The European Bank for Reconstruction and Development (EBRD) spent 20 years designing the New Safe Confinement at Chornobyl, securing funding from 45 countries, overseeing its construction, and ultimately handing the project over to Ukraine. The 35-story arch-shaped structure was built in two sections before being moved into place over reactor No. 4 at the Chornobyl Nuclear Power Plant (NPP). Designed to last 100 years, the €2.1 billion ($2.5 billion) confinement was meant to contain radiation