Interstate 5 in Oregon

Last updated

I-5.svg
Interstate 5
National Purple Heart Trail
Korean War Veterans Memorial Highway
Interstate 5 in Oregon
Map of Western Oregon with I-5 highlighted in red
Route information
Maintained by ODOT
Length308.14 mi [1]  (495.90 km)
ExistedAugust 14, 1957 [2] [3] –present
HistoryCompleted in 1966
NHSEntire route
Major junctions
South endI-5 (1961).svg I-5 at California state line near Ashland
Major intersections
North endI-5.svg I-5 at Washington state line in Portland
Location
Country United States
State Oregon
Counties Jackson, Josephine, Douglas, Lane, Linn, Marion, Clackamas, Washington, Multnomah
Highway system
← OR 3.svg OR 3 → OR 6.svg OR 6

Interstate 5 (I-5) in the U.S. state of Oregon is a major Interstate Highway that traverses the state from north to south. It travels to the west of the Cascade Mountains, connecting Portland to Salem, Eugene, Medford, and other major cities in the Willamette Valley and across the northern Siskiyou Mountains. The highway runs 308 miles (496 km) from the California state line near Ashland to the Washington state line in northern Portland, forming the central part of Interstate 5's route between Mexico and Canada.

Contents

I-5 was designated in 1957 and replaced U.S. Route 99 (US 99) for most of its length, itself preceded by the Pacific Highway and various wagon roads. The freeway incorporated early bypasses and expressways built for US 99 in the 1950s, including a new freeway route from Portland to Salem, and additional bypasses were built using federal funds. The last segment of I-5, on the Marquam Bridge in Portland, was opened in October 1966 and the whole highway was dedicated later that month. The freeway remains parallel or concurrent to Oregon Route 99 (OR 99) and its spur routes, running along former segments of US 99 that were bypassed by I-5, from Ashland to Portland.

Under Oregon's named route system, all of I-5 is designated as Pacific Highway No. 1. The Salem–Portland section was named the Baldock Freeway until 2022. The freeway also has three signed auxiliary routes that function as spurs and bypasses of major cities: I-105 in Eugene, I-205 in eastern Portland, I-405 in downtown Portland. Two additional auxiliary routes were planned in the early years of the Interstate system, but were shelved after local opposition.

Route description

Interstate 5 is the second-longest freeway in Oregon, at 308 miles (496 km), and is the only Interstate to traverse the state from north to south. [4] The highway connects several of the state's largest metropolitan areas, which lie in the Rogue and Willamette valleys, [5] and passes through counties with approximately 81 percent of Oregon's population. [6] As a component of the Interstate Highway System, I-5 is also designated as an important highway under the National Highway System. [7] [8] It is officially designated under Oregon's named route system as the Pacific Highway No. 1, a name shared with Oregon Route 99 (OR 99) and its split routes north of Junction City. [9] OR 99 runs concurrent to I-5 through most of southern Oregon, splitting from the freeway to serve city centers and use other alternate routes, while OR 99W and OR 99E serve corridors on opposite sides of the Willamette River. [5] The state legislature also designated I-5 as the Purple Heart Trail and Korean War Veterans Memorial Highway in 2015. [10] [11]

I-5 is maintained by the Oregon Department of Transportation (ODOT), who conduct an annual survey of traffic volume that is expressed in terms of annual average daily traffic (AADT), a measure of traffic volume for any average day of the year. The highway's busiest section is near Durham between junctions with I-205 and OR 217, carrying an average of 164,000 vehicles daily in 2017. The least-traveled section of I-5 is located near Ashland and carries only around 16,600 vehicles daily. [9]

California to Eugene

Aerial view of Interstate 5 in downtown Medford, where it travels on an elevated viaduct Medford Viaduct.jpg
Aerial view of Interstate 5 in downtown Medford, where it travels on an elevated viaduct

I-5 enters Oregon at the California state line in southern Jackson County. The highway travels northeast along a ridge in the Siskiyou Mountains, with a maximum grade of 6 percent, to Siskiyou Summit; [12] at 4,310 feet (1,310 m), it is the highest point on all of I-5 and one of the highest points on the Interstate system. [13] The mountainous, 11-mile (18 km) section of the freeway runs along Siskiyou Pass and includes several runaway truck ramps and chain-up areas due to its heavy use by trucks and its foggy and snowy conditions in winter. [13] [14] North of the summit, the freeway intersects the Old Siskiyou Highway (OR 273) and the Pacific Crest Trail before it travels out of the Rogue River–Siskiyou National Forest. [15] [16]

The highway descends from the mountains into the Rogue Valley and intersects the south end of OR 99 west of Emigrant Lake, adjacent to a railroad underpass. I-5 follows OR 99 and passes a rest area and welcome center before entering the city of Ashland. [17] The freeway crosses OR 66 west of the city's municipal airport and follows Bear Creek around the north side of downtown Ashland. I-5 and OR 99 run parallel each other on opposite sides of Bear Creek through Talent and Phoenix to Medford, at the center of the Rogue Valley and its winery region. [18] [19] The freeway runs through downtown Medford on a 3,229-foot (984 m) elevated viaduct with no exits to the city center. [20] [21] It then intersects OR 62 at the Rogue Valley Mall, providing access to Crater Lake and Mount McLoughlin northeast of the valley. The freeway continues northwest, passing Rogue Valley International–Medford Airport and the suburb of Central Point before turning west to follow the Rogue River. [5] [15]

I-5 follows the Rogue River downstream through a narrow valley, where OR 99 and a railroad cross over and under the freeway several times, and passes Valley of the Rogue State Park. It also passes the Oregon Vortex, a popular roadside attraction near Gold Hill. [19] At the west end of the valley in Josephine County, the freeway reaches Grants Pass and intersects U.S. Route 199 (US 199), which connects to Crescent City, California, on the Pacific Coast. [5] [22] The freeway continues along the northeast edge of Grants Pass and becomes concurrent with OR 99 at an interchange north of the city. I-5 splits from the Rogue River and continues north along a zig-zag course across several passes and valleys in the Southern Oregon Coast Range. At Wolf Creek, it passes a historic inn and tavern that is listed on the National Register of Historic Places. [19] The freeway crosses into Douglas County near Stage Road Pass east of Glendale and turns northeast to follow the Cow Creek valley before resuming its northern course through the mountains. After descending from Canyon Creek Pass and following Canyon Creek, I-5 reaches Canyonville and passes the Seven Feathers Casino Resort. [19] The freeway follows the South Umpqua River through Myrtle Creek and the Cow Creek Reservation, with OR 99 splitting to serve Winston. I-5 intersects OR 42 east of Winston in Green and continues north into the outskirts of Roseburg. [5] [15]

Within Roseburg, the freeway runs along the west bank of the South Umpqua River opposite from the city's downtown and passes through several residential neighborhoods near the regional airport. At Harvard Avenue, I-5 begins a concurrency with OR 138 that continues for 12 miles (19 km) to Sutherlin, running parallel to OR 99 as the highways cross the North Umpqua River. OR 99 rejoins I-5 between Oakland and Yoncalla in the Cabin Creek canyon, but splits off again to serve the Pass Creek valley while I-5 remains in the Pleasant Valley. The two highways are rejoined at Anlauf and continue northeast along Pass Creek towards Cottage Grove in Lane County. The freeway runs through the eastern outskirts of Cottage Grove and continues north along the Coast Fork Willamette River into the Willamette Valley, trading the mountainous terrain of southern Oregon for rolling hills and farms. At Goshen, I-5 intersects OR 58 and passes the Lane Community College campus before entering Eugene. [5] [15]

Eugene to Wilsonville

The Whilamut Passage Bridge, a pair of arch bridges that carry I-5 over the Willamette River in Eugene Willamette River Bridge Shippey (23145371664).jpg
The Whilamut Passage Bridge, a pair of arch bridges that carry I-5 over the Willamette River in Eugene

