# U.S. Route 30 in Oregon

U.S. Route 30 (US 30) in the U.S. state of Oregon is a major east–west United States Numbered Highway that runs from its western terminus in Astoria to the Idaho border east of Ontario. West of Portland, US 30 generally follows the southern shore of the Columbia River; east of Portland, the highway has largely been replaced with Interstate 84 (I-84), though it is signed all the way across the state, and diverges from the I-84 mainline in several towns as a de facto business route. (The state of Oregon does not sign Interstate business routes; instead, it uses the designations US 30 and Oregon Route 99 [OR 99; along the I-5 corridor] for this purpose.) Out of all the states US 30 traverses, it spends the most time in Oregon. At 477.02 miles (767.69 km), it is also the longest road in the state.

## Route description
### Astoria to Portland

US 30 begins in Astoria, at an intersection with US 101. US 101 southbound from the intersection goes down the length of the Oregon Coast while northbound US 101 crosses the Astoria–Megler Bridge into Washington. US 30 proceeds east through the intersection, through downtown Astoria, and then along the southern bank of the Columbia River.
East of Astoria, US 30 is known as the Lower Columbia River Highway No. 2W, a designation which it carries until Portland.
Between Astoria and Portland, the highway passes through (or by) numerous Columbia River towns, such as Svensen, Knappa, Wauna, and Westport. In Westport, one can use the Wahkiakum County ferry to cross the Columbia River to Puget Island and Cathlamet, Washington.
Continuing east, the highway passes through the communities of Woodson and Clatskanie. East of Clatskanie, the highway runs inland from the river a bit, approaching the town of Rainier.
Just before Rainier is an interchange providing access to the Lewis and Clark Bridge, which crosses the Columbia River to Longview, Washington. After Rainier, the highway turns south, following a bend in the river, and runs parallel to I-5 (which is across the river on the Washington side). Towns along the way include Goble, Deer Island, Columbia City, and St. Helens.
South of Deer Island, US 30 becomes an expressway, known locally as St. Helens Road. The highway proceeds through the towns of Warren, Scappoose, and Burlington (as well as passing by the access road to Sauvie Island) before entering Portland. East of Scappoose is the confluence of the Columbia and Willamette rivers.

### Portland area

In northwest Portland, US 30 is sandwiched between Forest Park to the west and the Willamette River to the east. South of the Linnton area, US 30 Bypass (US 30 Byp.; Northeast Portland Highway No. 123) heads east across the St. Johns Bridge. US 30 continues south along St. Helens Road and then later on Yeon Avenue through an industrial area as it approaches Downtown Portland. On the edge of Downtown Portland, US 30 briefly becomes a freeway, utilizing part of the route of the canceled I-505, until its interchange with I-405 at the western end of the Fremont Bridge.
US 30 crosses the Fremont Bridge (along with I-405) on the Stadium Freeway No. 61; at the eastern end of the bridge, it joins I-5 south for approximately one mile (1.6 km) on the Pacific Highway No. 1 and then joins the Banfield Expressway (I-84), where it becomes the Columbia River Highway No. 2. For the remainder of its route in the Portland area, US 30 shares an alignment with I-84. I-84 passes through the eastern Portland suburbs of Fairview, Wood Village, Gresham, and Troutdale in this fashion. US 30 Byp. rejoins US 30 in Wood Village.
US 30 Business (US 30 Bus.) was a spur from US 30 Byp. northeast of Downtown Portland, across I-84/US 30 to OR 99E east of Downtown Portland, just east of the Burnside Bridge. It has not rejoined US 30 on its west end since US 30 was moved onto I-405 and I-5 around Downtown Portland.

