Run between two states, enjoying views of the Columbia River, plus additional paths on Hayden Island! The Oregon-Washington Bridge, known also as the I-5 Bridge, the 3,500 Truss Bridge features sidewalks on both the north- and south- bound sides that can be used by pedestrians (and runners!). From Vancouver, runners can best access the bridge from the Waterfront Renaissance Trail. There are a couple of running options here.
From the Renaissance Trail, access the western side sidewalk (southbound bridge), and run for 1 mile to Hayden Island. There are great river views from the bridge. On Hayden Island, there’s a ~1.5 mile waterfront path loop. Here, either return to Vancouver, or for a longer run, hop back onto the bridge to cross over to the Portland side. In Portland, run east from the Portland Expo Center on a paved path along the Columbia River for 1.2 miles, paralleling N Marine Dr. here are some additional trails at the Smith and Bybee Wetlands Natural Area. Hop back on the bridge for the ~2 mile return to Vancouver.
Add-Ons: Waterfront Renaissance Trail, Vancouver.