. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . <«G[ JKoFILE OF COXNAUGHT TUNNEL -^ND OLD INTERIOR OF THE C. P. R. pletion was three and a half years, whichwould end on Jan. 1, 1917. There was anallowance in extension of time of one dayfor ever\- ten feet of soft ground en-countered, which would require immediatetimbering. As there was some 1,660 such ground, the time limit of the con-tract was extended into June, 1917. The work completed up to Dec. 19, 1915,was as follows: 19,610 ft. of pioneer tun-
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . <«G[ JKoFILE OF COXNAUGHT TUNNEL -^ND OLD INTERIOR OF THE C. P. R. pletion was three and a half years, whichwould end on Jan. 1, 1917. There was anallowance in extension of time of one dayfor ever\- ten feet of soft ground en-countered, which would require immediatetimbering. As there was some 1,660 such ground, the time limit of the con-tract was extended into June, 1917. The work completed up to Dec. 19, 1915,was as follows: 19,610 ft. of pioneer tun-nel, 24,612 ft. of centre heading, 1,660 ftof earth tunnel and 14,342 ft. of tunnelenlargement in rock. At the same datethere remained to be driven 288 ft. ofcentre heading, 10,398 ft. of tunnel en-largement. A pioneer tunnel was driven entirelyoutside the regular section of the tunnel,and a centre heading was driven alongtle centre of the main tunnel. The func-tions of the pioneer tunnel were to pro-vide a means of transporting the materialfrom the heading to a point back of wherethe enlargement of the tunnel was beingmade, and to provide for the carr
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
