The bike idea has been one of my backup plans for a while. I would load it down with about 100 lbs.

See Blast's post about the pipeline Right of Ways. They are fairly wide, road like grading and although most have "grown", you will find hiker's, hunter's, and animals have made trails along them about a man and a bike width wide.

They also cut straight across country and thus provide the shortest route between 2 points. The growth along the trail and in the trail provides cover for moving during strange times.