(Portland, OR)  --  This weekend is your last chance to hike the Springwater Corridor trail before it closes for a few months.  It's being shut down as part of the Oaks Bottom Wildlife Refuge restoration plan.  The popular trail was set to close when work began Sunday, but it was pushed back a week and is now slated to close Monday.  The trail will still be open from Portland to the wildlife refuge, but will be closed near Oaks Park through about the end of October.