. Building and repairing railways . Fig. 145. ELLIS BUMPING POST. which has been in use for about ten years on anumber of roads. BRIDGES. The selection of bridges must be largely leftto specialists and each stream crossed will haveto be considered separately; one stream must becrossed with the grade line high above floodwater; here a deck bridge can be used with ad-vantage, thus reducing the cost of piers. (SeeFigs. 149, 151 and 155.) At another crossing STANDARDS OF CONSTRUCTION, 243. Fig. 146. THROUGH PLATE GIRDER BRIDGE.

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901