U.S. Route 20 in Oregon

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U.S. Highway 20 marker

U.S. Highway 20
Route information
Maintained by ODOT
Length: 451.25 mi[1] (726.22 km)
Major junctions
West end: US 101 in Newport
 
East end: US 20 at the Idaho state line
Location
Counties: Lincoln, Benton, Linn, Jefferson, Deschutes, Lake, Harney, Malheur
Highway system
OR 19 OR 22
US 20 viewpoint of the Three Sisters mountains just east of the town of Sisters, Oregon

U.S. Route 20 (US 20) is a major west–east cross-state highway in the northern part of the U.S. state of Oregon, especially east of the Cascade Mountains. It connects U.S. Route 101 in Newport on the central Oregon Coast to the Idaho state line east of Nyssa.

Route description[edit]

US 20 crossing the Cascade Range at Santiam Pass.

US 20 starts at an intersection with US 101 in Newport, and travels eastward over the Central Oregon Coast Range to Corvallis. In Corvallis, it intersects Oregon Route 99W (OR 99W) and briefly travels concurrent with OR 34 before proceeding northeast to Albany. From Albany, US 20 briefly travels concurrent with OR 99E before turning east through Lebanon and Sweet Home and entering the Cascade Mountains. It intersects OR 126 west of Santiam Pass and the two routes travel concurrent through Sisters. US 20 then continues eastward and southward to Bend, where it travels concurrent with US 97 for about 5 miles (8.0 km) before turning east through Brothers and Riley. At Riley, US 20 travels concurrent with US 395 through Hines and Burns to about 2 miles (3.2 km) northeast of Burns. From Burns, US 20 continues east through Juntura and Vale. In Vale, US 20 travels concurrent with US 26, and the two highways continue east to Cairo Junction, south of Ontario, and turn south, where they then also travel concurrently with OR 201 to Nyssa. Eastward from Nyssa, US 20/US 26 continue to the Idaho state line.

Special routes[edit]

US 20 has 2 business routes in Oregon: one in Toledo, and one in Bend.

Future[edit]

Construction on a portion of US 20 between Newport and Corvallis, specifically, from just west of Chitwood to Eddyville, is being done to straighten and remove nearly 4.5 miles (7.2 km) from the route. Nearly all of the new highway was opened in October 2016, with just a small portion of new road at the west end, and further environmental remediation, to be completed in 2017.[2] The project made it easier for larger vehicles to travel, provided greater passing opportunities, and upgraded the highway to modern safety standards. Construction began in 2005, but was halted in 2007 because of excessive unexpected landslides. The project recommenced in May 2008 with a better plan for stabilizing these landslide locations. The final construction was expected to be completed in 2011, but continuing earth movement at four of the bridge sites delayed the project again. The Oregon Department of Transportation (ODOT) and the contractor were in a dispute over liability and money, a settlement was agreed upon, and the original design-build contract was rescinded. ODOT assumed control of the project and began completing the project in five phases, replacing the troublesome bridges with earth fill. Because of the previous delays, completion of the project was postponed until fall of 2016 for traffic on the road section, and late summer of 2017 for habitat improvement. The project is now estimated to cost $365.7 million.[3]

Oregon highway designations[edit]

The Oregon section of US 20 consists of the following highways numbered using ODOT's internal numbering system (see Oregon highways and routes), from west to east:

Major intersections[edit]

Milepoints are as reported by ODOT and do not necessarily reflect current mileage. Z indicates overlapping mileage due to construction longer than established route, and – indicates negative mileage behind established beginning point.[5] For routes traversing multiple named state highways, each milepoint is preceded by the corresponding state highway number. 

