Bridges presentation
It served as the prototype
for later ones, such as the Viaduc de la Bouble (1871), a series of lattice girders on cast-iron towers
flared at the bottom, built under the direction of Wilhelm Nordling. It was 1296ft (395m) long by
216ft (66m) high on the Commentry-Gannett line in France.
Figure 15 Kinzua Viaduct (1900), located on the Bradford Branch
in a remote region near the town of Kushequa in north-west
Figure 14 Portage Viaduct (1852) (USA),
Pennsylvania (USA), was originally constriucted in 1882 by the
photographed shortly after it was completed for
New York & Erie Railroad to service lumber mills in this lush,
this stereoscopic view, was the wonder of visiting
forested corner of Pennsylvania
annaabi.ee 
