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      <link:roleType roleURI="http://www.macquarie.com/role/OrganizationAndDescriptionOfBusinessDetails" id="mic-oadobd" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>40101 - Disclosure - Organization and Description of Business (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:labelLink</link:usedOn>
        <link:usedOn>link:referenceLink</link:usedOn>
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        <link:definition>105 - Disclosure - Property, Equipment, Land and Leasehold Improvements</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:labelLink</link:usedOn>
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        <link:definition>40502 - Disclosure - Property, Equipment, Land and Leasehold Improvements (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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        <link:definition>40501 - Disclosure - Property, Equipment, Land and Leasehold Improvements (Schedule of Property and Equipment) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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      <link:roleType roleURI="http://www.macquarie.com/role/PropertyEquipmentLandAndLeaseholdImprovementsTables" id="mic-pelalit" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>305 - Disclosure - Property, Equipment, Land and Leasehold Improvements (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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        <link:definition>111 - Disclosure - Related Party Transactions</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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      <link:roleType roleURI="http://www.macquarie.com/role/RelatedPartyTransactionsNarrativeDetails" id="mic-rptnd" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>41101 - Disclosure - Related Party Transactions (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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      </link:roleType>
      <link:roleType roleURI="http://www.macquarie.com/role/RelatedPartyTransactionsScheduleOfBaseManagementFeesAndPerformanceFeesDetails" id="mic-rptsobmfapfd" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>41103 - Disclosure - Related Party Transactions (Schedule of Base Management Fees and Performance Fees) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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      <link:roleType roleURI="http://www.macquarie.com/role/RelatedPartyTransactionsScheduleOfDividendsDetails" id="mic-rptsodd" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>41102 - Disclosure - Related Party Transactions (Schedule of Dividends) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:labelLink</link:usedOn>
        <link:usedOn>link:referenceLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.macquarie.com/role/RelatedPartyTransactionsTables" id="mic-rptt" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>311 - Disclosure - Related Party Transactions (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:labelLink</link:usedOn>
        <link:usedOn>link:referenceLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.macquarie.com/role/ReportableSegments" id="mic-rs" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>110 - Disclosure - Reportable Segments</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:labelLink</link:usedOn>
        <link:usedOn>link:referenceLink</link:usedOn>
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      <link:roleType roleURI="http://www.macquarie.com/role/ReportableSegmentsNarrativeDetails" id="mic-rsnd" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>41001 - Disclosure - Reportable Segments (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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      <link:roleType roleURI="http://www.macquarie.com/role/ReportableSegmentsScheduleOfAssetsOfReportableSegmentsDetails" id="mic-rssoaorsd" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>41007 - Disclosure - Reportable Segments (Schedule of Assets of Reportable Segments) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:labelLink</link:usedOn>
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      </link:roleType>
      <link:roleType roleURI="http://www.macquarie.com/role/ReportableSegmentsScheduleOfCapitalExpendituresDetails" id="mic-rssoced" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>41006 - Disclosure - Reportable Segments (Schedule of Capital Expenditures) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:labelLink</link:usedOn>
        <link:usedOn>link:referenceLink</link:usedOn>
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      <link:roleType roleURI="http://www.macquarie.com/role/ReportableSegmentsScheduleOfEbitdaForReportableSegmentsDetails" id="mic-rssoefrsd" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>41004 - Disclosure - Reportable Segments (Schedule of EBITDA for Reportable Segments) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:labelLink</link:usedOn>
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      </link:roleType>
      <link:roleType roleURI="http://www.macquarie.com/role/ReportableSegmentsScheduleOfRevenueFromExternalCustomersDetails" id="mic-rssorfecd" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>41003 - Disclosure - Reportable Segments (Schedule of Revenue From External Customers) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:labelLink</link:usedOn>
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      </link:roleType>
      <link:roleType roleURI="http://www.macquarie.com/role/ReportableSegmentsScheduleOfReconciliationOfAssetsOfReportableSegmentsDetails" id="mic-rssoroaorsd" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>41008 - Disclosure - Reportable Segments (Schedule of Reconciliation of Assets of Reportable Segments) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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      </link:roleType>
      <link:roleType roleURI="http://www.macquarie.com/role/ReportableSegmentsScheduleOfReconciliationOfEbitdaForReportableSegmentsDetails" id="mic-rssoroefrsd" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>41005 - Disclosure - Reportable Segments (Schedule of Reconciliation of EBITDA for Reportable Segments) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:labelLink</link:usedOn>
