Cofferdam

Shuttle conveyor for filling cells in west cofferdam.

1935-03-18
2024-11-22

M.W.A.K. Columbian (Safety News letter): Volume Three Number Forty

Third Volume, Fortieth 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.

2024-11-22
2024-11-22

Building Elevation 1081 Construction Trestle

Erection in progress on the el. 1180 construction trestle. The tugboat and barge in the foreground have just been brought from the downstream side of the dam through the diversion channel.

2024-08-22
2024-11-22

Dismantling Conveyor System

Dismantling the central tower of the cross-river aggregate conveyor suspension bridge. The top section, controlled by cables, is being felled in one piece.

1938-03-29
2024-11-22

Inventory of the Clyde D. Gessel papers, 1939-2002

The Clyde D. Gessel papers (1939-2002) contain correspondence, reports, scrapbooks and maps. While the majority of the collection deals with his work as a member of the American Society of Civil Engineers (ASCE), there is a large portion that...

Delivering Concrete Buckets

A monorail hoist and concrete transfer chute used for pouring concrete inside a supporting tower of the elevation 1180 construction trestle.

1938-11-21
2024-11-22

Cleaning Drill Holes

Drill holes are blown out with compressed air, which accounts for the haze of dust surrounding these drillers.

1937-03-26
2024-11-22

M.W.A.K. Columbian (Safety News letter): Volume Three Number Thirty Eight

Third Volume, Thirty 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.

2024-11-22
2024-11-22

Generator Control Cubical

This is the generator control cubicle of the unit-control station for the No. 1, 75,000-kilowatt Shasta unit in pit L-7. It is situated in the governor gallery at elevation 951. The station will start the turbine, indicate the loads and...

1942-12-12
2024-11-22

Gate Leaf

A gate leaf for a Paradox service gate in the elevation 934 outlet works installation. This unit weighs 26-1/2 tons.

1938-10-21
2024-11-22

Steel Trestle Girder

One of the large steel plate girders used in the construction of the elevation 1180 trestle. This girder, consisting of 18" cover plates and 100" web plate, weighs 38 ton, and is about 100 feet long.

1938-07-29
2024-11-22

Frozen Diversion Channel

Diversion channel frozen over. Crane at right is breaking ice by dropping 6-ton block of concrete. Two cooling barges shown at block 31.

1937-01-28
2024-11-22