Structures - Large, medium

Images of diversion dams and drop structures

2007-01-02
2007-01-02

Equipment for construction, transportation, and maintenance--steel casing from turbine

One steel casing for a giant turbine at the Grand Coulee Dam makes a full carload. Water from the Columbia River, falling through this 16-foot runner at the rate of 141 tons a second, will drive the biggest electric generator ever built, to...

1941-04-03

Site preparation-- early construction

General view of early phase of construction of Grand Coulee Dam

2024-11-21

Riverbanks and slope protection--ferry used to transport riprap and armor rock

Photograph of the cross-river ferry taken from the left side ramp. Detail of the 4-drum hoist and the cables required to maneuver the ferry may be noted. This ferry is being used to carry some 350,000 tons of riprap and armor rock from the Bull...

1950-09-12

Site preparation--removal of overburden

Before designs for the structure could be completed contract for the removal of two million yards of overburden was let to David H. Ryan. A slide along the left bank increased the amount of material to be handled to three million yards. Grand...

1933-12-14

Installation of turbines and generators--workers install scrollcase

Bureau workmen Stretching bolts on scroll case in east powerhouse at Grand Coulee Dam, Left to right; Walt Scott and Robert Bush

1950-11-09

Equipment for construction, transportation, and maintenance--vertical lift hoist

Columbia Basin Project, Grand Coulee Dam. A view of the vertical lift hoist, block 10, with cable trays on either side and transit conduit in the background

1941-08-26

Equipment failures--damaged thrust bearing show

Unit L-7 thrust bearing shoe Y-3, position No. 3, photographed after failing on June 30th, 1948, after 5,353 hours of service. Grand Coulee Power Plant, Columbia Basin Project, Coulee Dam, Washington

1948-07-01

Site preparation-- general view of rock cleanup

Columbia Basin Project, Grand Coulee Dam. Exposed bedrock in the center section looking west toward block 40. Derrick equipment mounted on the steel shell on the left and another which is to be mounted on the timber located on the rock, are to be...

1937-04-29

Spillway and drum gate construction--upstream view of Grand Coulee [01]

Upstream view of the dam

1941-05-09

Spillway and drum gate construction--upstream view of Grand Coulee [02]

Upstream view of the dam taken from Rattlesnake Peak

1941-04-25

Spillway and drum gate construction--spillway section [02]

Downstream photo of the spillway section at Grand Coulee Dam

1940-12-31

Installation of turbines and generators--men carry bolts

Bolts and nuts weighing 193 pounds, couple the sections of the shafts for the two 75,000 kilowatt Shasta generators being installed in the Grand Coulee Dam left powerhouse. The bolts are five inches in diameter and 25 inches long. Each section of...

1942-12-29

What's This About Flooding Out the Grand Canyon?

Document: Congressional Record, "What's This About Flooding Out the Grand Canyon," Morris K. Udall, September 15, 1965, page 2

1965-09-15

Coulee Dam irrigation pumping plant and discharge pipes-- aerial view of feeder canal

An aerial view of the feeder canal looking west. The surface runoff chutes on the right slope of the canal in the foreground area are at stations 45+05 and 48+60, respectively. The slide cracks are visible at the left center. A good view of the...

1947-10-21

Construction of pipelines, syphons and tunnels--South Coulee Dam, Main Canal Headworks...

South Coulee Dam--Main Canal Headowrks--View taken from the east bank of the approach channel looking west and downstream. Mixer and ""Pumperete"" set-up are shown in the central part of the view. The cut-off wall footing which runs through the...

1948-05-04

Riverbanks and slope protection--floating caisson exits drydock

Floating Caisson aft section passing thru the drydock gates as it moves out into the drydock channel, where it will be moored while the Caisson Seat Frame is being assembled in the drydock. Foreground, Caisson with operating machinery on deck....

1949-08-24

Equipment for construction, transportation, and maintenance--spider on dam

Spider on west end of dam enroute to right powerhouse. The dimensions of the spider are: Length; 27'-7"" Width; 16'-4"" Depth; 6'-1""

1948-07-22

Scale models, testing, and oddities--piezometer test apparatus

North Coulee Dam, Piezometer Terminal Well, A view of the piezometer test apparatus at the corner of the upstream and right walls of the well. The pore pressure in the dam embankment and foundation are transmitted through the water-filled tubes...

1950-10-24

Construction of pipelines, syphons and tunnels--South Coulee Dam, Main Canal Headworks...

South Coulee Dam--Main Canal Headworks--View taken from bank above west outlet transition wall looking east and upstream at the downstream end of a section of the barrels.

1948-07-15

Site preparation--excavating the bank

View of machinery excavating the bank at the Grand Coulee site

1934-03-02

Powerhouse construction--east powerhouse foundation [01]

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

1941-01-25

Riverbanks and slope protection--armor rock along the riverbank [02]

Showing general area of section ""A"" for placement of granite armor rock along the left bank of the Columbia River below Grand Coulee Dam. The section extends from the crane upstream to a point opposite the large concrete blocks, showing on the...

1949-04-26

Equipment for construction, transportation, and maintenance--loading riprap from the...

The Bucyrus-Erie electrical shovel loading riprap from the quarry, into a 20-yard Euclid truck. Specifications No. 2808, River Channel Improvements. Contractor: Morrison Knudsen Company, Inc. Grand Coulee Dam, Columbia Basin Project, Washington

1950-07-14

Scale models, testing, and oddities--man works with concrete

Man works with concrete during construction of Grand Coulee

1940-07-26