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| Re: Any word on the arrival of the first M8s?(Photos) (821723) | |||
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Re: Any word on the arrival of the first M8s?(Photos) |
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Posted by Sand Box John on Sat Aug 15 22:44:44 2009, in response to Re: Any word on the arrival of the first M8s?(Photos), posted by Dutchrailnut on Sat Aug 15 21:45:21 2009. The floor was lowered to max nearly 15 years ago when Azobe ties were installed, the rail at one point is actually laying on top of the 63th steet tunnel with no ballast under the ties just around it.How much additional vertical clearance was gained in that lowering project? Direct fixation track fasteners on the 63 rd Street tunnel roof would increase the vertical clearance by at least the depth of the ties. There is no way in hell the track bed can be lowered without disturbing the tunnel wal foundation, of wich currently over 1.5 foot is exposed. As I recall the wall foundations were underpinned in the in the Howard Street Tunnel in Baltimore to gain additional vertical clearance. John in the sand box of Maryland's eastern shore. |
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