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A number of high vehicles have struck the bridge since its construction in 1968, most recently in September last year when a lorry being carried on a flatbed trailer smashed into the bridge, dropping the lorry onto the carriageway and causing severe disruption on one of Scotland's busiest trunk roads.
Transport Scotland is investing in a significant programme of works which will see the entire bridge raised by 150mm, installation of a new solid central pier, new safety barriers and parapets. The whole structure will also be repainted, straightened, strengthened and waterproofed.
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Raising the bridge in this way will bring it into line both with current standards and other bridges along the M8.
The work is due to commence on Friday, July 17 and is scheduled to last eight weeks.
Andrew Brodie, Senior Engineer at Transport Scotland said: "This is the first major overhaul of Arkleston Bridge in over 40 years and the work we do now should ensure it continues to operate safely for many years to come.
"Raising the whole bridge will help prevent the types of collisions which have occurred in the past and have caused damage to the bridge beams.
"This is a major programme of works which will bring long term benefits for road users through an anticipated reduction in disruption."
Operating company Amey will carry out the works on behalf of Transport Scotland and M8 road users are advised to be aware of traffic management measures which will be introduced for the eight week duration of the works.
Colin Mackenzie, Amey's unit manager for south west Scotland said: "Due to the nature of the works taking place on Arkleston Bridge we have worked closely with the local authorities to minimise disruption throughout the eight week scheme.
"The work is scheduled to largely coincide with the school holidays to further reduce any disturbance to commuters using this particular route."
(GK/JM)
