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Interstate 205 Oregon/Washington

 

Interstate 205 is generally a six-lane, divided freeway that bypasses Portland by way of Oregon City and Portland International Airport. The rights of way for Interstate 205 are wide enough to allow for future expansion. Photo taken by AARoads (08/27/06).

Routing

Interstate 205 is the eastern bypass of the Portland metropolitan area. The mileage-based exit numbering system continues from Oregon north into Washington. Fully opened in 1983 with the opening of the Glenn Jackson Bridge over the Columbia River, the first section of Interstate 205 to begin construction was the bridge over the Willamette River in West Linn, in 1968.

To avoid the Interstate Bridge north of downtown Portland on Interstate 5, Interstate 205 is a recommended alternate route for through traffic.

History

Construction of Interstate 205, the East Portland Freeway, was delayed throughout the 1970s as a result of a series of challenges related to the Environmental Impact Statement.1 Nevertheless, Interstate 205 was completed in stages between 1970 and 1983:

  • 1968-1970: Willamette River Bridge opened in West Linn on May 28, 1970
  • 1974: freeway from Interstate 5 northeast to West Linn and Oregon City opened in Clackamas County
  • 1974-1978: controversy erupts over Multnomah County segment, with protests made to the Environmental Quality Commission. A compromise crafted by Glenn L. Jackson (Oregon Transportation Commission Chair) was reached between the various parties involved: community groups, environmentalists, and governmental agencies. By 1978, Interstate 205 construction was allowed to continue after a nearly five-year hiatus.
  • 1978-1979: most controversial segment of Interstate 205 in Multnomah County constructed as a six-lane facility with fewer interchanges and fewer lanes than originally proposed; rights of way reserved for a busway
  • December 1982: Glenn L. Jackson Bridge over the Columbia River opened, thus completing the Oregon section of Interstate 205. This bridge was featured on the cover of that year's Oregon Official State Map.
  • 1983: Washington section of Interstate 205 completed, thus finishing the bypass route

Interstate 205 was the last spur or bypass Interstate route to be constructed in Oregon.

Highway Guides

Southern Terminus - Interstate 5 - Tualatin, Oregon
Perspective from Interstate 205 South
Southbound Interstate 205 approaches its final exit at Exit 1, Junction Interstate 5 south to Salem and north to Portland, two miles. Photo taken by Chris Elbert (04/24/05).
The rainfall picked up a bit. The Interstate 5 interchange is another mile south of this point on southbound Interstate 205. Photo taken by Chris Elbert (04/30/05).
The left lanes of southbound Interstate 205 continue south on Interstate 5, while the right lane exits only onto northbound Interstate 5 to Tigard and Portland. The freeway widens out to three lanes. Photo taken by Chris Elbert (04/24/05).
Interstate 205 southbound reaches its southern terminus, as it splits into north and southbound Interstate 5 ramps. There is no END shield, just like most other Portland-area freeways. Photo taken by Chris Elbert (04/30/05).
Perspective from Interstate 5 North
Northbound Interstate 5 reaches Exit 286, Stafford/North Wilsonville. The next exit along northbound is Exit 288, Junction Interstate 205 north. Photo taken by AARoads (08/27/06).
This diagrammatical signage displays the Portland Interstate network prior to the split of Interstate 205 from northbound Interstate 5. A similar sign is posted on Interstate 95 as it approaches Richmond, Virginia, for its split with Interstate 295. Photo taken by AARoads (08/27/06).
Interstate 205 approach signage on Interstate 5 northbound. Photo taken by AARoads (08/27/06).
This mileage sign provides the distance to various destinations along northbound Interstate 205, including Oregon City and the Portland International Airport. Photo taken by AARoads (08/27/06).
Interstate 5 northbound at the tri-level stack interchange with Interstate 205 (Exit 288). Photo taken by AARoads (08/27/06).
Perspective from Interstate 5 South
Southbound Interstate 5 approaches Exit 288, Junction Interstate 205 north, 1.50 miles. Photo taken by Chris Elbert (03/06/05).
Continuing south, the next two exits are Exit 288, Tualatin/Sherwood and Exit 288, Junction Interstate 205 north. Photo taken by Chris Elbert (04/30/05).
The right two lanes connect to north Interstate 205, while the left three lanes continue south on Interstate 5 toward Salem, Eugene, Medford, and California. Photo taken by Chris Elbert (04/30/05).
The northbound beginning of Interstate 205 departs Interstate 5 southbound at Exit 288 in Tualatin. Traffic to the Portland bypass leaves Interstate 5 south at the Sagert Street over crossing. Interstate 205 loops east six miles to West Linn and eight miles to Oregon City before turning north to Clackamas and east Portland. Photo taken by AARoads (08/27/06).
The two-lane transition ramp from southbound Interstate 5 to northbound Interstate 205 forms the bottom of a tri-level stack interchange that is only visible from this ramp. Here, the ramp passes under Interstate 5. Photo taken by Chris Elbert (03/06/05).
Perspective from Interstate 205 North
After transitioning from southbound Interstate 5 to northbound Interstate 205, this mileage sign provides the distance to Portland International Airport (24 miles). The freeway interchange is a tri-level stack with high mast lighting. Merging lanes ahead bring additional traffic from northbound Interstate 5 onto Interstate 205 north. Photo taken by AARoads (08/27/06).
Shortly thereafter, Interstate 205 north enters Clackamas County. Photo taken by AARoads (08/27/06).
This is the first Interstate 205 north shield assembly. Note how the Interstate 205 freeway is designated as the "Veterans Memorial Highway" in Oregon. There are not many roadside reassurance shields for Interstate 205; most reassurance markers are posted on overhead signs along this route. Photo taken by AARoads (08/27/06).
The first exit along Interstate 205 north is Exit 1, Stafford Road to Lake Oswego. Photo taken by AARoads (08/27/06).
Shortly after Exit 1, this overhead features an older Interstate 205 north pull through sign as well as mileage to Oregon City, Junction Interstate 84 (and U.S. 30), and Portland International Airport. Photo taken by AARoads (08/27/06).
Northern Terminus - Interstate 5 - Salmon Creek, Washington
Perspective from Interstate 205 North
The final exit on northbound Interstate 205 is Exit 36, N.E. 134th Street, which serves Washington State University at Vancouver. Note the pull though sign, which indicates Interstate 5 rather than Interstate 205 as the main route number. An end shield is posted ahead (see next photobox). Photo taken by Chris Elbert (05/28/05).
An END shield is posted at the northern end of Interstate 205 in Washington near the point where the freeway merges onto Interstate 5. Photo taken by Chris Elbert (05/28/05).
Perspective from Interstate 5 South
The first appearance of signage for Interstate 205 appears along southbound Interstate 5 at the offramp for Exit 9, N.E. 179th Street near Ridgefield. Photo taken by Chris Elbert (11/26/05).
Interstate 205 is touted as the best route to Interstate 84 eastbound. This one of the few Interstate 84 shields to appear in Washington state, since that route remains south of the Columbia River in the state of Oregon. Photo taken by Chris Elbert (11/26/05).
Use the Interstate 205 south offramp to connect to N.E. 134th Street, Washington State University at Vancouver, and Portland International Airport. Photo taken by Chris Elbert (11/26/05).
Southbound Interstate 5 reaches Exit 7, Junction Interstate 205 south to bypass the Portland metropolitan area. This sign bridge is located near Ridgefield just north of Vancouver. Notice the TO Interstate 84 and Washington 14 indicators on the Interstate 205 south signs. Photo taken by Chris Elbert (11/26/05).

