Page - 43 - in Book of Full Papers - Symposium Hydro Engineering

Fig. 1 Flood Control Outlet (FCO) Structure and Emergency Spillway, March 2011 This paper is part of a series to describe the Oroville Dam Spillway Incident Emergency Response and Recovery. This paper focuses on the implementation of the emergency response actions starting on February 7, 2017, and the actions taken in the days and weeks after failure of the concrete in the FCO Spillway chute. It provides detail of the incident as it unfolded, the decisions made to protect the public, the incident command system, and the situation that led to the evacuation. 43