### East of Portland

US 30 runs mostly along I-84 in Oregon east of Portland, diverting to short segments of the old surface route to act as a business or scenic route for I-84:
* Historic Columbia River Highway No. 100 for one mile (1.6 km) through Cascade Locks (also designated the Cascade Locks Highway)
* Mount Hood Highway No. 26 for three miles (4.8 km) through Hood River
* Historic Columbia River Highway No. 100 and Mosier-The Dalles Highway No. 292 for 20 miles (32 km) from Mosier to The Dalles
* Pendleton Highway No. 67 for seven miles (11 km) through Pendleton
* La Grande-Baker Highway No. 66 for five miles (8.0 km) through La Grande
* La Grande-Baker Highway No. 66 for 22 miles (35 km) from North Powder to Baker City
* Huntington Highway No. 449 for eight miles (13 km) through Huntington
* Ontario Spur No. 493 for one mile (1.6 km) from Ontario to the Idaho state line
The sections concurrent with I-84 are part of the Columbia River Highway No. 2 west of US 730 at Boardman and part of the Old Oregon Trail Highway No. 6 east of US 730.
There is also a US 30 Bus. signed in the Ontario area. This is part of the Olds Ferry-Ontario Highway No. 455.

## History

Sections of the highway between The Dalles and Ontario generally follow the route of the Oregon Trail, which was used in the 19th century by U.S. settlers to reach the Willamette Valley. US 30 was created as part of the initial U.S. Numbered Highway System adopted by the American Association of State Highway Officials on November 11, 1926. The number was assigned in place of US 20, which had originally been planned for the corridor in Oregon, after objections from the state government. The new national highway incorporated portions of existing state roads, including the Historic Columbia River Highway, which was constructed between 1913 and 1922 through the Columbia River Gorge.
Before the Banfield Expressway was built, the Portland section of US 30 ran on St. Helens Road to the Willamette Heights section of Portland, then on Wardway Street, then Vaughn Street, then Northwest 18th & 19th avenues, then Burnside Street, and then Sandy Boulevard toward Troutdale. Several sections of the old highway use brown road markers with "Historic US 30" that were installed in the 21st century. The Interstate Highway System, approved by the federal government in 1956, included construction of a freeway in Oregon along the US 30 corridor between Portland and Ontario; it was later numbered I-80N (now I-84). The Oregon state government unsuccessfully proposed an extension to cover the rest of US 30 between Astoria and Portland in the 1950s and 1960s, which was two lanes wide and in need of funding for improvements.
The 104-mile (167 km) Astoria–Portland section had been rebuilt with fewer curves by the 1960s but remained congested due to its use as a tourist route as well as a bypass of US 99 (and I-5) upon the removal of tolls from the Lewis and Clark Bridge near Longview, Washington. In 1969, the state government announced plans to widen the highway between Burlington and the Columbia County border but declined to fund further projects in favor of improvements in the Portland area. The state later withdrew its proposals to upgrade the entire section to an expressway, stating that US 30 was meant to serve local traffic and could be improved to a four-lane highway instead. A project to widen US 30 near Scappoose and Warren in the 1970s was delayed by a decade due to disagreements between the state and local governments over its routing and an attempt to build a full bypass. The highway remained slightly more accident-prone than others in Oregon; from 1987 to 1992, a total of 22 crashes on 50 miles (80 km) of US 30 in Columbia County resulted in 26 deaths and 769 injuries.
In 1988, US 30 was realigned along Northwest Yeon Avenue in Portland to alleviate residential congestion. The new route utilized an interchange with I-405 that was intended for a proposed I-505. The proposed Interstate was intended to be a 3.17-mile (5.10 km) freeway spur in northwest Portland that would have connected I-405 to St. Helens Road, the latter being the original route for US 30. Funding for the freeway was withdrawn by the city government in November 1978, as it would have required condemnation and rerouting streets on a swath of land through the Northwest Industrial neighborhood. The federal government formally approved the project's cancelation in December 1979 and reallocated funds to other transportation improvements in the area.
In the 2010s, the city of Scappoose proposed the construction of a bypass to carry US 30 around the city. A similar proposal was defeated in 1971 following protests from residents over its disruption to future potential development. The $5.5-million (equivalent to $31.7 million in 2023) allocation for the bypass project was redistributed by the state to improve other sections of US 30 in Columbia County.

