<SEC-DOCUMENT>0001249250-17-000005.txt : 20171024
<SEC-HEADER>0001249250-17-000005.hdr.sgml : 20171024
<ACCEPTANCE-DATETIME>20171024170730
ACCESSION NUMBER:		0001249250-17-000005
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20171024
FILED AS OF DATE:		20171024
DATE AS OF CHANGE:		20171024

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ESTES TIMOTHY R
		CENTRAL INDEX KEY:			0001249250

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10613
		FILM NUMBER:		171151500

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

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:			0127

	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>
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    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-10-24</periodOfReport>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001249250</rptOwnerCik>
            <rptOwnerName>ESTES TIMOTHY R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11780 U.S. HIGHWAY 1</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 600</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>Executive VP &amp; COO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
                <value>2017-10-24</value>
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            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>6488</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>238917</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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                <natureOfOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
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            <transactionDate>
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                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>3085</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>84.35</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
                    <value>235832</value>
                </sharesOwnedFollowingTransaction>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
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            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                    <footnoteId id="F3"/>
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                <transactionPricePerShare>
                    <value>0</value>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
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                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                    <value>1760</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>84.35</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
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                <sharesOwnedFollowingTransaction>
                    <value>237773</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
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            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
                <value>2017-10-24</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <transactionShares>
                    <value>3526</value>
                    <footnoteId id="F4"/>
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                    <value>0</value>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
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                <sharesOwnedFollowingTransaction>
                    <value>241299</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
                <value>2017-10-24</value>
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                <transactionFormType>4</transactionFormType>
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                <transactionShares>
                    <value>1677</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>84.35</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>239622</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares of DY common stock acquired upon the settlement of restricted stock units (&quot;RSUs&quot;) that were granted in October 2014 and settled on October 24, 2017. Each RSU represents a contingent right to acquire one share of DY common stock upon the satisfaction of pre-established performance measures set forth in the award documents. The performance measures are based on (i) operating earnings and (ii) the ratio of operating cash flow to net income, in each case before certain items. The shares reported include 2,163 shares that vested in connection with the satisfaction of the performance measures described in the previous sentence over the preceding three year performance period.</footnote>
        <footnote id="F2">No consideration was paid for the shares.</footnote>
        <footnote id="F3">Represents shares of DY common stock acquired upon the settlement of RSUs that were granted in October 2015 and settled on October 24, 2017. Each RSU represents a contingent right to acquire one share of DY common stock upon the satisfaction of pre-established performance measures set forth in the award documents. The performance measures are based on (i) operating earnings and (ii) the ratio of operating cash flow to net income, in each case before certain items. The shares reported include 1,603 shares that vested in connection with the satisfaction of the performance measures described in the previous sentence over the preceding three year performance period.</footnote>
        <footnote id="F4">Represents shares of DY common stock acquired upon the settlement of RSUs that were granted in October 2016 and settled on October 24, 2017. Each RSU represents a contingent right to acquire one share of DY common stock upon the satisfaction of pre-established performance measures set forth in the award documents. The performance measures are based on (i) operating earnings and (ii) the ratio of operating cash flow to net income, in each case before certain items. The shares reported include 1,527 shares that vested in connection with the satisfaction of the performance measures described in the previous sentence over the preceding three year performance period.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Richard B. Vilsoet, Attorney-in-Fact for                     Timothy R. Estes</signatureName>
        <signatureDate>2017-10-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
