Plans are moving forward for the first, $750-million, 25-mile section of the long-awaited $4.5-billion Baton Rouge Loop transportation project. Photo: HNTB Crossing designs are evaluated by the captains who will guide ships beneath them. Related Links: Piloting Virtual River Crossing The overall project includes an 80- to 90-mile controlled access toll roadway that will encircle Louisiana’s capital city metro area and alleviate congestion by providing additional capacity to Interstates 10 and 12 and alternate routes for local traffic. The first 25-mile section “has been broken out into an independent project,” which means it can advance ahead of the rest of
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.