. Building a railroad; a handbook devoted to a new, speedy and economical method of performing every operation from grading right-of-way to ballasting and maintaining track . 41 Building a Railroad. Driving Piling from Ground Level center to center. Tem-porary stringers canbe used to carrymachine over the pil-ing, the permanentstringers, ties and steellaid later in regularmanner, while theAmerican is busyfarther out on the case called to our attention was a 340 trestle to be filled in. It was built of 3pile bents, the two outside piles driven at a batterand 8x8 caps used.
. Building a railroad; a handbook devoted to a new, speedy and economical method of performing every operation from grading right-of-way to ballasting and maintaining track . 41 Building a Railroad. Driving Piling from Ground Level center to center. Tem-porary stringers canbe used to carrymachine over the pil-ing, the permanentstringers, ties and steellaid later in regularmanner, while theAmerican is busyfarther out on the case called to our attention was a 340 trestle to be filled in. It was built of 3pile bents, the two outside piles driven at a batterand 8x8 caps used. The trestle was 10 to 16 , piles 16 to 24 ft. long. The machine was downon the grade line on 12 ft. portable track sections,traveling over the trestle on temporary stringers ascompleted. The} averaged 8 to 9-12 ft. bents, or100 ft. of completed trestle per day. The piles wereall provided from dead heads and sinkers whichthe American fished out of the river. They used70 lb. steel for temporary stringers, underneathregular ties, and 70 lb. steel to pass the materialcars over to build up the grade, pulling the temporarysteel stringers out and lining up the track when fillreached sub-gra
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