I-5 continues north into Eugene, running along the city's eastern border with Springfield, and intersects OR 225 at Coryell Pass. OR 99 then splits from the freeway travels west along OR 126 Business into downtown Eugene, serving the University of Oregon campus, and continues north to Junction City, where it splits into OR 99W and OR 99E. [5] The freeway then travels over the Whilamut Passage Bridge, a pair of concrete arch bridges that span 1,985 feet (605 m) across the Willamette River west of downtown Springfield. [23] On the north side of the river near the Gateway Mall, it intersects I-105, providing freeway access to downtown Eugene, and OR 126. At the north end of Eugene, intersects Beltline Road in a partial cloverleaf interchange with direct ramps to the western freeway, which carries OR 569 around Eugene. [5] [15]

The freeway leaves Eugene after crossing the McKenzie River at Armitage Park south of Coburg. I-5 continues north along OR 99E through rural Linn County, intersecting OR 228 near Brownsville and OR 34 west of Lebanon, before the two highways reach Albany. The freeway skirts the east side of the city, where it intersects US 20, and begins a concurrency with OR 99E. I-5 and OR 99E then intersect the south and north ends of OR 164 near Millersburg and the Ankeny National Wildlife Refuge. [5] The freeway continues northeast and passes the Enchanted Forest amusement park and several wineries before reaching the southern outskirts of Salem. [15] [19]

The freeway travels around McNary Field and intersects OR 22 at Mission Street, near the Corban University campus southeast of downtown Salem. I-5 and OR 99E continue north through suburban Salem, passing the Oregon State Penitentiary and Oregon State Hospital campus, which is located two miles (3.2 km) east of the Oregon State Capitol and Willamette University. Between the Willamette Town Center shopping mall and the Oregon State Fairgrounds, the freeway intersects the south end of OR 213, a local highway that parallels I-5 to the east towards the Portland area. [5] OR 99E splits from I-5 at an interchange with Portland Road, located west of the Chemeketa Community College campus in Hayesville. The freeway continues northwest into Keizer and intersects Salem Parkway, a divided highway carrying OR 99E Business, at an interchange that straddles the 45th parallel (marked with a sign in the median). [15] [24]

I-5 continues northeast from the interchange, passing the Keizer Station complex and the minor-league Volcanoes Stadium before leaving the suburban fringes of Keizer. The freeway continues north along OR 99E and the former Oregon Electric Railway, passing the Powerland Heritage Park and Oregon Electric Railway Museum near Brooks. At the Woodburn Premium Outlets mall west of Woodburn, I-5 intersects the dual termini of OR 214 and OR 219, which provide access to Silverton and Newberg, respectively. [5] [19] It reaches a junction with OR 551 north of Aurora State Airport and adjacent to the French Prairie rest area, which includes a seven-acre (2.8 ha) solar power array with 7,000 panels. [25] [26] North of the interchange, I-5 crosses the Willamette River on the Boone Bridge and enters the city of Wilsonville, at the edge of the Portland metropolitan area. [15]

Portland area

Aerial view of Interstate 5 at its interchange with I-405 in Downtown Portland, as seen from the Portland Aerial Tram. Marquam Interchange and Portland skyline from Aerial Tram.jpg
Aerial view of Interstate 5 at its interchange with I-405 in Downtown Portland, as seen from the Portland Aerial Tram.

The highway bisects downtown Wilsonville and its adjacent suburban neighborhoods, continuing north along the WES Commuter Rail line into Tualatin. On the south side of the city, I-5 intersects the south end of I-205, a bypass of Portland serving Oregon City and eastern Portland. The freeway crosses over the Tualatin River into Durham, where it passes the Bridgeport Village shopping center, before entering Tigard and an intersection with OR 217, a major freeway that connects to Beaverton. I-5 then enters Multnomah County and the city of Portland, where it travels around Mount Sylvania and through a meandering course along Barbur Boulevard (part of OR 99W) across several hilltops. [15] In the South Burlingame neighborhood, the freeway begins a fishhook-shaped turn through the "Terwilliger curves", a notoriously dangerous section of I-5 that changes directions five times in one mile (1.6 km). The area averaged about 100 collisions and crashes per year between 1995 and 2005. [27]

I-5 continues north from the Terwilliger curves through South Portland, running uphill from OR 43 on the western bank of the Willamette River and downhill from Barbur Boulevard (now carrying OR 10 and OR 99W). The freeway dives northeasterly towards the South Waterfront district to avoid Marquam Hill, home of the Oregon Health & Science University campus. The lanes of OR 43 are split between Hood and Macadam avenues on west and east sides of I-5 as it crosses under the Portland Aerial Tram and Gibbs Street Pedestrian Bridge. [28] The freeway passes under the Ross Island Bridge (part of US 26) and reaches the southern terminus of I-405, which it intersects in a large Y interchange situated over the light rail tracks of the MAX Orange Line and the Portland Streetcar. [15] [29]

I-5 crosses the Willamette River on the Marquam Bridge, connecting two sides of Portland Portland - panoramio (2).jpg
I-5 crosses the Willamette River on the Marquam Bridge, connecting two sides of Portland

From the interchange, I-405 passes through the western part of Downtown Portland and Harbor Drive continues into downtown along the Willamette River waterfront. [5] I-5 continues northeast over the Willamette River on the double-decked Marquam Bridge, with its northbound lanes on the upper deck and southbound lanes carried on the lower deck. The bridge is the busiest crossing in Oregon, with over 140,000 daily vehicles traveling across it, [30] and runs parallel to the Tilikum Crossing transit bridge and Ross Island Bridge. The east end of the bridge, adjacent to the Oregon Museum of Science and Industry, has a southbound stub ramp that was built to serve the cancelled Mount Hood Freeway. [31] [32] I-5 descends from the bridge and runs north along the Willamette River, following the eastern bank of the river and the Eastbank Esplanade bicycle and pedestrian trail a few blocks west of OR 99E. The freeway crosses over the east end of the Hawthorne Bridge and under the Morrison Bridge, intersecting the latter to provide direct access to Downtown Portland. [15]

After passing under the Burnside Bridge, I-5 intersects the western terminus of I-84, Oregon's lone east–west freeway and the main route through the Columbia River Gorge. [4] [5] After the interchange, US 30 joins I-5 in a short concurrency while the freeway travels around major landmarks in the Rose Quarter, including the Oregon Convention Center, the Moda Center, and the Veterans Memorial Coliseum. At Northeast Holladay Street, the highway passes directly over the MAX Light Rail platforms of the Rose Quarter Transit Center just east of the Steel Bridge, which carries four MAX lines and OR 99W into Downtown Portland. [29] [33] I-5 veers northwest and briefly into a sunken section near the Broadway Bridge, which carries the Portland Streetcar's loop lines. [29] Between the Boise and Eliot neighborhoods, the freeway intersects the terminating I-405 a short distance from the Fremont Bridge, which carries US 30 west into the Pearl District after it splits from I-5. [15] The interchange, located between the Legacy Emanuel Medical Center and Albina railyard, [34] has a set of three stub ramps that were built for the cancelled Rose City Freeway and were re-purposed to serve the hospital. [31]

Through most of North Portland, I-5 runs in a trench that is crossed by several local streets and pedestrian overpasses, connecting Interstate Avenue to the west and Albina Avenue to the east. Interstate Avenue, a part of OR 99W, also carries the MAX Yellow Line through the Overlook, Arbor Lodge, and Kenton neighborhoods. [35] At an interchange with Going Street, the freeway's northbound lanes gain the city's lone high-occupancy vehicle (HOV) lane, which runs for 3.5 miles (5.6 km) to the north end of Delta Park. [36] I-5 continues north and passes Peninsula Park and the Cascade campus of the Portland Community College in the Piedmont neighborhood before reaching an interchange with Lombard Street, which carries the US 30 Bypass. From the Lombard Street interchange, the freeway turns northwest and crosses over the Columbia Slough, reaching Delta Park on the site of the former city of Vanport. [37] The area also includes the Portland International Raceway and Portland Meadows horse racing track, along with several sports fields. At the north end of Delta Park, I-5 intersects the north end of OR 99E and the east end of OR 120, a short local route connecting to the Portland Expo Center (where the MAX Yellow Line terminates) and St. Johns. [5] [35] The freeway continues north onto Hayden Island, where a single exit serves the entire island, and crosses over the Columbia River on the Interstate Bridge into Vancouver, Washington. [15] The Interstate Bridge carries a daily average of 132,000 vehicles and consists of two bridges that lift vertically for river traffic. [38]

