trucks from dawson creek could travel safe through to whitehorse. ♪ at intervals of about 100 miles, of the fuel used on the highway work on the railhead at dawson creek were brought up in trailheads to step way. but with the completion of the project with its refinery and network of pipelines, the alaska highway had its own fueling system. gasoline was pumped through a pipeline to all points on the highway from watson lake. ♪ by october 1943, there was only one gap left in the highway, just east of the alaska-yukon border. on october 13, the remaining gap was only a few hundred feet. there were two crews working toward each other. in this section, the ground stayed frozen all summer long down to a depth of 50 or 60 feet. if the surface cover were disturbed, the ground would quickly defrost, so the contractors used a technique peculiar to the north. gravel and rock was on the ground and carefully spread over. this way insulation was provided to that already added by nature and the frost was permanently locked in. ♪ >> the truck drivers and superintendents and so on felt excitement. t