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    Oroville Dam Drains in The Spillway Walls - How Do They Work?

    Hi All Mmm - if this was the place of a previous "make-good" and during the fix the drain pipe was sheared!!!!! When was the last spillway repair carried out? cheers edi
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    Oroville Dam Spillway Failure

    Thanks Scott - missed that - makes sense cheers edi
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    Oroville Dam Spillway Failure

    Hi Tom - it's not so much that they want to reduce the flow - it's that as the water level drops, the maximum flow that can pass through the spillway automatically reduces. The line labelled "Flood Control Outlet Rating" gives you the maximum flow rate through the spillway vs dam water level...
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