. The railroad and engineering journal . entirely new construction, milesof the old Frederick-William Canal enlarged, and of regulated river channels. The canal is made throughout ft. wide at the bot-tom and 76 ft. at water level, for a depth ef It., thegreat inclination of the banks being adopted on accountof the nature of the soil, which is generally a very finesand. For a considerable part of its length the banks areprotected from wash by rip-rapping. While the dimen- 408 THE RAILROAD AND iSeptember, 1891. sions given above are the minimum, they are exceeded atsevera
. The railroad and engineering journal . entirely new construction, milesof the old Frederick-William Canal enlarged, and of regulated river channels. The canal is made throughout ft. wide at the bot-tom and 76 ft. at water level, for a depth ef It., thegreat inclination of the banks being adopted on accountof the nature of the soil, which is generally a very finesand. For a considerable part of its length the banks areprotected from wash by rip-rapping. While the dimen- 408 THE RAILROAD AND iSeptember, 1891. sions given above are the minimum, they are exceeded atseveral points as required by local circumstances. The loclcs have been made to admit of the passage ofthe average sized boats in use on the Elbe, which ft. long, 23 ft. wide, and draw ft. of water when shovels are used, and in many places the earth excavatedis deposited alongside of the canal, thus saving transpor-tation. The masonry is generally of brick, set in cement. Thelocks are founded on beton worked in on a sub-floor of. CONCRETE SEWER AT MOUNT VERNON, N. Y. loaded. The locks are iSo ft. long, ft. wide at thegates and ft. at the center, and carry ft. depth ofwater. It is proposed, however, to enlarge the canalhereafter to take in the largest class of boats in use on theElbe. In that case a second lock, 220 ft. long, will bebuilt alongside each of the existing ones, and the minimumsection of the canal will be increased to ft. width atbottom and ft. at water-level, with a depth of waterof 8 2 ft. The bridges over the canal are all built so as to givetwo clear openings of ft. each, and the minimumheight is ft. above the water-level. The masonry works include the seven locks ; twodouble-track railroad bridges ; a road bridge in the marshesof the Oder ; a bridge at Fiirstemburg carrying a highvirayroad and a steam tramway ; 16 highway bridges, each14 8 ft. in width ; a bridge and automatic guard-gate in-tended to close the canal in c
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
