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2851 - 2875 of 5942 Items << < 110 111 112 113 114 115 116 117 118 119 > >>
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Grand Rapids are to be feared by the navigator as much as any other on the Columbia River. The right hand channel,
as I saw it, is too rough and rock-filled for either a large or small boat to run it. The upper one-third of the left-hand...
2004-07-19
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This is a map with descriptive legend symbols showing people's utility districts and principal municipal systems in Oregon, 1940.
2004-06-28
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Columbia River cut off by downstream cross-river cofferdam, center of picture, to the right. In middle are sections "D"E" and "G" of west cofferdam forming west side of new enclosure. At left is upstream crib-type cross-river cofferdam under...
1937-01-06
2024-11-26 |
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This set of graphic images depicts the low cost of transportation in the Pacific Northwest and internationally.
2004-06-23
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The two ends of west cofferdam removed and area west of block 40 flooded.
1936-11-20
2024-11-26 |
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Concrete mixing plant on west side. Placing trestle at right.
1936-06-01
2024-11-26 |
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Tentative Disposition
Source WI-70
PI-21
PI-75
E F
Problem or Area of Concern
5. Effective action should be taken to minimize pollution from:
a. Soil erosion.
b. Agricultural run-off, industrial, and
municipal wastes.
c....
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Building cribs for upstream cross-river cofferdam. On left is arch form for steel pile facing.
1936-08-01
2024-11-26 |
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Source
Tentative Disposition
F-7, 11 A
Problem or Area of Concern
D. Review Operation for Fuller Control With Existing Projects
1. Existing storage projects should be evaluated to determine whether reallocation of storage among...
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Problem or Area of Concern. Source
Tentative Disposition
2.(Cont) has been suggested as a most productive utilization of the renewable energy source of the region. New dams, however, would be considered as alternatives in planning where...
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Government Camp across the river. Pier 3 for highway bridge under construction - top of pier 2 (east side) in foreground.
1935-04-25
2024-11-26 |
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Master scanned with Epson 1640XL at 800 dpi. Image manipulated with Adobe Photoshop 7.0.
1938-11-30
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Accurate assessment of specific mortality factors is vital to prioritize recovery actions for threatened and
endangered species. For decades, tag recovery methods have been used to estimate fish mortality due to avian
predation. Predation...
2015 (iso8601)
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Master scanned with Epson 1640XL at 800 dpi. Image manipulated with Adobe Photoshop 7.0.
1940-03-15
2003-01-01 |
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Table 1:1. Scenic Area Acreage by County
GMAs SMAs Urban Areas
Multnomah County 6,596 31,150 550
Hood River County 34,953 20,910 4,066
Wasco County 52,180 4,894 5,903
Total Oregon 93,729 56,954 10,519
Clark County 8,215 1,091 0...
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DISCUSSION OF PHYSICAL EFFECTS
It is impossible to forecast all the physical effects that pumped-storage would have on this area. It is conceivable that certain reservoirs could be designated as recreation reservoirs and during the summer...
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Writing guidelines for renewal of Chelan hydroelectric project and report on lamprey eels in the Columbia River
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Document: "Snake-Colorado Project, A Plan to Transport Surplus Columbia River Basin Water to the Arid Southwest", October, 1963, page 8
1963-10-01
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Report discusses the importance of the Columbia River in the culture of the Colville Indians, including their dependence on it for fishing and other resources (78 pages, plus appendices of maps, photos, and other illustrations)
2002-07-01
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The purpose of the Oregon Fish Commission's Columbia River Seal Control Program was to harass seals and reduce their predation on salmon in the river. The effectiveness of the program could not be effectively demonstrated. Fishermen were surveyed...
1971-02-16 (iso8601)
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