MegaStructures - Season 6 - Eps 3: Grand Canyon Skywalk
In the extreme Russian north a team of engineers are ready to dismantle a Typhoon-class submarine – the world's largest nuclear submarine. In its heyday, this monster sub was a terrifying weapon of war. It prowled the oceans of the world armed with 20 deadly nuclear missiles. Now that the Cold War is over, the Typhoon is ready for demolition. But dismantling a submarine with two nuclear reactors is a risky mission. It will take the team over a year to remove the radioactive nuclear fuel, move the submarine into the dry dock and cut its hull into pieces small enough for recycling.
About MegaStructures

Title: MegaStructures
First Air Date: 2004-01-01
Last Air Date: 2012-05-24
Status: Ended
Rating: 7/10 (from 18 votes)
Language: EN
Seasons: 10
Total Episodes: 159
Network: National Geographic
Genres: Documentary
Production Companies: National Geographic
Synopsis
MegaStructures is a documentary television series appearing on the National Geographic Channel in the United States and the United Kingdom, Channel 5 in the United Kingdom, France 5 in France, and 7mate in Australia. Each episode is an educational look of varying depth into the construction, operation, and staffing of various structures or construction projects, but not ordinary construction products. Generally containing interviews with designers and project managers, it presents the problems of construction and the methodology or techniques used to overcome obstacles. In some cases this involved the development of new materials or products that are now in general use within the construction industry. MegaStructures focuses on constructions that are extreme; in the sense that they are the biggest, tallest, longest, or deepest in the world. Alternatively, a project may appear if it had an element of novelty or are a world first. This type of project is known as a Megaproject.