“Under the oversight by Federal Energy Regulatory Commission, the California Division of Safety of Dams and an independent board of consultants, the main and emergency spillways have been fully reconstructed to modern engineering standards to be able to handle flows necessary for flood protection of downstream communities,” Yarbrough said. The rebuilt Oroville Dam spillways are seen from a plane on Tuesday, Feb. John Yarbrough, the assistant deputy director for DWR’s state water project said the new spillway is entirely up to modern standards and has been seen considerable oversight throughout the construction process. The rebuilt main spillway was first utilized on Apand was successful in sustaining a flow of 25,000 cubic feet per second. OROVILLE - Five years after the Oroville Dam spillway crisis, DWR has completed the structural rebuild of the main and emergency spillways and says it backs the spillways’ safety.
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