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4801 - 4825 of 5942 Items << < 188 189 190 191 192 193 194 195 196 197 > >>
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The Columbia River seal control program operated under legislative authority. The Fish Commission paid has paid a bounty since 1936 and hired a seal hunter during 1958-1970. In May 1972, the author wrote to resource management and research...
1972-12 (iso8601)
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TABLE 1.—Annual costs and benefits (1946 prices)
Annual costs
Operation, maintenance and replacements:
Irrigation (including domestic water systems)
Navigation Flood control Allowance for amortization of all construction costs in...
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In Part I the environment of the coastal dunes of Oregon and Washington is analyzed. Most of the substratum is a narrow foreland or terrace, in part submerged, that borders the mountain front. Temperature is relatively low in summer and rarely...
1958 (iso8601)
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2024-11-25
2024-11-25 |
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2024-11-25
2024-11-25 |
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regarded as setting the basic rules for system operations for salmon. The current biological opinion calls for water from federal headwater storage projects on the Columbia, with limited contributions from major tributaries such as the Snake....
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OPERATIONS.
1892-93. 7,500 1. f. dike built, 93, 3410. 1893-94. About 10,0001. f. dike built, 94, 2598. 1894-95. About 15,0001. f. dike built, 95, 3411. 1895-96. Repairs made to dikes, 96, 3335. 1902-03. Sur. for location of proposed chans.;...
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Sur. of bar shows slight movement seaward of 24' inner curve, extension seaward of Clatsop Spit, and building up of Clatsop Spit on n. side; 24' curve gives indication of breaking through crest, 04, ((80.
Teredo destroying piles; severe storms...
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would be if a jog were put into it by an earthquake—a rapid shaped like a flash of lightning, and with just as much kick in it.
After much climbing and scrambling over rocks, Roos found a place about half way down the left side of the jagged...
2004-08-16
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Newly constructed section of primary state highway No. 22 which was relocated to higher ground.
1940-03-05
2024-11-25 |
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while Andy and Blackmore completed lining down. It was an especially nice job, taking the boat down that last steep pitch into the big whirlpool and then working her round a huge square-faced rock to a quiet eddy, and I should greatly like to have...
2004-08-09
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300 feet wide and 22 feet deep at low water, where but 19 feet was found before beginning work.
Martin Island Bar.—Work was begun at this bar on November 28 and finished on December 31, when the bend in the channel at the lower end of Martin...
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W.P.A. workmen use 90 horsepower tractors to push over small trees of no merchantable value. They are then cut and burned to clear the reservoir area above the dam.
1939-06-27
2024-11-25 |
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Koehring 4-yard concrete mixer of the tilting drum type. The mixing plant contains 8 of these mixers in two batteries of 4 each.
1938-12-28
2024-11-25 |
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Image Caption: FISHWHEEL AND VILLAGE OF CASCADE LOCKS --page break-- Where fish-wheels are ineffective because of lack of current, salmon are ensnared in fish-traps. These consist of a rectangular, net-lined enclosure of driven piling, called...
2004-07-26
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All-steel closure gates in place at spillway diversion channels Nos. 34, 36, and 38. The gates were placed on the upstream side of the dam only; the bottoms of the diversion channels were above the tailwater elevations, consequently gates were not...
1938-10-13
2024-11-25 |
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Image Caption: UPPER END OF LITTLE DALLES --page break-- tween porphyry walls about thirty feet apart. The prospect looked very promising. I had some of the ore assayed and it ran $85.00 to the ton.
Being influenced by the warnings given me, and...
2004-07-19
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The elevation 1650 level of the Brett Gravel Pit is opened up for the mining of raw aggregate.
1938-05-24
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Dismantling of the westmix concrete plant used by the MWAK Co. Consolidated Builders re-assembled it in a new location on the east side of the river.
1938-04-05
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The notes cover multiple aspects of the development of the Columbia river. Also discussed are the prospects of the Bruce's Eddy and Penny Cliffs Projects
1956-03-26
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Artists rendition of the entire Northwest--including existing dams and those that are proposed/under construction
1960-11-25
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View showing scorings on L-4 turbine shaft caused when packing gland burned out
1944-06-09
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