The California Department of Water Resources still has unfinished business at Lake Oroville, despite completion of major construction on the spillways earlier this year following the 2017 events that triggered more than 180,000 people living downstream to evacuate.

Major construction on the main spillway that was heavily damaged in 2017 was completed this spring by Kiewit Infrastructure West Co., along with the emergency spillway next to it. The company’s contract work is expected to be substantially complete this December with the contractor fully offsite by next spring.