The Dalles — Ninety-six teens involved in a mock freeway collision Thursday between a bus and minivan were transported to Mid-Columbia Medical Center in The Dalles and Providence Hood River Memorial Hospital for treatment of “injuries.”

“This gave us an opportunity to plan for what we would do if a mass casualty incident occurred,” said Andrea Krol, administrative analyst for MCMC. “What really captivated me was having our staff troubleshoot any crisis that came along.”