# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001437749-19-005087
Filing Date
2019-03-15
Accepted
2019-03-15 17:28:22
Documents
109
Period of Report
2018-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | FORM 10-K | nwpx20181231_10k.htm | 10-K | 1756058
2 | EXHIBIT 21.1 | ex_136873.htm | EX-21.1 | 3859
3 | EXHIBIT 23.1 | ex_136874.htm | EX-23.1 | 3100
4 | EXHIBIT 31.1 | ex_136875.htm | EX-31.1 | 15598
5 | EXHIBIT 31.2 | ex_136876.htm | EX-31.2 | 15844
6 | EXHIBIT 32.1 | ex_136877.htm | EX-32.1 | 5122
7 | EXHIBIT 32.2 | ex_136878.htm | EX-32.2 | 4971
14 |  | nwpx20181231_10kimg001.gif | GRAPHIC | 15204
| Complete submission text file | 0001437749-19-005087.txt |  | 10328389

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
8 | XBRL INSTANCE DOCUMENT | nwpx-20181231.xml | EX-101.INS | 2401099
9 | XBRL TAXONOMY EXTENSION SCHEMA | nwpx-20181231.xsd | EX-101.SCH | 91045
10 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE | nwpx-20181231_cal.xml | EX-101.CAL | 103231
11 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE | nwpx-20181231_def.xml | EX-101.DEF | 628697
12 | XBRL TAXONOMY EXTENSION LABEL LINKBASE | nwpx-20181231_lab.xml | EX-101.LAB | 580872
13 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE | nwpx-20181231_pre.xml | EX-101.PRE | 682134

Mailing Address 201 NE PARK PLAZA DRIVE SUITE 100 VANCOUVER WA 98684
Business Address 201 NE PARK PLAZA DRIVE SUITE 100 VANCOUVER WA 98684 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.: 19686087
SIC: 3317 Steel Pipe & Tubes