I just came across this thread and wanted to offer my thoughts. While it looks like you did a nice job of what you did, I don't think it will be a long term solution. It should last for awhile, but that will depend on how much water you get out of the ground.
Basically, what you did was create a collection point for all the surrounding water in the hill. Water will always take the path of least resistance, and digging a pit, and filling it with gravel. The drain pipe will drain the water as long as it never gets pluged up, but it will never remove the moisture or slow down the flow of water into the pit.
Since the pit will always be a wet area, it will be impossible to get compaction of anything that you put over top of it. Loose gravel is great for holding and collecting water, it is terrible for building on top of.
Michelle said that you need to build up the road. I agree with this. When I started reading the thread, I was going to suggest digging pits on either side of the road to drain the water and building the road up with at least two feet of well compacted soil. Then top with at least 4 inches of road base rock. Not gravel, and not recycled ashpalt. Road base that is at least 4 inches thick will compact and form a water proof road that will support the weight of the heaviest vehicles. With your situation, I would go twice that thick over that area, and 4 inches for the rest of the road. If you want to use recycled asphalt, you can put it over the road base after it's compacted. The asphault does not have any strength to it and is only good as a finish. With well compacted road base, ashpalt doesn't really do anything. The road base will smooth out real nice.
Now that you have the collection pit, I think you will need to put the road off to the side of it. Hopefuly it will pull enough water out of the hill that you can build up a solid road without having to make too big of a detour.
French drains have their place. This isn't such a place.
Eddie