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


                                  SCHEDULE 13D

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934


                                KIRBY CORPORATION
                                (NAME OF ISSUER)

                     COMMON STOCK, PAR VALUE $0.10 PER SHARE
                         (TITLE OF CLASS OF SECURITIES)

                                   497-266-106
                                 (CUSIP Number)



                                   JANE BEATTY
                      ONTARIO TEACHERS' PENSION PLAN BOARD
                          5650 YONGE STREET, 5TH FLOOR
                            TORONTO, ONTARIO, CANADA
                                     M2M 4H5
                                 (416) 730-6178

                                 WITH COPIES TO:
                                KEVIN KEOGH, ESQ.
                                WHITE & CASE LLP
                           1155 AVENUE OF THE AMERICAS
                            NEW YORK, NEW YORK 10036
                                 (212) 819-8200

- --------------------------------------------------------------------------------
            (NAME, ADDRESS AND TELEPHONE NUMBER OF PERSON AUTHORIZED
                     TO RECEIVE NOTICES AND COMMUNICATIONS)


                                NOVEMBER 30, 1999
             (DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT)


If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].



SCHEDULE 13D - --------------------------------- ------------------------------- CUSIP No. 497-266-106 Page 2 of 11 Pages - --------------------------------- ------------------------------- - -------- ----------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON ONTARIO TEACHERS' PENSION PLAN BOARD - -------- ----------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (A)[ ] (B)[ ] - -------- ----------------------------------------------------------------------- 3 SEC USE ONLY - -------- ----------------------------------------------------------------------- 4 SOURCE OF FUNDS OO - -------- ----------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED [ ] PURSUANT TO ITEMS 2(D) OR 2(E) - -------- ----------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION ONTARIO, CANADA - ----------------------------------- ------- ------------------------------------ NUMBER OF SHARES BENEFICIALLY 7 SOLE VOTING POWER OWNED BY EACH REPORTING 2,336,716 PERSON WITH ------- ------------------------------------ 8 SHARED VOTING POWER -0- ------- ------------------------------------ 9 SOLE DISPOSITIVE POWER 2,336,716 ------- ------------------------------------ 10 SHARED DISPOSITIVE POWER -0- - -------- ----------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,336,716 - -------- ----------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES [ ] CERTAIN SHARES - -------- ----------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 9.52% - -------- ----------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON EP - -------- -----------------------------------------------------------------------

ITEM 1. SECURITY AND ISSUER This statement on Schedule 13D relates to the common stock, par value $0.10 per share, (the "Common Stock") of Kirby Corporation (the "Issuer"). The principal executive office of the Issuer is located at 1775 St. James Place, Suite 200, Houston, Texas 77056. ITEM 2. IDENTITY AND BACKGROUND This statement on Schedule 13D is being filed by Ontario Teachers' Pension Plan Board ("OTP"). OTP is sometimes hereinafter referred to as the "Reporting Person." OTP is an Ontario, Canada corporation, the principal business of which is the administration of a pension plan and management of a pension fund for Ontario teachers. The principal office and business address of OTP is 5650 Yonge Street, 5th Floor, Toronto, Ontario M2M 4H5, Canada. The attached Schedule A is a list of executive officers, directors and controlling persons of OTP, which contains the following information with respect to each such person: (i) name; (ii) business address; (iii) present principal occupation or employment and the name, principal business and address of any corporation or other organization in which such employment is conducted; and (iv) citizenship. During the last five years, neither OTP nor, to the best of OTP's knowledge, any person named on Schedule A hereto, has been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or has been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction as a result of which such person was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. Each of the directors, controlling persons and the executive officers of OTP listed on Schedule A, hereto, is a citizen of Canada. ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION The source and amount of the funds used or to be used by the OTP to purchase shares of the Common Stock are as follows: SOURCE OF FUNDS AMOUNT OF FUNDS Pension Fund Assets $43,663,768.70 ITEM 4. PURPOSE OF THE TRANSACTION The Reporting Person acquired the Common Stock as a result of the distribution of the assets of Trinity I Fund, L.P. ("Fund") upon the termination of the Fund and continues to hold the shares of Common Stock reported herein for investment purposes. Consistent with such purposes, the Reporting Person may from time to time have discussions with management and/or the Board of Directors of the Issuer concerning various ways of enhancing long-term shareholder value. Depending on market conditions and other factors that the Reporting Person may deem material to its investment decision, the Reporting Person may purchase additional shares of Common Stock in the open market or in private transactions. Depending on these same factors, the Reporting Person may sell all or a portion of the shares of Common Stock that it now owns or hereafter may acquire on the open market or in private transactions. Except as set forth in the preceding paragraph neither OTP nor, to the best knowledge of OTP, any of the persons set forth on Schedule A, has any current plans or proposals that relate to or would result in (a) the acquisition by any person of additional securities of the Issuer or the disposition of securities of the Issuer; (b) an extraordinary corporate transaction, such as a merger, reorganization or liquidation of the Issuer or any of its subsidiaries; (c) a sale or transfer of a material amount of assets of the Issuer or any of its subsidiaries; (d) any change in the present board of directors or management of the Issuer, including any plans or proposals to change the number or term of directors or to fill any existing vacancies on the board; (e) any material change in the present capitalization or dividend policy of the Issuer; (f) any other material change in the Issuer's business or corporate structure; (g) changes in the Issuer's charter, by-laws or instruments corresponding thereto, or other actions which may impede the acquisition of the control of the Issuer by any Person; (h) any of the Issuer's securities being delisted from a national securities exchange or ceasing to be authorized to be quoted in an inter-dealer quotation system of a registered national securities association; (i) any of the Issuer's equity securities becoming eligible for termination of registration pursuant to Section 12(g)(4) of the Securities Exchange Act of 1934, as amended; or (j) any action similar to any of those enumerated above. ITEM 5. INTEREST IN SECURITIES OF THE ISSUER (a) As of the date of this statement, OTP beneficially owned 2,336,716 shares of Common Stock, which constitutes beneficial ownership of 9.52% of outstanding shares of Common Stock. Based upon publicly available information 24,543,345 shares of the Common Stock were outstanding on November 30, 1999. To the best of the knowledge of the Reporting Person, other than as set forth in Schedule B attached hereto, none of the persons named in Item 2 herein is the beneficial owner of any shares of the Common Stock. (b) OTP has the sole power to vote or direct the vote and to dispose or direct the disposition of 2,336,716 shares of the Common Stock. (c) During the past sixty days, the Reporting Person has not acquired or disposed of beneficial ownership of Common Stock except as set forth in Schedule B attached hereto. (d) Except as described in the succeeding sentence, no person other than the Reporting Person has the right to receive dividends on Common Stock beneficially owned by the Reporting Person described in this Schedule 13D and proceeds from the sale thereof. (e) Not applicable. ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO SECURITIES OF THE ISSUER None ITEM 7. MATERIAL TO BE FILED AS EXHIBITS: None

SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, the undersigned hereby certify that the information set forth in this statement is true, complete and correct. Dated: December 6, 1999 ONTARIO TEACHERS' PENSION PLAN BOARD, an Ontario, Canada corporation By: /s/ Jane Beatty --------------------------------------- Name: Jane Beatty Title: Legal Counsel, Investments

SCHEDULE A The following tables set forth for the directors, controlling persons and executive officers of OTP (i) the name of each such person; (ii) the present principal occupation or employment of each such person; and (iii) the name, principal business and address of any business corporation or other organization in which such occupation or employment is conducted. Each of the following persons is a citizen of Canada. EXECUTIVE OFFICERS, CONTROLLING PERSONS AND DIRECTORS OF OTP NAME RESIDENCE OR BUSINESS ADDRESS PRINCIPAL OCCUPATION OR EMPLOYMENT Claude Lamoureux 5650 Yonge Street President and Chief Executive 5th Floor Officer of OTP Toronto, Ontario M2M 4H5 Ted Medland 121 King Street West Retired Financial Executive (Chairperson) Suite 2525 Toronto, Ontario M5H 3T9 Jalynn Bennett 247 Davenport Rd. President of Jalynn H. Bennett Associates, a (Director) Suite 303 strategic planning consulting firm whose Toronto, Ontario principal business address and office are the M5R 1J9 same as for Ms. Bennett David Lennox 55 Lombard Street Retired Secretary for Ontario Teachers' (Director) Suite 413 Federation, a teacher's union Toronto, Ontario M5C 2R7 Ann Finlayson 440 Markham Street Self-employed journalist, speaker, freelance (Director) Toronto, Ontario editor and consultant M6G 2L2 Lucy Greene 1736 Caughey Lane Retired Human Resources Executive for Sun (Director) Penetang, Ontario Life Assurance Company of Canada L9M 1X4 Robin Korthals 121 King Street West Retired Financial Executive (Director) Suite 2525 Toronto, Ontario M5H 3T9 Geof Clarkson P.O. Box 251 Retired Partner with Ernst & Young (Director) Toronto-Dominion Centre Toronto, Ontario M5K 1J7 Gary Porter 820-439 University Ave. Self-employed Chartered Accountant (Director) Toronto, Ontario M5G 1Y8 Roger Wilson Fasken, Campbell Godfrey Corporate Lawyer (Director) Toronto Dominion Bank Tower Toronto, Ontario M5K 1N6 Robert Bertram 5650 Yonge Street Senior Vice President, Investments of OTP 5th Floor Toronto, Ontario M2M-4H5 Allan Ressor 5650 Yonge Street Senior Vice President, Member Services and 5th Floor Chief Information Officer of OTP Toronto, Ontario M2M-4H5 John Brennan 5650 Yonge Street Vice President, Human Resources and Public 5th Floor Affairs of OTP Toronto, Ontario M2M-4H5 Andrew Jones 5650 Yonge Street Vice President, Finance of OTP 5th Floor Toronto, Ontario M2M-4H5 Peter Maher 5650 Yonge Street Vice President, Internal Audit of OTP 5th Floor Toronto, Ontario M2M-4H5 Roger Barton 5650 Yonge Street Vice President, General Counsel & Secretary 5th Floor of OTP Toronto, Ontario M2M-4H5 Rosemarie McClean 5650 Yonge Street Vice President, Client Services of OTP 5th Floor Toronto, Ontario M2M-4H5 Morgan McCague 5650 Yonge Street Vice President, Quantitative Investments of 5th Floor OTP Toronto, Ontario M2M-4H5 Neil Petroff 5650 Yonge Street Vice President, International Equity 5th Floor Indexes, Fixed Income and Foreign Exchange of Toronto, Ontario OTP M2M-4H5 Brian Gibson 5650 Yonge Street Vice President, Equities of OTP 5th Floor Toronto, Ontario M2M-4H5 Michael Lay 5650 Yonge Street Vice President, Merchant Banking of OTP 5th Floor Toronto, Ontario M2M-4H5 Brian Muzyk 5650 Yonge Street Vice President, Real Estate of OTP 5th Floor Toronto, Ontario M2M-4H5 Leo de Bever 5650 Yonge Street Vice President, Research & Economics of OTP 5th Floor Toronto, Ontario M2M-4H5

SCHEDULE B Following are the transactions in Common Stock effected by the Reporting Person or any person named in Item 2 herein. None