History

Predecessor trails and highways

I-5 roughly follows the Siskiyou Trail, an early trading route used by indigenous Oregonians and early trappers between the Willamette Valley and California. [39] [40] The trail was re-purposed as a settler's route in 1846, following the creation of the Applegate Trail by the territorial government. [41] It was later incorporated into the early roads of the Willamette Valley, but remained secondary to waterborne transportation along the river and railroads built in the late 19th century. [42] The rising popularity of automobiles at the turn of the century spurred the construction of new highways and the formation of automobile clubs and good roads associations. [43]

The Pacific Highway Association was formed in 1910 to bolster an ongoing campaign to build a highway along the West Coast, from Tijuana to Vancouver, British Columbia. [44] [45] The highway was incorporated into a state highway plan adopted by the Oregon State Highway Commission in 1914, a year after the state legislature had established the commission and a state highway department. [46] The first sections of the 345-mile (555 km) Pacific Highway were initially built by counties through bond issues and other revenue streams. [47] Jackson County was the first to begin construction on its section of the highway, breaking ground on a link between Siskiyou Summit and Medford on November 28, 1913. [48] [49] These early sections were built using compacted dirt, which turned into mud in inclement weather and rendered them impassible. The state government enacted its own revenue sources for highway construction at the end of the decade, including the first state gas tax to be levied in the United States. [46] The Pacific Highway was completed in 1922 and was the first highway to be completely paved from border to border within a state west of the Mississippi River. [46]

Freeway construction

I-5 near Tigard, photographed in 1973 prior to later expansion Traffic Flow on the Salem Freeway of Interstate -5 South of Tigard, Oregon on Sundays Was Reduced to a Fraction of the Normal Load Because of the Sunday Ban on Gasoline Sales During the Fuel Shortage 12-1973 (4271749509).jpg
I-5 near Tigard, photographed in 1973 prior to later expansion

The Oregon state legislature authorized the construction of controlled-access "throughways" (now called freeways) in 1947 and the Pacific Highway was designated as a future corridor the following year. [50] [51] A six-cent gas tax increase was approved by the legislature in 1949 and would be used to improve sections of US 99 to freeway standards. [52] It was later augmented by federal funding under the Interstate Highways program. [53] The State Highway Commission studied and approved the routing of I-5 around several cities in the late 1950s, including an elevated bypass of Medford. [54]

Although not generally referred as such, the portion of I-5 south of Portland near Tigard to Salem was formerly named the Robert Hugh Baldock Freeway after a former Oregon highway engineer. [4] In 2022, the name was removed from state records following the discovery of his membership in the Ku Klux Klan. [55] Early proposals by engineers put the southern section of I-5 further east through Klamath Falls and the flatter Klamath Basin, but the Siskiyou Pass route was favored by local politicians. [56] Most of the highway in the Pacific Northwest was incorporated into U.S. Route 99 (US 99), created as part of a national highway system in 1926. [57] The Oregon section was divided between Junction City and Portland into US 99W and US 99E, with the latter taking the original route of the Pacific Highway. [58] It was completed on December 1, 1961, with direct connections to Harbor Drive in Downtown Portland. [59]

The first modern rest area in Oregon was opened in 1962 between Eugene and Albany; within four years, eight more sets were completed. [46] [60] The first section of the East Bank Freeway in Portland, running 2.5 miles (4.0 km) from the Morrison Bridge to Shaver and Failing streets, opened to traffic on January 7, 1964. [61] [62] The Marquam Bridge, which connected the completed portions of I-5 to the East Bank Freeway, opened to southbound traffic on October 4, 1966, and northbound traffic two weeks later. Its design was criticized by the public and the Portland Art Commission, who described it as "so gross, so lacking in grace, so utterly inconsistent with any concept of aesthetics" in a formal complaint. [63]

The final section of Interstate 5 was dedicated on October 22, 1966, at the Cow Creek rest area. At the time, the freeway had 114 interchanges and 467 bridge structures; it cost an estimated $298 million to construct. [60] [64]

Later history

Aerial view of I-5 near Albany I-5 as it runs through the Willamette Valley (51269494472).jpg
Aerial view of I-5 near Albany

The Salem–Portland section of I-5 was widened to six lanes in the late 1970s and early 1980s. [46] Beginning in 1976, the State Highway Division (now ODOT) experimented with asphalt recycling from construction projects on the I-5 corridor to repave local roads. [65]

The Albany–Salem section was renamed the Atomic Veterans Memorial Highway by the Oregon Legislative Assembly in August 2017. [66] In 2022, ODOT completed an emergency onramp at Mountain Avenue in Ashland to aid in evacuations in the event of a wildfire. [67] The gravel ramp is controlled by a locked gate and was approved for construction following the 2020 Almeda fire, which started in the area and destroyed 2,500 homes. [68]

Future projects

The states of Oregon and Washington began planning of a replacement for the twin spans of the Interstate Bridge in the late 1990s to address regional congestion and disruptions due to the lift span. The Columbia River Crossing program was established in 2004 to design a replacement, which was to be 17 lanes wide over Hayden Island and cost up to $3.5 billion. [69] [70] The program was cancelled in 2013 due to opposition within the Washington state legislature; $200 million had been spent during planning, which included federal funds that would need to be reimbursed unless a new proposal was submitted. [69] A new program, named the Interstate Bridge Replacement, began in 2019 and is expected to publish an environmental impact statement in 2023. [71] The updated design would include an eight-lane toll bridge, a multi-use trail for cyclists and pedestrians, and a MAX Light Rail extension into Vancouver. [72] The bridge replacement is expected to cost up to $2.45 billion, while the entire program—including reconstruction of several interchanges and transit improvements—is estimated to cost $5.5 billion to $7.5 billion and would begin construction in 2025. [73]

In 2017, ODOT began planning an expansion of I-5 through the Rose Quarter to address congestion and safety issues on a 1.8-mile (2.9 km) section between I-84 and I-405. [74] The agency's proposal—the addition of an auxiliary lane for merging and weaving traffic, as well as a freeway lid—would cost $450 million and was approved by the state legislature that year. [75] The project attracted opposition and protests as it went through several years of environmental review and design revisions, during which the estimated cost grew to $715 million by 2020. [76] [77] In June 2020, several elected officials from the city and county governments announced that they would not support the proposal, following a local nonprofit advocacy group from the Albina neighborhood that did the same. [78] A new design with larger freeway lids and potential for development, estimated to cost $1.25 billion, was adopted by ODOT in September 2021; the city government later returned to the project, which was expected to begin construction in 2025. [79] By June 2023, the estimated cost had risen to $1.9 billion and ODOT delayed work on the project for an indefinite period of time. [80]

