| September 1923, No. 307 | Canadian Railway and Marine World (Toronto) | Page 434, col. 2 |
Canadian National Railways construction, betterments, etc.
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Southwest Ontario District highway bridges.—we are advised in reference to the 6 overhead highway bridges at Main St., Harrisburg; Given Rd, Beverley Tp.; Concession 5 and 6 Innisfill Tp; between lots 24 and 25 Wilmot Tp; Queen St., Newmarket; and in Concession 1, north of Governor's Rd., Beverley Tp., that they are of wood construction on frame or pile bents, and are to be replaced by permanent material as part of the yearly programme of betterments. The new structures will consist of small concrete abutments, with dwarf piers located close to the main tracks, to be carried below the frost line. The superstructures will consist of 3 spans supported by steel bents, with an approach span on each side taking support on the concrete abutments. The roadways will be rebuilt for 20 ft. horizontal clearance, and in some instances the floor system will be extended so as to provide for a sidewalk. With the exception of steel bents and rolled beams these bridges will be built from stock material and designed to carry trucks of 15 tons capacity. All the work will be done by the railway's forces.
Railways: C.N.Rys.