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44TH CONGRESS, HOUSE OF REPRESENTATIVES. 5 Ex. Doc. 1,
1st Session. Part. 2.
REPORT
OF THE
SECRETARY OF WAR;
BEING PART OF
THE MESSAGE AND DOCUMENTS
COMMUNICATED TO THE
TWO HOUSES OF CONGRESS
AT THE
BEGINNING OF THE FIRST...
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APPENDIXES
TO THE
REPORT OF THE CHIEF OF ENGINEERS,
(CONTINUED.)
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GG I
IMPROVEMENT OF THE LOWER WILLAMETTE AND COLUMBIA RIVERS FROM PORTLAND, OREGON, TO THE SEA.
Several distinct localities on the rivers named are embraced in the report of operations (luring the fiscal year ending the 30th of June,...
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the stage of the river, the former having become very inclement and the latter having risen very much after the commencement of the rainy season, thereby rendering a continuous prosecution of the work impracticable. Upon an examination of this...
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the stage of the river, the former having become very inclement and the latter having risen very much after the commencement of the rainy season, thereby rendering a continuous prosecution of the work impracticable. Upon an examination of this...
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which annually occur, in the months of April and June. The soundings were taken with the lead. Owing to the shape of the channel at this local. ity, combined with the extreme high water and soft nature of the bottom at the time, it was difficult...
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which annually occur, in the months of April and June. The soundings were taken with the lead. Owing to the shape of the channel at this local. ity, combined with the extreme high water and soft nature of the bottom at the time, it was difficult...
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the prosecution of the works of improvement at this locality during the current year will be in part a continuation of the method heretofore adopted in connection with a more extended system of dams and jetties, the plan of which is herewith...
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through Percy's Slough even forces its waters completely across the course of the main bed and between the two islands. The north hank of Coon's Island must be strongly protected by sheet-piling or by piles firmly driven and wattled together with...
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tory, and that the improvements will permanently secure and aid in the maintenance of a sufficient depth of water to float the largest class or merchant-vessels between the mouth of the Columbia and Portland. The regimen of the Willamette is by no...
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place almost invariably between those dates. The United States dredger has always been able to commence work about the 5th or 10th of August.
It is expected to use a portion of the appropriation in executing as .far as possible the plan of...
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place almost invariably between those dates. The United States dredger has always been able to commence work about the 5th or 10th of August.
It is expected to use a portion of the appropriation in executing as .far as possible the plan of...
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and is held in readiness for future use. Although the foundation to a great extent proved to be quicksand, and the velocity of the current unusually strong, still, upon an examination of the piles, caps, and braces, it was found that the...
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and is held in readiness for future use. Although the foundation to a great extent proved to be quicksand, and the velocity of the current unusually strong, still, upon an examination of the piles, caps, and braces, it was found that the...
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and is held in readiness for future use. Although the foundation to a great extent proved to be quicksand, and the velocity of the current unusually strong, still, upon an examination of the piles, caps, and braces, it was found that the...
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Astoria and ninety-seven above the mouth of the Columbia, or from the open sea. The upper end of Columbia City Bar (proper) is less than two miles below the former. Examinations and soundings of the two bars were made in August and October, 1874....
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(marked by four buoys—two black and two red) is about 2,500 feet in length, and will, from its nature, always require more or less work. The new one will only be 1,200 feet long, with a width of 150 feet, and can be more readily kept open, if...
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the channel-way near the mouth of that river. This will be undertaken in order that all the requirements of commerce and navigation at that locality may be amply accomplished. With an increased depth to be obtained by dredging over Post-office and...
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come other difficulties, or remove other obstructions to navigation, at this locality, as well as at several other points. They cannot be foretold, but may be always anticipated in rivers subject to the very great changes observable in the regimen...
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come other difficulties, or remove other obstructions to navigation, at this locality, as well as at several other points. They cannot be foretold, but may be always anticipated in rivers subject to the very great changes observable in the regimen...
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from soundings made during an examination at the end of June of over 15 feet at average low-water for a length of scarcely 200 yards ; so that, with two daily strong flood-tides of from 6 to 01 feet, merchant-vessels drawing not over 21 or 22...
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from soundings made during an examination at the end of June of over 15 feet at average low-water for a length of scarcely 200 yards ; so that, with two daily strong flood-tides of from 6 to 01 feet, merchant-vessels drawing not over 21 or 22...
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channels north of the " Hog's Back," which finally resulted in the discovery of an excellent one, having not less than 17; feet at its shoalest point, and that at an extremely low-tide. The new channel commences from buoy U, passing beacons A and...
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sites was left to their better judgment and experience. Tin cans, anchored by bags filled with stones, as buoys to mark their positions, were moored at or near the old iron buoys. The steamer then shifted the upper-channel buoy to the new channel...
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cal year. Owing to the great extent of the " Hog's Back" Shoals, which spread out to about ten miles in width at the broadest part between the shore-lines, there is no perceptible rise in the river at this locality ; but the forces of the currents...
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