EXHIBIT 23.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statement on Forms S-3 (No. 333-216802) and S-8 (Nos. 333-190854, 333-20165, and 333-152573) of Northwest Pipe Company of our report dated March 4, 2016 (except with respect to our opinion on the consolidated financial statements insofar as it relates to the effects of discontinued operations discussed in Note 3, as to which the date is March 16, 2018), relating to the financial statements and financial statement schedule, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP
Portland, Oregon
March 16, 2018