Modular Bridging System

Bishopthorpe South Bridge is located on the A64 dual carriageway carrying traffic over the River Ouse.

The aim was to install a new bridge joint with a 40 year service life, whilst minimising disturbance to the travelling public during construction i.e. maintaining two lanes of traffic across the bridge during the day.

During the design traffic management solutions (full closure with diversions and contraflow) were identified as being a practical means of controlling traffic to allow the replacement of the joint. However this would cause significant disruption to customers (the road user), modelled at 60-80 minute delays daily.

Therefore the designers worked with the supply chain to look at inventive alternative solutions, which would provide both a safe means of access to the joint during night time works whilst minimising disruption to road users during the day.

Our creative, alternative traffic management solution utilised the innovative ‘Maurer Modular Bridging System’ (MMBS) drawbridge ramp, which significantly reduced delays to the travelling public. MMBS provided temporary protection to the bridge joint when works were not in progress, allowing traffic to pass over the joint. This resulted in maximum delays of only six minutes for road users.

The solution was a complete success, and has received praise for the excellent co-ordination of the works whilst causing minimal disruption to road users and nearby residents. Feedback from the local authority and Police was extremely positive.

This was a national first and has already been used on at least two further sites around the country.

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Entry submitted by Area 12 A-one+ Integrated Highway Services

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