It's part two of our M62 journey, we start where we left off last week in the Pennines where we find a large concrete bridge. The largest in the world.. at one point. There's also a dam and other exciting things like ash disposal sites? Sounds crap. But it isn't. In this series we aim to explore what our motorway network is hiding. As we drive along at 70mph..ish...we simply just wouldn't be aware of what we're missing. This series aims to uncover some of the hidden secrets our motorways have to offer.