Exit list

CountyLocation [81] mi [81] kmExitDestinationsNotes
Jackson ​0.000.00—South plate blue 1961.svg
I-5 (1961).svg I-5 south – Yreka, Redding 		Continuation into California
​0.741.191 Siskiyou Summit Northbound exit and southbound entrance; unsigned OR 273
​4.306.92 Siskiyou Summit, elevation 4,310 feet (1,310 m)
​5.368.636 Mount Ashland Unsigned OR 273
​11.6218.7011North plate.svg
OR 99.svg OR 99 north (Siskiyou Boulevard) – Ashland 		Northbound exit and southbound entrance
Ashland 14.2022.8514OR 66.svg OR 66  – Ashland, Klamath Falls
​19.1430.8019Valley View Road – Ashland Valley View Road only appears on northbound signage
Talent 21.2234.1521 Talent
Phoenix 24.4239.3024 Phoenix
Medford 27.2443.8427To plate.svg
OR 99.svg To OR 99  – South Medford
30.3248.8030East plate.svg
OR 62.svgTo plate.svg
OR 238.svg OR 62 east (Crater Lake Highway) to OR 238  – North Medford, Crater Lake 		Northbound exit and entrance
East plate.svg
OR 62.svg OR 62 east (Crater Lake Highway) – Medford, Klamath Falls 		Southbound exit and entrance
Central Point 32.7852.7533 Central Point, Eagle Point
​35.5157.1535South plate.svg
OR 99.svgEast plate.svg
OR 140.svg OR 99 south / OR 140 east / Blackwell Road – Central Point
​40.8665.7640OR 99.svgTo plate.svg
OR 234.svg OR 99 (Rogue-Umpqua Scenic Byway / Blackwell Road) to OR 234 		Northbound exit and entrance
Gold Hill Southbound exit and entrance
​43.8070.4943To plate.svg
OR 99.svgTo plate.svg
OR 234.svg To OR 99 (Rogue River Route) / OR 234  – Gold Hill, Crater Lake 		OR 234, Gold Hill, and Crater Lake only appear on southbound signage
​45.4873.1945AOR 99.svg OR 99 (Rogue River Route)
​45.75–
46.08		73.63–
74.16		45B Valley of the Rogue State Park
Rogue River 48.8578.6248 City of Rogue River
Josephine Grants Pass 55.8189.8255South plate.svg
US 199.svg US 199 south (Redwood Highway) – South Grants Pass, Crescent City
57.96–
58.34		93.28–
93.89		58South plate.svg
OR 99.svgTo plate.svg
US 199.svg OR 99 south to US 199 (Redwood Highway) – Grants Pass City Center 		South end of OR 99 concurrency
​61.4798.9361 Merlin
​66.31106.7266 Hugo
​69.11111.22Sexton Mountain Pass summit, elevation 1,960 feet (600 m)
​71.42114.9471 Sunny Valley
​73.84118.83Smith Hill summit, elevation 1,730 feet (530 m)
Wolf Creek 75.82–
76.78		122.02–
123.57		76 Wolf Creek
​78.46126.2778Speaker RoadSouthbound exit and northbound entrance
​79.81128.44Stage Road Pass summit, elevation 1,830 feet (560 m)
Douglas ​80.79130.0280 Glendale
​83.28134.0383Barton RoadNorthbound exit and southbound entrance
Quines Creek 86.13138.6186Quines Creek Road / Barton RoadBarton Road only appears on southbound signage
​88.12141.8288 Azalea, Galesville Reservoir
​90.19145.15Canyon Creek Pass summit, elevation 2,020 feet (620 m)
​95.81154.1995Canyon Creek
Canyonville 98.27158.1598 Canyonville, Days Creek
​99.51160.1599 North Canyonville, Stanton Park (northbound), Crater Lake (southbound)
​101.05–
101.39		162.62–
163.17		101 Riddle, Stanton ParkStanton Park only appears on southbound signage
​101.89163.98102Gazley Road
Tri-City 103.94167.28103 Tri-City, Riddle
Myrtle Creek 106.70171.72106 Tri-City, Myrtle Creek Northbound signage
Weaver RoadSouthbound signage
107.98–
108.47		173.78–
174.57		108 Myrtle Creek
​110.35177.59110Boomer Hill Road
​112.12–
112.48		180.44–
181.02		112North plate.svg
OR 99.svgTo plate.svg
West plate.svg
OR 42.svg OR 99 north to OR 42 west – Dillard, Coos Bay, Winston 		OR 99 and OR 42 only appear on northbound signage; Winston only appears on southbound signage; northern end of concurrency with OR 99
​113.43182.55113Clarks Branch Road – Round Prairie
​116.42187.36Roberts Mountain summit, elevation 956 feet (291 m)
Green 119.50192.32119West plate.svg
OR 42.svgTo plate.svg
OR 99.svg OR 42 west to OR 99  – Winston, Coos Bay
​120.48193.89120North plate.svg
OR 99.svg OR 99 north – South Roseburg 		Northbound exit only
Green District, Roseburg Southbound exit and entrance
​121.68195.82121McLain Avenue
​123.00197.95123Douglas County Fairgrounds, Umpqua Park
Roseburg 124.13199.77124East plate.svg
OR 138.svg OR 138 east – Roseburg City Center, Diamond Lake 		Southern end of concurrency with OR 138
125.07201.28125Garden Valley Boulevard – Roseburg
126.51203.60127Edenbower Boulevard – North Roseburg
​129.45208.33129 Winchester Northbound signage
Wilbur Southbound signage
Sutherlin 135.13217.47135 Sutherlin, Wilbur
136.51219.69136West plate.svg
OR 138.svg OR 138 west – Sutherlin, Elkton 		Northern end of concurrency with OR 138
​138.29222.56138 Oakland Northbound exit and southbound entrance
​140.53226.16140South plate.svg
OR 99.svg OR 99 south – Oakland 		Southern end of concurrency with OR 99; southbound exit and northbound entrance
​142.17228.80142 Metz Hill
​142.31229.03Rice Hill summit, elevation 723 feet (220 m)
​146.24235.35146 Rice Valley
Rice Hill 148.40–
149.59		238.83–
240.74		148 Rice Hill
​150.32241.92150North plate.svg
OR 99.svgTo plate.svg
OR 38.svg OR 99 north to OR 38  – Yoncalla, Drain 		North end of OR 99 concurrenmcy
​154.36–
154.95		248.42–
249.37		154 Scotts Valley, Elkhead
​159.27256.32159Cox Road – Elk Creek
​160.13257.70160Salt Springs Road
​161.70260.23161 Anlauf, Lorane Northbound exit only
​162.35261.28162West plate.svg
OR 38.svgSouth plate.svg
OR 99.svg OR 38 west / OR 99 south – Drain, Elkton 		Southern end of concurrency with OR 99
​163.43263.02163 Curtin, Lorane
Lane ​168.36270.95170North plate.svg
OR 99.svg OR 99 north – Cottage Grove 		Northern end of concurrency with OR 99; northbound exit and southbound entrance
​172.23277.18172Sixth Street – Cottage Grove LakeSouthbound exit and northbound entrance
Cottage Grove 174.73281.20174 Cottage Grove, Dorena Lake
​176.75284.45176 Saginaw
Creswell 182.82294.22182 OR 222  – Creswell
​186.42300.01186Dillard Road – Goshen Northbound exit only
​188.33303.09188AEast plate.svg
OR 58.svg OR 58 east (Willamette Highway) – Oakridge, Klamath Falls 		Signed as Exit 188 southbound; OR 99 only appears on northbound signage; Klamath Falls only appears on southbound signage; southern end of concurrency with OR 99
​188.65303.60188BSouth plate.svg
OR 99.svg OR 99 south – Goshen
​189.64–
190.73		305.20–
306.95		189 OR 225  / 30th Avenue – South Eugene
Springfield–Eugene line191.97308.95191No image.svgBusiness plate.svgNo image.svg
OR 126.svg Glenwood Boulevard to OR 126 Bus. east – Downtown Springfield 		OR 126 Bus. only appears on northbound signage
192.26309.41192North plate.svg
OR 99.svgWest plate.svg
Business plate.svg
OR 126.svg OR 99 north / OR 126 Bus. west – University of Oregon, Downtown Eugene 		Northern end of concurrency with OR 99; northbound exit and southbound entrance
192.74310.18 Whilamut Passage Bridge over the Willamette River
193.71–
194.18		311.75–
312.50		194AEast plate.svg
OR 126.svg OR 126 east – Springfield
194BWest plate blue.svg
I-105.svgWest plate.svg
OR 126.svg I-105 west / OR 126 west – Eugene 		Exit 4 on I-105
195.43–
195.70		314.51–
314.95		195ABeltline Road east – Springfield, Gateway Mall Signed as Exit 195 southbound; Beltline Road east only appears on northbound signage; Springfield and Eugene only appears on southbound signage
195BWest plate.svg
