Nobody mentions helicopters!

Bulldozers, payloaders, graders can be delivered to multiple locations along the esker route.

Temporary work camps built at sites along the route.

Construction takes place from both ends and from the middle all at the same time.

Surely this cuts the time frame. Time is money.

During the cvonstruction of the Dew Line Radar stations helicopters were the transportation.

Hydro across Canada uses them extensively buiding heavy steel tower lines.