<SEC-DOCUMENT>0001437749-18-010505-index.html : 20180522
<SEC-HEADER>0001437749-18-010505.hdr.sgml : 20180522
<ACCEPTANCE-DATETIME>20180522160123
ACCESSION NUMBER:		0001437749-18-010505
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		1
<RULE>
<RULE-NAME>13p-1
<ITEM>
<ITEM-NUMBER>1.01
<ITEM-PERIOD>20171231
</ITEM>
</RULE>
FILED AS OF DATE:		20180522
DATE AS OF CHANGE:		20180522

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NORTHWEST PIPE CO
		CENTRAL INDEX KEY:			0001001385
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL PIPE & TUBES [3317]
		IRS NUMBER:				930557988
		STATE OF INCORPORATION:			OR
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27140
		FILM NUMBER:		18852411

	BUSINESS ADDRESS:	
		STREET 1:		5721 SE COLUMBIA WAY
		STREET 2:		SUITE 200
		CITY:			VANCOUVER
		STATE:			WA
		ZIP:			98661
		BUSINESS PHONE:		3603976250

	MAIL ADDRESS:	
		STREET 1:		5721 SE COLUMBIA WAY
		STREET 2:		SUITE 200
		CITY:			VANCOUVER
		STATE:			WA
		ZIP:			98661
</SEC-HEADER>
<DOCUMENT>
<TYPE>SD
<SEQUENCE>1
<FILENAME>nwpx20180516_sd.htm
<DESCRIPTION>FORM SD
<TEXT>
Document 1 - file: nwpx20180516_sd.htm

</DOCUMENT>
</SEC-DOCUMENT>