<SEC-DOCUMENT>0000874238-25-000049-index.html : 20250320
<SEC-HEADER>0000874238-25-000049.hdr.sgml : 20250320
<ACCEPTANCE-DATETIME>20250320160644
ACCESSION NUMBER:		0000874238-25-000049
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		66
CONFORMED PERIOD OF REPORT:	20250320
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20250320
DATE AS OF CHANGE:		20250320

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STERLING INFRASTRUCTURE, INC.
		CENTRAL INDEX KEY:			0000874238
		STANDARD INDUSTRIAL CLASSIFICATION:	HEAVY CONSTRUCTION OTHER THAN BUILDING CONST - CONTRACTORS [1600]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		IRS NUMBER:				251655321
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31993
		FILM NUMBER:		25756477

	BUSINESS ADDRESS:	
		STREET 1:		1800 HUGHES LANDING BLVD.
		STREET 2:		SUITE 250
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77380
		BUSINESS PHONE:		281-214-0777

	MAIL ADDRESS:	
		STREET 1:		1800 HUGHES LANDING BLVD.
		STREET 2:		SUITE 250
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77380

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STERLING CONSTRUCTION CO INC
		DATE OF NAME CHANGE:	20020329

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OAKHURST CO INC
		DATE OF NAME CHANGE:	19950831

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OAKHURST CAPITAL INC
		DATE OF NAME CHANGE:	19931130
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>strl-20250320.htm
<DESCRIPTION>FORM 8-K
<TEXT>
Document 1 - file: strl-20250320.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a20250320ex991pressrelease.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: a20250320ex991pressrelease.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>3
<FILENAME>a2025sustainabilityrepor.htm
<DESCRIPTION>EX-99.2
<TEXT>
Document 3 - file: a2025sustainabilityrepor.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>4
<FILENAME>strl-20250320.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
Document 4 - file: strl-20250320.xsd

