Engineering and Contracting . Fig. 2—Forms for Cutwater Portion of IVIain Pier. south approach, on the Kentuckv side, of 600 ft. of via-duct. I Within the past year the north approach has been com-pleted and the substructure for the south approach fin-ished. At present work is progressing satisfactorily onlthe superstructure of the south approach. The work onthe piers for the main span, using the pneumatic processand Blaw steel forms, has been under way for about ayear. j The track on the channel span will be on a level grade113 ft. above low water with .3 per cent grades descend- July, 26, 19
Engineering and Contracting . Fig. 2—Forms for Cutwater Portion of IVIain Pier. south approach, on the Kentuckv side, of 600 ft. of via-duct. I Within the past year the north approach has been com-pleted and the substructure for the south approach fin-ished. At present work is progressing satisfactorily onlthe superstructure of the south approach. The work onthe piers for the main span, using the pneumatic processand Blaw steel forms, has been under way for about ayear. j The track on the channel span will be on a level grade113 ft. above low water with .3 per cent grades descend- July, 26, 1916Vol. XLVI. No. 4 ing on either side. The difference between high and lowwater stages is ft., providing a clear headroom underthe bridge at high water of 53 ft. The bridge will be5,700 ft. from end to end and 3,245 ft. long, exclusive ofthe approaches. Blaw Steel Forms are being used in the building of thepiers and the pedestals for the steel work of the ap-proaches. Over 90,000 cu. yd. of concrete and 120,000. Fig. 3—Completed Pier, Sliowing Conical Nose Forms. bbl. of cement will be used. There will be 19,000 tonsof steel in the bridge. The main channel pier, knownas Number 6, will be 105x65 ft. at the base and will be195 ft. high, requiring 15,000 cu. yd. of concrete. Thedistance from the base of this pier to the top of the mainchannel bridge span will be 317 ft.—higher than manyso-called skyscrapers. The plans of the Burlington Railroad and the Nash-ville, Chattanooga & St. Louis Railroad in the prosecutionof this work, also contemplate the building of extensiveyards on the Kentucky side of the river, and all told, with-in the next two years there will have been expended inthis undertaking approximately $6,000,000, which includesthe bridge and the construction of a 12-mile line of double-track railroad from a point near Paducah to the bridge,and which line will form the connection with the Nash-ville, Chattanooga & St. Louis Railway at Paducah, theconnection wit
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