. The street railway review . hetrack will be in perfect condition. All the steel structures on the road gned for a live load of two 143-ton Coopers E-40 locomotives followed by a uniformlydistributed load of 4,000 lb. per lineal foot. The steel bridges are ofthe deck type wherever the conditions permitted, and elsewhere arethrough girder br The principal steel bridges arc as follow- Des Plaines River,double track through girder, two 100-ft. span- East branch of DuRiver, double track deck, one span. West branch ofDu Page River, single track through girder. .pan, in con-junction with a
. The street railway review . hetrack will be in perfect condition. All the steel structures on the road gned for a live load of two 143-ton Coopers E-40 locomotives followed by a uniformlydistributed load of 4,000 lb. per lineal foot. The steel bridges are ofthe deck type wherever the conditions permitted, and elsewhere arethrough girder br The principal steel bridges arc as follow- Des Plaines River,double track through girder, two 100-ft. span- East branch of DuRiver, double track deck, one span. West branch ofDu Page River, single track through girder. .pan, in con-junction with a 2-> deck -pan. Lombard highway cr frig double track deck, one ,?6-ft. span. At three other highway overhead-s are 45-ft through girder spans. The Elgin branch crossi Class A.—Portland cement, 1 part; sand, j pan-; -lone. 4 for arch sheeting; bridge seals and parapet walls. Class B.— Portland cement. 1 part; sand. ,* pari-; -lone. 6 for abutments, bench walls for arches, and retaining CROSSING FOR OVERHEAD Portland cement. I part; -and. 4 part-; -lone. 8 parts. Used for foundations and other work as directed by the engineer in charge. The foregoing proportions are by volume, one-fourlb barrel oi
Size: 2240px × 1115px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
