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Civil Engineering heritage: Highland and Islands
Date 2007
Event ID 610373
Category Descriptive Accounts
Type Publication Account
Permalink http://canmore.org.uk/event/610373
At the west end of Dunardry locks is a horizontally retractable bridge which moves on rails and cantilevers out over the canal. Its deck is of timber 9 ft wide and a hinged timber ramp on the shoreward end spans between the access road and bridge deck.
When the bridge is to be opened, the ramp is first raised to a horizontal position allowing the bridge to run freely on the rails. The rails are 10 ft 8 1/2 in. apart and the bridge spans 23 ft 7 in. over the canal. The main beams are 14 in. by 7 in. timbers and two light iron towers 9 ft high carry tie rods 1 in. diameter which radiate to the main span and anchor arm.
The maker is unknown but the bridge was erected in 1900 replacing a turn bridge, possibly one of Gibb’s iron bridges of 1817, which had developed foundation defects.
R Paxton and Jim Shipway 2007b
Reproduced from 'Civil Engineering heritage: Scotland - Highlands and Islands' with kind permission from Thomas Telford Publishers.