County Location[4] Milepoint[4] Destinations Notes
Lincoln Newport 33 0.00 US 101 south – Waldport, Florence
US 101 north – Depoe Bay, Lincoln City
33 5.62
US 20 Bus. east – Toledo
33 5.74 OR 229 – Siletz, Toledo
33 7.49
US 20 Bus. west – Toledo
33 10.34 Pioneer Mountain summit, elevation 377 feet (115 m)
33 23.18 OR 180 east (Eddyville–Blodgett Road) – Nashville, Summit
33 31.08 Cline Hill summit, elevation 770 feet (230 m)
Benton 33 38.28 Dudley Hill summit, elevation 860 feet (260 m)
33 39.39 OR 180 west (Eddyville–Blodgett Highway) – Summit, Nashville
33 41.78 Gellately Hill summit, elevation 789 feet (240 m)
33 44.57 OR 223 north – Wren, Kings Valley
33 49.73 OR 34 west – Alsea, Waldport Western end of concurrency with OR 34
Corvallis 33 55.67
91 (2)84.07
OR 34 east to I-5 Interchange; eastern end of concurrency with OR 34; eastbound exit and westbound entrance
OR 99W south – Junction City, Eugene Interchange; western end of concurrency with OR 99W; westbound exit and eastbound entrance
91 (2)83.42
210 –0.05
OR 99W north (NW 3rd Street) – Monmouth, McMinnville Eastern end of concurrency with OR 99W
210 0.00
31 0.10
To OR 34 east / I-5 – Lebanon
BentonLinn
county line
Albany 31 10.44 Willamette River
Linn 31 11.28
58 2.25
OR 99E south (Pacific Boulevard SW) – Junction City Western end of concurrency with OR 99E
58 (2)1.45
16 –0.03
OR 99E north to I-5 north – Salem, Portland Eastern end of concurrency with OR 99E; eastbound exit and westbound entrance
16 1.04–
16 1.08
I-5 – Eugene, Roseburg, Salem, Portland Exit 233 on I-5
16 6.55 OR 226 east – Crabtree, Scio, Lyons
Lebanon 16 12.80 OR 34 west – Corvallis
Sweet Home 16 27.07 OR 228 west (Holley Road) – Brownsville, Halsey
16 31.19 Viewpoint (Foster Lake)
16 46.93 Historical marker (Santiam Wagon Road)
16 63.64 Tombstone Pass summit, elevation 4,236 feet (1,291 m)
16 71.52 OR 126 west (McKenzie Highway) – Springfield, Eugene Western end of Route 126 concurrency
16 74.90 OR 22 west – Detroit, Salem
LinnJefferson
county line
16 80.77 Santiam Pass summit, elevation 4,817 feet (1,468 m)
Jefferson 16 84.57 Viewpoint (Mount Washington)
Deschutes 16 99.53 Historical marker (Santiam Pass Road)
Sisters 16 100.12
15 Z92.03
OR 242 west – McKenzie Pass
15 93.07
17 0.00
OR 126 east – Redmond, Prineville Eastern end of concurrency with OR 126
17 9.09–
17 9.18
Viewpoint
Bend 17 18.51
US 97 / US 97 Bus. begins
Interchange; western end of concurrency with US 97 Bus.; eastbound entrance from US 97 south; westbound entrance from US 97 north
17 19.86 US 97 south – Mt. Bachelor, Klamath Falls Interchange; eastbound exit only
US 97 north – Redmond, Portland Interchange; westbound exit only
17 20.99
7 0.51

US 97 Bus. south (NE 3rd Street) – Klamath Falls
Eastern end of concurrency with US 97 Bus.
7 19.95 Historical marker (prehistoric river)
7 20.56 Horse Ridge summit, elevation 4,291 feet (1,308 m)
7 35.65 OR 27 north – Prineville Reservoir
Lake
No major junctions
Harney 7 103.03 Historical marker (Bannock War)
7 104.69 US 395 south – Wagontire, Valley Falls, Lakeview Western end of concurrency with US 395
Burns 7 131.50 OR 78 east (East Monroe Street) – Crane, Winnemucca
7 134.29 US 395 north – John Day, Pendleton Eastern end of concurrency with US 395
7 144.25 Historical marker (Fort Harney)
7 155.09 Historical marker (Great Basin)
7 160.79 Stinkingwater Pass, elevation 4,848 feet (1,478 m)
7 177.54 Drinkwater Pass, elevation 4,212 feet (1,284 m)
Malheur 7 232.99 Vines Hill summit, elevation 2,886 feet (880 m)
7 238.78 Graham Boulevard (OR 451) – Bully Creek Reservoir
Vale 7 245.46 Graham Boulevard (OR 451)
7 246.39 US 26 west (Glenn Street North) – Unity, John Day Western end of concurrency with US 26
7 253.48 Viewpoint (Trenkel Hill vista)
Cairo Junction 7 258.20 OR 201 north to I-84 – Ontario Western end of concurrency with OR 201
Nyssa 7 265.97 OR 201 south – Adrian, Lake Owyhee Eastern end of Route 201 concurrency
7 266.82 US 20 / US 26 east – Nampa, Boise Continuation into Idaho across Snake River
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]

References[edit]

  1. ^ "US Route 20 in Oregon". 
  2. ^ Lehman, Chris. "New Stretch Of Oregon Highway Opens A Decade After Ground Was Broken". www.opb.org. Retrieved 2017-01-30. 
  3. ^ "The US 20 Project Background and History". Oregon Department of Transportation. Retrieved 11 May 2016. 
  4. ^ a b Road Inventory and Classification Services Unit. "Straightline Charts". Transportation Development Division, Oregon Department of Transportation. Retrieved September 22, 2016. 
  5. ^ Road Inventory and Classification Services Unit. "Straightline Chart Legend" (PDF). Transportation Development Division, Oregon Department of Transportation. Retrieved August 29, 2015. 

External links[edit]


U.S. Route 20
Previous state:
Terminus
Oregon Next state:
Idaho