OR 569.svg OR 569 west (Randy Papé Beltline) – Springfield, Eugene, Florence, Eugene Airport
Coburg 199.14320.48199 Coburg National Historic District
Linn ​209.05336.43209 Harrisburg, Junction City
​216.56348.52216OR 228.svg OR 228  – Halsey, Brownsville
​228.08367.06228OR 34.svg OR 34  – Lebanon, Corvallis
Albany 233.21375.32233US 20.svg US 20 (Santiam Highway) – Albany, Lebanon, Sweet Home, Foster Lake Albany only appears on northbound signage; Sweet Home only appears on southbound signage
233.85–
234.39		376.35–
377.21		234AKnox Butte Road – Fair/Expo CenterSigned as exit 234 northbound; no southbound entrance; southbound access via exit 233
Albany–Millersburg line234BSouth plate.svg
OR 99E.svg OR 99E south – Albany 		Southern end of concurrency with OR 99E; southbound exit and northbound entrance
Millersburg 235.66379.26235ViewcrestNorthbound signage
Millersburg Southbound signage
237.66382.48237ViewcrestNo northbound exit
​238.23383.39238 OR 164 north – South Jefferson, Scio, Millersburg South Jefferson only appears on northbound signage; Millersburg only appears on southbound signage
​239.66385.70239Dever–Conner
Linn–Marion
county line		​240.65387.29 Santiam River
Marion ​242.12389.65242Talbot Road
​243.52391.91243 Ankeny Hill
​244.67393.76244 OR 164 south – North Jefferson, Jefferson North Jefferson only appears on northbound signage; Jefferson only appears on southbound signage
​248.40399.76248Delaney Road – Sunnyside, Turner Sunnyside only appears on northbound signage; Delaney Road only appears on southbound signage
Salem 248.57400.03249Commercial StreetNorthbound exit and southbound entrance
251.52404.78252Kuebler Boulevard
253.86408.55253OR 22.svgNorth plate.svg
Business plate.svg
OR 99E.svg OR 22  / OR 99E Bus. north – Detroit Lake, Bend
256.27412.43256North plate.svg
OR 213.svg OR 213 north (Market Street) – Silverton, Lancaster Mall 		Silverton only appears on northbound signage; Lancaster Mall only appears on southbound signage
258.62416.21258North plate.svg
OR 99E.svg OR 99E north (Portland Road)		Northbound signage; northern end of concurrency with OR 99E
North Salem, Oregon State Fairgrounds, L. B. Day Comcast Amphitheatre Southbound signage
259.96418.37260ASouth plate.svg
Business plate.svg
OR 99E.svg OR 99E Bus. south (Dr MLK Jr Parkway)		Southbound exit and northbound entrance
260.21418.77260BChemawa Road – Keizer Signed as Exit 260 northbound; Chemawa Road only appears on northbound signage
​263.48424.03263 Brooks, Gervais
Woodburn 271.85437.50271South plate.svg
OR 214.svgNorth plate.svg
OR 219.svg OR 214 south / OR 219 north – Woodburn, Molalla, Silverton 		Molalla only appears on northbound signage; Silverton only appears on southbound signage
​278.66448.46278Ehlen Road – Donald, Aurora National Historic District Donald only appears on northbound signage; Ehlen Road only appears on southbound signage
Clackamas ​282.24454.22282ASouth plate.svg
OR 551.svg OR 551 south – Canby, Hubbard 		Southbound exit and northbound entrance
​282.59454.78282 Canby Northbound signage
282B Charbonneau District Southbound signage
Wilsonville 283.10455.61 Boone Bridge over the Willamette River
283.87456.84283Wilsonville Road
Washington 286.17460.55286 OR 141 north (Boones Ferry Road) / Elligsen Road
Tualatin 288.20–
288.97		463.81–
465.05		288North plate blue.svg
I-205.svg I-205 north – Oregon City, West Linn 		West Linn only appears on southbound signage
289.49465.89289Nyberg Street / Tualatin-Sherwood Road - Tualatin
290.47467.47290Lower Boones Ferry Road
Washington–Clackamas
county line		 Tigard 291.29468.79291Carman Drive
Tigard–Lake Oswego line292.19470.23292North plate.svg
OR 217.svgTo plate.svg
US 26.svg OR 217 north to US 26  – Tigard, Beaverton 		Signed as Exit 292 southbound; 72nd Avenue, Tigard, and Beaverton only appear on northbound signage; Lake Oswego only appears on southbound signage
292Kruse Way, 72nd Avenue – Lake Oswego
Washington Tigard 292.90–
293.28		471.38–
471.99		293Haines Street
Multnomah Portland 293.79472.81294Barbur BoulevardNorthbound signage
OR 99W.svg OR 99W  – Tigard, Newberg Southbound signage
295.03474.80295Capitol HighwayNo northbound exit
295.52475.59295Taylors Ferry RoadNorthbound exit only
296.30476.85296ABarbur BoulevardSouthbound exit and northbound entrance
296.68477.46296BMultnomah BoulevardSouthbound exit and northbound entrance
297.16478.23297 Terwilliger Boulevard No southbound entrance
298.74480.78298Corbett AvenueNorthbound exit only
299.16–
299.83		481.45–
482.53		299AOR 43.svgTo plate.svg
East plate.svg
US 26.svg OR 43 (Macadam Avenue) to US 26 east / Ross Island Bridge  – Lake Oswego 		US 26 and Ross Island Bridge only appear on northbound signage; Lake Oswego only appears on southbound signage
299.51–
300.27		482.01–
483.24		299BNorth plate blue.svg
I-405.svgTo plate.svg
West plate.svg
US 26.svg I-405 north to US 26 west – City Center, Beaverton 		No exit number southbound; City Center only appears northbound; Beaverton only appears southbound
300.35–
300.45		483.37–
483.53		 Marquam Bridge over the Willamette River
300.65–
301.91		483.85–
485.88		300I-84.svgEast plate.svg
US 30.svgAirport Sign.svg I-84  / US 30 east – The Dalles, PDX 		Northbound signage; access to OMSI and Central Eastside Industrial District
300BOR 99E.svgTo plate.svg
East plate.svg
US 26.svg OR 99E to US 26 east – OMSI, Oregon City 		Southbound signage; southbound exit and northbound entrance
301I-84.svgEast plate.svg
US 30.svg I-84  / US 30 east – The Dalles 		Southbound signage; southern end of concurrency with US 30
302.08–
302.60		486.15–
486.99		302A Broadway / Weidler Street – Moda Center
302.73–
303.47		487.20–
488.39		302BSouth plate blue.svg
I-405.svgWest plate.svg
US 30.svg I-405 south / US 30 west – St. Helens, Beaverton 		Beaverton only appears on southbound signage; northern end of concurrency with US 30
303.15487.87302CGreeley Avenue – Swan Island Northbound exit and southbound entrance
303.75–
304.47		488.84–
490.00		303Killingsworth Street – Swan Island Northbound signage
Alberta Street – Swan Island Southbound signage
304.92490.72304Rosa Parks Way
305.43491.54305By-pass plate.svg
US 30.svg US 30 Byp. (Lombard Street)		Northbound exit and southbound entrance; signed as Exits 305A (east) and 305B (west)
305.91492.31306AColumbia BoulevardNorthbound exit and southbound entrance
306.44493.17306BVictory Boulevard – Expo Center No southbound exit
306.97494.02306To plate.svg
By-pass plate.svg
US 30.svg To US 30 Byp. (Lombard Street) / Interstate Avenue - Portland International Raceway, Portland Meadows 		Southbound exit and northbound entrance; former OR 99W south
307.33494.60307South plate.svg
OR 99E.svg OR 99E south (Martin Luther King Jr. Boulevard) / OR 120 west (Marine Drive) – Delta Park 		Delta Park only appears on northbound signage
North Portland Harbor 307.45–
307.70		494.79–
495.20		 North Portland Harbor Bridge
Hayden Island 307.77–
307.99		495.31–
495.66		308 Hayden Island, ODOT Permits
Columbia River 308.17–
308.37		495.95–
496.27		 Interstate Bridge
North plate blue.svg
I-5.svg I-5 north – Seattle 		Continuation into Washington
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Related Research Articles

