. Canadian engineer. /yiA y^orhm§ on fPipf operafes a^injf /4 Pipe Asrc/n^ // (7b»v/T n///j cone thus ^Kpvndin^ robber yJeetv If rubber does no^ fithole snt^/y *Yrapf Ofinfess to suit 03 i: jtio/Zon cone shrunM \on end of fJt Pipejnrh/cA f/tj orer/Pipe \Pvbber fiotched at Tophn recfffve cone 1 tluf screwed on end of I Pipe to/iotd Dubbtr 5leere ~ /2fp /m Thick i snu§ fit for / Pipe Fig. 3 — Details of Plug used for Deep Grouting. The new Civic Improvement League of Canada is hold-ingf a conference at Ottawa to-day, with representativespresent from all nine provinces and most of the large citie
. Canadian engineer. /yiA y^orhm§ on fPipf operafes a^injf /4 Pipe Asrc/n^ // (7b»v/T n///j cone thus ^Kpvndin^ robber yJeetv If rubber does no^ fithole snt^/y *Yrapf Ofinfess to suit 03 i: jtio/Zon cone shrunM \on end of fJt Pipejnrh/cA f/tj orer/Pipe \Pvbber fiotched at Tophn recfffve cone 1 tluf screwed on end of I Pipe to/iotd Dubbtr 5leere ~ /2fp /m Thick i snu§ fit for / Pipe Fig. 3 — Details of Plug used for Deep Grouting. The new Civic Improvement League of Canada is hold-ingf a conference at Ottawa to-day, with representativespresent from all nine provinces and most of the large John Willison is chairman. Questions of municipal ROv-ernmcnt and finance, public health, town planning, unemploy-ment, hoising, and local improvements, arc being dealtwith. January jo, 1916. THE CANADIAN ENGINEER ?55. I)I1U:CT=LIFT BRIDGE AT OTTAWA. By L. McLaren Hunter, , City Engineers Department, Ottawa. O provide Ottawa East with a street car service, a bridge with direct-lift span is being built over the Rideau Canal at Pretoria Avenue. The cost, 0,000, is divided equally between the Dominion Cioxernment and the city of Ottawa. The bridge consists oftwo 52-ft. 6-in. reinforcedconcrete arches and one 95-ft. steel lift span, makinga total length of 200 abutments. Thewidth is 56 ft. from railingto railing, the roadway be-ing 44 ft. wide, and each ofthe two sidewalks 6 ft. piling wasdriven, in 50-ft. lengths, fortiie foundation of the piles were tested toT7 tons per pile. A 1:3:5mixture is being used forthe abutments. The abut-ment walls are 7 ft. wide atthe base, iS in. at the the water line theabutments are being facedwith sandstone. The contract for the pierswas let to R. Brewster, ofOttawa. One abutment hasbeen completed and practi-cally al
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