SECURITIES AND EXCHANGE COMMISSION
                                 WASHINGTON, DC 20549


                                       FORM 8-K

                                    CURRENT REPORT


          PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF
                                         1934



          Date of Report (Date of Earliest Event Reported)  February 20,
                                                            -----------
          1998
          ----


                               AMERICAN ECO CORPORATION
                               ------------------------
                (Exact name of registrant as specified in its charter)



             ONTARIO, CANADA         0-10621                 52-1742490  
            (State or other      (Commission File Number)  (IRS Employer
              jurisdiction of                              Identification
                                                            No.)

                        154 UNIVERSITY AVENUE
                            Toronto, Ontario                     M5H 3Y9
                    ------------------------------          --------------
               (Address of principal executive offices)     (zip code)


               Registrant's telephone number, including area code   -   
          (416) 340-2727  
          ----------------


                                 Not Applicable                          
             ------------------------------------------------------------
            (Former name or former address, if changed since last report)


          ITEM 5.  OTHER EVENTS.

               On February 20, 1998, American Eco Corporation (the
          "Company") and Dominion Bridge Corporation, a Delaware
          corporation ("Dominion Bridge"), entered into a non-binding
          letter of intent (the "Letter of Intent") which provides for (a)
          the purchase of $5.0 million of Dominion Bridge common stock by
          the Company (the "Dominion Bridge Stock Purchase"), (b) a working
          capital loan facility (the "Dominion Bridge Loan Facility") of up
          to $25.0 million to be provided by the Company to Dominion
          Bridge, (c) the engagement of the Company to provide certain
          management services to Dominion Bridge (the "Management
          Arrangement"), and (d) the acquisition by the Company of the
          business and assets of Dominion Bridge (the "Acquisition
          Transaction" and, collectively, the "Transactions").  The
          Dominion Bridge Stock Purchase was completed on February 20, 1998
          and the Company and Dominion Bridge are currently negotiating the
          terms of definitive agreements which are intended to implement
          the other Transactions proposed in the letter of intent.

          Dominion Bridge Stock Purchase

               On February 20, 1998, the Company purchased in a private
          placement 1,923,077 units at a purchase price of $2.60 per unit. 
          Each unit consisted of (a) one share of Dominion Bridge common
          stock (a total of 1,923,077 shares of Dominion Bridge common
          stock); and (b) 1/10 of a Dominion Bridge common stock purchase
          warrant (the "Warrants") (a total of 192,308 shares of Dominion
          Bridge common stock underlying the Warrants).  Each whole Warrant
          entitles the Company to purchase one additional share of Dominion
          Bridge common stock at a purchase price of $3.00 per share
          (subject to customary anti-dilution provisions), exercisable
          through February 20, 2001.  The Company has the right to require
          Dominion Bridge to register the purchased shares of Dominion
          Bridge common stock, as well as the shares of Dominion Bridge
          common stock underlying the Warrants under the Securities Act of
          1933, as amended (the "Securities Act"); provided, however that
                                                   --------  -------
          Dominion Bridge is not required to commence such registration
          process unless and until the Company and Dominion Bridge
          terminate their negotiations (or any definitive agreement) with
          respect to the Acquisition Transaction.

               Immediately following the consummation of the Dominion
          Bridge Stock Purchase, Michael E. McGinnis, the Chairman,
          President and CEO of American Eco, was elected to serve on
          Dominion Bridge's Board of Directors for a term expiring in 1999
          and on the Executive Committee thereof.

          Dominion Bridge Loan Facility

               Upon the execution of definitive agreements with respect to
          the Dominion Bridge Loan Facility, the Company will provide
          Dominion Bridge with a loan facility of up to $25.0 million.  The
          specific amount that may be borrowed by Dominion Bridge pursuant
          to the Dominion Bridge Loan Facility will be determined by the
          Company and the Executive Committee of the Dominion Bridge Board
          of Directors based upon their mutual assessment of the working
          capital requirements of Dominion Bridge; provided, however, that
                                                   --------  -------
          American Eco and Dominion Bridge have agreed that a minimum of
          $10 million will be placed in trust by March 5, 1998 and funded
          under the Dominion Bridge Loan Facility by March 23, 1998.

               Outstanding borrowings under the Dominion Bridge Loan
          Facility will bear interest monthly at the rate of 9% per annum. 
          As security for the loans to be made by the Company, Dominion
          Bridge will grant the Company a pledge and security interest in
          all of its properties and assets, subject only to the prior
          pledge and security interest granted by Dominion Bridge to The
          Bank of New York ("BNY") pursuant to Dominion Bridge's existing
          loan with BNY.  All fees and costs borne by the Company in
          obtaining such funds will be passed-through to Dominion Bridge
          and will be included in, and deducted from, the amounts to be
          borrowed by Dominion Bridge under the Dominion Bridge Loan
          Facility.

