Repair of the collapsed Oroville dam in the American State of California can cost 200 million dollars, RIA Novosti reported quoting Associated Press.

The head of California's water agency says repairs to the damaged concrete spillway at Oroville Dam will cost between $100 million and $200 million. Dozens of construction crews are dropping 1,200 tons of material on the earthen emergency spillway per hour using heavy equipment and helicopters.  Crews are working around the clock and the area is being continually monitored with the help of drones carrying cameras.

U.S. President Donald Trump provided the federal assistance help to California in connection with emergency on a dam.