Scale models, testing, and oddities--concrete inspection [02]

Govt. inspector filling cylinder with concrete sample at a plant for compression braking test

1940-07-26

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

Equipment for construction, transportation, and maintenance--truck-mounted equipment

A centrifugal oil purifier, a filter, and automatic electric heater, and meter, pumps, gauges, pipes, and necessary appurtenances are mounted on a simple truck for use in various parts of the plant. The unit is designed to handle lubricating,...

1941-09-10

Equipment for construction, transportation, and maintenance--testing Gantry crane

One hundred fifty ton gentry crane being tested. Crane is lifting a thirty-seven and one half ton concrete block. This machine was built by Star Manufacturing Company of Tacoma, Washington and is installed on tracks reaching across the top of the...

1942-05-22

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 failures--failure of L-3 turbine [02]

Failure of L-3 Turbine. Note: deflector plate on top of runner and the one deflector plate that was left in original position. Also scored condition of runner top rib

1945-06-15

Equipment failures--damaged sheets of asbestos

This picture shows how the stack of material was dislodged and scattered thru car. Note broken sheets. See photo #18671-3. Damaged (broken and chipped) sheets of asbestos board as received in car B&O 270305, March 17, 1949. Shipment under...

1949-03-18

Page 2

2 estimates as a basis, it was found necessary to estimate by its staff, approximately 17 pereent of the total 'ultimate power investment in authorized projects* A copy of this information, as prepared by the Hoover Commission, is enclosed* It...

2009-04-01

Cedar Creek dam and falls

20 foot dam and falls on Cedar Creek near Hall, Washington
Photo shows nearly low-water stage

1937-08-06

Page 26

Reclamation projects come into production slowly. Experience over the past 50 years show that 25-30 years elapse between beginning of construction and full production, On large basin wide projects the time interval is even greater. For...

2009-05-01

Map of the Oregon Railway & Navigation Co's. Palouse lands. (1888)

1 map; 45 x 58 cm. Gov't Lands Taken; O.R.&N.Co. Lands sold; School lands; and O.R.&N.Co. Lands all identified by...

1888-04-29

Geologic and topographic map of the Northern Pacific route from St. Paul, Minnesota, to...

1 map : col., 23 x 36 cm. Inset map of the great lava plateau of Columbia River, stretching southward across Oregon and eastward nearly to Yellowstone National Park. A larger scale map of this route can be seen at...

2024-04-29

Employee tennis courts--1938

Image of tennis courts taken in 1938 at the employee housing site for Coulee Dam

1938-09-04

Engineer recruitment program--Arlington, Oregon

The old business district of the town of Arlington, Oregon, still remains intact, but time is fast running out. The overpass bridge of Interstate Highway 80N is scheduled for completion by the end of the year. By that time the Walla Walla...

1965-04-29

Coulee Dam irrigation pumping plant and discharge pipes-- view of tract No. 3

View of tract No. 3 Taken from a point approximately 300 feet north and 300 feet east of the southwest corner of the NW 1/4SE1/4 of Sec. 26, T. R. 28E., W.M., looking N. 08 degrees E. U.S. V. Howard Adams, et al.

1949-06-22

Site preparation-- early construction

General view of early phase of construction of Grand Coulee Dam

2024-04-29

Coulee Dam irrigation pumping plant and discharge pipes-- aerial view of Grand Coulee [03]

An aerial view looking east. A general view showing feeder canal, area immediately above slide area of canal, and part of town of Grand Coulee. Feeder canal shown back to headworks

1947-10-21

Coulee Dam irrigation pumping plant and discharge pipes--pump-discharge outlet...

Specifications 2329. Morrison-Knudsen Company, Inc., and Peter Kiewit Sons' Company. Progress view of the pump-discharge outlet structure showing the status of construction of the crest bends of P-1 to P-4 discharge pipes. Pipes P-1 and P-2 have...

1949-09-08

Coulee Dam irrigation pumping plant and discharge pipes--west crane recess

View showing west crane recess

1940-04-10

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--east powerhouse foundation [01]

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

1941-01-25

Spillway and drum gate construction--hoisting elevator shaft

Hoisting elevator shaft form into place. 3 men riding load.

1941-06-30

Spillway and drum gate construction--view of the spillway section [01]

View of the spillway section from the left bank

1941-03-31

Spillway and drum gate construction--drum gate #1 [04]

Men work on drum gate number one

1940-12-07

Spillway and drum gate construction--concrete placing

Concrete placing in twist slot

1941-10-15