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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 UyhSRz3ihcLxAihaQcgXvWyMbgQsCM7dxAzCP9FVFrSc/azrQlhSF3ESSH6DE4xh
 7v+v87wlWBIUYdabBPaYuA==

<SEC-DOCUMENT>0001328538-05-000003.txt : 20050615
<SEC-HEADER>0001328538-05-000003.hdr.sgml : 20050614
<ACCEPTANCE-DATETIME>20050615172215
ACCESSION NUMBER:		0001328538-05-000003
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050613
FILED AS OF DATE:		20050615
DATE AS OF CHANGE:		20050615

ISSUER:		

	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:			0729

	BUSINESS ADDRESS:	
		STREET 1:		4440 PGA BLVD. STE 500
		STREET 2:		FIRST UNION CENTER
		CITY:			PALM BEACH GARDENS
		STATE:			FL
		ZIP:			33410
		BUSINESS PHONE:		5616277171

	MAIL ADDRESS:	
		STREET 1:		4440 PGA BLVD STE 500
		STREET 2:		FIRST UNION CENTER
		CITY:			PALM BEACH GARDENS
		STATE:			FL
		ZIP:			33410

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MOBILE HOME DYNAMICS INC
		DATE OF NAME CHANGE:	19820302

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Vilsoet Richard B
		CENTRAL INDEX KEY:			0001328538

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10613
		FILM NUMBER:		05898214

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		(561) 627-7171

	MAIL ADDRESS:	
		STREET 1:		4440 PGA BLVD
		STREET 2:		SUITE 500
		CITY:			PALM BEACH GARDENS
		STATE:			FL
		ZIP:			33410
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2005-06-13</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000067215</issuerCik>
        <issuerName>DYCOM INDUSTRIES INC</issuerName>
        <issuerTradingSymbol>DY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001328538</rptOwnerCik>
            <rptOwnerName>Vilsoet Richard B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11770 U.S. HIGHWAY 1</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 101E</rptOwnerStreet2>
            <rptOwnerCity>PALM BEACH GARDENS</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33408</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Corporate Secretary</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Employee Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>24.88</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2005-05-09</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2015-05-09</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>25000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The option vests in four (4) equal, annual installments beginning on May 9, 2005.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Richard B. Vilsoet</signatureName>
        <signatureDate>2005-06-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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