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Inveraray Castle Estate, Garron Bridge

Road Bridge (Period Unassigned)

Site Name Inveraray Castle Estate, Garron Bridge

Classification Road Bridge (Period Unassigned)

Alternative Name(s) Shira Bridge; Gearr Abhainn Bridge; Drochaid Gearr-abhainn; Glen Shira; Inveraray Castle Policies

Canmore ID 23633

Site Number NN11SW 10

NGR NN 11395 10097

Datum OSGB36 - NGR


Ordnance Survey licence number 100057073. All rights reserved.
Canmore Disclaimer. © Copyright and database right 2019.

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Administrative Areas

  • Council Argyll And Bute
  • Parish Inveraray
  • Former Region Strathclyde
  • Former District Argyll And Bute
  • Former County Argyll

Archaeology Notes

NN11SW 10.00 11395 10097

NN11SW 10.01 NN 11342 10134 Lodge

NN11SW 10.01 NN 11357 10123 Screen Wall

See also NN11SW 14 (Military Road MR7).

For successor and present bridge (NN 11424 10149), see NN11SW 25.

Drochaid Gearr-Abhainn [NAT]

OS 1:10,000 map, 1976.

Garron Lodge and screen wall by Robert Mylne, Architect, 1775-1776.

Garron Bridge by Robert Morris, Architect, 1747.


W.Schomberg Scott Photograph Collection, Acc no.1997/39.

(Undated) information in NMRS.

This is a bridge over the Gearr Abhainn on the line of the old road.

W Taylor 1976.

(Location cited as NN 114 101). Garron Bridge, 1775, architect Robert Mylne. A large single segmental arch, with steeply humped carriageway. The parapet is balustraded, and there are terminals with ball finials. A handsome and unusually ornate bridge.

J R Hume 1977.

Excavations [were] carried out at the request of HS to determine if the original profile of the bridge survived and to examine the extrados of the arch. Six post-1900 road surfaces and one late-Victorian road surface indicating levelling out of the bridge's profile and surviving original metalled surface in excellent condition indicating the original hump-back profile of the bridge.

Sponsor: Scottish Office Roads Directorate.

F Baker 1993.

This bridges carries the former line of the A83(T) public road over the Gearr Abhainn at the upper end of Loch Shira. This road here incorporates part of the military road MR7, for which see NN11SW 14.

The location assigned to this record defines the approximate midpoint of the structure. The available map evidence indicates that it extends from NN c. 11372 10109 to NN c. 11419 10084.

Information from RCAHMS (RJCM), 18 May 2006.


Construction (1748)

Designed for the Board of Ordnance by Roger Morris, overseer John Adam

Photographic Survey (1962)

Photographic survey of buildings on the Inveraray Castle Estate and in and around Inveraray, Argyll by the Scottish National Buildings Record in 1962

Project (2007)

This project was undertaken to input site information listed in 'Civil Engineering heritage: Scotland - Highlands and Islands' by R Paxton and J Shipway, 2007.

Publication Account (2007)

A handsome single-span segmental arch bridge of about 40 ft span over the Garron about 2 miles north-east of Inveraray. It was designed for the Board of Ordnance by Roger Morris, overseer John Adam, and built in 1748. It is strongly ornamented, with masonry baluster parapets leading to solid work at the crown, pronounced shaped abutments on the elevations surmounted by masonry globes and a denticulate string course. The bridge has been bypassed on its north side by a modern road bridge which affords a good view of its predecessor.

R Paxton and Jim Shipway 2007b

Reproduced from 'Civil Engineering heritage: Scotland - Highlands and Islands' with kind permission from Thomas Telford Publishers.

Standing Building Recording (August 2008 - March 2009)

NN 1139 1009 Grade A listed and scheduled bridge by Roger Morris and William Adam, dating to the 1740s, with

subsequent modifications. A programme of works was carried out, August 2008–March 2009, in conjunction with a conservation architect’s appraisal in order to inform the future conservation and repair of the bridge. Works involved general survey drawings, a detailed record of the parapets and an analysis of its evolution.

The 18th-century structure was successively raised between the late 19th and mid 20th centuries, works to the fabric, particularly the parapets, being closely related to the series of road raisings recorded by evaluation in 1993. Much historic graffiti was recorded including many names of 18th- and 19th-century date, but more unusually at least four ship carvings were identified, two possibly of the Loch Fyne skiff type, the third a very obscured two- or three-masted vessel, and the fourth a stylised representation only (Alan Braby, pers comm); multiple masons’ marks were also recorded.

Archive: FAS (currently), RCAHMS (intended). Report and drawings: RCAHMS

Funder: Scotland TranServ

Fiona Baker, Tom Addyman, Jen Austin, Rick Gallie, Amanda Gow, Kenneth Macfadyen, Tanja Romankiewicz and Sue Whittle – Firat Archaeological Services and Addyman Archaeology/Simpson and Brown Architects


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