<span class="mw-page-title-main">Interstate 5</span> Interstate Highway along the West Coast of the United States

Interstate 5 (I-5) is the main north–south Interstate Highway on the West Coast of the United States, running largely parallel to the Pacific coast of the contiguous U.S. from Mexico to Canada. It travels through the states of California, Oregon, and Washington, serving several large cities on the West Coast, including San Diego, Los Angeles, Sacramento, Portland, and Seattle. It is the only continuous Interstate highway to touch both the Mexican and Canadian borders. Upon crossing the Mexican border at its southern terminus, the highway continues to Tijuana, Baja California, as Mexican Federal Highway 1 (Fed. 1). Upon crossing the Canadian border at its northern terminus, it continues to Vancouver as British Columbia Highway 99 (BC 99).

<span class="mw-page-title-main">U.S. Route 99</span> Former Numbered U.S. Highway in California, Oregon, and Washington in the United States

U.S. Route 99 (US 99) was a main north–south United States Numbered Highway on the West Coast of the United States until 1964, running from Calexico, California, on the Mexican border to Blaine, Washington, on the Canadian border. It was assigned in 1926 and existed until it was replaced for the most part by Interstate 5. Known also as the "Golden State Highway" and "The Main Street of California", US 99 was important throughout much of the 1930s as a route for Dust Bowl immigrant farm workers to traverse the state. Large portions are now California State Route 99 (SR 99), Oregon's Routes 99, 99W, and 99E, and Washington's SR 99. The highway in Washington connected to British Columbia Highway 99, whose number was derived from that of US 99, at the Canada–US border.

<span class="mw-page-title-main">Marquam Bridge</span> Carries Interstate 5 traffic over the Willamette River in Portland, Oregon

The Marquam Bridge is a double-deck, steel-truss cantilever bridge that carries Interstate 5 traffic across the Willamette River from south of downtown Portland, Oregon, on the west side to the industrial area of inner Southeast on the east. It is the busiest bridge in Oregon, carrying 140,500 vehicles a day as of 2016. The upper deck carries northbound traffic; the lower deck carries southbound traffic. The Marquam also has on and off ramps for Interstate 405 on the south end of the bridge, while the terminus on the east bank of the river is near the interchange with Interstate 84.

<span class="mw-page-title-main">Ross Island Bridge</span> Bridge in Portland, Oregon

The Ross Island Bridge is a cantilever truss bridge that spans the Willamette River in Portland, Oregon. It carries U.S. Route 26 across the river between southwest and southeast Portland. The bridge opened in 1926 and was designed by Gustav Lindenthal and honors Oregon pioneer Sherry Ross. It is named for its proximity to Ross Island. Although it looks like a deck arch bridge, it is a cantilever deck truss bridge, a rare type in Oregon.

<span class="mw-page-title-main">Abernethy Bridge</span> Bridge in Oregon City, Oregon

The George Abernethy Bridge, or simply Abernethy Bridge, is a steel plate and box girder bridge that spans the Willamette River between Oregon City and West Linn, Oregon, United States, and which carries Interstate 205. It is also known as the Oregon City Freeway Bridge and the I-205 Bridge.

<span class="mw-page-title-main">Oregon Route 217</span> Freeway in the Portland, OR, metro area


Oregon Route 217 (OR 217), also known as the Beaverton-Tigard Highway No. 144, is a north-south controlled-access state highway in Washington County, Oregon. The route travels along the west suburbs of Portland, starting at US Route 26 (US 26) in Beaverton and ending at Interstate 5 (I-5) in Tigard.

<span class="mw-page-title-main">Oregon Route 126</span> State highway in Oregon

Oregon OR 126 (OR 126) is a 204.63-mile-long (329.32 km) state highway that connects coastal, western, and central parts of the U.S. state of Oregon. A short freeway section of OR 126 in Eugene and Springfield is concurrent with Interstate 105 (I-105).

<span class="mw-page-title-main">Interstate 205 (Oregon–Washington)</span> Interstate Highway in Oregon and Washington

Interstate 205 (I-205) is an auxiliary Interstate Highway in the Portland metropolitan area of Oregon and Washington, United States. The north–south freeway serves as a bypass route of I-5 along the east side of Portland, Oregon, and Vancouver, Washington. It intersects several major highways and serves Portland International Airport.

<span class="mw-page-title-main">Interstate 405 (Oregon)</span> Interstate Highway in Portland, Oregon, U.S.

Interstate 405 (I-405), also known as the Stadium Freeway No. 61, is a short north–south Interstate Highway in Portland, Oregon. It forms a loop that travels around the west side of Downtown Portland, between two junctions with I-5 on the Willamette River near the Marquam Bridge to the south and Fremont Bridge to the north.

<span class="mw-page-title-main">Oregon Route 99E Business</span> State highway business loop in Oregon, United States

Oregon Route 99E Business is a business route through Salem, Oregon for Oregon Route 99E, which bypasses downtown via Interstate 5 (I-5). A portion of this highway was originally planned to be a freeway, signed as Interstate 305; however the proposed freeway was cancelled after community opposition.

<span class="mw-page-title-main">Oregon Route 219</span> State highway in northwestern Oregon, US

Oregon Route 219 is an Oregon state highway which runs between the cities of Hillsboro and Woodburn, Oregon, in the United States. The Hillsboro-Silverton Highway continues further south to Silverton, signed as OR 214. The highway mainly serves local residents and agricultural traffic, despite its proximity to the Portland area it lies outside the Portland Urban Growth Boundary, and maintains its character as a country road.

<span class="mw-page-title-main">Oregon Route 43</span> State highway in northwestern Oregon, US

Oregon Route 43 is an Oregon state highway that runs between the cities of Oregon City and Portland, mostly along the western flank of the Willamette River. While it is technically known by the Oregon Department of Transportation as the Oswego Highway No. 3, on maps it is referred to by its route number or by the various street names it has been given.

<span class="mw-page-title-main">Oregon Route 551</span> Highway in Oregon

Oregon Route 551 is an Oregon state highway that runs between the cities of Wilsonville and Hubbard. It is known as the Wilsonville-Hubbard Highway No. 51 and is also called the "Hubbard Cutoff." It is 5.94 miles (9.56 km) long, and is a two-lane limited access highway for its entire length.

<span class="mw-page-title-main">U.S. Route 30 in Oregon</span> Highway 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. 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.

<span class="mw-page-title-main">Oregon Route 22</span> State highway in western Oregon, US

Oregon Route 22 is an Oregon state highway that runs between the Oregon Coast community of Hebo, to a junction with U.S. Route 20 near Santiam Pass in the Cascade Mountains. OR 22 traverses several highways of the Oregon state highway system, including the Three Rivers Highway No. 32, part of the Salmon River Highway No. 39, the Willamina–Salem Highway No. 30, part of the Salem Highway No. 72, and the North Santiam Highway No. 162.

<span class="mw-page-title-main">Harbor Drive</span> Road of historical significance in Portland, Oregon

Harbor Drive is a short roadway in Portland, Oregon, spanning a total length of 0.7 miles (1.1 km), which primarily functions as a ramp to and from Interstate 5. It was once much longer, running along the western edge of the Willamette River in the downtown area. Originally constructed from 1942–43, the vast majority of the road was replaced with Tom McCall Waterfront Park in the 1970s. Signed as U.S. Route 99W, it had been the major route through the city and its removal is often cited as the first instance of freeway removal in the U.S. and as a milestone in urban planning; the original road is remembered as the first limited-access highway built in the city.

<span class="mw-page-title-main">Oregon Route 99E</span> State highway in western Oregon, US

Oregon Route 99E is an Oregon state highway that runs between Junction City, Oregon and an interchange with I-5 just south of the Oregon/Washington border, in Portland. It, along with OR 99W, makes up a split of OR 99 in the northern part of the state. This split existed when the route was U.S. Route 99, when the two branches were U.S. 99W and U.S. 99E.

<span class="mw-page-title-main">Oregon Route 99W</span> State highway in northwestern Oregon, US

Oregon Route 99W is a state-numbered route in Oregon, United States, that runs from OR 99 and OR 99E in Junction City north to I-5 in southwestern Portland. Some signage continues it north to US 26 near downtown, but most signage agrees with the Oregon Department of Transportation's (ODOT) description, ending it at I-5. OR 99W is known by ODOT as the Pacific Highway West No. 1W ; that highway continues north through downtown to the Pacific Highway No. 1 (I-5) in northern Portland, as well as south on OR 99 to the Pacific Highway (I-5) in Eugene.

<span class="mw-page-title-main">Oregon Route 58</span> State highway in Oregon, US

Oregon Route 58, also known as the Willamette Highway No. 18, is a state highway in the U.S. state of Oregon. The route, signed east–west, runs in a southeast–northwest direction, connecting U.S. Route 97 north of Chemult with Interstate 5 south of Eugene. It links the Willamette Valley and Central Oregon, crossing the Cascade Range at Willamette Pass. OR 58 is generally a modern two-lane highway with a speed limit of 55 mph (88 km/h), built through the Willamette National Forest in the 1930s.

