Tunnel 15 as it looks today near the Bonneville Trailhead. Built in 1977, the tunnel rerouted the Burlington Northern Railroad (BNSF today) through the hills to make way for Bonneville Dam Second Powerhouse built in the early 1980s. The Bonneville Trailhead serves the Tanamous Trail that connects to the Pacific Crest Trail.
I wanted to capture a shot of the train emerging from the tunnel. A westbound train emerged from the tunnel. While standing on the tunnel, you can feel the vibration as the train passed through the tunnel.