Document:

<PAGE>

                                                                     EXHIBIT 4.7

                   Burlington Northern Santa Fe Corporation

                      7.95% Debenture due August 15, 2030

CUSIP No. 12189T AR 5                                           $ 275,000,000.00

This Security is a Global Security within the meaning of the Indenture
hereinafter referred to and is registered in the name of a Depositary or a
nominee thereof. This Security may not be exchanged in whole or in part for a
Security registered, and no transfer of this Security in whole or in part may be
registered, in the name of any Person other than such Depositary or a nominee
thereof, except in the limited circumstances described in the Indenture.

     BURLINGTON NORTHERN SANTA FE CORPORATION, a corporation duly organized and
existing under the laws of Delaware (herein called the "Company", which term
includes any successor Person under the Indenture hereinafter referred to), for
value received, hereby promises to pay to CEDE & CO. or registered assigns, the
principal sum of Two Hundred Seventy-Five Million Dollars ($275,000,000.00) on
August 15, 2030, and to pay interest thereon from August 8, 2000 or from the
most recent Interest Payment Date to which interest has been paid or duly
provided for, semi-annually on February 15 and August 15 in each year,
commencing February 15, 2001, at the rate of 7.95% per annum, until the
principal hereof is paid or made available for payment. The interest so payable,
and punctually paid or duly provided for, on any Interest Payment Date will, as
provided in such Indenture, be paid to the Person in whose name this Security
(or one or more Predecessor Securities) is registered at the close of business
on the Regular Record Date for such interest, which shall be the February 1 or
August 1 (whether or not a Business Day), as the case may be, next preceding
such Interest Payment Date. Any such interest not so punctually paid or duly
provided for will forthwith cease to be payable to the Holder on such Regular
Record Date and may either be paid to the Person in whose name this Security (or
one or more Predecessor Securities) is registered at the close of business on a
Special Record Date for the payment of such Defaulted Interest to be fixed by
the Trustee, notice whereof shall be given to Holders of Securities of this
series not less than 10 days prior to such Special Record Date, or be paid at
any time in any other lawful manner not inconsistent with the requirements of
any securities exchange on which the Securities of this series may be listed,
and upon such notice as may be required by such exchange, all as more fully
provided in said Indenture.

     Payment of the principal of (and premium, if any) and interest on this
Security will be made at the office or agency of the Company maintained for that
purpose in the Borough of Manhattan, The City of New York, in such coin or
currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts; provided, however, that at the
option of the Company payment of interest may be made by check mailed to the
address of the Person entitled thereto as such address shall appear in the
Security Register.

     Reference is hereby made to the further provisions of this Security set
forth on the reverse hereof, which further provisions shall for all purposes
have the same effect as if set forth at this place.

     Unless the certificate of authentication hereon has been executed by the
Trustee referred to on the reverse hereof by manual signature, this Security
shall not be entitled to any benefit under the Indenture or be valid or
obligatory for any purpose.

     In Witness Whereof, the Company has caused this instrument to be duly
executed under its corporate seal.

<TABLE>
<S>                                     <C>
Dated:     August 8, 2000               BURLINGTON NORTHERN SANTA FE CORPORATION

                                          By.......................................................
                                                                    Thomas N. Hund
                                            Senior Vice President, Chief Financial Officer and Treasurer
Attest:

 ........................
     Jeffrey T. Williams
     Assistant Secretary

</TABLE>

     This is one of the Securities of the series designated therein referred to
in the within-mentioned Indenture.

                                  BANK ONE TRUST COMPANY, N.A.
                                                                      As Trustee

                                  By..............................

