Oblique aerial view of Avon Aqueduct, Union Canal, from NE.

Description Oblique aerial view of Avon Aqueduct, Union Canal, from NE.

Date 1/9/1994

Collection RCAHMS Aerial Photography

Catalogue Number SC 796881

Category On-line Digital Images

Copy of C 40341 CN

Scope and Content Aerial view, Avon Aqueduct, Union Canal, West Lothian, from north-east This shows the north face of Avon Aqueduct, built between 1818 and 1822, which was designed by Baird with advice from Thomas Telford. The 12-arched aqueduct, 247m in length and about 26m in maximum height, spans the River Avon and the surrounding valley. This aqueduct is the second largest in Britain behind the Telford-designed Pontcysyllte Aqueduct in Wales. The water is carried on an iron trough over the span which means that the aqueduct does not have to counter the water's outward pressure. The stone pillars are therefore hollow and internally braced, which leads to a structure which is lighter and more elegant. The government authorised the construction of the Union Canal in 1817 and appointed Hugh Baird (1770-1827) as the chief engineer. The main purpose of the canal was to provide an economical route for the transportation of coal and lime between Edinburgh and Glasgow via the Forth & Clyde Canal (1768-90). The 51km-long canal was opened in 1822 at a cost of £461,760, almost double the estimate, and it ran from Lock 16 at Camelon, Falkirk to Fountainbridge, Edinburgh. Except where the two canals are joined at Falkirk, the canal was built with no locks because it followed the contours of the hills. The Union Canal was closed in 1965, two years after the Forth & Clyde Canal, and the construction of new roads meant that it was impossible for boats to travel along the full length of these watercourses. However, the £84.5m Millennium Link project enabled both canals to reopen in 2002. Source: RCAHMS contribution to SCRAN.

Permalink http://canmore.org.uk/collection/796881

File Format (TIF) Tagged Image File Format bitmap