Construction of pipelines, syphons and tunnels--cleanup operations

South Coulee Dam--Cleanup placing operations on foundation, station 71+50 to 74+00. Narrow-drum roller is compacting Zone 1 and Zone 2 embankment upstream of cutoff wall. The dozer is preparing a ramp to facilitate cleanup work in inaccessible...

1947-07-23

Spillway and drum gate construction--overlooking Coulee Dam

View over looking Coulee Dam--a new transmission tower rises.

1941-08-20

Spillway and drum gate construction--west side downstream view of spillway

View of a portion of the spillway section showing formwork and false work for construction of spillway bridge spans. The construction trestle appears below the formwork. Eight of the 102-inch outlet tubes are shown in use for diversion of the...

1941-08-21

Construction of pipelines, syphons and tunnels--main canal headworks

South Coulee Dam--Main Canal Headworks--View over top of barrel section taken from east upstream and west. The ladder-like templates in the middle left of the view support reinforcing steel in the hinge part of the gate section of the two west...

1948-09-02

Construction of pipelines, syphons and tunnels--blending machine operations

Columbia Basin Project, Irrigation Division, 2nd Section East Low Canal, Specs. 2603. Steel Construction Co. of Oregon, sub-contractor for J.A. Terteling and Sons. Blending machine operations. H.E. Foss, photographer.

1950-09-14

Construction of pipelines, syphons and tunnels--fabrication of half hoops

Columbia Basin Project, Irrigation Division, Soap Lake Siphon, Specifications No. 2411, Winston Brothers and Utah Construction Co., Contractors. This photograph is a close-up of the fabrication of the half hoops. The straight bar is fed to the...

1949-09-09

Powerhouse construction--powerhouse bays

Bays 1-2 and 3 in East Powerhouse.

1942-02-23

Powerhouse construction--construction of the R-1 scroll case

Progress view of the stage of construction on the R-1 scroll case.

1948-08-17

Powerhouse construction--concrete placement in powerhouse

Men working inside powerhouse

1939-01-20

Spillway and drum gate construction--drum gate and arch

Man stands on the drum gate arch to give scale.

1941-12-03

Powerhouse construction--wheelpit R-8

Wheelpit R-8 looking downstream from 965 step. East Powerhouse base.

1940-09-25

Powerhouse construction--reinforcing steel in powerhouse

General view of reinforcing steel at East Powerhouse base

1940-10-07

Powerhouse construction--east powerhouse foundation [01]

View of the east powerhouse foundation with Grand Coulee in the background.

1941-01-25

Powerhouse construction--powerhouse and transformer deck

View of East Powerhouse and transformer deck with outlet tubes in background.

1942-04-28

Powerhouse construction--installing reinforcing steel

Feeder Canal. Specs. 2586. J.A. Terteling and Sons Inc., Contractors. This photograph was taken on the extreme west end of the Electric City Storage Yard. The sub-contractor, the Steel Construction Co., who have the contract with J.A. Terteling...

1949-08-16

Powerhouse construction--East Powerhouse foundation [02]

Progress photos of the East Powerhouse as of date.

1941-08-07

Powerhouse construction--transformer deck

Transformer deck at East Powerhouse

1941-12-29

Powerhouse construction--West Powerhouse

West Powerhouse from Car Skip

1940-04-10

Powerhouse construction--pit #7 in West Powerhouse

Looking up from pit #7 in West Powerhouse--natural illumination

1941-02-14

Powerhouse construction--laying plywood for pour in West Powerhouse

Residency No. 3, Specifications 2329, Unit R-3, Second Stage Concrete, Barrel Pour No. 9 to Elevation 977.0 and Pour No. 10 Elevation 978.87 Slab, Right Powerhouse. June 17, 1949. Contractor: Morrison-Knudsen Company, Inc. and Peter Kiewit Sons'...

1949-06-17

Powerhouse construction--station service from balcony

The two 14,000 h.p. station-service turbines at the left powerhouse are embedded in concrete to elevation 951, the generator floor level.

1940-08-01

Powerhouse construction--applying oil

Terrazzo machine man applying linseed oil and turpentine to floor and base of Unit L-1, elevation 991, West Powerhouse. This oil is floated for at least six hours before being removed.

1949-03-25

Spillway and drum gate construction--cleaning east powerhouse area

Men and machines clean up debris from powerhouse area. Dam is in the background.

1941-12-29

Coulee Dam irrigation pumping plant and discharge pipes--placing reinforcing steel

Construction of the Pumping Plant Structure, Grand Coulee Dam, Coulee Dam, Washington. Installation of pumping unit P-2 discharge pipe, showing reinforcing steel being placed in concrete form is the square opening of the block out which extends...

1949-05-16

Coulee Dam irrigation pumping plant and discharge pipes--pump plant construction

Looking north over pump plant construction

1940-06-21