Two chartered buses slid down an icy, snow-covered cobblestone street and crashed through a guardrail Friday, stopping just before they would have plummeted onto the freeway 20 feet below.

The front end of the first bus dangled above Interstate 5 for hours before a tow-truck managed to pull it from the edge.

The buses were carrying about 80 young adults from a job training program in Moses Lake, in central Washington, to a downtown Seattle bus terminal. There were no serious injuries.