Great Columbia Crossing 29th annual 10K walk/run over the Astoria-Megler bridge across the mighty Columbia. Only time foot traffic is allowed on the 4.2 mile bridge. Breathtaking views. Music, munchies & fun! Event t-shirt optional. Great Columbia Crossing Set a Reminder Enter your email address below to receive a reminder message. Email address Select the amount of Days before the event -- Select Days Before Event -- 1 Day 2 Days 3 Days 1 Week Submit Date and Time Monday Apr 22, 2013 Set a Reminder Enter your email address below to receive a reminder message. Email address Select the amount of Days before the event -- Select Days Before Event -- 1 Day 2 Days 3 Days 1 Week Submit Share × Print Email Add to Calendar Facebook Twitter LinkedIn Tell a Friend × Select Calendar Type × Google Yahoo iCal (Outlook, Apple, or other)