PORTLAND, OR -- (MARKET WIRE) -- February 15, 2007 -- Northwest Pipe Company (NASDAQ: NWPX) announced today that it will broadcast its fourth quarter 2006 earnings conference call on Thursday, February 22, 2007, at 8:00 a.m. PT via live internet webcast.

The conference broadcast can be accessed at the Investor Relations section of the Company's website located at http://www.nwpipe.com. For those unable to attend the live broadcast, a replay will be available at the Investor Relations section of the Company's website or by dialing 800-945-4244 approximately one hour after the event.

Northwest Pipe Company manufactures welded steel pipe and other products in three business segments. Its Water Transmission Group is a leading supplier of large diameter, high-pressure steel pipe products that are used primarily for water infrastructure in North America. Its Tubular Products Group manufactures smaller diameter steel pipe for a wide range of construction, agricultural, energy, industrial and mechanical applications. Its Fabricated Products Group manufactures propane tanks and other fabricated products. The Company is headquartered in Portland, Oregon and has nine manufacturing facilities across the United States and Mexico.

Contact Information: CONTACT: Brian Dunham President and CEO (503) 946-1200