Institute for Research in Construction The National Research Council's Institute for Research in Construction (IRC) is Canada's construction technology centre. IRC provides research, building code development, and materials evaluation services. http://www.nrc.ca/irc/irccontents.html Nrc.ca~Site InfoWhoisTrace RouteRBL Check
The Tunnel Page The longest road and rail tunnels in the world grouped by categories such as sub-sea tunnels, and immersed tubes. http://home.no.net/lotsberg/ No.net~Site InfoWhoisTrace RouteRBL Check
SteelStuff Up-to-date information on the design and construction of fabricated structural steel buildings. http://www.engr.psu.edu/ae/steelstuff/steelstuff.htm Psu.edu~Site InfoWhoisTrace RouteRBL Check