The city of Oroville announced plans Tuesday to sue the state’s Department of Water Resources, alleging decades of mismanagement were to blame for the Oroville Dam’s failure in February 2017 and the emergency evacuation of 188,000 people. The suit, which city officials intend to file in Butte County Superior Court, calls on the DWR to cover millions of dollars in economic and infrastructure losses incurred by the dam’s failure.