Engineering and Contracting . and surfacelines and extensions of the surface lines, principally asfeeders in the outlying districts to the rapid transit sys-tem developed in the first two periods. Estimated cost,including overheard, $11,302,000. The grand total cash requirements for the above sched-ules of the three construction periods are $96,371,300. The final report of the Commission, which consists ofWilliam Barclay Parsons, and Robert Ridgeway of NewYork, and Bion J. Arnold, of Chicago, will be submittedto the City Council some time this month. The figuresgiven in this article are taken
Engineering and Contracting . and surfacelines and extensions of the surface lines, principally asfeeders in the outlying districts to the rapid transit sys-tem developed in the first two periods. Estimated cost,including overheard, $11,302,000. The grand total cash requirements for the above sched-ules of the three construction periods are $96,371,300. The final report of the Commission, which consists ofWilliam Barclay Parsons, and Robert Ridgeway of NewYork, and Bion J. Arnold, of Chicago, will be submittedto the City Council some time this month. The figuresgiven in this article are taken from a partial report madepublic early in December. I MACHINE SPREADING IN TRACK ELEVATIONWORK. The Illinois Central R. R. at present has some very in-teresting track elevation operations under way between96th St. and 120th St. in the city of Chicago. The workprovides for the elevation of six tracks to a height of 14to 16 ft. This particular portion of the general track ele-vation scheme of the railway involves the placing of. views of Spreader and Track Elevation Work of Illinois Central R. R. between 90th St. and 120th Chicago. 4. Add a third track to Ravenswood branch of theNorthwestern Elevated and eliminate grade crossing atClark St., $1,273,000. 5. Add a fourth track to the South Side Elevated fromForty-third St. to Sixty-third St., $1,124,700. 6. Add a fourth track to the Metropolitan Elevated fromLake St. to Robey St., $787,750. 7. Add a fourth track to the Metropolitan Elevated fromMarshfield Ave. station to Twentieth St., $724,500. 8. Add a third track to Logan Square branch fromRobey St. to Logan Square, $715,300. 9. Add a third track on the Oak Park Elevated fromCrawford Ave. to Laramie Ave., $402,500. some 700,000 cu. yd. of sand fill, requiring the use of 9,000ft. of trestle over streets and 11,500 ft. of constructiontrestle. The filling material is obtained at Dune Park, Ind., andis hauled to the work in cars, and then plowed off the carson the trestle. Each
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