    <SEC-DOCUMENT>0000874238-25-000057-index.html : 20250325
    <SEC-HEADER>0000874238-25-000057.hdr.sgml : 20250325
    <ACCEPTANCE-DATETIME>20250325161129
    ACCESSION NUMBER:		0000874238-25-000057
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    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:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-31993
    		FILM NUMBER:		25768405

    	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>DEFA14A
    <SEQUENCE>1
    <FILENAME>a20250325defa14a-proxynoti.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: a20250325defa14a-proxynoti.htm

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

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

    </DOCUMENT>
    </SEC-DOCUMENT>