# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001437749-23-006891
Filing Date
2023-03-16
Accepted
2023-03-16 16:08:54
Documents
110
Period of Report
2022-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | FORM 10-K | nwpx20221231_10k.htm iXBRL | 10-K | 2036874
2 | EXHIBIT 21.1 | ex_475821.htm | EX-21.1 | 4157
3 | EXHIBIT 23.1 | ex_475822.htm | EX-23.1 | 2823
4 | EXHIBIT 31.1 | ex_475823.htm | EX-31.1 | 13444
5 | EXHIBIT 31.2 | ex_475824.htm | EX-31.2 | 13214
6 | EXHIBIT 32.1 | ex_475825.htm | EX-32.1 | 5615
7 | EXHIBIT 32.2 | ex_475826.htm | EX-32.2 | 4939
13 |  | pic1.jpg | GRAPHIC | 64935
| Complete submission text file | 0001437749-23-006891.txt |  | 10711940

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
8 | XBRL TAXONOMY EXTENSION SCHEMA | nwpx-20221231.xsd | EX-101.SCH | 90150
9 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE | nwpx-20221231_cal.xml | EX-101.CAL | 86991
10 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE | nwpx-20221231_def.xml | EX-101.DEF | 637527
11 | XBRL TAXONOMY EXTENSION LABEL LINKBASE | nwpx-20221231_lab.xml | EX-101.LAB | 538753
12 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE | nwpx-20221231_pre.xml | EX-101.PRE | 682647
104 | EXTRACTED XBRL INSTANCE DOCUMENT | nwpx20221231_10k_htm.xml | XML | 1874962

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.: 23738841
SIC: 3317 Steel Pipe & Tubes