                                                              Authorized Officer
<PAGE>

     This Security is one of a duly authorized issue of securities of the
Company (herein called the "Securities"), issued and to be issued in one or more
series under an Indenture, dated as of December 1, 1995 (herein called the
"Indenture", which term shall have the meaning assigned to it in such
instrument), between the Company and Bank One Trust Company, N.A., as successor
to The First National Bank of Chicago, as Trustee (herein called the "Trustee",
which term includes any successor trustee under the Indenture), and reference is
hereby made to the Indenture for a statement of the respective rights,
limitations of rights, duties and immunities thereunder of the Company, the
Trustee and the Holders of the Securities and of the terms upon which the
Securities are, and are to be, authenticated and delivered. This Security is one
of the series designated on the face hereof, limited in aggregate principal
amount to $275,000,000.00

     The Securities of this series are subject to redemption upon not less than
30 and not more than 60 days' notice by mail, at any time, as a whole or in
part, at the election of the Company, at a redemption price equal to the greater
of (i) 100% of their principal amount or (ii) the sum of the present values of
the remaining scheduled payments of principal and interest thereon discounted to
the date of redemption on a semiannual basis (assuming a 360-day year consisting
of twelve 30-day months) at the Treasury Rate (as defined in the Officers'
Certificate establishing the Securities of this series), plus 25 basis points,
plus in either case accrued interest to the date of redemption.

     In the event of redemption of this Security in part only, a new Security or
Securities of this series and of like tenor for the unredeemed portion hereof
will be issued in the name of the Holder, upon the cancellation hereof.

     The Indenture contains provisions for defeasance at any time of the entire
indebtedness of this Security or certain restrictive covenants and Events of
Default with respect to this Security, in each case upon compliance with certain
conditions set forth in the Indenture.

     If an Event of Default with respect to Securities of this series shall
occur and be continuing, the principal of the Securities of this series may be
declared due and payable in the manner and with the effect provided in the
Indenture.

     The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Securities of each series to be
affected under the Indenture at any time by the Company and the Trustee with the
consent of the Holders of a majority in principal amount of the Securities at
the time Outstanding of each series to be affected. The Indenture also contains
provisions permitting the Holders of specified percentages in principal amount
of the Securities of each series at the time Outstanding, on behalf of the
Holders of all Securities of such series, to waive compliance by the Company
with certain provisions of the Indenture and certain past defaults under the
Indenture and their consequences. Any such consent or waiver by the Holder of
this Security shall be conclusive and binding upon such Holder and upon all
future Holders of this Security and of any Security issued upon the registration
of transfer hereof or in exchange herefor or in lieu hereof, whether or not
notation of such consent or waiver is made upon this Security.

     As provided in and subject to the provisions of the Indenture, the Holder
of this Security shall not have the right to institute any proceeding with
respect to the Indenture or for the appointment of a receiver or trustee or for
any other remedy thereunder, unless such Holder shall have previously given the
Trustee written notice of a continuing Event of Default with respect to the
Securities of this series, the Holders of not less than 25% in principal amount
of the Securities of this series at the time Outstanding shall have made written
request to the Trustee to institute proceedings in respect of such Event of
Default as Trustee and offered the Trustee reasonable indemnity, and the Trustee
shall not have received from the Holders of a majority in principal amount of
Securities of this series at the time Outstanding a direction inconsistent with
such request, and the Trustee shall have failed to institute any such
proceeding, for 60 days after receipt of such notice, request and offer of
indemnity. The foregoing shall not apply to any suit instituted by the Holder of
this Security for the enforcement of any payment of principal hereof or any
premium or interest hereon on or after the respective due dates expressed
herein.

     No reference herein to the Indenture and no provision of this Security or
of the Indenture shall alter or impair the obligation of the Company, which is
absolute and unconditional, to pay the principal of and any premium and interest
on this Security at the times, place and rate, and in the coin or currency,
herein prescribed.

