(Portland, OR)  --  State transportation officials say it will be next week before the Historic Columbia River Highway is open again to traffic.  The stretch of the highway between the Stark Street Bridge and Woodard Road has been shut down since June 5th, when it was smothered by a landslide.  The Oregon Department of Transportation says a high-reach excavator that was brought in from Seattle won't likely finish removing large rock outcroppings from the 120-foot face before Friday.  Further debris removal and inspections will be undertaken afterward.