Concrete Placement

Concrete block on east abutment, showing grouting and drainage tunnel and upstream fillet.

1937-04-23
2024-11-24

East Coulee Dam

East abutment, July 1937, showing low and high trestles, 24-ft. diameter penstock blackouts below elevation 1024 trestle.

2024-11-24
2024-11-24

East Coulee Dam

Blocks in east abutment between high and low trestles. Reinforcing is around penstock blackouts.

1937-04-23
2024-11-24

Construction Trestle Concrete Placement

Placing concrete under elevation 1024 trestle inside supporting tower.

2024-11-24
2024-11-24

Diversion Blocks

Filling diversion block 32, looking downstream, December 23, 1937.

1937-12-23
2024-11-24

Concrete Cooling

Cooling water supply pipe, upstream, near east abutment.

1937-11-30
2024-11-24

East End Blocks

Blocks between high and low trestles, looking west. Cooling pipes on floor of blocks.

1937-04-23
2024-11-24

Grout Agitator

Grout agitator in grout plant.

2024-11-24
2024-11-24

Grout Injection Pumps

Two duplex-injection pumps.

2024-11-24
2024-11-24

Grouting Materials

A grout-injection pump, cement mixer and grout agitator.

2024-11-24
2024-11-24

East Powerhouse Substructure

East end of dam, and high and low trestles. Reinforcing for penstock blackouts. East power house substructure in foreground.

1937-07-09
2024-11-24

East Powerhouse Substructure

Reinforcing around 24-ft. diameter octagonal penstock blockouts, units E1 and E2. Elevation 1024 trestle in upper in upper part.

1937-04-23
2024-11-24

East Powerhouse Substructure

Substructure for east power house. Eastmix above.

1937-08-25
2024-11-24

East Powerhouse Substructure

Turbine pits in east power house low trestle above. High trestle at extreme top.

1937-10-29
2024-11-24

Downstream Clean-Up Before Flooding

Downstream clean-up prior to flooding. East power house on left; spillway with spillway bucket between the two training walls. High trestle in upper left. Pipe in foreground is for cement transportation from silos on west side.

1937-11-15
2024-11-24

Concrete Placement in Spillway Bucket

Spillway bucket. Elevation of lip, 900; bottom of invert, 870. Radius 50 feet. East training wall in the distance.

1937-10-29
2024-11-24

Forms for East Training Wall

Forms around east training wall.

1937-09-02
2024-11-24

Concrete Placement in Spillway Bucket

Serids in invert of spillway bucket.

1937-09-21
2024-11-24

Western Powerhouse Turbine Pits

Turbine pits in west power house substructure. Elevation of 950 diversion blocks. 24-ft.-diameter main-unit penstock blackouts; and 12-ft.-diameter station-service unit blockouts in lower right corner.

1937-04-29
2024-11-24

Western Grand Coulee Foundation

West end of dam, January 5, 1937, with low and high trestles and low diversion blocks.

2024-11-24
2024-11-24

Winter at Grand Coulee

Winter scene. Blocks at west end of dam covered with snow and ice.

1937-01-28
2024-11-24

Western Powerhouse Turbine Pits

Turbine pits in west power house.

1937-05-01
2024-11-24

Block 13 Diversion Slot

Elevation 950 diversion slot in block 13. Octagonal 12-ft. diameter blockouts are for 6-ft. diameter station-service unit penstocks.

1937-05-01
2024-11-24

Diversion Slot

A 50-ft. wide diversion slot between high blocks in west power house area.

1937-05-01
2024-11-24

Twenty-Four foot diameter penstock frame. In the distance is a diversion slot that when...

24-ft. diameter octagonal penstock blockout in west power house. Low blocks are for river diversion.

1937-05-01
2024-11-24