AMP: Mt. Hood Hwy #26/6 Location: Powell Blvd and I-205, Portland Reassurance shield after the I-205 junction. AMP: 9 Location: Powell Blvd and 162nd Ave, Portland Reassurance shield on the extreme eastern end of the Rose City. AMP: N/A Location: Powell Blvd and 182nd Ave, Gresham As we enter Gresham, state maintenance ends. Turn left here to head … Continue reading U.S. Route 26, I-205 to OR 212