Welcome to Dragados. Dragados is the culmination of a strong entrepreneurial spirit, created over more than 70 years of activity in which thousands of people have joined efforts to shape one of the largest and most influential companies in the construction industry worldwide.
A tunnel is an underground passageway, dug through the surrounding soil/earth/rock and enclosed except for entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods.
What could be the explanation for the Arizona Explosions and mysterious BOOMS reported throughout 2012? Yucca Mountain DUMB Tunnel Entrance. Many of the United States' Deep Underground Military Bases (DUMBs) and tunnels have already been either severely damaged or destroyed by United States Patriot forces.
Some animals live underground for all or much of the time. Living underground has many advantages, including protection from some predators, from extreme temperatures (both hot and cold), and from overly dry climates. Many animals also hunt for food underground, like tubers, roots, other plant ...
The Tunnels: Escapes Under the Berlin Wall and the Historic Films the JFK White House Tried to Kill [Greg Mitchell] on . *FREE* shipping on qualifying offers. A thrilling Cold War narrative of superpower showdowns, media suppression, and two escape tunnels beneath the Berlin Wall In the summer of 1962