Tunnel Number 6 Tunnel Number 6 Malheur 2621 Adrian
Sunset Tunnel 2552 Sunset Tunnel 2552 Washington 1371 Timber
Tunnel Number 3 Tunnel Number 3 Malheur 2644 Owyhee Dam
Tunnel Number 5 Tunnel Number 5 Malheur 3163 Owyhee Dam
Tunnel Number 7 Tunnel Number 7 Malheur 2638 Graveyard Point
Toothrock Tunnel 4555 Toothrock Tunnel 4555 Multnomah 292 Bonneville Dam
Tunnel Number 1 Tunnel Number 1 Malheur 2989 Owyhee Dam
Walcott Tunnel Walcott Tunnel Washington 1283 Timber
Tunnel 8 Tunnel 8 Josephine 1565 Glendale
Arch Cape Tunnel 2247 Arch Cape Tunnel 2247 Clatsop 417 Arch Cape
Salt Creek Tunnel 2539 Salt Creek Tunnel 2539 Lane 4160 Diamond Peak
Knowles Creek Tunnel / Ralph A Peterson Tunnel 7139 Knowles Creek Tunnel / Ralph A Peterson Tunnel 7139 Lane 991 Mapleton
Elk Creek Tunnel 3437 Elk Creek Tunnel 3437 Douglas 499 Elkton
Cape Creek Tunnel 3961 Cape Creek Tunnel 3961 Lane 315 Heceta Head
09254B Tunnel 09254B Tunnel Multnomah 174 Portland
13514H Tunnel 13514H Tunnel Multnomah 239 Mount Tabor
Highway 99 West Tunnel Highway 99 West Tunnel Multnomah 226 Lake Oswego
Mosier Twin Tunnels Mosier Twin Tunnels Wasco 279 White Salmon
Northwest Cornell Road Tunnel 1 B - 125 Northwest Cornell Road Tunnel 1 B - 125 Multnomah 482 Portland
Northwest Cornell Road Tunnel 2 B - 127 Northwest Cornell Road Tunnel 2 B - 127 Multnomah 558 Portland
Oneonta Tunnel 1759 Oneonta Tunnel 1759 Multnomah 148 Multnomah Falls
Rocky Butte Tunnel B - 102 Rocky Butte Tunnel B - 102 Multnomah 430 Mount Tabor
US Highway 30 Tunnel US Highway 30 Tunnel Multnomah 203 Mount Tabor
US Highway 30 Tunnel US Highway 30 Tunnel Multnomah 200 Mount Tabor
Vista Ridge Tunnel Eastbound 9103 Vista Ridge Tunnel Eastbound 9103 Multnomah 394 Portland
Vista Ridge Tunnel Westbound 9103B Vista Ridge Tunnel Westbound 9103B Multnomah 381 Portland
West Burnside Street Tunnel Number B - 101 West Burnside Street Tunnel Number B - 101 Multnomah 928 Portland