Northwest Pipe Co. reported the highest annual sales and earnings in its history for 2005. Sales were $329 million, compared to $292 million in 2004, and annual net income was $13.4 million, compared to $12.4 million in 2004. Tubular Products Group sales were $80.7 million, compared to $102.5 million the previous year. The decline was attributable to exceptional sales in 2004 that were unsustainable.