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>5
<FILENAME>strl-20250320_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
Document 5 - file: strl-20250320_lab.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>6
<FILENAME>strl-20250320_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
Document 6 - file: strl-20250320_pre.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>a2025sustainabilityrepor001.jpg
<DESCRIPTION>PAGE 1
<TEXT>
Document 7 - file: a2025sustainabilityrepor001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>a2025sustainabilityrepor002.jpg
<DESCRIPTION>PAGE 2
<TEXT>
Document 8 - file: a2025sustainabilityrepor002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>a2025sustainabilityrepor003.jpg
<DESCRIPTION>PAGE 3
<TEXT>
Document 9 - file: a2025sustainabilityrepor003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>a2025sustainabilityrepor004.jpg
<DESCRIPTION>PAGE 4
<TEXT>
Document 10 - file: a2025sustainabilityrepor004.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>a2025sustainabilityrepor005.jpg
<DESCRIPTION>PAGE 5
<TEXT>
Document 11 - file: a2025sustainabilityrepor005.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>a2025sustainabilityrepor006.jpg
<DESCRIPTION>PAGE 6
<TEXT>
Document 12 - file: a2025sustainabilityrepor006.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>a2025sustainabilityrepor007.jpg
<DESCRIPTION>PAGE 7
<TEXT>
Document 13 - file: a2025sustainabilityrepor007.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>a2025sustainabilityrepor008.jpg
<DESCRIPTION>PAGE 8
<TEXT>
Document 14 - file: a2025sustainabilityrepor008.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>a2025sustainabilityrepor009.jpg
<DESCRIPTION>PAGE 9
<TEXT>
Document 15 - file: a2025sustainabilityrepor009.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>a2025sustainabilityrepor010.jpg
<DESCRIPTION>PAGE 10
<TEXT>
Document 16 - file: a2025sustainabilityrepor010.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>a2025sustainabilityrepor011.jpg
<DESCRIPTION>PAGE 11
<TEXT>
Document 17 - file: a2025sustainabilityrepor011.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>a2025sustainabilityrepor012.jpg
<DESCRIPTION>PAGE 12
<TEXT>
Document 18 - file: a2025sustainabilityrepor012.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>a2025sustainabilityrepor013.jpg
<DESCRIPTION>PAGE 13
<TEXT>
Document 19 - file: a2025sustainabilityrepor013.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>a2025sustainabilityrepor014.jpg
<DESCRIPTION>PAGE 14
<TEXT>
Document 20 - file: a2025sustainabilityrepor014.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>21
<FILENAME>a2025sustainabilityrepor015.jpg
<DESCRIPTION>PAGE 15
<TEXT>
Document 21 - file: a2025sustainabilityrepor015.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>22
<FILENAME>a2025sustainabilityrepor016.jpg
<DESCRIPTION>PAGE 16
<TEXT>
Document 22 - file: a2025sustainabilityrepor016.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>23
<FILENAME>a2025sustainabilityrepor017.jpg
<DESCRIPTION>PAGE 17
<TEXT>
Document 23 - file: a2025sustainabilityrepor017.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>24
<FILENAME>a2025sustainabilityrepor018.jpg
<DESCRIPTION>PAGE 18
<TEXT>
Document 24 - file: a2025sustainabilityrepor018.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>25
<FILENAME>a2025sustainabilityrepor019.jpg
<DESCRIPTION>PAGE 19
<TEXT>
Document 25 - file: a2025sustainabilityrepor019.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>26
<FILENAME>a2025sustainabilityrepor020.jpg
<DESCRIPTION>PAGE 20
<TEXT>
Document 26 - file: a2025sustainabilityrepor020.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>27
<FILENAME>a2025sustainabilityrepor021.jpg
<DESCRIPTION>PAGE 21
<TEXT>
Document 27 - file: a2025sustainabilityrepor021.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>28
<FILENAME>a2025sustainabilityrepor022.jpg
<DESCRIPTION>PAGE 22
<TEXT>
Document 28 - file: a2025sustainabilityrepor022.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>29
<FILENAME>a2025sustainabilityrepor023.jpg
<DESCRIPTION>PAGE 23
<TEXT>
Document 29 - file: a2025sustainabilityrepor023.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>30
<FILENAME>a2025sustainabilityrepor024.jpg
<DESCRIPTION>PAGE 24
<TEXT>
Document 30 - file: a2025sustainabilityrepor024.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>31
<FILENAME>a2025sustainabilityrepor025.jpg
<DESCRIPTION>PAGE 25
<TEXT>
Document 31 - file: a2025sustainabilityrepor025.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>32
<FILENAME>a2025sustainabilityrepor026.jpg
<DESCRIPTION>PAGE 26
<TEXT>
Document 32 - file: a2025sustainabilityrepor026.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>33
<FILENAME>a2025sustainabilityrepor027.jpg
<DESCRIPTION>PAGE 27
<TEXT>
Document 33 - file: a2025sustainabilityrepor027.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>34
<FILENAME>a2025sustainabilityrepor028.jpg
<DESCRIPTION>PAGE 28
<TEXT>
Document 34 - file: a2025sustainabilityrepor028.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>35
<FILENAME>a2025sustainabilityrepor029.jpg
