dom and the vent hole at copthall 

hello, short video looking at the dom position its nose is over land, and the vent hole at copthall , vent number 1 or Barry is looking very smart , looks almost complete, now lets cover it all in mud...... going back soon for a closer er look at it, and the dom in a few days, Tuesday yes Tuesday will be my next visit and will post up some more detailed shots of IT, ohhh just noticed the tunnel has a slight curve as well, guess it sets up the train for a nice long right hander towards the chiltern south porthole , nice one