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Portland Bureau of Transportation

We keep Portland moving

Phone: 503-823-5185

Fax: 503-823-7576

1120 SW Fifth Ave, Suite 800, Portland, OR 97204

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Topography

This map shows the general topography  - the Tualatin Mountains and Mt. Tabor and then the other buttes in southeast and northeast. You can also see here where the Banfield is - Sullivan's Gulch.  It was created when one of the ice dams broke during the glacial age. Water poured down through here and made created this channel. Since then it has been a convenient place to put a lot of transportation. The other thing you can see from this map is that downtown Portland did have a firm bank - everywhere else, on the east side for instance, where the Central Eastside industrial area is today, was all marsh land and then if you go South from there it's all up on bluffs.
 

Heartbleed Security Notice

A serious security vulnerability known as "Heartbleed" was recently discovered in OpenSSL, a popular software library commonly used by many websites on the internet to encrypt communication between a user's computer and a web server.

PortlandOregon.gov is NOT affected by this vulnerability as it does not use the OpenSSL software library. Please rest assured we are dedicated to protecting your security on this website.