    <SEC-DOCUMENT>0000874238-18-000060-index.html : 20180509
    <SEC-HEADER>0000874238-18-000060.hdr.sgml : 20180509
    <ACCEPTANCE-DATETIME>20180509164622
    ACCESSION NUMBER:		0000874238-18-000060
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		7
    CONFORMED PERIOD OF REPORT:	20180508
    ITEM INFORMATION:		Results of Operations and Financial Condition
    FILED AS OF DATE:		20180509
    DATE AS OF CHANGE:		20180509

    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:		18819000

    	BUSINESS ADDRESS:
    		STREET 1:		2751 CENTERVILLE RD.
    		STREET 2:		SUITE 3131
    		CITY:			WILMINGTON
    		STATE:			DE
    		ZIP:			19803
    		BUSINESS PHONE:		3024789170

    	MAIL ADDRESS:
    		STREET 1:		20810 FERNBUSH LANE
    		CITY:			HOUSTON
    		STATE:			TX
    		ZIP:			77073

    	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_033118x8kxearningscal.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: strl_033118x8kxearningscal.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>strl1q18transcript050820.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: strl1q18transcript050820.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>strl1q18transcript050820001.jpg
    <TEXT>
    Document 3 - file: strl1q18transcript050820001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>strl1q18transcript050820002.jpg
    <TEXT>
    Document 4 - file: strl1q18transcript050820002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>strl1q18transcript050820003.jpg
    <TEXT>
    Document 5 - file: strl1q18transcript050820003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>strl1q18transcript050820004.jpg
    <TEXT>
    Document 6 - file: strl1q18transcript050820004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>strl1q18transcript050820005.jpg
    <TEXT>
    Document 7 - file: strl1q18transcript050820005.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>