What waste was produced during the Manhattan Project at the Hanford Site, and what are the is happening to clean up the site? Objective To help students understand the waste produced at Hanford and what projects or plans are underway to clean up the site. Background The Manhattan Project, America’s wartime effort to build an atomic bomb, was so promising, yet so unlikely to succeed, that two independent paths were followed, in the hopes that at least one of them would produce a war-changing bomb. One of those methods was based on using carefully refined uranium as the heart of the bomb. That w Duration: 60 Minutes.