ASTORIA — Registration for the Great Columbia Crossing 10K run/walk has surpassed the half-way point. That means time is running out to make sure you get the once-a-year opportunity to experience the Astoria Bridge on foot.

The race is set for Sunday, Oct. 12.

The 10K offers a scenic adventure on a fairly flat road with one steep incline to the peak of the bridge. It is the longest continuous truss bridge in North America.

Whether you’re an experienced runner or looking for a family-friendly event, the Great Columbia Crossing 10K appeals to everyone.

The run is an Official USA Track & Field Certified Event (#OR12025LB). Runners will be timed with an electronic chip and will be given a separate start time from walkers.

Participants are required to register in advance for the event. Registration will close when the event reaches capacity of 3,500 participants. Registration is $40 and $45 with electronic timing. Long-sleeve cotton T-shirts cost $16. Register online at www.greatcolumbiacrossing.com, by phone at 503-325-6311, email events@oldoregon.com, or in person at 111 W. Marine Drive. See the website for details regarding packet pickup and the race day timeline.

Registration includes free parking, shuttle bus service to the start of the race from the Port of Astoria or the Port of Chinook, bib number, light snacks at the finish line, and five “Clam Bucks” that can be redeemed toward a $5 purchase at participating Astoria-Warrenton Chamber of Commerce businesses Oct. 10 to 12.

Participants will enjoy a live concert at Dismal Nitch while waiting for the event to start. Acústica World Music will perform from 6 to 8:30 a.m. Acústica offers a vintage, global sound featuring diverse musical rhythms that are sure to get you pumped and ready for the 10K event.

The Great Columbia Crossing is produced by the Astoria-Warrenton Area Chamber of Commerce and sponsored by the Columbia Memorial Hospital Cardiology Clinic, a CMH/OHSU Collaboration.