<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2018-12-07</periodOfReport>

    <dateOfOriginalSubmission>2018-12-11</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0000924719</issuerCik>
        <issuerName>SMITH MIDLAND CORP</issuerName>
        <issuerTradingSymbol>SMID</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001274098</rptOwnerCik>
            <rptOwnerName>SMITH ASHLEY B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O SMITH MIDLAND CORP</rptOwnerStreet1>
            <rptOwnerStreet2>5119 CATLETT ROAD</rptOwnerStreet2>
            <rptOwnerCity>MIDLAND</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>22728</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-12-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1275</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>7.69</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>173042</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <remarks>This Form 4/A is being filed solely to correct the Form 4 filed on September 2, 2026 (the &quot;September 2 Form 4&quot;),
which was inadvertently filed as a duplicate of a Form 4 originally filed on December 11, 2018. The transaction
reported in the September 2 Form 4 occurred in 2018 and was previously reported on the Form 4 filed on
December 11, 2018. The September 2 Form 4 did not report any transaction occurring on or about September 2,
2026 and did not reflect any current trading activity by the Reporting Person.</remarks>

    <ownerSignature>
        <signatureName>/s/ Ashley B. Smith</signatureName>
        <signatureDate>2026-09-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
