Highways England are upgrading junction 9 of the M3 motorway, to alleviate traffic congestion at this busy interchange with the A34, A33, and local services into Winchester.

This improvement scheme includes replacement of existing structures, erection of new bridge works, and construction of two underpasses to accommodate a highly complex arrangement of proposed slip roads and reprofiled access routes.  The motorway and associated connections must remain fully-operational throughout the works.

We were appointed by contractor VolkerFitzpatrick at the Early Contractor Involvement stage, to provide temporary works designs, constructability advice, and demolition planning services for key existing and proposed structures along the route.

This role has now continued post-DCO to provide buildability advice, construction engineering and temporary works detailed design for Stage 4 and Stage 5.