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      </link:roleType>
      <link:roleType roleURI="http://www.macquarie.com/role/ReportableSegmentsScheduleOfSegmentInformationDetails" id="mic-rssosid" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>41002 - Disclosure - Reportable Segments (Schedule of Segment Information) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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      </link:roleType>
      <link:roleType roleURI="http://www.macquarie.com/role/ReportableSegmentsTables" id="mic-rst" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>310 - Disclosure - Reportable Segments (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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      <link:roleType roleURI="http://www.macquarie.com/role/SubsequentEvents" id="mic-se" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>114 - Disclosure - Subsequent Events</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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      </link:roleType>
      <link:roleType roleURI="http://www.macquarie.com/role/SubsequentEventsNarrativeDetails" id="mic-send" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>41401 - Disclosure - Subsequent Events (Narrative) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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      </link:roleType>
      <link:roleType roleURI="http://www.macquarie.com/role/SubsequentEventsScheduleOfProFormaResultsDetails" id="mic-sesopfrd" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>41402 - Disclosure - Subsequent Events (Schedule of Pro Forma Results) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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      <link:roleType roleURI="http://www.macquarie.com/role/SubsequentEventsTables" id="mic-set" xmlns:link="http://www.xbrl.org/2003/linkbase">
        <link:definition>314 - Disclosure - Subsequent Events (Tables)</link:definition>
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        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
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  <xsd:element name="EarningsBeforeInterestTaxesDepreciationAndAmortizationExcludingNonCashItems" id="mic_EarningsBeforeInterestTaxesDepreciationAndAmortizationExcludingNonCashItems" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="EasementsGross" id="mic_EasementsGross" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="EquipmentLeaseReceivableCurrent" id="mic_EquipmentLeaseReceivableCurrent" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="EquipmentLeaseReceivableNet" id="mic_EquipmentLeaseReceivableNet" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="EquipmentLeaseReceivableNoncurrent" id="mic_EquipmentLeaseReceivableNoncurrent" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="EquityBridgeLoanMember" id="mic_EquityBridgeLoanMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="EquityIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction" id="mic_EquityIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="EquityOfferingMember" id="mic_EquityOfferingMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="ExergyIdahoHoldingsMember" id="mic_ExergyIdahoHoldingsMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="FeesToManagerRelatedParty" id="mic_FeesToManagerRelatedParty" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="FinanceEquipmentLease" id="mic_FinanceEquipmentLease" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="FinancingEquipmentLeaseIncomeNet" id="mic_FinancingEquipmentLeaseIncomeNet" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="FiniteAndIndefiniteLivedTradeNamesGross" id="mic_FiniteAndIndefiniteLivedTradeNamesGross" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="GalaxyAndBocaAviationAcquisitionsMember" id="mic_GalaxyAndBocaAviationAcquisitionsMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="GasProductionAndDistributionBusinessMember" id="mic_GasProductionAndDistributionBusinessMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="HawaiiGasBusinessMember" id="mic_HawaiiGasBusinessMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="IncomeTaxesLineItems" id="mic_IncomeTaxesLineItems" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType" />
  <xsd:element name="IncomeTaxesTable" id="mic_IncomeTaxesTable" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" />
  <xsd:element name="IncreaseDecreaseInDeferredRent" id="mic_IncreaseDecreaseInDeferredRent" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="IncreaseDecreaseInDueToManagerRelatedParty" id="mic_IncreaseDecreaseInDueToManagerRelatedParty" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="IncrementalTermLoanMember" id="mic_IncrementalTermLoanMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="InternationalMatexTankTerminalsMember" id="mic_InternationalMatexTankTerminalsMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="InvestmentProjectEstimatedLifeTerm" id="mic_InvestmentProjectEstimatedLifeTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType" />
  <xsd:element name="IssuanceOfLLCInterestsToIndependentDirectors" id="mic_IssuanceOfLLCInterestsToIndependentDirectors" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="IssuanceOfLLCInterestsToManagerForBaseManagementFees" id="mic_IssuanceOfLLCInterestsToManagerForBaseManagementFees" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="IssuanceOfLlcInterestsToManagerForPerformanceFees" id="mic_IssuanceOfLlcInterestsToManagerForPerformanceFees" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="KansasCityMember" id="mic_KansasCityMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="MacquarieBankLimitedMember" id="mic_MacquarieBankLimitedMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="MacquarieInfrastructureManagementIncorporatedMember" id="mic_MacquarieInfrastructureManagementIncorporatedMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="MihiLlcMember" id="mic_MihiLlcMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="NoncashGainLossOnDispositionOfAssets" id="mic_NoncashGainLossOnDispositionOfAssets" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="NumberOfAirports" id="mic_NumberOfAirports" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType" />
