February 13, 2017 8:15 pm RAW: Chopper Drops Bags of Boulders at Oroville Dam Spillway Crews began stabilizing the Oroville Dam emergency spillway Monday by transporting bags of boulders by helicopter and dropping them into gouges on the structure. US & World Videos 1:36 Arizona Senate repeals 1864 abortion ban 1:40 Democrats say Big Oil misled public for decades about climate change 1:45 NYPD enters Columbia University in riot gear to clear protest 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look