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 Annual Report
on Form 10-K for the year ended December 31, 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: March 15, 2005
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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 Annual Report
on Form 10-K for the year ended December 31, 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: March 15, 2005
- -------------------------------------
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.


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