content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <!-- Generated by Workiva -->
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001486776</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001739445</issuerCik>
        <issuerName>Arcosa, Inc.</issuerName>
        <secFileNumber>001-38494</secFileNumber>
        <issuerAddress>
          <com:street1>500 N. Akard St., Suite 400</com:street1>
          <com:city>Dallas</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>75201</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>972-942-6500</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Antonio Carrillo</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Affiliate</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>J.P. Morgan Securities LLC</name>
          <address>
            <com:street1>390 Madison Avenue - 6th Floor</com:street1>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10017</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>49042</noOfUnitsSold>
        <aggregateMarketValue>3825276</aggregateMarketValue>
        <noOfUnitsOutstanding>48761753</noOfUnitsOutstanding>
        <approxSaleDate>08/14/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>05/15/2021</acquiredDate>
        <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>49042</amountOfSecuritiesAcquired>
        <paymentDate>05/15/2021</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>08/14/2023</noticeDate>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Antonio Carrillo</signature>
      </noticeSignature>
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text: 144
  0001486776
  XXXXXXXX
  LIVE
  0001739445
  Arcosa, Inc.
  001-38494
  500 N. Akard St., Suite 400
  Dallas
  TX
  75201
  972-942-6500
  Antonio Carrillo
  Affiliate
  Common
  J.P. Morgan Securities LLC
  390 Madison Avenue - 6th Floor
  New York
  NY
  10017
  49042
  3825276
  48761753
  08/14/2023
  NYSE
  Common
  05/15/2021
  Compensation
  Issuer
  N
  49042
  05/15/2021
  Compensation
  Y
  08/14/2023
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Antonio Carrillo