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Oregon Digital
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nearly disappeared as a separate shoal, and it only needs deeper water in the main channel and the continuance at the shoaling at the south channel to make the state at affairs apparently identical with that 1792.
Nothing thus far has been said...
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a sufficient depth of channel. Such a section is found between Chinook Point and Point Adams.
If the water-way between Cape Disappointment and Point Adams be narrowed to something less than that between Chinook Point and Point Adams, and the...
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terially obstruct the inflow at the flood tide. It regulates and direction the whole volume at the ebb below the level at low water.
The Board recommends the construction, at as early a day as possible at a jetty, slightly convex to the north,...
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practicable to introduce it, if economy in construction be thereby promoted. A favorable circumstance in this connection is the apparent absence, over a considerable length at the proposed work, of the sea worm, which in some other sections of the...
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viting attention to this matter, does not feel called upon to recommend legislation concerning it.
In 1868 much at Clatsop Spit was out at water, and there was a south channel with 25 feet in it. It might be hoped, then, that a work which should...
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6. Extract from description of headlands, bottom of the ocean, tides, currents, &c., prepared at United States Engineer Office, Portland, Oreg., and published in 1882 by the Portland Board of Trade.
7. Statement of direction, duration, and...
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chart. Queen's Channel is a second branch of the main channel. It follows along the south border of the Middle Sands in a due-east direction, and has two entrance; one of them is an opening at the western angle of the Middle Sands flat, one-third...
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" The western end of the great middle shoal eastward of Point Adams had been cut away three-fourths of a mile."
The bar is shown upon this chart in the north channel half-way up its length to Cape Disappointment, and 1 mile westward of the line...
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The soundings are reduced to the mean lower low water.
This chart, "M. C. IL 16, Engineer Office, Portland," was traced for a ready comparison with other surveys.
United States Engineer Survey, Lieutenant Price, in 1881.-The outer bar near...
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Locations and depths of channels at times of different surveys—Continued.
Channel over outer bar
Authority of survey. Year.
Name.
Depth.
Distance of bar at mid-channel from middle of line connecting Cape Disappointment and present...
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The currents on the Columbia River bar are subject to constant change, depending on the tides, channels, winds, and outflow of the river. Strong undercurrents exist. Heavy winds produce dangerous counter-currents, and the midsummer river flood...
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STATEMENT SHOWING THE NUMBER OF TIMES THE WIND WAS OBSERVED TO BLOW FROM THE EIGHT PRINCIPAL POINTS OF THE COMPASS AT PORTLAND, OREGON, FOR EACH MONTH FROM JANUARY, 1877, TO DECEMBER, 1881, COMPILED FROM THE THREE TELEGRAPHIC OBSERVATIONS; ALSO,...
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Number of times the wind was observed blowing, 4c-Continued.
1881.
Point. January. February. March. April. May. June. July. August. September. October. November. December.
N 7 1 2 8 8 6 20 22 10 7 5
NE 11 3 1 0 1 2 1 0 2 0 2 1 3
E 19...
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tervals, generally two minutes, was determined by theodolite readings at the two shore stations on Cape Hancock and Fort Stevens, used during my survey of May and June, 1881. The methods were in every respect the same as used on that survey,...
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P P 3.
IMPROVEMENT OF UPPER WILLAMETTE RIVER, OREGON.
The object of the plan adopted for this work is to furnish an easy
light-draught navigation from Portland to Eugene City, Oreg., inclusive of 6 miles on the Yamhill and 6 miles on Long...
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certain absence of bar work and snag removal, navigation will likely be blocked for several weeks and much impeded until operations can be resumed.
The Willamette Valley is of considerable extent and great fertility. It furnished last year about...
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COMMERCIAL STATISTICS.
The Willamette River is in the collection district of Willamette. The nearest port of entry is Portland, Oreg.
The nearest works of defense are at the mouth of the Columbia River.
The revenue collected there for the...
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COMMERCIAL STATISTICS.
The Willamette River is in the collection district of Willamette. The nearest port of entry is Portland, Oreg.
The nearest works of defense are at the mouth of the Columbia River.
The revenue collected there for the...
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Ainsworth; the other rapids named are the worst ones between Lewiston and Riparia.
Examinations were made at the rapids for information on which to. base contract specifications. The work was advertised, and the only bid received was rejected,...
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No. Name and address of bidder.
Cobble-stone and gravel.
Cubic yards, more or less.
Price.
Solid rock.
Location.
Price.
Cubic yards, more or less.
Frank T. Dodge, Portland, Oreg
Five Mile Rapids and reef next below
Little...
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P P 5.
CONSTRUCTION OF CANAL AROUND THE CASCADES OF THE COLUMBIA RIVER, OREGON.
The plan of this construction is to give lockage around the main rapid and an open river navigation through the minor rapids below, for stages, at the foot...
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mitted. The borings show that there is not very suitable lock foundation at the head of the canal, but a fair foundation exists for two locks near the middle part of the canal location, where it is now expected to place them, making the locks...
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[chart]
SECTIONS OF TEST HOLES
BORED AT
CASCADES CANAL
OREGON
DEC.13-JAN.12
1882 - 3
TEST HOLE NO.1
TEST HOLE NO.2
TEST HOLE NO.3
TEST HOLE NO.4
TEST HOLE NO.5
REF121.45
SURFACE ELEVATION
REF. 104.08
SAND...
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before any improvements were made, and 57 miles where navigation is known to be practicable. Open river work at Priest Rapids on the Columbia will enable a boat to ascend 153 miles further. North of this there are 430 miles of water to the head of...
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