This is the third and final episode of our three-part special looking at the delivery of megaprojects. In this episode we examine the lessons learned from two of the most iconic tunnelling projects of recent times: London’s Crossrail and New York’s Eas...

Our sister podcast Engineering Matters produced this three-part special looking at the delivery of megaprojects to mark its 100th episode. In this second episode, we look at how a client can assess the scale of the task of delivering an impossibly comp...

Megaprojects are among the most complex and challenging of society’s undertakings. Each is grand is scope and due to the scale, none are ever built twice. Although they leverage the resources and political will of a nation,

A career spent working on, teaching about, and investigating trenchless projects in Canada has given one geotechnical engineer decades of lessons and anecdotes to draw on. He now finds himself an Associate Professor in the Department of Civil and Envir...

The Thames Tunnel, an 11m wide, 6m high and 396m long tunnel cuts 23m under the river Thames when measured at high tide. It is the first known tunnel to be excavated under a navigable river. And most critically for today’s episode it is the first use o...

Set in the West Midlands county of Staffordshire is a former Royal Forest called Cannock Chase. It is part misty, secluded woodland and part undulating moorland. As you head up to the north of this Area of Outstanding Natural Beauty,

Kathmandu is set in a bowl valley in the foothills of the Himalayas. It has more heritage sites than any other city in the world and is the economic powerhouse for the developing nation of Nepal. It has a bustling society and an irreplaceable culture,

Right now companies around the world are competing in a global race to prove that a new transport revolution is just a few years away. Using high speed transit through low pressure tubes speeds of 1100km/hr per hour are theoretically possible,

There is something fishy going on in the Hagerbach Test Gallery, deep in the Glarus Alps in Switzerland. Today the former iron mine is a place of invention, where new underground technologies are explored, tried and tested.

Maintaining a tunnel requires many hours of dedicated work by highly skilled engineers. And as our network of tunnels expands, so does the maintenance demand. Asset owners and local authorities have been under pressure for years to find a cost-effectiv...