. The railroad and engineering journal . Fig. MORANDE BRIDGE OVER-THE RHONE. being about 45 ft. below low water. The arches at thecenter have a clear height of 26 ft. above high water. Each span is composed of eight iron trusses, spaced between centers, except the two outside trusses, whichare ft. from the adjoining inside truss. The totalwidth of the bridge is 65 6 ft., divided into a roadway 36ft. in width and two sidewalks, each ft. wide. Thecentral arch has a span of 221 ft., a rise of ft., and aradius of ft.; the two side arches have each a spanof 210 ft.
. The railroad and engineering journal . Fig. MORANDE BRIDGE OVER-THE RHONE. being about 45 ft. below low water. The arches at thecenter have a clear height of 26 ft. above high water. Each span is composed of eight iron trusses, spaced between centers, except the two outside trusses, whichare ft. from the adjoining inside truss. The totalwidth of the bridge is 65 6 ft., divided into a roadway 36ft. in width and two sidewalks, each ft. wide. Thecentral arch has a span of 221 ft., a rise of ft., and aradius of ft.; the two side arches have each a spanof 210 ft., a rise of 13 ft., and a radius of ft. The I river and an obstruction to the free passage of the waterin times of flood. The bridge, nevertheless, had donegood service and had a long life for a wooden structure, i THE WHALE-BACK STEAMER. The ■■ whale-back steamer Charles W. Wetmore,built by the American Barge Company, at Duluth, Minn.,has succeeded in making a voyage across the Atlantic and. Fig. 2. division of the total space between the arches was calcu-lated in such a way as to equalize the pressure on the piersat an average temperature and the strains on the adjoin-ing arches. The profile of the bridge roadway is an arcof a circle of 17,075 (I. radius, and the grade at the pointwhere it meets the quay on either side is per arch trusses rest at either end upon inclined bed-plates of iron, placed on suital)le beds on pier or abutment. The bridge carries one of the chief avenues of the city,on which there is a large traffic, including many heavywagons. The water and gas-pipes are suspended beneaththe roadway. Fig. 2 shows the old bridge which is replaced by thenew structure. This bridge was built by the ArchitectMorande in 1774, and was a wooden structure, consistingof 17 spans, varying from 35 ft. to 45 ft. These spans back in spite of some unfavorable predictions. The Wet-more, after a trip tbrough the Lakes and down the , left Montreal wit
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
