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Oregon Digital
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to be removed approximately, from the information in his possession, to be 50,000 cubic yards, in order to give 10 feet at low stage of the river.
The Board is of the opinion that such a survey and estimate ought to be made as soon as possible,...
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which have been indicated to the successful accomplishment of low-water navigation which may be expected to obtain for 6 months in the year. This result is not, however, without its difficulties and its serious contingencies, and one of the great...
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in his letter of July 28, 1879, transmitted by Major Gillespie, and attached to his communication marked A.
Having, however, reached the conclusion that the lock construction ought to he deferred until the low-water level at the foot of the...
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river and form short and steep slopes for boats to contend against in ascending.
This done, we can, with a close approximation to accuracy, determine the low-water line upon which to base the canal references, and can better determine also the...
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The question of excavating the chute for a low-water channel, or leaving an opening, with a gate or other arrangement for closing it during high-water, is one of cost. The navigation opening, if made, should not be above the old middle landing....
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river to the foot of the locks for seven months in the year could be obtained without the expense of building a breakwater. I took the ground that the propriety of building the breakwater at all was questionable. If built close to the left bank,...
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imam depth may be assumed, deduced, or actually determined. The Board decided upon the actual determination, on account of the importance of every foot in the locks, whose gates are to be 54 to 58 feet high, and span 70 feet. Major Wilson's...
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ciding that the lock and artificial channel construction " should not be commenced until the reefs are removed."
The first interrogative in section 5, department letter, is answered in the negative. The low-water channel was to be in the main...
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M M 5.
IMPROVEMENT OF THE MOUTH OF COLUMBIA RIVER, OREGON. In compliance with the river and harbor act approved March 3, 1879, a survey of the bar at the mouth of the Columbia River was made under instructions from this office by G. M.... |
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March. These storms have likewise, by their long continuance, at times raised the water in the outer harbor to such unusual heights that at high-tides, when a strong southerly wind was prevailing, the waves have swept up along the beach in front...
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The island is gradually crowding against the north channel, making it narrower and shoaler each year.
The following statistics, required by act June 23, 1866, are respectfully submitted.
The appropriations for this work have been as follows :...
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general contour of the bottom appearing along the. curve of 6 feet depth, which is 100 feet nearer to the low-tide line.
Over the submerged portion of Clatsop Spit the depths near the shore line are greater by from 3 to 4 feet. The head of the...
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most faithful and satisfactory discharge of the duty assigned him. I submit herewith the report of Captain Jessen.
It will be observed that a few very marked changes have occurred since last survey. The northwest end of Sand Island has moved...
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shores the sands of the sea have accumulated into vast submerged banks, through which there are usually two channels for deep-draught vessels, though the most southerly one is seldom maintained in the same unchanging direction for five consecutive...
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It is practicable to make a training wall for the ebb waters by substituting for the stone dike a double or triple row of piles, and filling the spaces with fascines and stone. Such a temporary and experimental dike is, however, not recommended....
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Cape Hancock light-house and the flag-staff at Fort Stevens was used as a Use-line, a distance of 10,073.8 meters according to the United States Coast Survey of 1568.
The work of triangulation was completed on the 24th of August, and sounding...
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cable to run more ilia* a few lines across the sands, owing to the low depth of water. The present survey shows an increased depth and a new channel forming, which at present has a depth of 14 to 15 feet at mean low-water on the prolonged line of...
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74 p. Includes sections of Appendix MM: 1880 annual report of Maj. G. L. Gillespie, Corps of Engineers, Bvt. Lieut. Col., detailing construction, surveys and other works of river improvements for the Willamette and Columbia rivers. Also included...
1880-11-24
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47TH CONGRESS,
1st Session.
HOUSE OF REPRESENTATIVES.
Ex. Doc.1,
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...
2006-01-03
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REPORT
OF
THE CHIEF OF ENGINEERS,
UNITED STATES ARMY
.
2006-01-03
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Unrelated material omitted
IMPROVEMENT OF RIVERS AND HARBORS IN OREGON AND IN WASHINGTON TERRITORY—IMPROVEMENT OF LOWER CLEARWATER RIVER, IDAHO—CONSTRUCTION OF CASCADES CANAL, COLUMBIA RIVER. Officer in charge, Maj. G. L. Gillespie,...
2006-01-03
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to Columbia City, on the Columbia, for sea-going vessels and steamers drawing 20 feet or more, by the construction of a system of dikes and dams formed of piles and loose stone, which would utilize the available waters and currents of these rivers...
2006-01-03
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July 1, 1880, amount available $44, 995 32
Amount appropriated by act approved March 3, 1881 45, 000 00
$89,995 32 July 1, 1881, amount expended during fiscal year, exclusive of
outstanding liabilities July 1, 1880 45, 960 05
July 1,...
2006-01-03
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which are from 10 to 40 miles apart in the Columbia, and closer in the Snake, the channel before improvements were commenced was usually wide and well defined, with deep water. At the reefs the river was choked with visible or sunken rocks, and...
2006-01-03
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reference (126), the abutment of the right-wing wall has made a proper junction with the protective embankment and stone wall ; a timber bulkhead has been built across the canal prism at station 28, to keep out backwater from the river blow stage...
2006-01-03
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