<SEC-DOCUMENT>0000874238-25-000056-index.html : 20250325
<SEC-HEADER>0000874238-25-000056.hdr.sgml : 20250325
<ACCEPTANCE-DATETIME>20250325160954
ACCESSION NUMBER:		0000874238-25-000056
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		28
CONFORMED PERIOD OF REPORT:	20250508
FILED AS OF DATE:		20250325
DATE AS OF CHANGE:		20250325

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
		EIN:				251655321
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31993
		FILM NUMBER:		25768374

	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>DEF 14A
<SEQUENCE>1
<FILENAME>strl-20250319.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: strl-20250319.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>2
<FILENAME>strl-20250319.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
Document 2 - file: strl-20250319.xsd

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>strl-20250319_g1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: strl-20250319_g1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>strl-20250319_g10.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: strl-20250319_g10.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>strl-20250319_g11.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: strl-20250319_g11.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>strl-20250319_g12.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: strl-20250319_g12.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>strl-20250319_g13.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: strl-20250319_g13.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>strl-20250319_g14.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: strl-20250319_g14.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>strl-20250319_g15.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: strl-20250319_g15.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>strl-20250319_g2.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: strl-20250319_g2.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>strl-20250319_g3.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: strl-20250319_g3.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>strl-20250319_g4.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: strl-20250319_g4.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>strl-20250319_g5.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: strl-20250319_g5.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>strl-20250319_g6.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: strl-20250319_g6.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>strl-20250319_g7.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: strl-20250319_g7.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>strl-20250319_g8.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 16 - file: strl-20250319_g8.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>strl-20250319_g9.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 17 - file: strl-20250319_g9.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>19
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 19 - file: R1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>20
<FILENAME>R2.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 20 - file: R2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>21
<FILENAME>R3.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 21 - file: R3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>22
<FILENAME>R4.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 22 - file: R4.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>23
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 23 - file: Show.js

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>24
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 24 - file: report.css

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>26
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 26 - file: FilingSummary.html

Document 26 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>28
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 28 - file: MetaLinks.json

</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>29
<FILENAME>0000874238-25-000056-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 29 - file: 0000874238-25-000056-xbrl.zip

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>30
<FILENAME>strl-20250319_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 30 - file: strl-20250319_htm.html

Document 30 - RAW XML: strl-20250319_htm.xml

</DOCUMENT>
</SEC-DOCUMENT>