EXHIBIT 99.1

                      CHIEF EXECUTIVE OFFICER CERTIFICATION

         Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, Martin M.
Koffel, the Chief Executive Officer of URS Corporation (the "Company") hereby
certifies that, to the best of his knowledge:

         1.       The Company's Quarterly Report on Form 10-Q for the period
                  ended April 30, 2003, to which this Certification is attached
                  as Exhibit 99.1 (the "Periodic Report") fully complies with
                  the requirements of section 13(a) or section 15(d) of the
                  Securities Exchange Act of 1934, and

         2.       The information contained in the Periodic Report fairly
                  presents, in all material respects, the financial condition
                  and results of operations of the Company.

         IN WITNESS WHEREOF, the undersigned has set his hand hereto as of the
13th day of June, 2003.

                                                      /s/ Martin M. Koffel
                                                      -----------------------
                                                      Martin M. Koffel
                                                      Chief Executive Officer