Cairngorm road bridge to alleviate military road pressure
April 27 2020
An A-listed road bridge in the Cairngorm National Park is to be bypassed with a new road and crossing to help alleviate vehicle damage to the stone rubble structure.
As such a new Gairnshiel Bridge is proposed to be built across the River Gairn, employing a low profile design of reinforced concrete abutments clad in matching locally sourced granite with steel beams supporting a single-carriage road deck.
Detailing their approach Moxon Architects wrote: "Geometrically the bridge is defined by three key considerations: Firstly the river, which necessitates a single span crossing with a slight pre-camber.
"Secondly the requirement to maintain a slender profile in elevation. This is achieved by tapering the cross-section of the lower portion of the structure, delivering the necessary structural performance whilst making the construction depth appear thinner than it is.
"Finally the desire to create a form which balances the robust materiality of local masonry construction (as seen at the existing historic structure) with slimline, bold elements and material selection which gives the new bridge a distinct point of difference from the old."
A steeply humped single arch bridge was built in 1749 by major William Caulfield as part of a military road linking Blairgowrie to Fort George but has suffered recurring damage from increasing vehicle use.
Back to April 2020
Like us on Facebook
Become a fan and share
Features & Reports
For more information from the industry visit our Features & Reports section.