Description Clay oval circuit, slighly banked. Not to be confused with Portland International Raceway.
The circuit was closed in 2002 after 77 years, so I think it was opened in 1925. It seems that for a period it has been a paved track. Moreover, sources don’t agree about track length.
Location Portland
OR - Oregon - Western States
Location 9727 North Martin Luther King Jr. Boulevard
Portland, OR 97217
Latitude - Longitude + 45°35'38"     -122°40'12"
45.593889     -122.67
UTM Coordinates X = 525738.957  -  Y = 5048980.339  -  Zone 10T
Aerial photo / Map (*) Aerial photo / Map (*) OpenStreetMap  -   Aerial photo / Map (*) Google Maps  -   Aerial photo / Map (*) Bing Maps  -   Aerial photo / Map (*) Flash Earth  -   Aerial photo / Map (*) Wikimapia  -   Aerial photo / Map (*) Microsoft Research Maps  -   Aerial photo / Map (*) MapQuest
Altitude AMSL 6 m - 20 ft
Inauguration 1925
Closing 2002
Sources and links (Translation) (**)
(1) English (United States)
(2) English (United States)
(3) English (United States) song for Portland Speedway (January 16th 2002) [Publishing date: January 16th 2002]

(*) NOTE: a complete and detailed view of the circuit can be found (if available) on Street View by Google Maps and/or Bird's Eye and 3D views by Bing Maps for Enterprise (former Microsoft Virtual Earth): both can be reached using their own link in Aerial photo / Map cell.

(**) For on-line not-English speaking sources, click on each small flag and you open the corresponding Google Translator page with automatic translation.

Portland Speedway
Direction Anticlockwise   Anticlockwise
Progetto Proposal NO
No longer operational YES
Car Circuit YES
Motorbike circuit  
Type Dirt Oval course
Inauguration 1925
Closing 2002
Last update of this page June 20th 2007
Info last update  
Distinctive points  
length 603  m 1980  ft 3/8  mi   (1)
length 805  m 2640  ft 1/2  mi   (2)
length 805  m 2640  ft 1/2  mi Calculated from aerial photo (*)  

Date Track layout Years Description by Map by Thanks to Note
June 20th 2007     Lorenzo Tommasi     New Description without map
Not all eventual updates issued in last years are already visible in this list
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