Transactions . Fig. 4. -New York Subway: Excavation forStation at Mott Avenue. 120 MIXING AND ENGINEERING IN AMERICA AND CANADA. Sucli a concession must have greatly cheapened the cost of thework of the company, but the inhabitants along the route musthave suffered some disadvantage. In the busiest parts of the route,however, in the case of the deeper railways, tunnels were drivenand timbered (figs. 3 and 4), similar to driving a road in a question of foundations for the skyscrapers on routehas been a very difficult one, although simplified by the rocksubstrata, but it has been admira
Transactions . Fig. 4. -New York Subway: Excavation forStation at Mott Avenue. 120 MIXING AND ENGINEERING IN AMERICA AND CANADA. Sucli a concession must have greatly cheapened the cost of thework of the company, but the inhabitants along the route musthave suffered some disadvantage. In the busiest parts of the route,however, in the case of the deeper railways, tunnels were drivenand timbered (figs. 3 and 4), similar to driving a road in a question of foundations for the skyscrapers on routehas been a very difficult one, although simplified by the rocksubstrata, but it has been admirably surmounted. The steelstructures of these buildings enabled them to be supported bycarrying columns through the basement and Fig. 5.—New York Water Supply : Croton Dam. There are about fifty-two stations in all, and it is refreshingto learn that no advertizements are to be allowed, so as to give thepassenger at least a chance of finding out the name of the stationbefore the train again starts. During the two hours when traffic isheaviest, the express trains will be able to carry 72,000 persons,and the local trains 90,000 per hour. The express trains are accom-modated with a separate track over a large portion of the route. The generating station, it is claimed, will be capable of pro-ducing more electrical power than any other in the world, andwhen fully equipped will have cost £1,400,000. The power-house is 200 feet wide and 700 feet long. Atpresent there are nine engines of 8,000 to 10,000 horsepower, MIXING AXD ENGINEERING IN AMERICA AND CANADA. 121 which are directly connected to 5,000-kilowatt alternators, gener-ating energy at 11,000 volts. The total capacity of the completestation can safely be pl
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Keywords: ., bookcentury1800, booksubjectmechan, booksubjectmineralindustries