<DESCRIPTION>PAGE 29
<TEXT>
Document 35 - file: a2025sustainabilityrepor029.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>36
<FILENAME>a2025sustainabilityrepor030.jpg
<DESCRIPTION>PAGE 30
<TEXT>
Document 36 - file: a2025sustainabilityrepor030.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>37
<FILENAME>a2025sustainabilityrepor031.jpg
<DESCRIPTION>PAGE 31
<TEXT>
Document 37 - file: a2025sustainabilityrepor031.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>38
<FILENAME>a2025sustainabilityrepor032.jpg
<DESCRIPTION>PAGE 32
<TEXT>
Document 38 - file: a2025sustainabilityrepor032.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>39
<FILENAME>a2025sustainabilityrepor033.jpg
<DESCRIPTION>PAGE 33
<TEXT>
Document 39 - file: a2025sustainabilityrepor033.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>40
<FILENAME>a2025sustainabilityrepor034.jpg
<DESCRIPTION>PAGE 34
<TEXT>
Document 40 - file: a2025sustainabilityrepor034.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>41
<FILENAME>a2025sustainabilityrepor035.jpg
<DESCRIPTION>PAGE 35
<TEXT>
Document 41 - file: a2025sustainabilityrepor035.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>42
<FILENAME>a2025sustainabilityrepor036.jpg
<DESCRIPTION>PAGE 36
<TEXT>
Document 42 - file: a2025sustainabilityrepor036.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>43
<FILENAME>a2025sustainabilityrepor037.jpg
<DESCRIPTION>PAGE 37
<TEXT>
Document 43 - file: a2025sustainabilityrepor037.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>44
<FILENAME>a2025sustainabilityrepor038.jpg
<DESCRIPTION>PAGE 38
<TEXT>
Document 44 - file: a2025sustainabilityrepor038.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>45
<FILENAME>a2025sustainabilityrepor039.jpg
<DESCRIPTION>PAGE 39
<TEXT>
Document 45 - file: a2025sustainabilityrepor039.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>46
<FILENAME>a2025sustainabilityrepor040.jpg
<DESCRIPTION>PAGE 40
<TEXT>
Document 46 - file: a2025sustainabilityrepor040.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>47
<FILENAME>a2025sustainabilityrepor041.jpg
<DESCRIPTION>PAGE 41
<TEXT>
Document 47 - file: a2025sustainabilityrepor041.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>48
<FILENAME>a2025sustainabilityrepor042.jpg
<DESCRIPTION>PAGE 42
<TEXT>
Document 48 - file: a2025sustainabilityrepor042.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>49
<FILENAME>a2025sustainabilityrepor043.jpg
<DESCRIPTION>PAGE 43
<TEXT>
Document 49 - file: a2025sustainabilityrepor043.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>50
<FILENAME>a2025sustainabilityrepor044.jpg
<DESCRIPTION>PAGE 44
<TEXT>
Document 50 - file: a2025sustainabilityrepor044.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>51
<FILENAME>a2025sustainabilityrepor045.jpg
<DESCRIPTION>PAGE 45
<TEXT>
Document 51 - file: a2025sustainabilityrepor045.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>52
<FILENAME>a2025sustainabilityrepor046.jpg
<DESCRIPTION>PAGE 46
<TEXT>
Document 52 - file: a2025sustainabilityrepor046.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>53
<FILENAME>a2025sustainabilityrepor047.jpg
<DESCRIPTION>PAGE 47
<TEXT>
Document 53 - file: a2025sustainabilityrepor047.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>54
<FILENAME>a2025sustainabilityrepor048.jpg
<DESCRIPTION>PAGE 48
<TEXT>
Document 54 - file: a2025sustainabilityrepor048.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>55
<FILENAME>a2025sustainabilityrepor049.jpg
<DESCRIPTION>PAGE 49
<TEXT>
Document 55 - file: a2025sustainabilityrepor049.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>56
<FILENAME>image_0.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 56 - file: image_0.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>57
<FILENAME>strl-20250320_g1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 57 - file: strl-20250320_g1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>59
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 59 - file: R1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>60
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 60 - file: Financial_Report.xlsx

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>61
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 61 - file: Show.js

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>62
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 62 - file: report.css

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>64
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 64 - file: FilingSummary.html

Document 64 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>66
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 66 - file: MetaLinks.json

</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>67
<FILENAME>0000874238-25-000049-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 67 - file: 0000874238-25-000049-xbrl.zip

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>68
<FILENAME>strl-20250320_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 68 - file: strl-20250320_htm.html

Document 68 - RAW XML: strl-20250320_htm.xml

</DOCUMENT>
</SEC-DOCUMENT>