Electric Tower Construction

Workmen using a gin-pole to construct one of several towers which will carry a 230,000volt transmission line from the left powerhouse to the left switchyard.

1942-11-27
2024-11-22

Scroll Case Nears Completion

With five sections of the scroll case of a "Shasta" turbine in their final position, the three remaining sections, connected together, are moved into place by an overheard crane.

1942-07-11
2024-11-22

Rotor Installation in Unit B Generator

West Powerhouse: Building the rotor for the Shasta, Unit B, generator. The magnetic circuit for the field poles is built up of thin steel plates, forming a cylinder around the spider and shaft.

1942-09-18
2024-11-22

Roofing Operations of East Powerhouse

Various stages of roof-slab forming on the right powerhouse are shown in this view of the west bay in section R8, looking north.

1942-09-28
2024-11-22

Giant Gantry Crane

A 150-ton crane on the dam above the left powerhouse, used in assembling and installing coaster gates over the entrances to the penstocks.

1942-04-29
2024-11-22

L-1 Transformer

Giant transformer for main generating unit L-1 being moved into position on transformer deck at left powerhouse.

1941-11-26
2024-11-22

Excavation for West Highway and Construction Railroad

Excavation and removal of overburden in progress on the left tailrace slide area. Excavation has been completed down to the elevation at which the shovels are working.

1941-02-17
2024-11-22

Outlet Works Gate Installation

A ring seal gate casting is lowered into position during the installation of the 102-inch diameter outlet works at el. 1136 in the spillway section of the dam.

2024-11-22
2024-11-22

Drum Gate Installation

The east or right end of the spillway section of the dam prior to installation of drum gates Nos. 1, 2, and 3.

1940-10-15
2024-11-22

Main Unit Generator

Looking east into the main unit generator room of the left power house during the course of construction. On the left is shown the type of scaffolding erected by the contractor to provide access to the wall pours. On the platform in the foreground...

1939-08-26
2024-11-22

East Bank Construction Trestles

Closing east and west sections of high trestle, July 12, 1937.

1937-07-12
2024-11-22

Depositing Spoil onto Conveyor

Athey 10-yard buggies dumping on grizzly over a feeder to 60-inch east side conveyor.

1936-08-28
2024-11-22

Wall of Generator Pit

West wall of L-8 generator pit, through which workmen are cutting an opening for the penstock of a Shasta turbine. The wall was first drilled, then the center section will be blasted. Photo of workmen operating chippings guns.

1942-05-13
2024-11-22

Construction of Spillway Bridge Piers

Here is shown the reinforcing of the spillway bridge piers between the drum gates. The temperature differential caused by heating of the pier plates for de-icing created a special problem in design of these structures, and also necessitated much...

2024-11-22

Painting of Drum Gates

Painters, refinishing drum gate No. 4 with aluminum paint.

1942-03-30
2024-11-22

Turbine Scroll Case

Shasta turbine scroll case L-7, from elevation 951, looking east. Water will be supplied from penstock L-8, through a reducing elbow extending through the pit wall.

1942-07-08
2024-11-22

Attaching Rotor

Attaching pole pieces and field coils to the rim of a Shasta generator rotor.

1942-09-17
2024-11-22

Transformer Transportation

Core and coils for General Electric three-winding, 36,000 kv.-a. transformer being lifted from special 16-wheel tank car, in left powerhouse. The car body is gastight, and was filled with nitrogen while in transit.

1941-11-17
2024-11-22

East Bank Construction Trestles

East and west sections of elevation 1024 trestle about to be connected.

1937-07-12
2024-11-22

Side View Close Up of "Ice Dam"

Ice-dam gorge. Excavation down to elevation 761. Frozen dam to the left.

1936-12-03
2024-11-22

Deep Point of "Ice Dam" Gorge

Deep point in "Ice Dam" gorge in foreground - dam is between barge in pond and stairs leading down from ice plant. Across river is west cofferdam with the two ends partially removed.

1936-08-29
2024-11-22

Reinforcing Drumgate "Lip"

On the left is shown the heavy mat of reinforcing steel embedded in the concrete to strengthen the overhanging lip to which the drum gate hinge anchors were fastened." The pipe shown in the center of the picture is part of the 60 inch drain for...

2024-11-22

Generator Pit from Above

Looking down on work in pit No. 8, from the top of the wall at El. 991, between pits 8 and 7. Reinforcing steel for the throat of the draft tube has been placed.

1942-06-26
2024-11-22

Workmen Tighten Nuts

Workmen tightening nuts on the thrust bearing runner of unit L-1. An insulator bushing of a General Electric 36,000-kv.-a. transformer at the left.

1942-02-11
2024-11-22

First Girder Set in Place in the East Powerhouse

The first roof girder being placed in the east powerhouse.

1942-08-15
2024-11-22