Egon
Epic Contributor
Time on my hands so did some Google searches on building roads.
http://www.ecs.umass.edu/baystate_roads//technotes/14_Maintaining%20Gravel%20Road%20Surfaces.pdf
http://www.usroads.com/journals/rmj/9708/rm970803.htm
http://xroads.virginia.edu/~hyper/detoc/transport/how.html
And, of course, the Ice Road!
http://www.popularmechanics.com/outdoors/adventures/4212314.html
http://www.ecs.umass.edu/baystate_roads//technotes/14_Maintaining%20Gravel%20Road%20Surfaces.pdf
http://www.usroads.com/journals/rmj/9708/rm970803.htm
http://xroads.virginia.edu/~hyper/detoc/transport/how.html
And, of course, the Ice Road!
http://www.popularmechanics.com/outdoors/adventures/4212314.html