    <SEC-DOCUMENT>0000067215-19-000025-index.html : 20190828
    <SEC-HEADER>0000067215-19-000025.hdr.sgml : 20190828
    <ACCEPTANCE-DATETIME>20190828060849
    ACCESSION NUMBER:		0000067215-19-000025
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		21
    CONFORMED PERIOD OF REPORT:	20190828
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20190828
    DATE AS OF CHANGE:		20190828

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			DYCOM INDUSTRIES INC
    		CENTRAL INDEX KEY:			0000067215
    		STANDARD INDUSTRIAL CLASSIFICATION:	WATER, SEWER, PIPELINE, COMM AND POWER LINE CONSTRUCTION [1623]
    		IRS NUMBER:				591277135
    		STATE OF INCORPORATION:			FL
    		FISCAL YEAR END:			0125

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-10613
    		FILM NUMBER:		191059093

    	BUSINESS ADDRESS:
    		STREET 1:		11780 U.S. HIGHWAY 1
    		STREET 2:		SUITE 600
    		CITY:			PALM BEACH GARDENS
    		STATE:			FL
    		ZIP:			33408
    		BUSINESS PHONE:		561-627-7171

    	MAIL ADDRESS:
    		STREET 1:		11780 U.S. HIGHWAY 1
    		STREET 2:		SUITE 600
    		CITY:			PALM BEACH GARDENS
    		STATE:			FL
    		ZIP:			33408

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	MOBILE HOME DYNAMICS INC
    		DATE OF NAME CHANGE:	19820302
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>dyfy2020q28k-earningsrelea.htm
    <DESCRIPTION>8-K
    <TEXT>
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    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>dyfy2020q2earningsreleasee.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: dyfy2020q2earningsreleasee.htm

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    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>q22020resultspresentatio.htm
    <DESCRIPTION>EXHIBIT 99.2
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    Document 3 - file: q22020resultspresentatio.htm

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    <DOCUMENT>
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    <SEQUENCE>4
    <FILENAME>dyfy2020q2non-gaapreconcil.htm
    <DESCRIPTION>EXHIBIT 99.3
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    <SEQUENCE>5
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    <SEQUENCE>6
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    <TEXT>
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