. The railroad and engineering journal . nal. The necessity of a tunnel is shown by the immenseamount of traffic that is annually carried on across the St. ClairRiver in connection with the Grand Trunk Railway. Duringthe year ended June 30 last, 184,000 through cars and 13,500local cars were transferred by ferries here, making a total ofig7 500 cars that passed over that year. This is an average ofover 541 cars per day, including Sundays, or about carsper hour, which is equivalent to the crossing of a boat-load ofcars every 4S minutes. t^i THE RAILROAD AND [April, 189O. E The total cost o
. The railroad and engineering journal . nal. The necessity of a tunnel is shown by the immenseamount of traffic that is annually carried on across the St. ClairRiver in connection with the Grand Trunk Railway. Duringthe year ended June 30 last, 184,000 through cars and 13,500local cars were transferred by ferries here, making a total ofig7 500 cars that passed over that year. This is an average ofover 541 cars per day, including Sundays, or about carsper hour, which is equivalent to the crossing of a boat-load ofcars every 4S minutes. t^i THE RAILROAD AND [April, 189O. E The total cost of the tunnel is estimated at $2,500,000, ofwhich the company has been granted a subsidy of §375,000 bythe Dominion Government. The present pay-roll -averagesabout per month. It is expected that this great work will be completed by thelast of the year 1S90.—Report of Consul J. S. Farrar to the StaleDepartment. - A French Lighthouse.—The accompanying illustration,from Le Genie Civil, shows a lighthouse recently erected at the. extremity of the breal<water at Port Vendres. It stands in avery exposed position, .where high waves frequently break overit, and the intention was to combine strength of constructionwith the least possible resistance to the force of the waves. The lighthouse is supported on si,\ metallic columns arrangedin the form of a hexagon. These columns are 1450 m. (47.;6ft.) in height and are m. ( ft.) apart. Each column isformed of three parts ; the lower is m. ( in.) exteriordiameter, and is sunk 2 m. ( ft.) in the solid masonry whichforms the base of the tower. The middle section has the samediameter, but somewhat less thickness, and is joined with thelower one by means of a threaded sleeve. The upper part isjoined to the middle section in the same way, and is united atits upper end with the metal framework which forms the floorof the light-chamber or lantern. The beams supporting thelight-keepers room are carried on brackets
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
