Journal of the Association of Engineering Societies (1881) (14764453912)

Identifier: journalofassocia5051asso (find matches)
Title: Journal of the Association of Engineering Societies
Year: 1881 (1880s)
Authors: Association of Engineering Societies (U.S.)
Subjects: Engineering
Publisher: St. Louis : Board of Managers
Contributing Library: Northeastern University, Snell Library
Digitizing Sponsor: Northeastern University, Snell Library

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t all times free fromice. Since 1853 only on three occasions has the river been entirelyfrozen over, the last time in 1888. These ice conditions are ofbut a few days duration, however, and modern vessels withsteel hulls experience no delay. The channel width and depth in the harbor is ample toaccommodate the size of vessels which at the present time makethe Port, and the plans of the government and of the Port ofPortland provide for the further deepening and widening of theharbor in advance of the depth obtained in the ship channelto the sea. A general map of the harbor is shown on the folding plate,the foot of Ross Island being considered as the head of deepwater navigation. The present city boundary on the north isjust below Swan Island. Present Port Facilities. The city has already developed, by private interests, ariver frontage over five miles in length, which is now used byvessels ranging from the small river boats and coasters up to Journal ok tbe Ash< Engineering Societies,
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PAfLWAY L/N£S- 5T£AMAND tLECTRtCWHARVES a- LANDINGSDf=i\ Docks BU/LD/NGS ADJOINING WAT£RFfiONT PLATE B deantothbe thso plbe pioi wa(t\m C( a)tiw IT i(fjb s atI PORTLAND, ORE., HARBOR AND TERMINAL FACILITIES. 13 large ocean-going tramp steamers. This development has takenplace on a channel which averages in most places over i 000 ft.in width. The principal docks for ocean carriers have a depth offrom 25 to 35 ft. at low water. There are twenty-two well-constructed docks, from which about ninety per cent, of the deep-water shipping is done. These docks, varying in length from300 to 900 ft., are all of the quay construction type. Manyof these docks are equipped for handling freight economically,being supplied with derricks and electric conveyors, and aboutninety per cent, of them are connected with rail transportation. The harbor is in reality divided into two distinct parts,the upper harbor above, and the lower harbor below, the Oregon-Washington Railroad and Navigation Companys bridjournalofassocia5051asso

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