     As provided in the Indenture and subject to certain limitations therein set
forth, the transfer of this Security is registrable in the Security Register,
upon surrender of this Security for registration of transfer at the office or
agency of the Company in any place where the principal of and any premium and
interest on this Security are payable, duly endorsed by, or accompanied by a
written instrument of transfer in form satisfactory to the Company and the
Security Registrar duly executed by, the Holder hereof or his attorney duly
authorized in writing, and thereupon one or more new Securities of this series
and of like tenor, of authorized denominations and for the same aggregate
principal amount, will be issued to the designated transferee or transferees.

     The Securities of this series are issuable only in registered form without
coupons in denominations of $1,000 and any integral multiple thereof. As
provided in the Indenture and subject to certain limitations therein set forth,
Securities of this series are exchangeable for a like aggregate principal amount
of Securities of this series and of like tenor of a different authorized
denomination, as requested by the Holder surrendering the same.

     No service charge shall be made for any such registration of transfer or
exchange, but the Company may require payment of a sum sufficient to cover any
tax or other governmental charge payable in connection therewith.

     Prior to due presentment of this Security for registration of transfer, the
Company, the Trustee and any agent of the Company or the Trustee may treat the
Person in whose name this Security is registered as the owner hereof for all
purposes, whether or not this Security is overdue, and neither the Company, the
Trustee nor any such agent shall be affected by notice to the contrary.

     All terms used in this Security which are defined in the Indenture shall
have the meanings assigned to them in the Indenture.<PAGE>

                                                                   EXHIBIT 10.20

                   BURLINGTON NORTHERN SANTA FE CORPORATION
                  SUPPLEMENTAL INVESTMENT AND RETIREMENT PLAN

                     Effective January 1, 1997, as amended

                              ARTICLE I - GENERAL

  Section 1.1  Establishment of Plan and Purpose.  Burlington Northern Santa Fe
               ---------------------------------
Corporation, a Delaware Corporation, (hereinafter the "Company"), has
established the Burlington Northern Santa Fe Supplemental Investment and
Retirement Plan, (hereinafter the "Plan"), effective January 1, 1997.  This plan
is intended to replace the Burlington Northern Inc. Restoration Plan and the
Santa Fe Pacific Corporation Supplemental Retirement and Savings Plan, and both
plans shall hereby be merged into this Plan, provided, however, that any
compensation deferred under the terms of a predecessor plan shall be distributed
pursuant to the terms of the deferral election made under such plan.  The
purpose of this Plan is to provide certain highly compensated employees of the
Company and certain of its subsidiaries (hereinafter the "Employing Companies"),
the opportunity to defer the receipt of compensation and to receive additional
retirement income from the Employing Companies.  This plan is not intended to
qualify under Section 401(a) of the Internal Revenue Code of 1986, as amended
(hereinafter the "Code"), or be subject to Parts 2, 3, or 4 of Title I of the
Employee Retirement Income Security Act of 1974, as amended (hereinafter
"ERISA").

  Section 1.2  Affiliated Companies.  The term "Affiliated Company" shall mean
               --------------------
every corporation (including the Company) which is a member of a controlled
group of corporations (within the meaning of Section 414(b) of the Internal
Revenue Code).  The Company and each Affiliated Company which, with the consent
of the Chief Executive Officer or Board of Directors of the Company, adopts the
Plan are referred to herein collectively as the "Employing Companies" and
individually as an"Employing Company".

  Section 1.3  Plan Administration.  The authority to control and manage the
               -------------------
operation and administration of the Plan shall be vested in the Burlington
Northern Santa Fe Employee Benefits Committee (hereinafter the "Committee").
Any interpretation of the Plan by the Committee or its delegate and any decision
made by the Committee or its delegate on any other matter within its discretion
are final and binding on all persons.  The Committee shall have discretionary
authority to administer, construe and interpret the Plan, to decide all
questions including but not limited to eligibility, payment of any benefits
hereunder and to make all other determinations deemed necessary or advisable for
the administration of the Plan.

