WALTHAM, MA - Around 5:15 P.M. on April 5th, a van traveling south on I-95 in Waltham rolled over with its contents strewn along the guardrail. Waltham Fire dispatched Engine 4, Rescue 1 and Medic 1. Because it was not known for sure what lane it was in, Deputy Randy Mullin requested Engine 2 to also respond in the southbound lane. A bystander who happened to be an EMT assisted two people out of the van. Neither was injured. Waltham firefighters had to clear the highway of 1,000 nails and screws.