Infra[un]structured is back with a new episode that puts tunnels under the spotlight.

This kind of infrastructure can transform the connectivity of communities and requires impressive feats of engineering.

Charlotte is joined by Malcolm Orford, Deputy Head of Development at the Lower Thames Crossing. Having previously worked as the Deputy Delivery Manager for London's new super sewer, Thames Tideway, there isn't much this man doesn't know about tunnels.

Also representing the Young Professionals Panel is Henry Metcalf, an engineer who has worked on a number of major transport projects.