A service road (dirt or gravel?) for the power line is needed but that is insufficient for the communities along the path. Practically, it has to be a paved all season road. I do not think that this road will be just a service road. The natives near it would cry out 'Foul' if it was just that. Hydro may build a service road but soon after the politicians would upgrade it to paved. Better to build a paved one from the start otherwise the foundation might not be good enough for pavement and heavy trafic.