JOHANNESBURG--December 3, 2012--Written by Richard Finlayson, Senior International Editor for Industrial Info Resources (Sugar Land, Texas)--The New Safe Containment (NSC) structure is now starting to rise over the ruins of the nuclear power block at Chernobyl 4 in Ukraine. The massive steel arch will replace a sarcophagus, which was built after the disastrous explosion at the plant in 1986, which sent a cloud of radioactive fallout over Europe and forced the evacuation of 115,000 people from the region surrounding the plant. The arched structure is 108 meters high, 257 meters wide and 150 meters long. It will be assembled on concrete rails and slid into place over the ruins. Construction work started in April after the first batch of steel was delivered to the site in March. About 20,000 tons of steel will be used on the project.