How to Find Us

The ColumbiaGrid offices are located near the Portland International Airport (PDX) in the Portland International Plaza building just off NE 82nd Avenue.

Our address is:

8338 NE Alderwood Road, Suite 140
Portland, OR 97220

Phone: 503-943-4940
Fax: 503-943-4941

Directions and a map to our offices can be found here.

A list of nearby hotels can be found here.


Member: Tacoma Power      Project: ColumbiaGrid     
Tacoma Power

"As a charter member of ColumbiaGrid, Tacoma Power has observed the benefits for its customers of regional transmission planning. Engaging in the ColumbiaGrid collaborative transmission planning process has fostered diverse and innovative solutions. This open process for identifying and resolving transmission challenges has delivered cost-effective reliability to our entire region."
~~ William A. Gaines, Director of Utilities