               As part of the Dominion Bridge Loan Facility, Dominion
          Bridge will authorize the issuance to the Company of Warrants to
          purchase up to 10% of the outstanding shares of Dominion Bridge
          Common Stock as of the closing date of the Dominion Bridge Loan
          Facility, with the number of Warrants to be issued to be based,
          pro rata, upon the maximum amount of Dominion Bridge's
          outstanding borrowings under the Dominion Bridge Loan Facility
          during the term thereof, less pass-through costs.

               The final terms of the Dominion Bridge Loan Facility are
          subject to the outcome of discussions with BNY and the completion
          of definitive loan documentation.

          Management Arrangement

               Upon the execution of definitive agreements with respect to
          the Management Arrangement, the Company will provide Dominion
          Bridge with management services in connection with its ongoing,
          day-to-day operations.  During the term of the Company's
          engagement, the Company will, subject to the general supervision
          and control of the Executive Committee of the Board of Directors
          of Dominion Bridge, furnish Dominion Bridge with the following
          management services: (i) financing and administrative support
          services, including oversight of collection of accounts
          receivable and payment of accounts payable; (ii) marketing
          administration and support services; (iii) human resources
          management; and (iv) oversight and administration of Dominion
          Bridge's operating units.  In order to facilitate the provision
          of these services, the Chief Executive and Chief Financial
          Officers of the Company will be given responsibilities within
          Dominion Bridge's organization which are customarily performed by
          a corporation's Chief Executive and Chief Financial Officers,
          respectively.

               As compensation for the management services to be rendered
          by the Company to Dominion Bridge, Dominion Bridge will (i) pay
          to the Company a management fee of $100,000 per month, and (ii)
          reimburse the Company for all reasonable out-of-pocket expenses
          and disbursements incurred in rendering such services; provided,
                                                                 --------
          however, that (a) such management fee will be increased to
          -------
          $250,000 if the parties will terminate their discussions (and any
          definitive agreement) with respect to the Acquisition
          Transaction, and (b) such out-of-pocket expenses and
          disbursements will not include the hourly costs of the Company's
          personnel when engaged in performing the management services.

          Acquisition Transaction

               Upon consummation of the Acquisition Transaction, a wholly-
          owned subsidiary of the Company and Dominion Bridge will enter
          into a merger or other mutually acceptable transaction providing
          for the acquisition by the Company of the business and assets of
          Dominion Bridge.  As consideration for the Acquisition
          Transaction, the Company will issue to the stockholders of
          Dominion Bridge 7-1/2% convertible subordinated notes (the
          "Convertible Notes") in the principal amount of $3.00 for each
          outstanding share of Dominion Bridge common stock as of the
          closing of the Acquisition Transaction, payable three years after
          the closing date of the Acquisition Transaction.

               The Convertible Notes will, at the option of the holder, be
          convertible into American Eco Common Shares at a conversion rate
          of $15.00 per share, subject to standard anti-dilution
          provisions, as follows: (i) commencing 180 days following the
          issuance date, one-third of each holder's Convertible Notes will
          be convertible, (ii) commencing 360 days following the issuance
          date, two-thirds of each holder's Convertible Notes will be
          convertible, and (iii) commencing 540 days following the issuance
          date, all of the Convertible Notes will be convertible.  The
          Company will have the right to force conversion at a rate of
          $15.00 per share of American Eco Common Shares if the average
          closing price of American Eco Common Shares on the Nasdaq
          National Market will equal or exceed $16.00 per share for any
          twenty consecutive-day trading period, and the Convertible Notes
          are in good standing and not in arrears.

               Both the Convertible Notes and the underlying shares of
          American Eco Common Shares will be registered under the
          Securities Act and will be listed on the Nasdaq National Market
          or such national securities exchange or market system as such
          shares are then listed or traded, prior to the closing of the
          Acquisition Transaction.    

               In connection with the Acquisition Transaction, Michel L.
          Marengere, the Chairman of the Board and Chief Executive Officer
          of Dominion Bridge, Nicolas Matossian, the President and Chief
          Operating Officer of Dominion Bridge, and Rene Amyot, a director
          of Dominion Bridge, will enter into employment, consulting and
          non-compete agreements which will provide for the retention of
          their services and the payment of certain commissions and signing
          bonuses upon consummation of the Acquisition Transaction and for
          a period of three years thereafter, subject to certain
          termination rights after six months as to Mr. Marengere.  These
          agreements will replace the severance agreements which are
          currently in effect for Messrs. Marengere and Matossian.

