VANCOUVER, WA--(Marketwire - April 17, 2008) - Northwest Pipe Company (NASDAQ: NWPX) announced today that it will broadcast its first quarter 2008 earnings conference call on Wednesday, April 23, 2008, 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 800-934-9421 approximately one hour after the event.

Northwest Pipe Company manufactures welded steel pipe and other products in three business groups. 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, traffic signposts, 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 ten manufacturing facilities across the United States and Mexico.

Contact Information: CONTACT: Brian Dunham President and CEO (360) 397-6250