## Major intersections

| County | Location | mi | km | Exit | Destinations | Notes |
| Clatsop | Astoria | 0.00 | 0.00 | | US 101 / Lewis and Clark Trail to US 26 – Seaside, Ilwaco, Long Beach | |
| Clatsop | Westport | 26.81 | 43.15 | | Westport Ferry Road – Wahkiakum County Ferry | |
| Columbia | Clatskanie | 35.77 | 57.57 | | OR 47 south – Mist, Vernonia, Jewell | |
| Columbia | Rainier | 47.72 | 76.80 | | Longview, Seattle (via Lewis and Clark Bridge) | Interchange |
| Columbia | St. Helens | | | | US 30 Bus. | |
| Columbia | St. Helens | | | | US 30 Bus. | |
| Multnomah | ​ | 83.2 | 133.9 | | OR 127 (Cornelius Pass Road) | |
| Multnomah | Portland | 89.34 | 143.78 | | US 30 Byp. east (St. Johns Bridge) / Lewis and Clark Trail | |
| Multnomah | Portland | 93.91 | 151.13 | | Nicolai Street – Montgomery Park | |
| Multnomah | Portland | 93.91 | 151.13 | Western end of freeway | Western end of freeway | Western end of freeway |
| Multnomah | Portland | 94.19 | 151.58 | | Vaughn Street | Westbound exit and eastbound entrance |
| Multnomah | Portland | 94.52– 94.81 | 152.12– 152.58 | | I-405 south to US 26 – Portland City Center, Beaverton, Salem | Western end of I-405 overlap |
| Multnomah | Portland | 95.05 | 152.97 | Fremont Bridge over the Willamette River | Fremont Bridge over the Willamette River | Fremont Bridge over the Willamette River |
| Multnomah | Portland | 95.30 | 153.37 | | Kerby Avenue | Eastbound exit and westbound entrance |
| Multnomah | Portland | 95.30– 95.73 | 153.37– 154.06 | | I-5 north – Seattle | Eastern end of I-405 overlap; western end of I-5 overlap |
| Multnomah | Portland | 96.29 | 154.96 | 302A | Broadway, Weidler Street – Rose Quarter, Portland City Center | |
| Multnomah | Portland | 96.60 | 155.46 | | Oregon Convention Center, Rose Quarter | Westbound exit only |
| Multnomah | Portland | 96.73 | 155.67 | | I-5 south – Beaverton, Salem, Portland City Center | Eastern end of I-5 overlap; western end of I-84 overlap |
| Multnomah | Portland | 97.19 | 156.41 | | OR 99E | Eastbound entrance only |
| Multnomah | Portland | 97.65 | 157.15 | 1 | Lloyd Center | Westbound exit and eastbound entrance |
| Multnomah | Portland | 98.89 | 159.15 | 1 | 33rd Avenue | Eastbound exit and westbound entrance |
| Multnomah | Portland | 99.28 | 159.78 | 2 | César E Chávez Boulevard, 43rd Avenue | Former US 30 Bus. |
| Multnomah | Portland | 100.42 | 161.61 | 3 | 58th Avenue | Eastbound exit and westbound entrance |
| Multnomah | Portland | 100.99 | 162.53 | 4 | Halsey Street, 68th Avenue | Eastbound exit only |
| Multnomah | Portland | 101.74 | 163.73 | 5 | OR 213 (82nd Avenue) | Eastbound exit and westbound entrance |
| Multnomah | Portland | 102.49 | 164.94 | 6 | I-205 south – Salem | Eastbound exit and westbound entrance |
| Multnomah | Portland | 102.59 | 165.10 | 7 | Halsey Street – Gateway District | Eastbound exit only |
