    <SEC-DOCUMENT>0000874238-20-000061-index.html : 20200506
    <SEC-HEADER>0000874238-20-000061.hdr.sgml : 20200506
    <ACCEPTANCE-DATETIME>20200506161321
    ACCESSION NUMBER:		0000874238-20-000061
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		9
    CONFORMED PERIOD OF REPORT:	20200505
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20200506
    DATE AS OF CHANGE:		20200506

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			STERLING CONSTRUCTION CO INC
    		CENTRAL INDEX KEY:			0000874238
    		STANDARD INDUSTRIAL CLASSIFICATION:	HEAVY CONSTRUCTION OTHER THAN BUILDING CONST - CONTRACTORS [1600]
    		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:		20852746

    	BUSINESS ADDRESS:
    		STREET 1:		1800 HUGHES LANDING BLVD.
    		STREET 2:		SUITE 250
    		CITY:			THE WOODLANDS
    		STATE:			TX
    		ZIP:			77380
    		BUSINESS PHONE:		281-214-0800

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

    	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>a20200506form8-ktranscript.htm
    <DESCRIPTION>FORM 8-K
    <TEXT>
    Document 1 - file: a20200506form8-ktranscript.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>a20200506ex991.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: a20200506ex991.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>strl1q20transcript5520page1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: strl1q20transcript5520page1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>strl1q20transcript5520page2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: strl1q20transcript5520page2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>strl1q20transcript5520page3.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: strl1q20transcript5520page3.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>strl1q20transcript5520page4.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: strl1q20transcript5520page4.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>strl1q20transcript5520page5.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: strl1q20transcript5520page5.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>strl1q20transcript5520page6.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: strl1q20transcript5520page6.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>strl1q20transcript5520page7.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: strl1q20transcript5520page7.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>