-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 GBEQJ70S7ROtEc5RSURnGC/Xvc8EWldrTrnou8nBOUri0UptckyU9pWZVf3KuEdQ
 S9c6dHugux2Ga7J5w4kCBA==

<SEC-DOCUMENT>0001209191-05-022245.txt : 20050426
<SEC-HEADER>0001209191-05-022245.hdr.sgml : 20050426
<ACCEPTANCE-DATETIME>20050426165008
ACCESSION NUMBER:		0001209191-05-022245
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050421
FILED AS OF DATE:		20050426
DATE AS OF CHANGE:		20050426

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BAKER MICHAEL CORP
		CENTRAL INDEX KEY:			0000009263
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MANAGEMENT SERVICES [8741]
		IRS NUMBER:				250927646
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		AIRPORT OFFICE PARK BLDG 3
		STREET 2:		420 ROUSER RD
		CITY:			CORAOPOLIS
		STATE:			PA
		ZIP:			15108
		BUSINESS PHONE:		4122696300

	MAIL ADDRESS:	
		STREET 1:		P O BOX 12259
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15231-0259

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EUTHENICS SYSTEMS CORP
		DATE OF NAME CHANGE:	19750527

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BAKER MICHAEL JR INC
		DATE OF NAME CHANGE:	19720526

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Doyle Rex P
		CENTRAL INDEX KEY:			0001320759

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06627
		FILM NUMBER:		05773689

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		(412) 269-2539

	MAIL ADDRESS:	
		STREET 1:		100 AIRSIDE DRIVE
		CITY:			MOON TOWNSHIP
		STATE:			PA
		ZIP:			15108
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>bpi13498_bpi2rpd.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2005-04-21</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000009263</issuerCik>
        <issuerName>BAKER MICHAEL CORP</issuerName>
        <issuerTradingSymbol>BKR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001320759</rptOwnerCik>
            <rptOwnerName>Doyle Rex P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>100 AIRSIDE DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MOON TOWNSHIP</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>15108</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Senior Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7778.948</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>ESOP Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1281</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <ownerSignature>
        <signatureName>/s/Rex P. Doyle</signatureName>
        <signatureDate>2005-04-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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