Sources:

  1. Interstate 50th Anniversary: The Story of Oregonís Interstates

Page Updated September 10, 2006.

 
Mileage

State Oregon
Mileage 26.07
Cities Portland, Milwaukie, Parkrose
Junctions Interstate 5, Interstate 84
State Washington
Mileage 10.57
Cities Vancouver
Junctions Interstate 5
TOTAL 36.64
Source: October 31, 2002 Interstate Route Log and Finders List
Interstate 205 Annual Average Daily Traffic

Oregon
County From Exit: To Exit: AADT Composite
Washington/
Clackamas
Exit 1/ I-5 Pacific Hwy. Exit 3/ Wankers Corner 83,300
Clackamas Exit 3/ Wankers Corner Exit 6/ S. West Linn 87,600
Clackamas Exit 6/ S. West Linn Exit 8A/ OR 43 Willamette Falls Viewpoint 92,200
Clackamas Exit 8A/ OR 43 Willamette Falls Viewpoint Exit 8B/ OR 43 West Linn 102,500
Clackamas Exit 8B/ OR 43 West Linn Exit 9/ OR 99E Oregon City 110,100
Clackamas Exit 9/ OR 99E Oregon City Exit 10/ Oregon 213 south Park Place 138,400
Clackamas Exit 10/ Oregon 213 south Park Place Exit 11/ Gladstone 127,500
Clackamas Exit 11/ Gladstone Exit 12/ OR 212-224 Clackamas 138,600
Clackamas Exit 12/ OR 212-224 Clackamas Exit 13/ OR 224 north Lake Road 102,600
Clackamas Exit 13/ OR 224 north Lake Road Exit 14/ Sunnyside Road 122,300
Clackamas Exit 14/ Sunnyside Road Exit 16/ Johnson Creek Blvd. 139,800
Clackamas/
Multnomah
Exit 16/ Johnson Creek Blvd. Exit 17/ Foster & Woodstock 148,700
Multnomah Exit 17/ Foster & Woodstock Exit 19/ Division & Powell 153,200
Multnomah Exit 19/ Division & Powell Exit 20B/ Stark-Washington St. 168,100
Multnomah Exit 20B/ Stark-Washington St. Exit 20C/ N.E. Glisan Street 146,800
Multnomah Exit 20C/ N.E. Glisan Street Exit 20D/ I-84 S. Banfield 127,300
Multnomah Exit 20D/ I-84 S. Banfield Exit 22/ I-84 N. Banfield 134,900
Multnomah Exit 22/ I-84 N. Banfield Exit 23AB/ U.S. 30 Bypass Columbia Blvd. Sandy Blvd. 157,000
Multnomah Exit 23AB/ U.S. 30 Bypass Columbia Blvd. Sandy Blvd. Exit 24/ Airport Way 139,500
Multnomah Exit 24/ Airport Way WA state line 135,900
Washington
County Milepost Location AADT Composite
Clark 026.59 OR state line 136,000
Clark 029.09 At Mill Plain interchange/ Exit 28 104,000
Clark 036.27 Before ramps with NE 134th Street 50,000
Source: 2002 Traffic Volumes (ODOT)
2002 Annual Traffic Report (WSDOT)

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