Alpine tunnel building plans, elevations and cross-sections

Posted by Jeff Young on
URL: http://c-sng-discussion-forum.254.s1.nabble.com/Alpine-tunnel-building-plans-elevations-and-cross-sections-tp2465.html

Having been made aware of the HAER and HABS resources (thanks to Chris), I found a whole bunch of drawings of plans, elevations and cross-sections of various Alpine Tunnel buildings:

http://www.loc.gov/pictures/related/?q=Colorado--Gunnison%20County--Pitkin&fi=places&co=hh

Anyway, thought it might be of use to someone....

Cheers,
Jeff.