Don’t get caught in a pinch! Plan a little extra time when taking TriMet to, through, from the Shamrock Run


Leave it to luck or plan ahead for delays on Shamrock Sunday, March 16

For the 5th consecutive year, the Shamrock Run has sold out, bringing 35,000 participants to the streets of downtown Portland on Sunday morning, March 16. TriMet expects to see large crowds on bus and MAX trains as participants and spectators make their way to Waterfront Park and the starting line.

The big 15k Shamrock Challenge kicks off events at 7:40 with other runs and walks starting periodically through 9:40 a.m. Most of the events will have an impact on some TriMet service. Fourteen bus routes will be detoured in downtown Portland and MAX trains may be held for a few minutes to allow runners and walkers through. Riders traveling through downtown before noon on Sunday should plan an extra 10 to 15 minutes into their travels. The City of Portland will be operating the Portland Tram on Sunday morning to get people to and from Marquam Hill/OHSU.

With many street closures and detours in downtown Portland due to the run, TriMet also reminds drivers to use caution on the Transit Mall – 5th and 6th avenues. Please do not drive or stop in the “bus only lanes” and avoid making illegal turns and other unsafe maneuvers around our buses and trains.

Bus Service

  • Fourteen bus lines cross the Shamrock Run course and will be detoured on Sunday morning.
  • Lines 4, 6, 8, 12, 14, 15, 17, 19, 33, 35, 44, 54, 56 and 77 will detour from 7 a.m. through as late as 11 a.m.
  • Line 8 riders traveling to Marquam Hill/OHSU will be shuttled to the South Waterfront for a special Sunday ride on the Portland Tram to OHSU. TriMet fare will be valid on the tram.

MAX Service

  • The closest stops to the Shamrock Run starting line are the Oak/SW 1st Ave platforms on the Blue and Red lines and the SW 5th & Oak and SW 6th & Pine platforms on the Green and Yellow lines.
  • MAX will run on Sunday schedules.
  • Trains run every 35 minutes on certain segments of the MAX line during the early morning hours; Green Line service from Clackamas Town Center does not start until 8 a.m.
  • Riders should plan ahead. Check schedules or use the trip planner at

Plan ahead

Avoid the need to make two purchases on Sunday by buying a day pass. It’s the same price as two 2-hour tickets.

Day Pass Fares
Adults:                        $5
Youth:                         $3.30
Honored citizens:        $2

And you no longer need to stop at the ticket machine or a retail outlet to get your fare! Our new TriMet Tickets mobile app lets you easily purchase and use tickets and passes instantly on your phone – anywhere, anytime. Just download the free app, register your debit/credit card in our secure system and you’re ready to buy, activate and go. Learn more at

Park & Rides

TriMet has several Park & Ride lots, including ones at Gateway, Sunset and Willow Creek/SW 185th Ave transit centers. Visit for locations and hours of availability.