. Railroad structures and estimates . ■p mJ(U8ECTIONEAR| OF STREET I AT CURB Fig. 16. Reinforced Concrete Subway, C. M. & St. P. Ry. I 82 REINFORCED CONCRETE SUBWAYS. Waterproofinjf. Fig. 17. Typical end elevation and cress section, of Carolina Florida St. Subways. Subways.—Memphis, Tenn. Tracks spaced 12| ft. c. to c. Four floor slabs per track, each6 ft. 2i in. by 23 ft. 2| in. Designed for Coopers Eo5 , 50 per cent of live load. Quantities per lin. ft. of subway: Slab floor system cu. jd. Abutments cu. yd. Center supports cu. yd. Total 10.
. Railroad structures and estimates . ■p mJ(U8ECTIONEAR| OF STREET I AT CURB Fig. 16. Reinforced Concrete Subway, C. M. & St. P. Ry. I 82 REINFORCED CONCRETE SUBWAYS. Waterproofinjf. Fig. 17. Typical end elevation and cress section, of Carolina Florida St. Subways. Subways.—Memphis, Tenn. Tracks spaced 12| ft. c. to c. Four floor slabs per track, each6 ft. 2i in. by 23 ft. 2| in. Designed for Coopers Eo5 , 50 per cent of live load. Quantities per lin. ft. of subway: Slab floor system cu. jd. Abutments cu. yd. Center supports cu. yd. Total 10. 59 cu. yd. Wing walls (right angle 20 ft. long), each cu. yd. Reinforcement of slabs 173 lb. per yd. Reinforcement of substructure 140 lb. per yd. All concrete 1 : 2 : 4. Fig. 17 shows a typical end elevation and section of the sub-ways at Florida St. and at Carolina Ave. except that the totalwidth between abutments on Carolina Ave. will be 65 ft. Thedesign is especially noteworthy on account of the extensive useof reinforced concrete and of the box tj^pe of abutments. Streetgrades on the subway approaches will be approximately 4 percent and the paving will be of vitrified brick on
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Keywords: ., bookcentury1900, bookdecade1910, bookidrailroadstructur00orrouof
