# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001437749-24-006640
Filing Date
2024-03-05
Accepted
2024-03-05 16:34:41
Documents
115
Period of Report
2023-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | FORM 10-K | nwpx20231231c_10k.htm iXBRL | 10-K | 2025935
2 | EXHIBIT 21.1 | ex_602812.htm | EX-21.1 | 4133
3 | EXHIBIT 23.1 | ex_602813.htm | EX-23.1 | 2667
4 | EXHIBIT 31.1 | ex_602814.htm | EX-31.1 | 14009
5 | EXHIBIT 31.2 | ex_602815.htm | EX-31.2 | 14051
6 | EXHIBIT 32.1 | ex_602816.htm | EX-32.1 | 4804
7 | EXHIBIT 32.2 | ex_602817.htm | EX-32.2 | 5031
8 | EXHIBIT 97 | ex_608626.htm | EX-97 | 28977
14 |  | a01.jpg | GRAPHIC | 64848
| Complete submission text file | 0001437749-24-006640.txt |  | 10856006

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
9 | XBRL TAXONOMY EXTENSION SCHEMA | nwpx-20231231.xsd | EX-101.SCH | 93736
10 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE | nwpx-20231231_cal.xml | EX-101.CAL | 85142
11 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE | nwpx-20231231_def.xml | EX-101.DEF | 640376
12 | XBRL TAXONOMY EXTENSION LABEL LINKBASE | nwpx-20231231_lab.xml | EX-101.LAB | 552910
13 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE | nwpx-20231231_pre.xml | EX-101.PRE | 690428
117 | EXTRACTED XBRL INSTANCE DOCUMENT | nwpx20231231c_10k_htm.xml | XML | 1887209

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.: 24721247
SIC: 3317 Steel Pipe & Tubes
(CF Office: 04 Manufacturing)