<span class="mw-page-title-main">Interstate 84 in Oregon</span> Interstate highway in Oregon

Interstate 84 (I-84) in the U.S. state of Oregon is a major Interstate Highway that traverses the state from west to east. It is concurrent with U.S. Route 30 (US 30) for most of its length and runs 376 miles (605 km) from an interchange with I-5 in Portland to the Idaho state line near Ontario. The highway roughly follows the Columbia River and historic Oregon Trail in northeastern Oregon, and is designated as part of Columbia River Highway No. 2 and all of the Old Oregon Trail Highway No. 6; the entire length is also designated as the Vietnam Veterans Memorial Highway. I-84 intersects several of the state's main north–south roads, including US 97, US 197, I-82, and US 395.

References

  1. ↑ "Table 1: Main Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of December 31, 2017". Federal Highway Administration. December 31, 2017. Archived from the original on July 3, 2017. Retrieved June 22, 2018.
  2. ↑ Official Route Numbering for the National System of Interstate and Defense Highways (Map). American Association of State Highway Officials, Public Roads Administration. August 14, 1957. Archived from the original on July 19, 2017. Retrieved April 14, 2013.
  3. ↑ Weingroff, Richard F. (Summer 1996). "Federal-Aid Highway Act of 1956, Creating the Interstate System". Public Roads. Vol. 60, no. 1. Washington, D.C.: Federal Highway Administration. ISSN   0033-3735. Archived from the original on March 7, 2012. Retrieved April 14, 2013.
  4. 1 2 3 Kramer, George (May 2004). The Interstate Highway System in Oregon: A Historic Overview (PDF) (Report). Oregon Department of Transportation. p. 1. Archived (PDF) from the original on August 30, 2021. Retrieved June 24, 2018– via Oregon State Library.
  5. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Oregon 2017–2019 Official State Map (PDF) (Map). Oregon Department of Transportation. March 2017. Archived (PDF) from the original on July 17, 2020. Retrieved June 24, 2018, with inset maps Archived April 3, 2018, at the Wayback Machine .
  6. ↑ Transportation Development Division (April 2001). Study of Eastern Oregon Freeway Alternatives, Pursuant to House Bill 3090 (PDF) (Report). Oregon Department of Transportation. p. 12. Archived (PDF) from the original on September 5, 2018. Retrieved September 4, 2018.
  7. ↑ "Functional Classification". Oregon Department of Transportation. Archived from the original on June 19, 2018. Retrieved June 24, 2018.
  8. ↑ National Highway System: Oregon (PDF) (Map). Federal Highway Administration. March 25, 2015. Archived (PDF) from the original on February 12, 2017. Retrieved June 24, 2018.
  9. 1 2 ODOT Transportation Data Section and Transportation Systems Monitoring Unit (November 2018). "2017 Transportation Volume Tables" (PDF). Oregon Department of Transportation. pp. 17–21, 31–33. Archived (PDF) from the original on December 4, 2018. Retrieved December 3, 2018.
  10. ↑ Bengel, Erick (January 11, 2016). "Highway becomes a memorial to veterans of recent wars". Daily Astorian . Archived from the original on September 10, 2018. Retrieved September 9, 2018.
  11. ↑ Miller, Mark (January 13, 2016). "Purple Heart Trail signage placed along Interstate 5 in Tualatin". Beaverton Valley Times . Archived from the original on September 2, 2022. Retrieved October 1, 2018.
  12. ↑ "Respect the Siskiyou Pass" (PDF). Oregon Department of Transportation. September 2005. Archived (PDF) from the original on March 21, 2018. Retrieved June 22, 2018.
  13. 1 2 Fattig, Paul (October 30, 2012). "ODOT plans to use rock salt for I-5 ice melt". Mail Tribune . Medford, Oregon. Archived from the original on August 10, 2020. Retrieved June 22, 2018.
  14. ↑ Rose, Joseph (March 22, 2013). "How a wrong-way big rig delivered frozen freeways in Portland". The Oregonian . Archived from the original on June 23, 2018. Retrieved June 22, 2018.
  15. 1 2 3 4 5 6 7 8 9 10 11 12 13 "Interstate 5, Oregon" (Map). Google Maps . Retrieved June 22, 2018.
  16. ↑ Richard, Terry (August 30, 2015). "The softer, gentler approach to Pacific Crest Trail". The Oregonian. p. R4. Archived from the original on June 23, 2018. Retrieved June 22, 2018.
  17. ↑ Nguyen, Tran (March 1, 2018). "Rest for the weary". Mail Tribune. Medford, Oregon. Archived from the original on July 10, 2018. Retrieved July 9, 2018.
  18. ↑ Kramer, George. "Medford". The Oregon Encyclopedia . Archived from the original on June 21, 2018. Retrieved June 23, 2018.
  19. 1 2 3 4 5 6 Hale, Jamie; Eastman, Janet (June 24, 2018). "The best I-5 pit stops in Oregon". The Oregonian. Archived from the original on September 10, 2018. Retrieved September 9, 2018.
  20. ↑ "50th Anniversary of the Interstate Highway System: Interstate 5 (Pacific Highway)". Oregon Department of Transportation. Archived from the original on December 4, 2006. Retrieved June 23, 2018.
  21. ↑ Mann, Damian (January 29, 2016). "Could the I-5 viaduct be replaced?". Mail Tribune. Medford, Oregon. Archived from the original on June 24, 2018. Retrieved June 23, 2018.
  22. ↑ Gottberg Anderson, John (February 6, 2011). "Giant redwoods date back thousands of years". Bend Bulletin . Archived from the original on September 10, 2018. Retrieved September 9, 2018.
  23. ↑ "4 NW projects win AGC 'Oscars'". Seattle Daily Journal of Commerce . March 27, 2015. Archived from the original on July 10, 2018. Retrieved July 9, 2018.
  24. ↑ Heinz, Spencer (September 13, 1992). "A parallel to live by". The Oregonian. p. C2.
  25. ↑ Kulla, Josh (September 18, 2013). "Letting history remain in the past". Wilsonville Spokesman . Archived from the original on July 10, 2018. Retrieved July 9, 2018.
  26. ↑ Williams, Christina (August 23, 2012). "Oregon's solar highway project open to visitors". Portland Business Journal . Archived from the original on September 2, 2022. Retrieved July 9, 2018.
  27. ↑ Grace Lednicer, Lisa (February 20, 2005). "The kink in Portland's bottleneck". The Oregonian. p. A1.
  28. ↑ Koffman, Rebecca (July 12, 2012). "New pedestrian and bicycle bridge across Interstate 5 opens Saturday in Southwest Portland". The Oregonian. Archived from the original on July 10, 2018. Retrieved July 10, 2018.
  29. 1 2 3 Portland City Center (PDF) (Map). TriMet. Archived (PDF) from the original on February 10, 2019. Retrieved July 10, 2018.
  30. ↑ Boddie, Ken (January 16, 2018). "Where We Live: How the Marquam Bridge got its name". KOIN. Archived from the original on July 10, 2018. Retrieved July 10, 2018.
  31. 1 2 Anderson, Jennifer (April 19, 2007). "Stumptown Stumper". Portland Tribune. Archived from the original on July 10, 2018. Retrieved July 9, 2018.
  32. ↑ Mayer, James (July 3, 1989). "Running ramp-ant: Final chapter to lose on 'stubs' at east end of Marquam Bridge". The Oregonian. p. B3.
  33. ↑ Kelsey, Doug (January 29, 2016). "Here's How We Plan to Improve MAX Reliability". TriMet. Archived from the original on July 10, 2018. Retrieved July 10, 2018.
  34. ↑ Marum, Anna (January 23, 2018). "N. Portland oil spill reaches Willamette". The Oregonian. Archived from the original on July 10, 2018. Retrieved July 9, 2018.
  35. 1 2 "MAX Yellow Line Fact Sheet" (PDF). TriMet. July 2016. Archived from the original (PDF) on July 10, 2018. Retrieved July 10, 2018.
