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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001193125-12-191419
Filing Date
2012-04-27
Accepted
2012-04-27 16:51:46
Documents
14
Period of Report
2011-12-31

Document Format Files

Seq Description Document Type Size
1 FORM 10-K d283587d10k.htm 10-K 1517063
2 SUBSIDIARIES OF THE REGISTRANT d283587dex211.htm EX-21.1 1113
3 CONSENT OF DELOITTE & TOUCHE LLP d283587dex231.htm EX-23.1 1970
4 CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES d283587dex311.htm EX-31.1 10792
5 CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES d283587dex312.htm EX-31.2 10644
6 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 d283587dex321.htm EX-32.1 3572
7 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 d283587dex322.htm EX-32.2 3574
14 GRAPHIC g283587g63n70.jpg GRAPHIC 56810
  Complete submission text file 0001193125-12-191419.txt   6215665

Data Files

Seq Description Document Type Size
8 XBRL INSTANCE DOCUMENT nwpx-20111231.xml EX-101.INS 1181119
9 XBRL TAXONOMY EXTENSION SCHEMA nwpx-20111231.xsd EX-101.SCH 16468
10 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE nwpx-20111231_cal.xml EX-101.CAL 45137
11 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE nwpx-20111231_def.xml EX-101.DEF 13032
12 XBRL TAXONOMY EXTENSION LABEL LINKBASE nwpx-20111231_lab.xml EX-101.LAB 166864
13 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE nwpx-20111231_pre.xml EX-101.PRE 113928
Mailing Address 5721 SE COLUMBIA WAY SUITE 200 VANCOUVER WA 98661
Business Address 5721 SE COLUMBIA WAY SUITE 200 VANCOUVER WA 98661 3603976250
NORTHWEST PIPE CO (Filer) CIK: 0001001385 (see all company filings)

IRS No.: 930557988 | State of Incorp.: OR | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 000-27140 | Film No.: 12790514
SIC: 3317 Steel Pipe & Tubes