World's Most Complex Tunnel Project: The Mega Dig | Complete Season | FD Engineering

Free Documentary - Engineering · Aug 31, 2026 · 2h 59m

World's Most Complex Tunnel Project: The Mega Dig | Complete Season 1 | FD EngineeringWatch the next Season here: https://youtu.be/fmkuSvDVP3ADiscover how engineers begin one of the most ambitious tunnel projects ever attempted beneath the heart of London. Using giant tunnel boring machines and millimeter precision, they battle unstable ground, historic buildings, and enormous technical challenges to create the foundations of a revolutionary railway.00:00:00 Urban Heart Surgery00:58:17 Tunnels Under the Thames01:55:41 Platforms and Plague Pits#FreeDocumentary #Documentary…