Talk:Loading gauge
I was under the impression that the floor of Garnedd Tunnel was lowered during the reconstruction of the line during the 60's (possibly when the Army were working on the line?). --Edward Harris (talk) 15:43, 17 September 2008 (UTC)
[edit] Questions about height
According to this article, the height limit was formerly dictated by the Old Moelwyn Tunnel, but is now by the Garnedd Tunnel and Rhiw Plas bridge. About the Old Moelwyn Tunnel, both that article and this one say "The tunnel measured just 8' wide and 9' 6" high"; about the Garnedd Tunnel and Rhiw Plas bridge, I've found no measures. But the article about Van 1 says "nowadays the loading gauge has been extended from 8ft 6ins high to 9ft 8ins", presuming a former height margin of a whole foot. Seems much to me. The article about Vale of Ffestiniog gives its height as 9' 5½", which on one hand is 2½" less than 9' 8", on the other would yield a more normal margin if 9' 8" is the outer envelope. 83.255.37.88 -(talk) 12:40, 20 October 2011 (UTC)