  36. ↑ Rose, Joseph (September 5, 2012). "Commuting: More thoughts on Portland's lone HOV lane ('spineless' and otherwise)". The Oregonian. Archived from the original on July 10, 2018. Retrieved July 9, 2018.
  37. ↑ Hewitt, Scott (September 16, 2016). "The city that submerged". The Columbian . Archived from the original on July 10, 2018. Retrieved July 10, 2018.
  38. ↑ Solomon, Molly (March 22, 2017). "Rising Columbia River Means More Bridge Lifts For Commuters". Oregon Public Broadcasting. Archived from the original on July 10, 2018. Retrieved July 10, 2018.
  39. ↑ Fiorini, Gail (December 27, 2017). "As It Was: Modern highway follows the historic Siskiyou Trail". Ashland Daily Tidings . p. A4. Archived from the original on June 24, 2018. Retrieved June 23, 2018.
  40. ↑ Bjornstad, Randi (January 4, 2015). "It's been a long road". The Register-Guard . Eugene, Oregon. Archived from the original on June 24, 2018. Retrieved June 23, 2018.
  41. ↑ LaLande, Jeff. "Applegate Trail". The Oregon Encyclopedia. Archived from the original on May 20, 2018. Retrieved July 13, 2018.
  42. ↑ McCarthy, Linda (April 1, 1999). "Exhibit retraces highway of yesteryear". The Oregonian. p. 10.
  43. ↑ Hoyt, Hugh Myron Jr. (June 1966). The Good Roads Movement in Oregon: 1900–1920 (PhD). University of Oregon. p. 70. CiteSeerX   10.1.1.876.5064 .
  44. ↑ "Pacific Highway Campaign Plans Now Completed". Oregon Daily Journal . April 30, 1911. p. 26. Retrieved August 11, 2018– via Newspapers.com.
  45. ↑ "Great Highway is Planned From North to South". The Eugene Guard . November 16, 1910. p. 6. Retrieved August 11, 2018– via Newspapers.com.
  46. 1 2 3 4 5 "The First 75 Years". Oregon Department of Transportation. 1988. pp. A4, A6–A7, B1, B3–B5. Archived from the original on August 12, 2018. Retrieved August 11, 2018– via Oregon State Library.
  47. ↑ Livingston, Jill (2003). That Ribbon of Highway III: Highway 99 Through the Pacific Northwest. Klamath River, California: Living Gold Press. pp. 4–8. ISBN   0-9651377-6-7. OCLC   51855448.
  48. ↑ "Sam Hill Starts Road". Morning Register. Eugene, Oregon. November 29, 1913. p. 1. Retrieved August 11, 2018– via Newspapers.com.
  49. ↑ Aldous, Vickie (April 16, 2015). "Tales of Highway 99". Medford Mail Tribune. Archived from the original on August 12, 2018. Retrieved August 11, 2018.
  50. ↑ Harvey Jr., Paul W. (March 22, 1947). "Throughways Bill Now Law". Capital Journal. p. 1. Retrieved September 9, 2018– via Newspapers.com.
  51. ↑ "'Throughways' Status is Given Most Highways". The News-Review . Roseburg, Oregon. Associated Press. November 5, 1948. p. 9. Retrieved September 9, 2018– via Newspapers.com.
  52. ↑ Harvey Jr., Paul W. (April 5, 1949). "Gasoline Taxes, Motor License Fees Increased". Capital Journal. p. 1. Retrieved September 9, 2018– via Newspapers.com.
  53. ↑ Kramer, George. "Interstate 5 in Oregon". The Oregon Encyclopedia. Archived from the original on May 21, 2018. Retrieved June 22, 2018.
  54. ↑ "Highway Commission Adops Hawthorne Park Bypass For Interstate Construction of U.S. 99 in Medford Area". The Oregonian. January 23, 1957. sec. 2, p. 6.
  55. ↑ Law, Steve (August 31, 2022). "ODOT to rename stretch of I-5 that honored former KKK member". Portland Tribune. Archived from the original on September 2, 2022. Retrieved September 2, 2022.
  56. ↑ Liedtke, Kurt (March 5, 2017). "150 years beside the river: Sesquicentennial celebration to recount Linkville's past". Herald and News . Klamath Falls, Oregon. p. A1. Archived from the original on March 8, 2017. Retrieved June 23, 2018.
  57. ↑ Bureau of Public Roads; American Association of State Highway Officials (November 11, 1926). United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials (Map). 1:7,000,000. Washington, DC: U.S. Geological Survey. OCLC   32889555. Archived from the original on April 13, 2017. Retrieved August 11, 2018– via Wikimedia Commons.
  58. ↑ "Highway Signs To Be Reality". Corvallis Gazette-Times . May 23, 1930. p. 1. Retrieved August 11, 2018– via Newspapers.com.
  59. ↑ Edwards, Herman (October 20, 1963). "Section Of East Bank Freeway To Open Within Weeks". The Oregonian. p. 36.
  60. 1 2 Harvey, Paul W. (October 22, 1966). "Hatfield Keeps Promise; Dedicates Completed Freeway". Corvallis Gazette-Times . p. 5. Retrieved June 22, 2018– via Newspapers.com.
  61. ↑ Edwards, Herman (January 8, 1964). "Traffic Speeds Over First Section Of East Bank Freeway". The Oregonian. p. 11.
  62. ↑ "East bank Freeway To Require Changes In Driving Habits". The Oregonian. December 25, 1963. p. 37.
  63. ↑ Staley, Brandon (September 13, 2016). "Happy 50th Birthday, Marquam Bridge". Portland Monthly . Retrieved February 23, 2023.
  64. ↑ "I-5 now completed throughout Oregon". The Oregon Motorist. Vol. 46, no. 2. Oregon State Motor Association. February 1967. Archived from the original on June 29, 2016. Retrieved April 14, 2013.
  65. ↑ Olmos, Robert (June 16, 1976). "Recycled freeways: Today I-5, tomorrow Boone's Ferry". The Oregonian. p. 4M.
  66. ↑ "Oregon Laws 2017, Chap. 675" (PDF). Oregon Legislative Assembly. August 8, 2017. Retrieved March 27, 2023.
  67. ↑ Etling, Bert (January 17, 2022). "Emergency on-ramp work begins". Ashland.news . Retrieved February 22, 2023.
  68. ↑ Mann, Damian (August 4, 2021). "Emergency fire escape takes shape". Mail Tribune. Retrieved February 22, 2023.
  69. ↑ Manning, Jeff (September 25, 2011). "At Hayden Island interchange, the Columbia River Crossing will cast a huge footprint". The Oregonian. Retrieved March 1, 2023.
  70. ↑ Seekamp, William (July 21, 2022). "I-5 Bridge Replacement Program moves into environmental review phase". The Columbian. Retrieved February 1, 2023.
  71. ↑ Ramakrishnan, Jayati (May 5, 2022). "Interstate Bridge planners advance new design with 2 more lanes, light rail to Vancouver". The Oregonian. Retrieved March 1, 2023.
  72. ↑ Seekamp, William (February 27, 2023). "Up to $2.45 billion of I-5 Bridge project budget will go to actual replacement". The Columbian. Retrieved March 1, 2023.
  73. ↑ Ramakrishnan, Jayati (November 17, 2022). "ODOT seeks public comments on Rose Quarter, freeway tolls". The Oregonian. Retrieved June 28, 2023.
  74. ↑ Njus, Elliot (September 7, 2017). "Activists want Portland to reject I-5 expansion through Rose Quarter". The Oregonian. Retrieved June 28, 2023.
  75. ↑ Theen, Andrew (February 20, 2019). "Rose Quarter freeway project would reduce travel times and greenhouse gases, report says". The Oregonian. Retrieved June 28, 2023.
  76. ↑ Theen, Andrew (June 30, 2020). "Rose Quarter freeway project does not need additional environmental review, state commission says". The Oregonian. Retrieved June 28, 2023.
  77. ↑ Bailey Jr., Everton (June 30, 2020). "Community nonprofit, Portland-area elected officials say they no longer support I-5 Rose Quarter project". The Oregonian. Retrieved June 28, 2023.
  78. ↑ Ramakrishnan, Jayati (June 9, 2022). "Portland poised to rejoin Rose Quarter freeway project after walking away in 2020". The Oregonian. Retrieved June 28, 2023.
  79. ↑ Ramakrishnan, Jayati (June 28, 2023). "ODOT pumps brakes on two major freeway projects amid budget crisis, tolling pause". The Oregonian. Retrieved June 28, 2023.
  80. 1 2 Road Inventory and Classification Services Unit. "Straightline Charts". Transportation Development Division, Oregon Department of Transportation. Archived from the original on May 20, 2019. Retrieved September 24, 2016.
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