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Crinan Canal, Dunardry Locks, Dunardry Bridge
Bridge (Period Unassigned)
Site Name Crinan Canal, Dunardry Locks, Dunardry Bridge
Classification Bridge (Period Unassigned)
Alternative Name(s) Dunardry, Lock 11, Rolling Bridge, Dunnardry Locks
Canmore ID 39598
Site Number NR89SW 40.01
NGR NR 81993 91206
Datum OSGB36 - NGR
Permalink http://canmore.org.uk/site/39598
- Council Argyll And Bute
- Parish North Knapdale
- Former Region Strathclyde
- Former District Argyll And Bute
- Former County Argyll
NR89SW 40.01 81993 91206 (Formerly LIN 541).
Dunnardry Locks [NAT] (centred NR 8196 9116)
OS 1:10,000 map, 1989.
Swing-bridge [NAT]
OS (GIS) AIB, June 2006.
Location formerly entered as NR 8199 9120.
As the foundations of the chamber of Lock No. 11 (NR89SW 40.05) were evidently incapable of supporting the weight of a conventional swing-bridge, this hand-operated rolling cantilever-bridge was installed in 1900.
RCAHMS 1992.
This hand-operated rolling bridge replaced a swing bridge in 1900. The swing bridge was considered too heavy for its setting.
Information from J R Hume, Scottish Cultural Resource Access Network caption information, 19 May 2000.
This bridge is clearly visible on the 1st edition of the OS 6-inch map (Argyllshire 1873, sheet clx), is marked as a swing bridge on the 2nd edition of the OS 6-inch map (Argyllshire 1900, sheet clxNE), and is clearly shown on the current edition of the OS 1:10000 map (1989) and on the OS 1:10000 raster map (ND).
Information from RCAHMS (MD) 21 June 2001.
This bridge carries a footpath across the chamber of Dunadry Lock no. 11. It is depicted, but not noted, on the 1989 edition of the OS 1:10,000 map.
Information from RCAHMS (RJCM), 1 June 2006.
For list of related sites, see NR89SW 40.00 Crinan Canal.
Publication Account (2007)
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.