               The consummation of the Acquisition Transaction will be
          subject, among other things, to the approval of the acquisition
          by the Board of Directors and shareholders of Dominion Bridge and
          the receipt of all consents, approvals, clearances and other
          authorizations necessary to consummate the acquisition, including
          (i) compliance with the Hart-Scott-Rodino Antitrust Improvements
          Act and the Australian Corporations Law; (ii) the consent of the
          Province of Quebec Finance Administration; and (iii) clearance by
          the U.S. Securities and Exchange Commission and any required
          Canadian authorities of definitive proxy material for the
          Dominion Bridge stockholders meeting and of the registration
          statement for the Convertible Notes (including receipt of any
          required valuation or fairness opinion); and (iv) the consent of
          the respective lenders of the Company and Dominion Bridge.

               Dominion Bridge currently owns 63% of the outstanding
          capital stock of McConnell Dowell Corporation Limited, an
          Australian corporation ("MDC").  Under the Australian
          Corporations law, American Eco's proposed acquisition of Dominion
          Bridge will be deemed to be an indirect downstream acquisition of
          MDC, subject to the requirements of the Australian takeover law. 
          The Company has applied to the Australian Securities Commission
          for relief from the requirements of the Australian Corporations
          Law.  Because the shares of MDC constitute a substantial part of
          the assets of Dominion Bridge, the relief granted by the
          Australian Securities Commission may be conditioned upon American
          Eco making an offer for the shares of MDC which it does not
          already own within a prescribed period after the completion of
          its acquisition of Dominion Bridge.

               The Letter of Intent provides that until April 6, 1998
          (subject to the execution of definitive agreements for the
          Dominion Bridge Loan Facility and the Management Arrangement by
          March 23, 1998), Dominion Bridge will deal exclusively with
          American Eco with respect to the sale of the business and assets
          of Dominion Bridge.  If Dominion Bridge fails to honor this
          exclusivity arrangement, American Eco may, under certain
          circumstances, be entitled to receive a fee of US $3.5 million.

               The specific terms of the Acquisition Transaction between
          Dominion Bridge and the Company will be included in a mutually
          acceptable acquisition agreement which will contain the
          provisions outlined above and such other terms, conditions and
          provisions customary for such a transaction.

          Effect of Letter of Intent

               The Letter of Intent provides that the parties will commence
          the negotiation of definitive agreements with respect to the
          Transactions immediately, with a view to their execution as soon
          as practicable, provided that if (a) any of the events set forth
          in the time schedule attached to the letter of intent are not
          completed by the deadlines provided for therein, (b) definitive
          agreements with respect to the Loan Transaction and the
          Management Arrangement are not executed on or prior to March 23,
          1998, or (c) a definitive agreement with respect to the
          Acquisition Transaction is not executed on or prior to April 6,
          1998, or, in each case, by such later date or dates as shall be
          mutually agreed to by the parties, the respective obligations of
          the parties will terminate and the letter of intent will be of no
          further force or effect, except with respect to certain specific
          matters set forth therein.

               The foregoing is a summary of the Transactions provided for
          in the Letter of Intent.  For more complete information,
          reference is made to the exhibits hereto which include the Letter
          of Intent, the Securities Purchase Agreement, the Warrant
          Agreement and the Registration Rights Agreement.

          ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS

           (C)  EXHIBITS.

           Exhibit
           Number   Description of Document
           -------  -----------------------
           10.1     Letter of Intent, dated February 20, 1998,
                    between American Eco Corporation and
                    Dominion Bridge Corporation.

           10.2     Securities Purchase Agreement, dated as of
                    February 20, 1998, between American Eco
                    Corporation and Dominion Bridge Corporation.

           10.3     Warrant Agreement, dated February 20, 1998,
                    issued by Dominion Bridge Corporation.

           10.4     Registration Rights Agreement, dated as of
                    February 20, 1998, between American Eco
                    Corporation and Dominion Bridge Corporation.

           99.1     Press Release, dated February 26, 1998.

                                      SIGNATURES

               Pursuant to the requirements of the Securities Exchange Act
          of 1934, the Registrant has duly caused this report to be signed
          on its behalf by the undersigned hereunto duly authorized.


          Date: February 27, 1998





                                   AMERICAN ECO CORPORATION




                                   By: /s/ Michael E. McGinnis           
                                      -----------------------------------
                                      Name: Michael E. McGinnis
                                      Title: Chairman, President and CEO