On Thursday, as concerns about the safety of Trinity’s guardrails continued to mount, Vermont, Hawaii and Colorado said they had placed moratoriums on buying and installing the ET-Plus rail heads. A rail head is a flat piece of steel at the front of a guardrail that is meant to slide along the rail on impact, pushing the metal safely out of the way.
Ten states have now banned the guardrail units; the others are Massachusetts, Mississippi, Missouri, New Hampshire, Nevada, Oregon and Virginia.
