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4451 - 4475 of 5942 Items << < 174 175 176 177 178 179 180 181 182 183 > >>
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Columbia Basin Project, Irrigation Division, Potholes Dam. Right rear view of contractors 24 cubic yard bottom dump Euclid. Note size of tires. Man in picture is six feet tall. Despite its size and weight, this piece of equipment has excellent...
1947-08-04
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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
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Columbia Basin Project--Irrigation Division. West Canal and East Low Canal--Specifications 1286 and 1422. View showing weighing equipment at Adco batching plant. Back of housing for cement scale dial and recorder tape are shown at right...
1948-09-08
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Columbia Basin Project, Irrigation Division, West Canal, Specifications 1286, Utah Construction Co., and Winston Bros. Co., Contractor. Using a Jackson electric vibrator to place compacted backfill at the lateral turnout, Station 163+25. The...
1949-05-25
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View showing sand and water erosion of the bronze upper casing ring of pump number 2 (south pump) Pasco Pumping Plant after operation during a part of the 1948 irrigation season. Pump is Worthington vertical shaft volute type, 600 R.P.M. with...
1948-10-05
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A branch of excavation spoil pile in Rattlesnake Canyon at water edge, in Columbia River.
1935-09-01
2024-11-25 |
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Department of the Interior: Bureau of Reclamation Columbia Basin Project-Washington Grand Coulee Dam Location Map
1934-10-08
2024-11-25 |
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Photograph of west bank were landslide occurred in April 1934
1933-04-03
2024-11-25 |
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Mason City town site (contractor's camp); Government Camp in foreground
1935-10-01
2024-11-25 |
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Inventories and Analysis
Oregon and Washington climate, has created a remarkable diversity of habitat for vegetation and wildlife.
Over 200 rare plant sites were mapped by the Oregon and Washington Natural Heritage Programs. Additional...
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The Roza flow of the Columbia River Basalt group in
Washington State U.S.A. extruded at about 15 Ma during
intermediate geomagnetic polarity. The Roza is underlain
by normal polarity flows and overlain by reversed units.
The Roza is an extensive...
1989-07-06 (iso8601)
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Note on album leaf: Grand Coulee Dam site, looking east, December 1933<br><br>PH Coll 239.6
2024-11-25
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Snow and glaciers in the catchment basins here on the headwater of Snow Creek, high in the Cascade Mountains, made this drainage an excellent source of cold-water supply for hatchery operations during the hot summer months. Plans for the control...
2024-11-25
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When viewing the conveyor suspension bridge from here at the east anchor, it can be readily seen that this means afforded the simplest solution to the problem of delivering such great quantities of aggregate to the West Mix, and also the bulk...
2024-11-25
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Power
Production
"Among regions of the Nation, the Pacific Northwest holds a leading position in the use of electrical energy . . .
"Present hydroelectric power developments . . . utilize only a fraction of the potential power available from...
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Over half (4,500,000 acres) of the harvested crop land is used for small grain production, virtually all of it by dry-farming methods. An acreage of dry-farm land of comparable area (4,500,000 acres) lies fallow. Hay occupies nearly one-third...
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