AMP: Havana-Helix Hwy #335/2 Location: Havana-Helix Hwy and Holdman-Athena Hwy, Umatilla Cty No reassurance shield after the 334 junction. AMP: 0 Location: Havana-Helix Hwy and Main St, Helix A couple miles later, we’ll enter Helix. AMP: 0 Location: Main St and Vesper St, Helix In the middle of Helix, Oregon 335 ends.  S to OR 334  E to … Continue reading Oregon Route 335, OR 334 to Helix