Bombardier/Canadair Undifferentiated or Other Model
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 1
ATC Issue All Types; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Separated Traffic
Airspace Structure
I was working final on a runway 10 flow into Portland. A Regional Jet was descending via the timbers arrival STAR and level at 5000. I noticed a VFR target squawking 1200 eastbound at 4700. The aircraft preceded to cross the timbers STAR. I issued traffic to the CRJ and the aircraft never got the 1200 target in sight. I had to turn and issue an expedited descent to the CRJ to avoid merging the targets. The unidentified aircraft continued eastbound; just south of KPDX and I handed the target off to the hood sector. Hood stopped all PDX departures at 4000 as the target continued to fly up the departure corridor at a slow rate of speed. This was not a safe operation. In no way whatsoever. Our class Charlie airspace is completely at fault. The aircraft technically didn't deviate protected airspace. However; our arrival routes are not protected by the class Charlie rules. The timbers arrival descends to 5000 feet and often we can't go lower because of terrain and arrivals/departures off of KHIO airport. The final sector's airspace needs to be protected at the standard downwind/base/final approach altitudes.Every day there are targets crossing final in front of aircraft; below aircraft; and above aircraft and we aren't talking to those airplanes and have no way to verify their mode C. It is extremely unsafe; and unfortunately; something will happen someday that we all are desperately trying to avoid. This needs to be fixed soon; like yesterday.
P80 TRACON Controller reported the PDX class C airspace compromises separation for arrivals and departures due to non-participating air traffic in the area.