Tunnel design question

[NW Mailing List]

Mike,

                 I am attaching the engineering study for Huger Tunnel. 
  It is a large file and I hope the moderator will allow it to go 
through.  In this you will find what options were considered and why 
they chose the one that they did. A lot of thought went into this as you 
will see. If you want to re-visit the good old days, hopefully we will 
have something for you to read about Christmas.

Mason Cooper


[Moderator]
See PDF report at following:
http://nwhs.org/mailinglist/Huger_Tunnel_Assessment_Report.pdf

*From:* nw-mailing-list-bounces at nwhs.org 
[mailto:nw-mailing-list-bounces at nwhs.org] *On Behalf Of *NW Mailing List
*Sent:* Tuesday, August 24, 2010 1:15 PM
*To:* nw-mailing-list at nwhs.org
*Subject:* Tunnel design question

Does anyone know what factors went into the separated design of Huger or 
Montgomery tunnels versus both tracks through the same bore like 
Elkhorn, Davy and Roderfield?

Are there other separated tunnels (other than Hatfields, which were 
bored at separate times?)

Michael Shockley

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