troops had to repair and service their equipment as best they could, but facilities were badly overtappeds were deadlined for weeks at a time. ♪ at the start, troops working on the highway had only tents for living quarters. ♪ by the beginning of 1943, most of them were living in quonset huts. they could be erected in a few hours. following behind the soldiers who built the pioneer road came civilian contractors to turn it into a permanent, all weather road. they established their own camps along the route. ♪ there were public roads administration surveyors to relocate and improve the alignment of the road. ♪ there were skilled crews with power shovels to widen the road and cut down grade. ♪ there were crews with trucks to haul gravel. there were dirt moving machines as well as trucks to build up the road. there were bulldozers to pack down the gravel and to dig ditches. ♪ there were motor graders to smooth the turf. there were skilled structural workers and carpenters to build permanent bridges, replacing the temporary ones from the engineers. ♪ as ice formed on the rivers, strange new p