The Pamphlet Collection of Sir Robert Stout: Volume 50
Lecture XI
Lecture XI.
Classification of Iron Bridges.— Cast iron arches: Coalbrook Dale bridge, 1779—Sunderland bridge, 1796—Telford's bridge over the Severn—Southwark bridge—Provision for expansion—Severn Valley bridge—Trent bridge, near Nottingham—American cast iron tubular arched bridges—Aqueduct bridge at Washington—Cast iron arched bridge at Philadelphia.— Cast iron girder bridges: Much used from 1845 to 1850.— Wrought iron boiler-plate girders.—Wrought iron arches: New Westminster bridge—Victoria bridge; difference in principle of construction in the first and second portions of this bridge—St. Louis bridge, built 1874 with arched steel tubes—Erection of the St. Louis bridge without scaffolding—Saltash bridge over the Tamar, 1859—Wylam bridge, 1876, built with the roadway suspended from curved trusses.— American trussed bridges: Leading principles of construction—Cincinatti bridge over the Ohio, 515 feet span—Description of mode of erection—Kentucky River bridge, three spans of 375 feet each, built without scaffolding—Mode of erection.— Suspension bridges: Different systems of construction—English and American practice.