The below graphs show the time in minutes it takes a (hypothetical) vehicle to travel from one end of the road to another, calculated from freeway sensor

Travel time (minutes) for Interstate 5, from junction with 205 to the Columbia River Bridge (NB: 23 miles; SB: 21 miles):

Travel time (minutes) for Highway 84, from junction with 205 to Downtown Portland (EB: 3.7 miles; WB: 3.5 miles):

Travel time (minutes) for Highway 26, from Hillsboro to Downtown Portland (EB: 13.3 miles; WB 11.7 miles):

Data provided by PORTAL — the “Portland Transportation Archive Listing”: