National Highways' scheme upgrading an 8.7-mile stretch of the A30 in Cornwall from single to dual carriageway, including new bridges and a green bridge. Delivered by Costain.
Wentworth supported Costain and Keltbray on the A30 upgrade through structural and geotechnical engineering commissions. We helped the teams assess construction options across bridges and earthworks, connecting the permanent design with the ground conditions and methods used to deliver the road.
