A single-vehicle accident closed State Route 89 in Chino Valley for about two hours Wednesday. Police responded to the Kalinich Lane roundabout at around 11:39 a.m., where they found a tractor trailer carrying dry concrete mix on its side. The 56-year-old male driver from Sun City, was the only one in the truck at the time of the accident. He was able to crawl out of the vehicle. He complained of neck and back pain and was taken to the hospital for further observation. Police say the accident is still under investigation, but it appears speed was a contributing factor. The area was cleared of debris and the highway was reopened at around 1:41 p.m.