# Filing Detail

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)

EIN.: 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