Here are some more photos of my adventure into the bowels of the Clyde Tunnel.
This is the chamber below the plant room, situated above the North Side of the tunnel. Big metal building behind the control room. Access is via a chamber cover which has to be lifted using a crane! Ladders down to a platform with a small railing on each side which leads to a vertical shaft for cables and services.
This picture is the bottom of one of those shafts. Access from the pedestrian tunnel.
Final picture is of the bottom of the tunnel bore looking to the South. The roadway is above.
Very interesting if scary day. None of the service lighting was working that day so we were in pitch black with one shitty wee torch between 6 of us! Health and Safety????
One interesting fact. The tunnel controller told me that the tide line near the middle of the pedestrian tunnels are where the water gets to in a sudden downpour when the pumps can't cope! Apparently it gets to around 5 feet in 10 minutes! All the roadways drain into the pedestrian tunnels and then into a sump where it's pumped back to the river.
Moral? Don't walk in it when it's raining.