The annual marathon in Baltimore is a tricky affair to coordinate among the city’s agencies, especially amid a full spate of construction and infrastructure projects. Conflicts between new construction and the race route are a key challenge for officials to manage. Enter Envista, a web-accessible infrastructure coordination software system that Baltimore’s chief of design and construction calls a game changer. Image: Tiop Courtesy of Envista Envista displays integrated construction scheduling data from public and private utilites, municipalities and highway agencies on an online map to prevent conflicts and synch operations. “Last year, we coordinated the Baltimore Marathon on Envista,” says
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.