In a race to fix the damaged Oroville Dam’s main spillway by November, the California Dept. of Water Resources, the operator of the country’s tallest dam, is going to bid with a 65%-complete design that breaks recovery efforts into three parts, with an ultimate goal of doubling the main spillway’s release capacity to 270,000 cu ft per second.
Four contractors—Granite Construction, Barnard Construction Co., Kiewit and ASI Constructors Inc.—have until April 12 to bid; awards will be announced on April 17, with work starting in May. DWR declined to provide cost estimates.