M3 Junction 9 Improvement Project

This project involves improvements to Junction 9 of the M3 motorway, located in Winchester, to enhance traffic flow and safety. The junction currently experiences heavy traffic, leading to long delays. The proposed changes aim to create free-flowing connections between the M3 and A34 in both directions. Key construction elements include widening the junction, adding two new gyratory bridges to increase the M3 from three lanes to four, and improving facilities for non-motorized users, such as pedestrians and cyclists. Additional works will include the construction of two underpasses for the M3 and A34, a pedestrian subway, multiple gantries, a footbridge over the River Itchen, and various site-wide installations for communications and vehicle restraint barriers. Suppliers are invited to provide, install, and test sprayed concrete for the underpasses as part of this improvement scheme.