| January 1912, No. 167 | The Railway and Marine World (Toronto) | Page 20, col. 1 |
Grand Trunk Railway construction, betterments, etc.
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Richelieu River bridge.—The G.T.R. is renewing the bridge across the Richelieu River, near Lacolle, Que., formerly part of the Canada Atlantic Ry. The existing draw span is a steel structure 186 ft. over all, and is to be replaced by a new steel swing 260 ft. over all, having a capacity of E-50, ,loading. The new bridge will afford two channels of 97 ft. each, in the clear. The present pivot pier is octagonal in shape, and is of concrete on a grilled flooring resting upon plies. This pier is to be replaced by a new one, square in shape, and enlarged to meet the new conditions. The pier will be built solid from the river bed up. The rest piers at present are of concrete, supported on pile, but they are to 'be taken down and replaced by new concrete piers enlarged to meet the special circumstances. The present approaches to the draw on either aide are composed of pile bents for an aggregate length of 860 ft. This pile work is to be replaced by 12 deck plate girders resting on new concrete piers, which will be placed 60 ft. apart, centre to centre. The rail level at the bridge is to be raised 3 1/2 ft. to accommodate the new superstructure. The John S. Metcalf Co., Ltd., Montréal, has the contract for the substructure, at a cost of about $140,000. The superstructure is to be built and erected by the Dominion Bridge Co. This work is under the supervision of H. R. Safford, Chief Engineer of the G.T.R. system.