They are called gantry ... cranes would have to sit to set the beams, so these cranes carry the load differently than a traditional crane,” Harmon said. The cranes will roll back and forth with 60 ...

They are called gantry cranes ... a traditional crane,” Harmon said. The cranes will roll back and forth with 60 beams over the next six or eight months, he said. Each beam weighs 68,000 ...