Mersey Tunnel trip

Went along with fellow explorers to have tour on the mersey tunnel, was a very intresting trip, they went through the history and the making of the tunnel before being taken on to see the fans, the fans for the tunnels air intake and exhaust are 28 feet in diamiter each! which is one big fan, and there are 5 of them in total! here are some pics from the trip:-

air exhaust fan covered in soot from car exhausts

turning exhaust fan.

the above fan is from the air intake, its a clean room as they take the air from outside

old cable supports, they used to have 500 mile of the big copper cables down here but now they use small fibre optics!

this is under the car way, its used as an escape route, runs the lenght of the tunnel was original going to be used for trams!