Heavy and Highway Carpenters build much of the infrastructure involving transportation. They build the bridges and retaining walls on roads and highways. They frame the concrete for deep tunnel projects and pump stations. In airports Heavy and Highway Carpenters frame bridges, walls and pump stations. On the lakefront they frame sea walls and erosion control projects. They also work on railroads building bridges and stations. Bridges and their related retaining walls provide the majority of heavy and highway work.
