Flows in the American River below Nimbus Dam will be decreased Tuesday and Wednesday for maintenance and installation of a fish weir structure at the Nimbus Fish Hatchery in Rancho Cordova.

The federal Bureau of Reclamation announced that flows will be temporarily decreased from 3,500 cubic feet per second to as low as 1,000 cfs to perform maintenance and prepare the hatchery weir foundation for installation of the weir’s super structure.

Working hours will be from approximately 8 a.m. to 4 p.m. each day. The bureau will increase flows at 4 p.m. Tuesday to 2,500 cfs and at 4 p.m. Wednesday, to 3,500 cfs. If necessary, maintenance flows could extend into Thursday, according to a bureau news release.

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