(Portland, OR) -- Riding MAX from the westside to downtown Portland and areas across the Willamette River, including the airport, will take up to 45 minutes longer this week. Construction has closed the tunnel under the West Hills affecting the Blue and Red lines. Passengers will ride a shuttle bus from the Sunset Transit Center to Providence Park. TriMet is advising passengers to use other methods of transit for the next week. The line will reopen on Sunday.