  <xsd:element name="NumberOfLlcInterestsHeldByManagerRelatedParty" id="mic_NumberOfLlcInterestsHeldByManagerRelatedParty" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" />
  <xsd:element name="NumberOfLlcInterestsIssuedToManagerForBaseManagementPerformanceFees" id="mic_NumberOfLlcInterestsIssuedToManagerForBaseManagementPerformanceFees" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" />
  <xsd:element name="NumberOfLlcInterestsIssuedToManagerForSubsequentBaseManagementAndPerformanceFees" id="mic_NumberOfLlcInterestsIssuedToManagerForSubsequentBaseManagementAndPerformanceFees" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" />
  <xsd:element name="NumberOfMarineTerminals" id="mic_NumberOfMarineTerminals" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType" />
  <xsd:element name="NumberOfOperatingBusinesses" id="mic_NumberOfOperatingBusinesses" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType" />
  <xsd:element name="NumberOfSolarProjects" id="mic_NumberOfSolarProjects" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType" />
  <xsd:element name="NumberOfWindPowerGenerationFacilities" id="mic_NumberOfWindPowerGenerationFacilities" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType" />
  <xsd:element name="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" id="mic_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType" />
  <xsd:element name="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" id="mic_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" />
  <xsd:element name="PercentageOfIncomeLossAllocatedToCoinvestor" id="mic_PercentageOfIncomeLossAllocatedToCoinvestor" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="num:percentItemType" />
  <xsd:element name="PercentageOfIncomeLossFlipped" id="mic_PercentageOfIncomeLossFlipped" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="num:percentItemType" />
  <xsd:element name="PercentageOfOutstandingDebtHedged" id="mic_PercentageOfOutstandingDebtHedged" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="num:percentItemType" />
  <xsd:element name="PerformanceFeesSettledInLlcInterests" id="mic_PerformanceFeesSettledInLlcInterests" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="PerformanceFeeToManagerRelatedPartySettledInLlcInterest" id="mic_PerformanceFeeToManagerRelatedPartySettledInLlcInterest" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="ProceedsFromInvestmentDividendsOrDistributionsReturnOfCapital" id="mic_ProceedsFromInvestmentDividendsOrDistributionsReturnOfCapital" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="PropertyPlantEquipmentGoodwillAndTotalAssetsReportableSegmentTableTextBlock" id="mic_PropertyPlantEquipmentGoodwillAndTotalAssetsReportableSegmentTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" />
  <xsd:element name="RamonaMember" id="mic_RamonaMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="ReportableSegmentOneMember" id="mic_ReportableSegmentOneMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="RestrictedStockUnitGrantsFebruaryTwentyOneTwentyThirteenMember" id="mic_RestrictedStockUnitGrantsFebruaryTwentyOneTwentyThirteenMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="RestrictedStockUnitGrantsMayThirtyOneTwentyTwelveMember" id="mic_RestrictedStockUnitGrantsMayThirtyOneTwentyTwelveMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="RestrictedStockUnitGrantsMayTwentyOneTwentyFourteenMember" id="mic_RestrictedStockUnitGrantsMayTwentyOneTwentyFourteenMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="RestrictedStockUnitGrantsMayTwentyTwentyThirteenMember" id="mic_RestrictedStockUnitGrantsMayTwentyTwentyThirteenMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="SalesRevenueUtilityNet" id="mic_SalesRevenueUtilityNet" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="SegmentInformationBySecondarySegmentDomain" id="mic_SegmentInformationBySecondarySegmentDomain" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="SegmentReportingAssets" id="mic_SegmentReportingAssets" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="SegmentReportingInformationBySecondarySegmentAxis" id="mic_SegmentReportingInformationBySecondarySegmentAxis" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" />
  <xsd:element name="SharesActivityLineItems" id="mic_SharesActivityLineItems" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType" />
  <xsd:element name="SolarPowerGenerationBusinessMember" id="mic_SolarPowerGenerationBusinessMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="TermLoanInterestRateFloor" id="mic_TermLoanInterestRateFloor" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:percentItemType" />
  <xsd:element name="TotalAssetsCorporateAndOther" id="mic_TotalAssetsCorporateAndOther" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="TotalDistributionDeclaredToAllShareholdersFromEquityMethodInvestment" id="mic_TotalDistributionDeclaredToAllShareholdersFromEquityMethodInvestment" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="TotalDistributionDeclaredToEachInvestorFromEquityMethodInvestment" id="mic_TotalDistributionDeclaredToEachInvestorFromEquityMethodInvestment" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="TotalMembersAccumulatedOtherComprehensiveLossNetOfTaxesMember" id="mic_TotalMembersAccumulatedOtherComprehensiveLossNetOfTaxesMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="TotalReportableSegmentsMember" id="mic_TotalReportableSegmentsMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="TotalRevenueFromProductSalesNet" id="mic_TotalRevenueFromProductSalesNet" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="TotalTermDebtMember" id="mic_TotalTermDebtMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="UnhedgedDebt" id="mic_UnhedgedDebt" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element name="ValleyCenterMember" id="mic_ValleyCenterMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
  <xsd:element name="WindPowerGenerationBusinessMember" id="mic_WindPowerGenerationBusinessMember" nillable="true" abstract="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType" />
</xsd:schema>


