how long has the wood been sitting there? ever heard of petrification?
"The word, to petrify, literally means, "turn to stone." Petrified wood, then, is wood that has turned to stone. The English word is similar to the Greek (piedra) and Latin (pietra) words for stone.
Petrified wood is a fossil of a woody plant preserved by permineralization through time by chemical and physical processes."
It probably takes less than 100 years for wood to petrify, AS THE PHOTO ABOVE, I don't think that they has been placing near the road, I guess the local has moved there!!!
Certainly because people in that area don't have such knowledge or understand about EVOLUTION....some scientist believe fish in million years of evolution became land animals...or we are now because of APES.