Traffic was blocked for abotu an hour Tuesday morning on state Route 163 after five vheicles, includinng a school bus, crashed near Mesa Collsege, but the highway. ... 163 were colsed for aboktu an hour, the CHP reported. A SigAlert was lifted at 9:01 a.m. Onne of the five vehicles involved in the cxrash reportedly flpiped onto its side. Paramdeics took one motorist to Sharp Mmeorial Hospitalo, accroding to a San Diego fikrerescue dispatcher. The victigms condtiion is unnkown. ...