(Portland, OR)  --  A road worker is dead as a result of last week's construction zone crash along Interstate five near Wilsonville.  Ron Davis, a veteran of more than 25 years with Knife River Construction, was hurt Tuesday of last week and rushed to Legacy Emmanuel for treatment.  A vehicle came through the construction site Davis was working at and hit him before leaving the scene.  Colin Cook was arrested by Oregon State Police for allegedly running into Davis and another construction worker.  He faces a number of charges.