Don’t rely on good luck alone; be prepared for Shamrock Run transit impacts


New routes this year will cause fewer delays, but be sure to plan ahead

With almost 25,000 participants expected at the 39th annual Shamrock Run on March 19th, it’s important to plan ahead for impacts to TriMet service Sunday morning. Despite its size, new routes this year will decrease the delays to buses and trains compared to years past, but whether you are running, walking, spectating or just trying to ride through downtown Portland, plan ahead and leave extra time to make your trip.

All eShamrock Run Logovents start at SW Naito Parkway and Pine, adjacent to Waterfront Park. The first race starts at 8:00 a.m. and the last event, the 4-mile Shamrock Stride Walk, begins at 10:30. The 5k, 15k and Stride Walk start south on Naito while the half Marathon and 8k head out northbound. Organizers will begin closing roads at 6:30 a.m., which will lead to some bus line detours beginning at 6:45 a.m. through approximately 1 p.m. More information about start times can be found at the event’s website here.

To manage the crowds and allow us to let trains through at times, race organizers will use the “release and hold” system.  Runners will be released in groups of 500 to 1000 participants approximately once per minute to allow the field to spread out.

Impacts to transit service include:

    • Nine bus lines will be detoured between 6:30 a.m. and approximately 1:00 p.m.
      • 8, 9, 12, 15, 17, 35, 44, 54 and 56
    • Line 8, which normally runs up to the OHSU’s Marquam Hill campus, will end its route at SW 5th and Columbia. Shuttle buses will take riders from there to the Portland Aerial Tram at SW Bond Ave for service to OHSU.
    • The Portland Aerial Tram will run on Sunday from 6:30 a.m. though 5 p.m.
    • MAX Orange Line will be delayed as it crosses the race route at SW Lincoln and Naito. Riders should expect intermittent delays of up to 30 minutes at various times between 8 a.m. and 1 p.m.

Getting there

Plan ahead, and check schedules or use TriMet’s online trip planner at

All MAX lines run into Portland City Center, but some trains run every 35 minutes on certain segments of the line during the early morning hours.

The closest stops to the Shamrock Run starting line are:

      • Blue/Red lines: Oak/SW 1st
      • Green/Orange/Yellow lines: SW 5th & Oak (southbound) and SW 6th & Pine (northbound)

More than a dozen bus lines serve Portland City Center on Sunday, but other bus lines don’t run on Sundays so check before you go at

Park and then ride

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

We’ve got an app for that

There’s no need for exact change or a stop at the ticket machine or retail outlet, with the TriMet Tickets mobile app your phone is your fare. 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.

Stay alert. Stay alive.

Shamrock Sunday is all about fun, but please pay attention and stay alert when crossing tracks and streets. Make sure your view isn’t obstructed and take just a moment to be aware and look both ways.

Transit lanes are for buses & trains — not private vehicles

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