Would be interesting to see the longevity of this product. Generally, any coating you put down on concrete or asphalt, comes right up in a year or two. Being that this is designed for winter use when plows are involved, I can only imagine the abuse this stuff will take. Either that, or you would have to raise the plows to go over the bridge. Still, good idea, they have been having success with the molasses pre-treatment, which in the long run, may be more economical.