Engineering and Contracting . ne. An official report on the cause of thebreak and the general condition of the conduitis beini; prepared, at the instance of the propercity officials, by J. .\. Jamieson and P. W. The gist of that report will be pre-sented to our readers when it becomes avail-able for editorial use. Pending the receipt ofthe report mentioned we have prepared thefollowing statement relative to the failure ofthe conduit and to the methods employed inrepairing it. The present article is based oninfornation derived from various sources. Sectinn of Conduit.—Figure 1, herew
Engineering and Contracting . ne. An official report on the cause of thebreak and the general condition of the conduitis beini; prepared, at the instance of the propercity officials, by J. .\. Jamieson and P. W. The gist of that report will be pre-sented to our readers when it becomes avail-able for editorial use. Pending the receipt ofthe report mentioned we have prepared thefollowing statement relative to the failure ofthe conduit and to the methods employed inrepairing it. The present article is based oninfornation derived from various sources. Sectinn of Conduit.—Figure 1, herewith,shows a cross sectional view of the concreteconduit which failed. Figure 2 is a diagram-matic cross section showing the relative posi-tion of the old and new canals and the con-duit. The smaller canal shown in Fig. 2 was for-merly used to conduct the water supply of the•city from the St. Lawrence River. .Miout fiveyears ago the reinforced concrete ccnd nt wasbuilt and since then the work of enlarging Clinton WireCloth. ?flir^- Line of E^xcavatiori RocKS^HqrdCorfh i~ 0 -.— -?-,— J - i with Small Boulders, :.-•..-<! Tiiei, Fig. 1. A Typical Cross Section of Rein-forced Concrete Conduit, MontrealWater Supply System, Which FailedDec. 25, 1913. the first canal has been prosecuted at new canal is to furnish water for powerand industrial purposes. The primary causeof abandoning the old canal was iliat the waterit carried was exposed to serious contamina-tion. The old canal had a width at the waterline of 80 ft. and a depth of 8 ft. The oldcanal was widened to 140 ft. and its dcptliincreased to 14 ft. under a contract awardedin 1!)10. Work on the canal widening was be-gun in 1877, long before the enclosed concreteconduit was thought of, but a change in plansoon led to the cessation of excavation opera-tions and they were not resumed until afterthe concrete conduit was in use. As shown in Fig. 1 the cijnduit is of thehorseshoe type, the radius of the inver
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherchicago, bookyear19
