. Railroad structures and estimates . PQ o3 Pk COCO do 132 PILE AND TRESTLE BRIDGES. ,5; S3I0H. *wa PIO 3ii|ix»x s X 8^ « T3 oO o Fig. 36 illustrates the ballasted floor for pile and trestle bridgesas adopted by the Union Pacific Railroad, with bents 15 ft. cen-ters, six piles or posts to the bent. PILE TRESTLE BALLASTED DECK. 133 Ballasted-Deck Pile Trestle, Kansas City S. Ry. — The trestledesign, Fig. 36a, is a good example of modern practice in thistype of structure, described in Eng. News, Jan. 16, over 22 ft. in height have horizontal sash braces 11 with swaybraci
. Railroad structures and estimates . PQ o3 Pk COCO do 132 PILE AND TRESTLE BRIDGES. ,5; S3I0H. *wa PIO 3ii|ix»x s X 8^ « T3 oO o Fig. 36 illustrates the ballasted floor for pile and trestle bridgesas adopted by the Union Pacific Railroad, with bents 15 ft. cen-ters, six piles or posts to the bent. PILE TRESTLE BALLASTED DECK. 133 Ballasted-Deck Pile Trestle, Kansas City S. Ry. — The trestledesign, Fig. 36a, is a good example of modern practice in thistype of structure, described in Eng. News, Jan. 16, over 22 ft. in height have horizontal sash braces 11 with swaybracing between them. Upon the sash bracesare bolted girts or horizontal longitudinal timbers. Diagonallongitudinal braces are fitted in each panel, except in those bot-tom panels where they might form an obstruction to the freepassage of drift. The end bent has five piles, and back of the cap and stringersare three 6 X 10-in. header planks to hold the end of the trestles having an odd number of panels, one end panel has allits stringers 15 ft. long. The caps and stringers are siz
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