Canadian National Railways construction, betterments, etc.

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Irondale Subdivision bridges.—We are officially advised that the Board of Railway Commissioners has approved of the rebuilding of four bridges crossing the Burnt River, Irondale Subdivision, Ottawa Division, Northern Ontario District, Central Region. Following are particulars of the present bridges which were built about 30 years ago, and of the new ones.

Mile 35.4, timber trestle 30 ft. long, resting on stone filled cribs, to be replaced by 50 ft. deck plate girder, resting on 2 concrete abutments.

Mile 36.7, timber trestle 70 ft. long, resting on stone filled cribs, to be replaced by a 58 ft. deck plate girder, resting on 2 concrete abutments.

Mile 37.1, timber trestle 65 ft. long, resting on stone filled cribs, to be replaced by one 50 ft. deck plate girder span, with a 13 ft. approach span, resting on 2 concrete abutments and one concrete pier.

Mile 41.1, timber trestle 90 ft. long, to be replaced by one 60 ft. deck plate girder span, and one 13 ft. beam span resting on 2 concrete abutments and a concrete pier.

Railways: C.N.Rys.

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