Watch the video of YouTube Vloger Kiran of Visakhapatnam u can see the Road over bridge being constructed as part Visakhapatnam Bypass on Kolkatta Chennai National Highway in Pendurthi Kothavalasa section. It's a 10 laned bridge with rail crossing part with steel griders which are usually concrete. All the 4 lines are covered in a single span and they have left 2 spans each on either side for further lines. You can also see Visakhapatnam Kirandul Express with first Vistadome coach of India made in 2017 built by ICF which has screw coupling.