| Multnomah | Portland | 103.32 | 166.28 | 8 | I-205 north / Lewis and Clark Trail – Seattle, Portland Airport | Eastbound exit and westbound entrance |
| Multnomah | Portland | 103.47 | 166.52 | 9 | 102nd Avenue – Parkrose | Eastbound exit and westbound entrance |
| Multnomah | ​ | 103.83 | 167.10 | 9 | I-205 – Seattle, Salem | Westbound exit and eastbound entrance |
| Multnomah | Fairview | 108.81 | 175.11 | 14 | Fairview Parkway (to US 30 Byp. west) | |
| Multnomah | Dodson | 129.54 | 208.47 | 35 | Historic Columbia River Highway west – Ainsworth State Park | |
| Hood River | Cascade Locks | 137.78 | 221.74 | | I-84 east – The Dalles | Eastbound exit and westbound entrance; eastern end of I-84 overlap |
| Hood River | Cascade Locks | 138.24 | 222.48 | | Bridge of the Gods – Stevenson | |
| Hood River | Cascade Locks | 139.06 | 223.80 | | Forest Lane (Historic Columbia River Highway east) | |
| Hood River | Cascade Locks | 139.89 | 225.13 | | I-84 west – Portland | Westbound exit and eastbound entrance; western end of I-84 overlap |
| Hood River | Cascade Locks | 141.87 | 228.32 | 47 | Forest Lane (Historic Columbia River Highway west) – Herman Creek | Westbound exit and eastbound entrance |
| Hood River | Hood River | 156.37 | 251.65 | | I-84 east / Lewis and Clark Trail – The Dalles | Eastern end of I-84 overlap |
| Hood River | Hood River | 157.81 | 253.97 | | 13th Street (OR 281) | |
| Hood River | ​ | 158.95 | 255.81 | | OR 35 / Historic Columbia River Highway State Trail east – Odell, Parkdale, Mount Hood | |
| Hood River | Hood River | 159.27– 159.53 | 256.32– 256.74 | | I-84 west / Lewis and Clark Trail / Hood River Bridge – Portland, Bingen, White Salmon | Western end of I-84 overlap |
| Wasco | Mosier | 164.47 | 264.69 | | I-84 east / Lewis and Clark Trail – The Dalles | Eastern end of I-84 overlap |
| Wasco | Mosier | 164.84 | 265.28 | | Historic Columbia River Highway State Trail west | |
| Wasco | Rowena | 173.83 | 279.75 | | To I-84 – The Dalles, Hood River, Mayer State Park | |
| Wasco | ​ | 176.55 | 284.13 | | To I-84 – Port of The Dalles | |
| Wasco | The Dalles | 181.19 | 291.60 | | I-84 / Lewis and Clark Trail – Pendleton, Portland, Port of The Dalles | Interchange |
| Wasco | The Dalles | 183.16 | 294.77 | | To I-84 | Interchange |
| Wasco | The Dalles | 184.66 | 297.18 | | US 197 south – Dufur, Bend | Western end of US 197 overlap |
| Wasco | The Dalles | 184.90– 185.15 | 297.57– 297.97 | | I-84 west / US 197 north / Lewis and Clark Trail – The Dalles, Portland, Yakima | Eastern end of US 197 overlap; west end of I-84 overlap |
| Wasco | ​ | 195.06 | 313.92 | 97 | OR 206 – Celilo Park, Deschutes State Park | |
| Sherman | ​ | 202.48 | 325.86 | 104 | US 97 – Yakima, Bend | |
| Gilliam | Arlington | 235.74 | 379.39 | 137 | OR 19 – Arlington, Condon | |
| Gilliam | ​ | 245.27 | 394.72 | 147 | OR 74 – Ione, Heppner | |
| Morrow | ​ | 265.87 | 427.88 | 168 | US 730 / Lewis and Clark Trail – Irrigon | |
