A man has hit seat belt to thank for keeping him safe, after rolling his car on Interstate 90 Friday morning.

Just after 4 a.m., a man was driving westbound near the Argonne exit, when he fell asleep. He crashed his car into a concrete wall on the right side of the freeway, rolling his car onto its top.

Washington State Patrol said his seat belt is the only reason he is not injured from the crash.

The outside lane of westbound I-90 in that area was blocked for a little more than an hour.