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expected flood flows during the 2017-2018 Winter Flood Season. The remainder of this paper is organized into the following sections:  Meeting the Challenges for Spillway Recovery  Design and Construction Processes  Regulatory Review  Reservoir Operations  Meeting the Schedule  Lessons Learned 2. MEETING THE CHALLENGES FOR SPILLWAY RECOVERY 2.1. THE CHALLENGES The management of the Oroville Dam Spillway Incident in February 2017 and in the ensuing months was considered by DWR as the Oroville Emergency Response [1]. The restoration work following this initial effort was known as Oroville Emergency Recovery (OER). The charge for the OER was to restore adequate capacities for the FCO Spillway chute and the Emergency Spillway to safely pass potential flood events during the 2017-2018 Winter Flood Season, and thereafter. This charge presented enormous challenges, including:  The need to complete repair and replacement designs in only weeks instead of the normal months or years,  Insufficient qualified DWR staff available,  Insufficient geologic information,  The need to operate the damaged FCO Spillway chute through May 2017,  Limited time for regulatory review and approval of designs,  Insufficient time to construct complete repairs or replacements,  Lack of a full understanding as to the causes of the incident, and  Managing expectations and communicating accurate information to a concerned public and their elected representatives. 2.2. ASSEMBLING THE TEAM For the Oroville Emergency Recovery, DWR quickly assembled the OER Spillways Task Force devoted to completing the FCO Spillway chute and Emergency Spillway recovery designs, administering construction contracts, and developing a revised reservoir operations plan. The team was composed of several experienced engineers from DWR’s Division of Engineering, Project Operations Office, and other units from within DWR. However, there were insufficient staff available from within DWR to perform the necessary engineering work. As a result, DWR contracted with knowledgeable and experienced engineering professionals from a variety of sources including: 66