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Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0001181431-09-047376.txt : 20091009
<SEC-HEADER>0001181431-09-047376.hdr.sgml : 20091009
<ACCEPTANCE-DATETIME>20091009163141
ACCESSION NUMBER:		0001181431-09-047376
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
ITEM INFORMATION:		Investment Company Act Section 3(c)
ITEM INFORMATION:		Section 3(c)(7)
FILED AS OF DATE:		20091009
DATE AS OF CHANGE:		20091009
EFFECTIVENESS DATE:		20091009

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EMERALD INFRASTRUCTURE DEVELOPMENT FUND L.P.
		CENTRAL INDEX KEY:			0001448054
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			E9

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-123565
		FILM NUMBER:		091114437

	BUSINESS ADDRESS:	
		STREET 1:		EMERALD DEVELOPMENT MANAGERS LLC
		STREET 2:		800 Third Avenue
		CITY:			New York
		STATE:			NY
		ZIP:			10021
		BUSINESS PHONE:		212-317-2258

	MAIL ADDRESS:	
		STREET 1:		EMERALD DEVELOPMENT MANAGERS LLC
		STREET 2:		800 Third Avenue
		CITY:			New York
		STATE:			NY
		ZIP:			10021

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EMERALD INFRASTRUCTURE DEVELOPMENT FUND LP
		DATE OF NAME CHANGE:	20081016
</SEC-HEADER>
<DOCUMENT>
<TYPE>D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0603</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001448054</cik>
        <entityName>EMERALD INFRASTRUCTURE DEVELOPMENT FUND L.P.</entityName>
        <issuerAddress>
            <street1>Emerald Development Managers LP</street1>
            <street2>800 Third Avenue</street2>
            <city>New York</city>
            <stateOrCountry>NY</stateOrCountry>
            <zipCode>10021</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>212-317-2258</issuerPhoneNumber>
        <jurisdictionOfInc>CAYMAN ISLANDS</jurisdictionOfInc>
        <issuerPreviousNameList></issuerPreviousNameList>
        <edgarPreviousNameList>
            <previousName>EMERALD INFRASTRUCTURE DEVELOPMENT FUND LP</previousName>
        </edgarPreviousNameList>
        <entityType>Limited Partnership</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2007</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Neil</firstName>
                <middleName>L.</middleName>
                <lastName>Cohen</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Emerald Development Managers LP</street1>
                <street2>800 Third Avenue</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10021</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Member of EID GP LLC, the general partner of EID GP L.P., the general partner of Emerald Infrastructure Development Fund L.P.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Charles</firstName>
                <middleName>T.</middleName>
                <lastName>Collins</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Emerald Development Managers LP</street1>
                <street2>800 Third Avenue</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10021</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Member of EID GP LLC, the general partner of EID GP L.P., the general partner of Emerald Infrastructure Development Fund L.P.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Stephen</firstName>
                <middleName>H</middleName>
                <lastName>Case</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Emerald Development Managers LP</street1>
                <street2>800 Third Avenue</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10021</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Member of EID GP LLC, the general partner of EID GP L.P., the general partner of Emerald Infrastructure Development Fund L.P.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>James</firstName>
                <middleName>E.</middleName>
                <lastName>Wells</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Emerald Development Managers LP</street1>
                <street2>800 Third Avenue</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10021</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Member of EID GP LLC, the general partner of EID GP L.P., the general partner of Emerald Infrastructure Development Fund L.P.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>None</firstName>
                <lastName>EID GP L.P.</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Emerald Development Managers LP</street1>
                <street2>800 Third Avenue</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10021</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Promoter</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Pooled Investment Fund</industryGroupType>
            <investmentFundInfo>
                <investmentFundType>Private Equity Fund</investmentFundType>
                <is40Act>false</is40Act>
            </investmentFundInfo>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
            <item>3C</item>
            <item>3C.7</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>9999999997-08-042941</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2008-09-26</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
            <isPooledInvestmentFundType>true</isPooledInvestmentFundType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>William R. Howell</recipientName>
                <recipientCRDNumber>1677698</recipientCRDNumber>
                <associatedBDName>Shelbourne Securities, LLC</associatedBDName>
                <associatedBDCRDNumber>132972</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>289 Great Road</street1>
                    <city>Acton</city>
                    <stateOrCountry>MA</stateOrCountry>
                    <zipCode>01720</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <value>All States</value>
                </statesOfSolicitationList>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>75000000</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>4</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>1500000</dollarAmount>
                <isEstimate>true</isEstimate>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
                <isEstimate>true</isEstimate>
            </findersFees>
            <clarificationOfResponse>2% commissions are payable to Shelbourne Securities (including William Howell). The Manager is trying to determine if those persons paid or intend to pay any other persons in respect of the offering. This Form may be amended when more facts are available.</clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
                <isEstimate>true</isEstimate>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Emerald Infrastructure Development Fund L.P.</issuerName>
                <signatureName>/s/ Neil L. Cohen</signatureName>
                <nameOfSigner>Neil L. Cohen</nameOfSigner>
                <signatureTitle>Member of the general partner of the general partner</signatureTitle>
                <signatureDate>2009-10-09</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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