PORTLAND, OR -- (MARKET WIRE) -- March 26, 2007 -- Northwest Pipe Company (NASDAQ: NWPX) reported today that it received a verbal commitment to be pipe supplier to Western Summit Constructors, Inc. of Denver, Colorado for the City of Aurora, Colorado.

The Company will supply pipe and fittings ranging from 10-inch through 72-inch diameter valued at approximately $12 million for an engineered and custom fabricated piping system to be installed in the Utility Corridor and Yard Piping project. The pipe is expected to be manufactured in the Company's Denver, Colorado division, and the majority of the fabricated items will be completed in Monterrey, Mexico. Delivery scheduled to begin in the third quarter of 2007.

Northwest Pipe Company manufactures welded steel pipe 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.

This release contains forward-looking statements, including but not limited to those regarding the project described above. These statements reflect management's current views and estimates of market circumstances, industry conditions and Company performance. Actual results could vary materially from the description contained herein due to many factors including market demand, operating efficiencies, availability and price of raw materials, and other risks described from time to time in the Company's reports to the Securities and Exchange Commission.

Contact Information: For more information, contact: Brian Dunham 503-946-1200