RE:local workforce I think safe to say as far as road construction goes its very much a progressive approach, typically up north you clear and grub then build with a coarse base which coud be 6" blast rock and topped later with layers of finer material to the point that your ready for 3/4" road crush, which will be the final surface. My guess is because to the location of the road camp only some 20 km off the main hiway means that construction traffic such as crew buses and pick up trucks etc going back and forth up the road as it advances toward Whati, that coarse base material is very tough on tires! so in keeping with the progressive idea they probably have already started placing road crush at least in some part from the base camp, to reduce tire problems for those that have to drive back and forth several times a day. Just my thinking i have not been on the new part yet.