Downstream Ends of Outlet Tunnels

Downstream openings of outlet tunnels at elevation 934, with temporary bulkheads.

2024-11-23
2024-11-23

Frozen Arch Dam

General view, looking west from the east abutment. In the center foreground is the frozen arch dam. Excavation operations are in progress in the center section.

1937-02-18
2024-11-23

Plan of Gravel Pit and Conveyor System

Section Through Mixer Storage and Gravel Plant

2024-11-23

Jackhammer Crew

Here jackhammer crews are at work on the upper portals of the pumping plant tunnels. Excavation of rock in these discharge tunnels was bid by CBI at $10.00 per cubic yard. In the gravity plan for irrigating the Columbia Basin there was one place...

2024-11-23

Western water supply : hearing before the Committee on Energy and Natural Resources,...

CONTENTS STATEMENTS Page American Farm Bureau Federation 26963 Bell, Craig, Executive Director, Western States Water Council 26945 Domenici, Hon. Pete V., U.S. Senator From New Mexico 2691 Gaibler, Floyd, Deputy Undersecretary for Farm and...

2024-11-23
2005-02-16
2005-02-02

Colby Hammerhead Crane

Erection in progress on a large Colby hammerhead crane, as well as on the elevation 1180 construction trestle. When completed, this crane will measure 356 feet from tip to tip of the boom, and will weigh 268 tons.

1938-07-25
2024-11-23

Acceptable Eastside Bedrock

Acceptable bedrock in east abutment; high placing trestle; low trestle on extreme left.

1936-12-03
2024-11-23

Lower Portals of the Pumping Plant

These 22 foot diameter openings are the lower portals of the pumping plant tunnels which pass upward thru the cliff and daylight on the irregular hill side. The wedge shaped excavation to the right is the gantry crane recess before it was lined...

2024-11-23

Cantilever Cranes

This is a view looking west across the dam, showing the span of the great cantilever cranes. The last of the CBI cantilever cranes were dismantled on Sept. 12, 1940. Note the transverse beams inside the trestle towers on which monorail cranes...

2024-11-23

Timber Bulkhead Gates

Temporary bulkhead gates in set of three draft tubes - west power house.

1936-11-01
2024-11-23

Drainage Tunnels at Brett Gravel Pit

Concrete gate compartments and tunnels under balancing pile, Brett pit.

1935-07-17
2024-11-23

Pumping Plant Wing Dam

Here the pumping plant wing dam is almost completed. The level area in the foreground was once a high rock spur known as the "Dragon's Tooth". During the summer of 1945 a fault known to exist in the rock west of the pumping plant, and extending...

2024-11-23

Duplex Piston Displacement Grout Pumps

Compressed air supplies the force to the power cylinder of these duplex piston displacement grout pumps, thus giving the operator a sensitive control over the grouting operation, as well as affording great simplicity and flexibility. Grouting of a...

2024-11-23

Face Forms Abutment Areas

Downstream Face Forms - First Cantilever Section - Abutment Areas Figure I, Appendix II

1941-03-26
2024-11-23

The Columbia Basin Project 1890-1940

Presention on the history and origin of the Columbia Basin Project presented at the annual meeting of the Washington Irrigation Institute in Pasco, WA 05-06 December 1940

2024-11-23

Gantry Crane Siding Recess

Concrete placing in progress in the lining of the left abutment gantry crane siding recess.

1939-09-06
2024-11-23

page 18

the Washington side. By passing up these ladders, the fish are able to get to the 70-foot high pool behind the dam, and to the spawning grounds beyond. Returning baby salmon, known as fingerlings, are helped downstream by means of five bypass...

Night Work

Night view, looking northeast from upstream. High trestle over dam, and above it lighted aggregate suspension bridge conveyor running diagonally toward upper right corner. Lights across the river are in Mason City. Row of lights running to upper...

1936-10-01
2024-11-23

Barge Construction

Building one of nine barges for work on river diversion and dam construction.

1936-08-01
2024-11-23

Close Up of Governor Martin Pouring First Concrete

Governor Clarence D. Martin officially placing the first bucket of concrete in the dam.

1935-12-06
2024-11-23

Columbia River Cascading Over Grand Coulee Dam

Cascading Columbia River flood waters pour through the spillway diversion channels in waterfalls higher than Niagara.

1940-05-27
2024-11-23

Underwater Construction Diver

A diver dresses for underwater work.

1938-01-07
2024-11-23

Grouting Plant

Grouting plant for service to contraction joints, located under trestle in blocks 10 and 11.

1937-06-29
2024-11-23

Outlet Works Gate Body

A gate body casting for the elevation 934 outlet works is lowered into a blockout. The 102-inch ring seal gates will be installed.

2024-11-23
2024-11-23

Concrete Cooling

Cooling water supply pipe, upstream, near east abutment.

1937-11-30
2024-11-23