Union members on strike against three construction material producers voted against a new contract Sunday that could have ended a lengthy disruption in Chicago-area road projects that has lasted for more than six weeks.
About 300 members of Local 150 of the International Union of Operating Engineers first walked out on June 7 against three companies that collectively operate 35 quarries. Those companies — Lehigh Hanson, Vulcan Materials and Lafarge Holcim — produce sand, gravel and crushed stone that is needed for asphalt, concrete and other construction materials.
