. Railway track and track work . ;!(■>>;•■ :•. •••■,-i::^r ■-V. • /■ Vi ••->t< 5%Z-y ^ib*<■-& M -48i- -x~/#r7^! !. 150- Gravel Ballast. Stone Ballast. Fig. 5.—New York, New Haven & Hartford Ry. the ends. Gravel ballast is level with the tops of the ties for 18 ins. at themiddle of each track, and then sloped to 2 ins. below top of tie at the ends. Itis 11 ins. thick at middle of four-track roadbed (12 ins. for double track), and16 ins. at the Box drains are placed at intervals to carry water from thecentral depressed drain or ditch in the ballast to the side ditches

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. Railway track and track work . ;!(■>>;•■ :•. •••■,-i::^r ■-V. • /■ Vi ••->t< 5%Z-y ^ib*<■-& M -48i- -x~/#r7^! !. 150- Gravel Ballast. Stone Ballast. Fig. 5.—New York, New Haven & Hartford Ry. the ends. Gravel ballast is level with the tops of the ties for 18 ins. at themiddle of each track, and then sloped to 2 ins. below top of tie at the ends. Itis 11 ins. thick at middle of four-track roadbed (12 ins. for double track), and16 ins. at the Box drains are placed at intervals to carry water from thecentral depressed drain or ditch in the ballast to the side ditches. With the ballast toe is 2 ft. 6 ins. from end of tie with gravel, and 2 ft. 8 ins. withstone. Balcimore & Ohio Ry. (Fig. 6).—The standard designs are made for threeclasses of track, according to the classification of the American Railway En- Sod 1 I H --,- /eV---- »->, H 66------>^24£U---57l--^l?k--40->\ j i i_

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