Exhibit 32.1

                           ADDITIONAL CERTIFICATIONS

Pursuant to 18 U.S.C. Section 1350, the undersigned officer of Michael Baker
Corporation (the "Company"), hereby certifies that the Company's Quarterly
Report on Form 10-Q for the quarter ended September 30, 2004 (the "Report")
fully complies with the requirements of Section 13(a) or 15(d), as applicable,
of the Securities Exchange Act of 1934 and that the information contained in the
Report fairly presents, in all material respects, the financial condition and
results of operations of the Company.

 /s/ Donald P. Fusilli, Jr.                    Dated: November 8, 2004
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Donald P. Fusilli, Jr.
President and Chief Executive Officer

Pursuant to 18 U.S.C. Section 1350, the undersigned officer of Michael Baker
Corporation (the "Company"), hereby certifies that the Company's Quarterly
Report on Form 10-Q for the quarter ended September 30, 2004 (the "Report")
fully complies with the requirements of Section 13(a) or 15(d), as applicable,
of the Securities Exchange Act of 1934 and that the information contained in the
Report fairly presents, in all material respects, the financial condition and
results of operations of the Company.

 /s/ William P. Mooney                         Dated: November 8, 2004
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William P. Mooney
Executive Vice President and
 Chief Financial Officer

These additional certifications are being furnished solely pursuant to 18 U.S.C.
Section 1350, and are not being filed as part of the Report or as a separate
disclosure document.