Interstate 5 South - Multnomah County

Entering Oregon, Interstate 5 south continues with three lanes on the 1958-opened Interstate Bridge. Speed limits are just 50 mph across the draw bridge.

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A folded diamond interchange (Exit 308) lies at the south end of the Interstate Bridge on Hayden Island. The exit serves Jantzen Beach and Tomahawk Island.

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Entering the city of Portland, Interstate 5 continues over Friendly Reach along the Columbia River onto Hayden Island.

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Hayden Island is home to the Jantzen Beach Supercenter, a facility including a shopping mall, strip malls, and other commercial properties. Oregon has no sales tax, so parking lots are filled with cars bearing Washington plates.

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Travelers bound for Portland International Airport (PDX) that did not either take Washington 14 east or Interstate 205 south from Interstate 5 south should use Exit 307 onto OR 99E south to U.S. 30 Bypass east.

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Exit 308 departs Interstate 5 end connects with North Center Avenue at the Jantzen Beach Supercenter. Emanating from the interchange is Tomahawk Island Drive east to the marinas on Tomahawk Island and Hayden Island Drive west to the undeveloped portion of the island.

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Interstate 5 exits Hayden Island and spans the North Portland Harbor to a Exit 307 with OR 99E (Martin Luther King, Jr. Boulevard) south and unsigned OR 120 (Marine Drive) west.

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Exit 307 consists of a single lane ramp serving both OR 99E south and Marine Drive west. Marine Drive serves the Portland Metro Expo Center at West Delta Park. East Delta Park lines the northbound side of Interstate 5 south of Martin Luther King, Jr. Boulevard).

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OR 99E begins and travels southeast 2.25 miles southeast to U.S. 30 Bypass (Lombard Street) through the East Columbia neighborhood. There the state route becomes locally maintained to Division Street east of the city center. There is no direct connect with U.S. 30 Bypass from Interstate 5 south. Motorists are directed via Denver and Interstate Avenues south from Exit 306.

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Taking Exit 307 to the ramp split to OR 99E (Martin Luther King, Jr. Boulevard) south and Marine Drive east and Marine Drive west to the Portland Metro Expo Center. Marine Drive west lines the North Portland Harbor west to North Portland and industrial areas on Pearcy Island and east to Faloma and Broughton Beach.

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Exit 307 intersects Marine Drive opposite the northbound loop ramp onto Hayden Island. Marine Drive splits with OR 99E east of the interchange.

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Continuing south, Interstate 5 lines West Delta Park to Portland International Raceway and the split with Denver Avenue (former OR 99W). Denver Avenue veers southwest from Exit 306 to the Kenton neighborhood of Portland, becoming Interstate Avenue south of Columbia Boulevard.

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A wye interchange separates Denver Avenue (former OR 99W) from Interstate 5 south at Exit 306. A parclo interchange nearby joins Denver Avenue with Victory Boulevard and Expo Road at Portland International Raceway. Interstate Avenue (former U.S. 99W) parallels the Minnesota Freeway section of Interstate 5 south through Arbor Lodge and Overlook.

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Southbound reassurance shield of Interstate 5 posted at the Victory Boulevard underpass.

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Interstate 5 crosses Columbia Slough on the 1.25 mile approach to Exit 304 (Rosa Parks Way / Portland Boulevard).

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A wye interchange connects Interstate 5 north with Columbia Boulevard south of the Slough.

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Drivers along Interstate 5 south pass through a partial exchange with U.S. 30 Bypass (Lombard Street) and next meet Rosa Parks Way at a diamond interchange (Exit 304). Rosa Parks Way meets Interstate Avenue (old U.S. 99W) two blocks to the west and continues from there to Willamette Boulevard. Willamette Boulevard winds westward along Mocks Crest to the University of Portland campus.

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Exit 304 leaves Interstate 5 south for Rosa Parks Way (formerly Portland Boulevard). Exit 303 quickly follows as a split diamond interchange with Alberta Street. Rosa Parks Way travels east through the Piedmont neighborhood to Martin Luther King, Jr. Boulevard (former OR 99E).

