International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 590
weredelivered at the pile driver, but it is a very low average ofcost, the work being done by the firm of Winston Bros., ofMinneapolis, noted for their energy and excellence of plantequipment. In making approximate estimates of cost of piling andtrestles, when exact data are not available, the… … Fig. 557. driving, at the convenience of the contractor, though it isbetter to follow the driving closely with the caps andstringers. When a land driver is used, each bent must becut ofif and capped and timbers laid before the driver canadvance to the next bent. As soon as a bent of piles isready…
Railroad engineering
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