Structural Engineering Slide Library

Fixed arches: historic

	Image-GoddenB54 Craigellachie Bridge over the River Spey. An historic bridge, being the first such iron bridge to be built by Telford in 1815. For other bridges by Telford, see GoddenB15 and Godden Set C. Telford designed a 600 ft. span cast iron bridge to replace the Old London Bridge, but the design was considered too daring and was rejected. (Scotland)
	Image-GoddenB55 Craigellachie Bridge over the River Spey. Close-up of arch rib. Arches are 150 ft. cast iron ribs. Bridge originally had cruciform section cast iron spandrel members. In 1964 the bridge was renovated using original arch ribs but replacing spandrel members in steel with same sections and detailing. (Scotland)
	Image-GoddenB56 Eads Bridge, Mississippi River. One of the first arch bridges to be made in steel. Opened in 1874, the bridge consists of three 500 ft spans using shallow segmental profile. This pioneering project imposed unprecedented standards on the quality of steel used in construction. (St.Louis, Missouri)
	Image-GoddenB57 Eads Bridge, Mississippi River (1874). Abutment detail. The chords of the arches are tubular steel, not only made to Eads' high technical specifications, but individually tested in a machine of his design before being installed in the bridge. This care in construction has resulted in the bridge's continued use to the present in spite of today's heavier highway loading. (St. Louis, Missouri)
	Image-GoddenB58 Westminster Bridge. Built in 1863, this bridge replaced a 1750 bridge consisting of 15 stone arches. The present arch bridge consists of seven spans. The bridge is 85 ft. wide and has a total length of 1160 ft. (London, England)
	Image-GoddenB59 Westminster Bridge. Detail of pier. Abutments and piers are supported on timber piles driven into the London clay. The fixed arches are made of cast iron. (London, England)

Set B: Arch Structures