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Distance sign at the Rosa Parks Way overpass outlining the distances to the succeeding three exits: I-405 (Stadium Freeway), the Rose Quarter, and I-84 (Banfield Expressway) east.

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Exit 303 joins a collector distributor roadway alongside Minnesota Avenue ahead of Alberta Street. Alberta Street connects with Interstate Avenue between Killingsworth and Going Streets at the Overlook section of the city. Going Street provides the main route to the industrialized Swan Island. Interstate 405 (Exit 302B) meanwhile begins in one mile.

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Interstate 405 south shares the Fremont Bridge with U.S. 30 west across the Willamette River. U.S. 30 partitions with the Stadium Freeway at Exit 3 and serves the Northwest Industrial Area on its exit of the city. Interests to Oregon Zoo are directed onto I-405 south to U.S. 26 (Sunset Highway) west.

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Minnesota Avenue, the street which Interstate 5 replaced when it was built through north Portland, lines the southbound side of the c/d roadway of Exit 303. Ramps join Interstate 5 south and Going Street west independent of the neighborhood street above the trenched freeway.

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Trucks bound for U.S. 26 (Sunset Highway) west are advised of the hazardous materials prohibition through the East Vista Ridge Tunnel with this sign at the Skidmore Street overpass.

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Continuing south along Interstate 5 on the Minnesota Freeway between the Overlook and Boise neighborhoods of Portland.

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Passing under the Failing Street Pedestrian Bridge on the quarter mile approach to Exit 302B. The right two lanes default onto I-405 soutj & U.S. 30 west across the Fremont Bridge. Interstate 405 serves the Portland central business district with connections to U.S. 26 west to Beaverton, while U.S. 30 heads northwest to St. Helens.

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I-84/U.S. 30 east emerge on the Interstate 5 southbound pull through panel at the Exit 302B ramp departure. A directional T interchange joins I-5 with I- 405, U.S. 30 and the Kerby Avenue connector. U.S. 30 east merges onto Interstate 5 south briefly to continue along I-84 at Exit 301. U.S. 30 west follows I-405 south to the first exit.

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Interstate 5 south reduces to four overall lanes through the Stadium Freeway interchange (Exit 302B). Ramp stubs exist on both flyover ramps to Interstate 405 for the Kerby Avenue connector. The Stadium Freeway spurs east from the interchange to a premature end at Kerby Avenue opposite Gantenbein Avenue. Intended to continue northeast to the unconstructed Prescott Freeway as the Rose City Freeway, the freeway spur provides local access to the Boise section of the city from the Fremont Bridge.

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A ramp from Greeley Avenue joins Interstate 5 south from within the Fremont Bridge stack interchange. U.S. 30 east merges onto the freeway ahead of the Exit 302A ramp departure to Broadway west at the Rose Quarter. Portland's Rose Quarter consists of the Rose Garden Arena (completed 1995), home of the Portland Trailblazers, and the older Memorial Coliseum. The Western Hockey League Portland Winterhawks split their home games between the two arenas.

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Looking west at the Fremont Bridge from Interstate 5 south within the stack with Interstate 405. The arch bridge opened to traffic on November 11, 1973.

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Flyovers shuttle traffic between I-5/405 while the two bridges at the left represent the Stadium Freeway mainline east to Kirby Avenue. The stadium freeway derives its name from Providence Park (formerly Civic Stadium).

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U.S. 30 eastbound traffic expands Interstate 5 south to four lanes briefly to the split diamond interchange (Exit 302A) with the one way street couplet of Broadway (west) and Weidler Street (east).

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Exit 302A parts ways with I-5 south & U.S. 30 east 0.75 miles north of Interstate 84 (Exit 301). Points of interest for Exit 302A include the Oregon Convention Center and Lloyd Center shopping mall.

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Exit 302 splits into ramps for Broadway west to the Broadway Bridge (former OR 99W) and the city center and Vancouver Street south to the Rose Garden. I-84/U.S. 30 meanwhile join Portland with the eastern suburb of Gresham.

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Similar to the configuration of Interstate 5 in Seattle where Pine Street and Boren Avenue intersect above the freeway, Interstate 5 in Portland passes under the intersection of Williams Avenue and NE Broadway.

