Mega Builders

Venice: Code Red (4x7)

Air date: Nov 25, 2009

It's the ultimate engineering challenge: rescue the magnificent city of Venice, Italy, before it is drowned by the Adriatic Sea. A fantastic 5.5 billion dollar plan is taking shape. It's called the "Mose project", after the biblical saviour Moses. They're constructing 78 massive floodgates, up to 29 metres tall, that will lie on the seabed. Whenever a dangerous high tide threatens the city the gates are supposed to rise from water and hold back the sea. The dynamic woman at the helm; Chief Engineer, Dr. Maria Theresa Brotto, declares, "Without the Mose, we will lose Venice." But no one can predict when a colossal high tide will swamp the city and it's a race against time for the workers of the Mose project.