View of the South portal from the South at deck level, halfway through stone cleaning. Digital image of B 3351 CN.

Description View of the South portal from the South at deck level, halfway through stone cleaning. Digital image of B 3351 CN.

Date 29/8/1988

Collection Records of the Royal Commission on the Ancient and Historical Monuments of Scotland (RCAHMS), Edinbu

Catalogue Number SC 728409

Category On-line Digital Images

Copy of B 3351 CN

Scope and Content South portal from south, Forth Bridge, Edinburgh and Fife The Forth Bridge was built between 1883 and 1890 to designs by engineers Sir John Fowler (1817-98) and Sir Benjamin Baker (1840-1907) with Sir William Arrol (1839-1913) and Joseph Phillips as contractors. This massive steel railway viaduct features three double cantilevers connected by girders with a total span of 2.5 km. This shows the arched granite portal (a large gate or entrance) through which trains pass onto the bridge from the approach viaducts. Almost half of the stone has been cleaned, revealing its original colour which highlights the different textures of stone used. The hard granite stonework of the bridge requires very little maintenance due to its high quality construction, but some areas were sand-blasted clean in the late 1980s. The main stone piers are hollow, and weighted with stone and concrete to support the vast weight of the cantilevers at the outer ends. Source: RCAHMS contribution to SCRAN.

Permalink http://canmore.org.uk/collection/728409

File Format (TIF) Tagged Image File Format bitmap