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The on-ramp from Wheeler Avenue and Winning Way forms an auxiliary lane to I-84/U.S. 30 east (Exit 301). Spires of the Oregon Convention Center rise along the east side of the freeway.

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I-84/U.S. 30 share pavement for most of the drive east through the Columbia River Gorge, with U.S. 30 acting as a business loop through various towns along the way. The Dalles lies 83 miles to the east.

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Interstate 84 travels 779 miles east from Portland, Oregon to Interstate 80 at Echo, Utah. The freeway connects Pendleton, Boise and Ogden, Utah.
Leaving from within the exchange at Exit 301 is Exit 300B, a lengthy c/d roadway south to the Morrison Bridge west and Belmont Street east to OR 99E.

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Interstate 5 lowers from the viaduct that commenced at Multnomah Street to grade level south of the Burnside Bridge. The freeway parallels the Willamette River directly from Interstate 84 to the Marquam Bridge. Passing above is the flyover for Exit 301. A ramp stub on the flyover remains from a removed ramp between Interstate Avenue at the Steel Bridge. A second stub exists on the northbound I-5 on-ramp from the Banfield Expressway to that once connected with Glisan Street. These ramps were removed after 1990.

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There is no direct connection to U.S. 26 from I-5 south. Instead travelers are directed south along Martin Luther King, Jr. Boulevard (OR 99E) to Powell Boulevard at the east end of the Ross Island Bridge. OR 99E leads southeast from there to the city of Milwaukie.

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Exit 300B branches off the Interstate 5 mainline ahead of the Burnside Bridge (former U.S. 30 Business). Interests to Oregon Museum of Science and Industry (OMSI) are directed onto OR 99E south to Clay Street west. OR 99E otherwise continues southeast to Oregon City via McLoughlin Boulevard.

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The flyover from Interstate 84 west onto Interstate 5 south includes a slip ramp to Exit 300B for the Morrison Bridge and OR 99E.

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South of the Burnside Bridge is the Interstate 84 westbound on-ramp and the directional interchange with the Morrison Bridge. The Morrison Bridge spans the Willamette to Naito Parkway (former OR 99W) and Washington Street west at downtown Portland.

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Exit 300B partitions above Interstate 5 for the Belmont Street viaduct east to OR 99E (Martin Luther King, Jr. Boulevard south / Grand Avenue north) at the Buckman section of Portland and the Morrison Bridge west to the city center. OR 99E next interacts with Interstate 5 at Salem.

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Traveling under the Morrison Bridge ramps on Interstate 5 south. The Morrison Bridge was built in 1958; the ramps to Interstate 5 were added in 1961.

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Beginning the ascent onto the Marquam Bridge along Interstate 5 south. Ramp stubs exist both on the left and right side of the southbound roadway for the unconstructed Mt. Hood Freeway. Had the Mt. Hood Freeway been built, it would have carried U.S. 26 east along Division Street to the Richmond neighborhood and along Powell Boulevard through South Tabor.

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I-5 south crosses the Willamette River and meets Interstate 405 (Stadium Freeway) at the west end of the Marquam Bridge. The mainline departs southward ahead of Harbor Drive as the Stadium Freeway takes over from the left to encircle the city center.

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Interstate 5 south utilizes the lower deck of the cantilever Marquam bridge. Named after Philip Marquam (1823-1912), an Oregon state legislator and real estate developer, the span travels 1,043 feet at a heigh 130 feet above the Willamette River. The bridge opened in October 1966 at a cost of $14 million.¹

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Four lanes of I-5 south partition into two lane ramps for Interstate 405 (Stadium Freeway) north to U.S. 26 (Sunset Highway) and I-5 south to Tigard and Salem. The left exit for Interstate 405 is a result of the planned left side merge of the Mt. Hood Freeway onto the Marquam Bridge.

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A three-wye interchange ties the south end of the Marquam Bridge with Interstate 405 (Stadium Freeway) north. U.S. 26 joins I-405 nearby before exiting central Portland via the Sunset Highway freeway to Beaverton, Hillsboro and the Oregon coast.

