# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001437749-25-005465
Filing Date
2025-02-27
Accepted
2025-02-27 16:09:10
Documents
118
Period of Report
2024-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | FORM 10-K | nwpx20241231_10k.htm iXBRL | 10-K | 2097090
2 | EXHIBIT 19.1 | ex_752261.htm | EX-19.1 | 44996
3 | EXHIBIT 21.1 | ex_727600.htm | EX-21.1 | 4237
4 | EXHIBIT 23.1 | ex_727601.htm | EX-23.1 | 2594
5 | EXHIBIT 31.1 | ex_727602.htm | EX-31.1 | 14136
6 | EXHIBIT 31.2 | ex_727603.htm | EX-31.2 | 14180
7 | EXHIBIT 32.1 | ex_727604.htm | EX-32.1 | 5031
8 | EXHIBIT 32.2 | ex_727605.htm | EX-32.2 | 5233
14 |  | ctrchart.jpg | GRAPHIC | 35520
15 |  | nwpipe01.jpg | GRAPHIC | 6542
16 |  | nwpipe02.jpg | GRAPHIC | 3761
| Complete submission text file | 0001437749-25-005465.txt |  | 11012080

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
9 | XBRL TAXONOMY EXTENSION SCHEMA | nwpx-20241231.xsd | EX-101.SCH | 93389
10 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE | nwpx-20241231_cal.xml | EX-101.CAL | 81151
11 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE | nwpx-20241231_def.xml | EX-101.DEF | 628628
12 | XBRL TAXONOMY EXTENSION LABEL LINKBASE | nwpx-20241231_lab.xml | EX-101.LAB | 549155
13 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE | nwpx-20241231_pre.xml | EX-101.PRE | 684058
121 | EXTRACTED XBRL INSTANCE DOCUMENT | nwpx20241231_10k_htm.xml | XML | 1904586

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.: 25678770
SIC: 3317 Steel Pipe & Tubes
(CF Office: 04 Manufacturing)