Wikipedia:WikiProject U.S. Roads/Oregon/List of laws

Early laws are in [1].

1917

• 423
  • Section 6: to be permanently constructed with a hard surface:
    1. Columbia River Highway, Multnomah-Columbia line to Tillamook-Clatsop line: part of Hwy 2, part of Hwy 3
    2. Pacific Highway, Multnomah-Washington line to Douglas-Lane line: Hwy 29, part of Hwy 28, part of Hwy 1
    3. Pacific Highway, Multnomah-Clackamas line to Junction City: part of Hwy 1
    4. Columbia River Highway, Multnomah-Hood River line to Idaho: part of Hwy 2, Hwy 6
    5. Pacific Highway, Jackson County: part of Hwy 1
    6. Arlington to Washington: Hwy 8
    7. Clatsop-Tillamook line to Garibaldi: part of Hwy 3
    8. Multnomah-Washington line to McMinnville: part of Hwy 28
  • post roads
    1. Pacific Highway, Douglas-Lane line to Jackson-Josephine line: part of Hwy 1
    2. Columbia River Highway, any parts of hard-surfaced #4 that aren't to be hard-surfaced: part of Hwy 2
    3. Roseburg to Marshfield: Hwy 35, part of Hwy 3
    4. McMinnville to Tillamook: Hwy 32, part of Hwy 3
    5. The Dalles to Klamath Falls: part of Hwy 4
    6. Bend to Lakeview: part of Hwy 19
    7. Sherman or Gilliam County (Biggs) to Idaho: Hwy 5
    8. La Grande to Joseph: Hwy 10
    9. Bend to Vale: Hwy 7
  • forest roads
    1. Medford to Klamath County (Fort Klamath): Hwy 22, Hwy 23
    2. Lane County (Eugene) to Coos County (Marshfield): Hwy 34, part of Hwy 3
    3. Eugene to Bend: part of Hwy 15, Hwy 17
    4. (Dayville to Redmond): part of Hwy 15
    5. Albany to Bend: Hwy 16, Hwy 17

1921

• 395: Roosevelt Coast Military Highway, Astoria to California including 1917 highways: Hwy 9

1929

• 298: relocate Hwy 12 between Halfway and Cornucopia

1933

• 106: Valley Falls to John Day: Hwy 49, Hwy 48

1939

• 529 s15: redescribed by name (numbers not in law)
  • Pacific Highway East 1E: Washington to Junction City
  • Pacific Highway West 1W: north of Portland to Junction City
  • Pacific Highway 1: Junction City to California
  • Columbia River Highway 2: Astoria to Washington
  • Oswego Highway 3: Portland to Oregon City
  • The Dalles-California Highway 4: The Dalles to California swapped with 50
  • John Day Highway 5: Arlington to Vale, branch to Austin east end became 7
  • Old Oregon Trail 6: Umatilla to Idaho (Nyssa), branches to Idaho (Weiser, Payette, Ontario)
  • Central Oregon Highway 7: Bend to Ontario east end replaced 5
  • Heppner Highway 52: Heppner Junction to Pilot Rock split from 8
  • Oregon Coast Highway 9: Astoria to California
  • Wallowa Lake Highway 10: La Grande to Joseph
  • Enterprise-Lewiston Highway 11: Enterprise to Washington, branch to Flora
  • Baker-Homestead Highway 12: Baker to Idaho
  • Baker-Unity Highway 13: Baker to Unity
  • Crooked River Highway 14: Prineville to Brothers
  • McKenzie Highway 15: Eugene to Redmond
  • Santiam Highway 16: Albany to Sisters
  • McKenzie-Bend Highway 17: Sisters to Bend
  • Willamette Highway 18: Goshen to Crescent
  • Fremont Highway 19: La Pine to California
  • Klamath Falls-Lakeview Highway 20: Klamath Falls to Lakeview
  • Green Springs Highway 21: Ashland to Klamath Falls
  • Crater Lake Highway 22: Medford to Fort Klamath
  • Dairy-Bonanza Highway 23: Dairy to Bonanza
  • Burns-Crane Highway 24: Burns to Crane
  • Redwood Highway 25: Grants Pass to California
  • Mt. Hood Highway 26: Portland to Hood River
  • Alsea Highway 27: Waldport to Philomath
  • Pendleton-John Day Highway 28: Pendleton to John Day extended over former 8
  • Tualatin Valley Highway 29: Portland to McMinnville
  • Salem-Dallas Highway 30: Salem to Dallas
  • Albany-Corvallis Highway 31: Albany to Corvallis
  • Three Rivers Highway 32: Hebo to Valley Junction east end became 39
  • Corvallis-Newport Highway 33: Newport to Corvallis
  • Siuslaw Highway 34: Florence to Junction City
  • Coos Bay-Roseburg Highway 35: Coquille to Dillard
  • Pendleton-Cold Springs Highway 36: Pendleton to Cold Springs
  • Wilson River Highway 37: Tillamook to North Plains
  • Oregon Caves Highway 38: Kerby to Oregon Caves
  • Salmon River Highway 39: Otis to McMinnville east end replaced 32
  • Beaverton-Hillsdale Highway 40: Beaverton to Portland
  • Ochoco Highway 41: Redmond to Dayville
  • Sherman Highway 42: Biggs to Cow Canyon
  • Monmouth-Independence Highway 43: Monmouth to Independence
  • Wapinitia Highway 44: Government Camp to Maupin
  • Umpqua Highway 45: Reedsport to Drain
  • Necanicum Highway 46: Necanicum to Wheeler designated over former 9
  • Wolf Creek Highway 47: Cannon Beach Junction to Portland
  • John Day-Burns Highway 48: John Day to Burns
  • Lakeview-Burns Highway 49: Valley Falls to Burns
  • Klamath Falls-Malin Highway 50: Klamath Falls to California swapped with 4
  • West Portland-Hubbard Highway 51: Portland to Hubbard
  • Oregon-Washington Highway 8: Pendleton to Washington 52 split off

1957

• 123
  • Pacific Highway 1: extended north to Washington
  • Pacific Highway East 1E: both ends truncated, Pacific Highway north of Portland to Pacific Highway south of Salem
  • Pacific Highway West 1W: Pacific Highway East changed to Pacific Highway; south end extended to Pacific Highway near Eugene
  • Columbia River Highway 2: no change?
  • Old Oregon Trail 6: loosened; still goes to Idaho near Nyssa
  • Oregon Coast Highway 9: no change?
  • Baker-Homestead Highway 12: added Pine Valley and Copperfield
  • Santiam Highway 16: loosened
  • Mt. Hood Highway 26: east end moved from Hwy 2 east of Hood River to Hwy 2 west of Hood River
  • Albany-Corvallis Highway 31: loosened
  • Siuslaw Highway 34: Pacific Highway changed to Pacific Highway West
  • Sunset Highway 47: Pacific Highway West changed to Pacific Highway
  • Wilsonville-Hubbard Highway 51: north end truncated from Pacific Highway West to Pacific Highway

1977

• repealed all laws designating highways