Finished Projects
Completed Indian structures and what makes them work.
Long video
Sabarmati bullet-train river bridge
How the high-speed rail viaduct crosses the Sabarmati: foundations in the riverbed, piers, then spans placed on top.
Long video
Atal Tunnel, Rohtang
A single-tube road tunnel under the Pir Panjal that keeps a mountain valley reachable through winter.
Long video
Bhupen Hazarika Setu: a 9.15 km bridge over a moving river
Long river bridges in Assam must cope with a channel that shifts every monsoon. This film walks through how.
Long video
Kolkata's underwater metro beneath the Hooghly
Twin tunnels bored under a tidal river, and how water is kept out.
Short
Bairabi–Sairang railway: 45 tunnels in about 51 km
A hill line in Mizoram where tunnels and tall bridges replace curves.