Riverbanks and slope protection--armor rock along the bank [01]

Showing granite armor rock along the left riverbank below Grand Coulee Dam ready for placing in section ""A."" The rock is obtained from the upriver quarry. This work is performed by J.A. Terteling and Sons, Inc., under provisions of negotiated...

1949-04-26

Site preparation--Caterpillar excavation

Caterpillar hauls away materials during the excavation of Grand Coulee site.

2024-04-26

Spillway and drum gate construction--view of the spillway section [02]

View of the spillway section of Grand Coulee taken from the right bank.

1941-05-05

Map of main canal, gravity plan (1923)

1 map ; negative, 13 x 35 cm. Before the arrival to Washington State of the first irrigation projects handled by the U.S. Reclamation Service, the Northern Pacific Railroad and other railway companies funded private irrigation projects in...

2024-04-26

Geographically correct railroad and road map of the Pacific Northwest the tinted area...

1 Map : 26 x 40 cm. "The Main Highways are Shown by the Heavy Black Lines." "Dark green shaded area show Columbia River Basin Project which will reclaim 1,750,000 acres." See front cover and back of map:...

Columbia Basin Project, (1925)

1 map: col., 18 x 21 cm. Before the arrival to Washington State of the first irrigation projects handled by the U.S. Reclamation Service, the Northern Pacific Railroad and other railway companies funded...

2024-04-26

Employee housing-- 1950 [01]

Coulee dam and vicinity from Crown Point

1950-05-02

Spillway and drum gate construction--observation point

View of the dam with newly constructed observation building in the foreground

1941-07-04

Spillway and drum gate construction--spillway section from left bank [01]

Spillway section of the dam as seen from the left bank near the shop building. Note the man and care at the waterline. (normal)

1942-04-28

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

Equipment for construction, transportation, and maintenance--115-ton coaster gate on...

Transfer of 115-tin coaster gate from east forebay, Unit R-9 to west forebay, Unit L-7. This transfer (made on war surplus steel pontoon barge) will expedite starting of unit L-7 by approximately three weeks. This picture shows the coaster gate...

1947-09-09

Spillway and drum gate construction--outlet works

View of the outlet works near the base of the dam. A man is standing in foreground for scale.

1941-06-26

Equipment for construction, transportation, and maintenance--transporting a rotor shaft

Due to lack of proper transportation equipment, difficulty was encountered in taking the R-1 rotor shaft across the spillway roadway of the dam. In order to distribute the load safely, it was necessary for this truck boom to hook onto the trailer...

1948-07-21

Site preparation-- grouting operations

General view of grouting operations on vertical rock face below pumping plant dam.

1939-06-06

Spillway and drum gate construction--view of drum gates

Telephoto view of drumgates near base of the dam.

1941-05-22

Employee housing-- 1950 [02]

Telephoto photograph of home and yards in the Airport Addition to Coulee Dam

1950-09-20

Equipment failures--thrust bearing discs for unit L-3

View of eight thrust bearing discs for unit L-3. The discs are laying upside down to indicate worn spots in the centers where the jack screws had made contact. The depth of these holes varied from 0.005"" to 0.007"" Grand Coulee Power...

1945-10-22

Riverbanks and slope protection--initial run of the floating caisson

Specifications No. 2475, March, 23, 1949. This is picture No. 4 of a series of thirteen showing movements of the floating caisson on its initial trial run from the drydock to the spillway bucket. The caisson is at station A29+98.38/B5+97.92 at...

1949-03-23

Site preparation--excavation

A view of early excavation operations at Grand Coulee

2024-04-26

Equipment failures--scoring on brake piston

Scoring of the leading side of generator break piston #1 due to its tilting during jacking of the rotor. Top of piston is in lathe chuck--leather is removed from the bottom of piston. Unit L-1, Grand Coulee Power Plant

1946-10-16

Riverbanks and slope protection--anchored caisson

Specification No. 2475, March 24, 1949. When this photograph was taken the floating caisson was anchored by its ""A"" frame to the spillway bucket section. The caisson barge with machinery for operating the caisson is between the towers. At the...

1949-03-24

Riverbanks and slope protection--submerging the floating caisson

Specifications No. 2475, March 24, 1949. This photograph was taken as the floating caisson was being submerged in the spillway bucket during its initial trial operation. The caisson barge with operating equipment is shown floating between the...

1949-03-24

General map (1923)

1 map ; negative, 18 x 34 cm. Gravity Project Area, Pumping Project Area, and Boundary of watershed above Albany Falls all marked by differentiated shading Before the arrival to Washington State of the first irrigation projects handled by the...

2024-04-26

Site preparation--excavating the diversion channel

A 5-yard electric shovel and 10-yard buggies working in the diversion channel

1936-08-01

Powerhouse construction--West Powerhouse

West Powerhouse from Car Skip

1940-04-10