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Turning southward, Interstate 5 merges with SW Harbor Drive (Interstate 405) ahead of the Ross Island Bridge (U.S. 26). Exit 299A departs before the merge with Harbor Drive onto parallel OR 43 (SW Hood Avenue). OR 43 begins and travels 11.60 miles south to Lake Oswego and West Linn.

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Harbor Drive appears to the left as Interstate 5 nears departure of Exit 299A. OR 43 utilizes a one way street couplet alongside I-5 at Johns Landing.

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Passing under Kelly Avenue (OR 43 north), Interstate 5 splits with Exit 299A adjacent to the Ross Island Bridge westbound ramp forming OR 43 south.

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Interstate 5 takes several turns from OR 43 (Hood Avenue) to South Burlingame. This stretch of roadway leads to the locally known "Terwilliger Curves" portion of freeway.

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1.50 miles north of Terwilliger Boulevard off-ramp (Exit 297) on Interstate 5 south. A distance sign lists the destinations to the capital city of Salem, Eugene, and Medford.

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Exit 297 departs Interstate 5 south for Barbur Boulevard (former OR 99W) at Bertha Boulevard. Terwilliger Boulevard intersects Barbur Boulevard to the east and travels to South Burlingame and Lewis and Clark College and north to Hillsdale and Capitol Highway (OR 10).

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Taking Exit 297, drivers split into lanes for Barbur Boulevard west to Capitol Hill, Bertha Boulevard north to Hillsdale and Barbor Boulevard east to Terwilliger Boulevard.

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OR 10 is a 18.55 mile route stretching west from the U.S. 26 (Ross Island Bridge) interchange with Naito Parkway to OR 219 west of Farmington. The state route is locally maintained along Capitol Highway west from Barbur Boulevard to Bertha Boulevard, where it turns onto Beaverton-Hillsdale Highway.

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Continuing southwest, Interstate 5 motorists next approach the wye interchange (Exit 297) with Multnomah Boulevard west. Multnomah Boulevard ventures west to the Maplewood and Ashcreek neighborhoods of Portland.

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Exit 296B veers west from Interstate 5 onto Multnomah Boulevard. Drivers taking the ramp pass under SW 19th Avenue and Barbur Boulevard (former OR 99W) to form the two lane road. Exit 296A provides direct access to parallel Barbur Boulevard at SW 24th Avenue.

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A pair of loop ramps join Interstate 5 with Barbur Boulevard at Spring Garden Street via Exit 296A. Former OR 99W remains parallel to Interstate 5 as a commercial arterial to Crestwood and West Portland Park.

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Six lanes of Interstate 5 travel between the Multnomah and Markham neighborhoods of southwest Portland.

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Capitol Highway, the same roadway that was a part of OR 10 at Hillsdale, crosses paths with Interstate 5 at Exit 295.

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Exit 295 joins Interstate 5 south with Taylors Ferry Road west of Capitol Highway at Crestwood. Capitol Highway continues south of the freeway to become SW 49th Avenue at the Far Southwest neighborhood.

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Barbur Boulevard (old OR 99W) and Capitol Highway intersect on the overpasses above Interstate 295 at Exit 295. Exit 295 consists of just a southbound off-ramp and northbound return ramp.

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Nearing the Portland city line, Interstate 5 meets Barbur Boulevard one final time at the beginning of OR 99W (Exit 294).

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OR 99W leads southwest to OR 18 at McMinnville. OR 18 begins there and travels west 53.05 miles to U.S. 101 north of Lincoln City.

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Exit 294 consists of a wye interchange with OR 99W south, overlaid with a half diamond interchange from Interstate 5 north. The state route follows Pacific Highway southwest through Tigard to Sherwood and Newberg.

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Curving southward again, Interstate 5 next reaches Exit 293 with SW 68th Avenue and Dartmouth Street in the city of Tigard.

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The on-ramp from OR 99W and SW 64th Avenue forms an auxiliary lane to the parclo interchange at Exit 293. Interstate 5 leaves the city of Portland and enters Washington County here.

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