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                          UNITED STATES
               SECURITIES AND EXCHANGE COMMISSION
                     Washington, D.C. 20549

                           FORM 10-K/A
                         Amendment No. 1

      [X]  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                 THE SECURITIES EXCHANGE ACT OF 1934

           For the fiscal year ended December 31, 1999

                               OR

    [ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF
               THE SECURITIES EXCHANGE ACT OF 1934

                For the transition period from_______ to_______

                Commission file number 0-9722

                     INTERGRAPH CORPORATION
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     (Exact name of registrant as specified in its charter)

               Delaware                    63-0573222
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    (State or other jurisdiction of    (I.R.S. Employer
    incorporation or organization)     Identification No.)


        Intergraph Corporation
         Huntsville, Alabama               35894-0001
      --------------------------       ------------------
        (Address of principal              (Zip Code)
         executive offices)

  Registrant's telephone number, including area code:  (256) 730-2000
                                                       --------------

  Securities registered pursuant to Section 12(b) of the Act:  None

  Securities registered pursuant to Section 12(g) of the Act:

             Common Stock, par value $0.10 per share
             ---------------------------------------
                        (Title of Class)

   Indicate by check mark whether the registrant (1) has filed all
reports  required  to be filed by Section  13  or  15(d)  of  the
Securities  Exchange Act of 1934 during the preceding  12  months
(or  for such shorter period that the registrant was required  to
file  such  reports),  and (2) has been subject  to  such  filing
requirements for the past 90 days. Yes  X   No

   Indicate  by  check  mark if disclosure of  delinquent  filers
pursuant  to Item 405 of Regulation S-K is not contained  herein,
and will not be contained, to the best of registrant's knowledge,
in  definitive  proxy or information statements  incorporated  by
reference in Part III of this Form 10-K or any amendment to  this
Form 10-K.  (  )

   As  of  January  31,  2000, there were  49,252,406  shares  of
Intergraph  Corporation Common Stock $0.10 par value outstanding.
The   aggregate  market  value  of  the  voting  stock  held   by
nonaffiliates  of  the registrant was approximately  $252,402,000
based on the closing sale price of such stock as reported by  The
Nasdaq Stock Market on January 31, 2000, assuming that all shares
beneficially  held  by  executive officers  and  members  of  the
registrant's Board of Directors are shares owned by "affiliates,"
a  status  which  each  of the executive officers  and  directors
individually disclaims.

               DOCUMENTS INCORPORATED BY REFERENCE

    Documents                                      Form 10-K Reference
    ---------                                      -------------------

    Portions of the Annual Report to             Part I, Part II, Part IV
       Shareholders for the year ended
       December 31, 1999

    Portions of the Proxy Statement for                  Part III
       the May 18, 2000 Annual Meeting
       of Shareholders
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This  amendment  on  Form 10-K/A is being filed  solely  for  the
purpose  of  adding a typed signature to Exhibit 23 - Consent  of
Independent  Auditors.  This signature was inadvertently  omitted
during  the  EDGAR  conversion process of  the  Company's  Annual
Report  on Form 10-K for the year ended December 31, 1999,  which
was  filed with the Securities and Exchange Commission  on  March
22, 2000.



                            SIGNATURE


   Pursuant to the requirements of the Securities Exchange Act of
1934,  the registrant has duly caused this amendment to be signed
on its behalf by the undersigned, thereunto duly authorized.


                     INTERGRAPH CORPORATION

                    By /s/  John W. Wilhoite       Date:  April 14, 2000
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                         John W. Wilhoite
                   Executive Vice President and
                      Chief Financial Officer
              (Principal Financial and Accounting Officer)