Boat Protection: Did someone post a question about this? See below.
In this link the second picture shows a typical construction area. Note all of the pavement is ripped up and there was 14 miles of dirt and rocks.
Scroll down to see our on the road toad protection. I towed our CRV 60,000 miles in the lower 48 without protection and without a scratch. Welcome to the Alaskan Highway. We have paint and light damage and the windshield has been replaced. The toad protection shown was added in Whitehorse to prevent further damage.
Scroll some more to see the boat/trailer protection from rocks used by a Yukon local.
The last picture is in Haines and following that is some text that you may find interesting. I didn't want to buy fuel in Haines Junction but as it turns out the Haines stations have high prices. And there was no way to avoid buying fuel in $$$ BC on the way home.