Cement Blending Silos

The two blending silos at cement storage yard.

1936-06-01
2024-11-25

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
2024-11-25

Cement Mixing Plant

Westmix concrete plant.

1936-06-01
2024-11-25

Cement Mixing Plant

Concrete mixing plant on west side. Placing trestle at right.

1936-06-01
2024-11-25

Cement Testing Lab

Testing laboratory in Westmix.

1936-10-01
2024-11-25

Cement Mixing Plant

Eastmix under construction.

1936-09-01
2024-11-25

Cement Mixing Equipment

Filling and discharge ends of the four concrete mixers in Eastmix.

1936-06-01
2024-11-25

Cement Mixing Equipment

Koehring four-yard mixers in Eastmix.

1936-06-01
2024-11-25

Cement Mixing Equipment

Batcher control equipment in Eastmix. Graphic record instrument on the right.

1936-06-01
2024-11-25

Batcher Control Room

Batcher control room in Eastmix.

1936-06-01
2024-11-25

Batcher Control Room

Batchers scales in east concrete mixing plant.

1936-06-01
2024-11-25

North End of Block Forty

North end of block 40 in foreground, timber crib plug to cofferdam cell cluster, center tower of aggregate suspension bridge tower in cell 5, cofferdam section "G"; Bridge spans on both sides of tower, 1437 feet. Elevation, top of tower 1280,...

1936-01-01
2024-11-25

Cement Transportation Complex

Bedrock and concrete blocks in west area; low trestle, and conveyor bridge to Westmix on the right; high trestle on the left.

1936-01-30
2024-11-25

Winter Ice Conditions

Winter conditions at foot of concrete placing trestle support.

1936-02-01
2024-11-25

Concrete Block Construction

Blocks in dam near bedrock, looking west from block 30 - low placing trestle in upper right.

1936-03-03
2024-11-25

Section E of Cofferdam

Behind section "E" of west cofferdam, showing work on block 40 and wood plug to cells in section "G";

1936-03-03
2024-11-25

Two Placing Trestles

The two placing trestles and forms for concrete. Colby and Clyde-Wiley cranes handling the four-yard buckets. Upper right shows aggregate conveyor suspension bridge running to west mixer.

1936-03-24
2024-11-25

Four-Yard Bucket Railcar

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

1936-05-26
2024-11-25

West End Concrete Placement

Looking downstream on blocks in west end of dam.

1936-03-31
2024-11-25

Krane-Kars Setting Form

One of three Krane-Kars setting a form in dam. Capacity, 5,000 pounds with 12-ft. boom to 2,500 pounds at 18-ft. boom 55 horsepower gasoline engine.

1936-04-01
2024-11-25

Reinforced Draft Tubes

Downstream section in west powerhouse showing reinforcing in base under draft tubes.

1936-04-30
2024-11-25

Reinforced Longitudinal Walls

Typical forms in dam. Reinforcing steel in longitudinal gallery walls.

1936-05-01
2024-11-25

Cement Placement

Dumping a 4-yard concrete bucket in left training wall.

1936-05-01
2024-11-25

Cement Placement

Placing concrete in the west training wall.

1936-05-19
2024-11-25

Cement Placement

Vibrating concrete in east training wall, using Jackson 2-man machines operating at 4,800 r.p.m. 145 volts.

1936-05-19
2024-11-25