| Umatilla | ​ | 277.37 | 446.38 | 179 | I-82 west – Hermiston, Umatilla, Kennewick | |
| Umatilla | ​ | 280.78 | 451.87 | 182 | OR 207 – Hermiston, Lexington | |
| Umatilla | ​ | 286.76 | 461.50 | 188 | US 395 north – Stanfield, Echo, Hermiston | Western end of US 395 overlap |
| Umatilla | ​ | 291.45 | 469.04 | 193 | Echo Road (Lexington–Echo Highway) – Echo, Lexington | |
| Umatilla | Pendleton | 305.02 | 490.88 | | I-84 east / US 395 south – La Grande | Eastern end of I-84 overlap |
| Umatilla | Pendleton | 307.13 | 494.28 | | OR 37 north – Holdman | |
| Umatilla | Pendleton | 307.66 | 495.13 | | To US 395 south – Pilot Rock, John Day | |
| Umatilla | Pendleton | 308.97 | 497.24 | | OR 11 south to I-84 / US 395 – Portland, La Grande | Western end of OR 11 overlap |
| Umatilla | Pendleton | 309.67 | 498.37 | | OR 11 north – Milton-Freewater, Walla Walla | Eastern end of OR 11 overlap |
| Umatilla | ​ | 310.38 | 499.51 | | Mission Road – Mission, Indian Agency, Gibbon | Interchange; eastbound exit and westbound entrance |
| Umatilla | ​ | 311.65 | 501.55 | | I-84 west – Portland | Western end of I-84 overlap; westbound exit and eastbound entrance |
| Umatilla | ​ | 314.33 | 505.87 | 216 | Milton-Freewater, Walla Walla (OR 331) | |
| Union | ​ | 351.11 | 565.06 | 252 | OR 244 – Starkey, Ukiah | |
| Union | ​ | 357.47 | 575.29 | | I-84 east – Baker City, Ontario | Eastern end of I-84 overlap; eastbound exit and westbound entrance |
| Union | La Grande | 359.74 | 578.95 | | OR 82 to I-84 – Elgin, Wallowa Lake | |
| Union | ​ | 362.86– 363.27 | 583.97– 584.63 | | I-84 west / OR 203 south – Pendleton, Union | Western end of I-84 overlap |
| Union | North Powder | 383.52– 383.70 | 617.22– 617.51 | | I-84 east / OR 237 – Baker City, North Powder | Eastern end of I-84 overlap |
| Baker | Baker City | 403.17 | 648.84 | | OR 7 north to I-84 – Richland, La Grande, Hells Canyon | Western end of OR 7 overlap |
| Baker | Baker City | 403.41 | 649.23 | | OR 7 south – Salisbury, Unity, John Day | Eastern end of OR 7 overlap |
| Baker | ​ | 405.84 | 653.14 | | I-84 west – La Grande | Western end of I-84 overlap |
| Baker | ​ | 441.58 | 710.65 | | I-84 east – Ontario | Eastern end of I-84 overlap; eastbound exit and westbound entrance |
| Baker | ​ | 444.84 | 715.90 | | I-84 – Baker City, Ontario | Interchange |
| Malheur | ​ | 452.67 | 728.50 | | I-84 west – Baker City | Western end of I-84 overlap |
| Malheur | ​ | 455.55 | 733.14 | 356 | OR 201 – Weiser | Former US 30N east |
| Malheur | ​ | 473.93 | 762.72 | 374 | OR 201 (US 30 Bus. east) to US 20 / US 26 – Ontario, Weiser, Vale | |
| Malheur | Ontario | 476.02– 476.28 | 766.08– 766.50 | | I-84 east / US 30 Bus. west to US 20 / US 26 – Boise, Ontario, Vale | |
| Malheur | Ontario | 477.02 | 767.69 | | US 30 east – Fruitland | Bridge over the Snake River (state line); continuation into Idaho |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Incomplete access Tolled |||||||