Canadian engineer . work by meansof a tramway t,ooo ft. long. Derricks were attached to oldbridge and two derrick boats used also. Material for piers Nos. 8 to 14 inclusive, was deliveredto each pier from the south shore by means of scows and atug. A large material yard with the necessary switchingtracks connecting with main line and buildings builton south shore and a temporary deck built also. Power house containing compressors, boilers, pumps anddynamo, was located on south shore. Air line was laid onold bridge. The contractors for the substructure used the followingplant on the job:
Canadian engineer . work by meansof a tramway t,ooo ft. long. Derricks were attached to oldbridge and two derrick boats used also. Material for piers Nos. 8 to 14 inclusive, was deliveredto each pier from the south shore by means of scows and atug. A large material yard with the necessary switchingtracks connecting with main line and buildings builton south shore and a temporary deck built also. Power house containing compressors, boilers, pumps anddynamo, was located on south shore. Air line was laid onold bridge. The contractors for the substructure used the followingplant on the job: 2 derrick scows, i concrete mixing scow,7 material scows, i tug, 12 hoisting engines, 350 boilers,2 concrete mixers, 12 derricks, 3 compressors, besides pumps,dynamo, etc. Work was commenced in July, igio, and finished De-cember ist, 1911. The great difficulty in doing this work was principallyin building and sinking caissons, and in moving scows, rowboats and tugs around in the swift lo-mile current. The cur-. Slnking a Pneumatic Caisson at Down-stream End ofOne of Channel Piers. rent was not uniform as the obstructions in the river madeby the old piers produced a series of eddys, cross-currentsanid whirlpools. Even in deep water there were a lot ofboulders lying near the surface. Operating floating equip-ment around in such a locality was an operation fraught withdanger to both life and property. The contract for the new substructure of the bridge wasexecuted by The Foundation Company, Limited, of Montreal,under the supervision of Mr. J. M. R. Fairbairn, assistantchief engineer of the Canadian Pacific Railway. Mr. J. was resident engineer on the work. l62 THE CANADIAN ENGINEER Volume 22. McGILL UNIVERSITY, COURSES IN THE FACULTY OF APPLIED SCIENCE. By E. BROWN, , M. Eng., Professor of Applied Mechanics and Hydraulics, McCill University. The name of McGill University is known throughout theworld, and not a little of the prestige of the city of Montrealis due
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishertoron, bookyear1893