                                      -1-
<PAGE>

  The Committee shall act with or without a meeting by the vote or concurrence
of a majority of its members; but no member of the Committee who is a
Participant shall take part in any Committee action or any matter that has
particular reference to his own interest hereunder.  The Committee shall
administer this Plan and discharge its responsibilities hereunder in a uniform
and non-discriminatory manner as to all Participants.

  Section 1.4  Non-Alienation.  Benefits payable to any individual under the
               --------------
Plan may not be voluntarily or involuntarily assigned, alienated, pledged or
subject to attachment, anticipation, garnishment, levy, execution or other legal
or equitable process.

  Section 1.5  Source of Benefits.  Subject to the terms and conditions of the
               ------------------
Plan, any amount payable to or on account of a Participant under this Plan by
any Employing Company shall be paid from the general assets of that Employing
Company or from one or more trusts, the assets of which are subject to the
claims of the Employing Companies' general creditors.  None of the individuals
entitled to benefits under the Plan shall have any preferred claim on, or any
beneficial ownership interest in, any assets of any Employing Company or of any
such trust, and any rights of such individuals under the Plan or any such trust
shall constitute unsecured contractual rights only.

  Section 1.6  Plan Not Contract of Employment.  The Plan does not constitute a
               -------------------------------
contract of employment, and nothing in the Plan will give any participant the
right to be retained in the employ of any Employing Company, nor any right or
claim to any benefit under the Plan, except to the extent specifically provided
under the terms of the Plan.

  Section 1.7  Notices.  Any notice or document required to be given to or filed
               -------
with an Employing Company, the Company or the Committee shall be considered to
be given or filed:

  (a) on the date delivered to the Vice President - Human Resources of the
      Company; or

  (b) three days after the date sent by certified mail to the Secretary of the
Company.

  Section 1.8  Applicable Law.  The Plan shall be construed and administered in
               --------------
accordance with the internal laws of the State of Texas.

  Section 1.9  Gender and Number.  Where the context admits, words in any gender
               -----------------
shall include any other gender, words in the singular shall include the plural
and the plural shall include the singular.

  Section 1.10  Plan Year. The Plan Year shall be the calendar year.
                ---------

                          ARTICLE II - PARTICIPATION

                                      -2-
<PAGE>

  Section 2.1  Participation.  The Company shall establish from time to time the
               -------------
Employing Companies which may participate and the class of highly-compensated
employees of each Employing Company who shall be eligible for the benefits
provided in Article IV below (hereinafter the "Participants"); provided,
however, that the class of eligible employees of each Employing Company shall be
limited to employees who are members of a select group of management or highly
compensated employees within the meaning of Section 401(a)(1) of ERISA.
Employees who become eligible to participate in the Plan after February 1 of a
calendar year shall not be eligible to participate in the Plan until January 1
of the following calendar year.  If the Company determines that participation by
one or more Participants shall cause the Plan as applied to any Employing
Company to be subject to Parts 2, 3, or 4 of Title I of ERISA, the entire
interest of such Participant or Participants under the Plan shall be immediately
paid to such Participant by the applicable Employing Company, notwithstanding
any election of the Participant, or shall otherwise be segregated from the Plan
in the discretion of the Company, and such Participant or Participants shall
cease to have any interest under the Plan.

                             ARTICLE III - VESTING

  Section 3.1  Vesting.  A Participant shall be fully vested in his deferral
               -------
amounts and earnings at all times and subject to investment gains and losses.  A
Participant shall be vested in Employer Matching Contributions in accordance
with the vesting schedule set forth in Article 6 of the Burlington Northern
Santa Fe Investment and Retirement Plan (the "Investment Plan").

                            ARTICLE IV - DEFERRALS

  Section 4.1  Deferral Elections.  To become a Participant, subject to such
               ------------------
additional terms, conditions and limitations as the Committee may from time to
time impose, a Participant may make an election to irrevocably defer receipt of
certain eligible compensation otherwise payable to him by his Employer for a
Plan Year by means of such procedures as are approved by the Committee,
including filing a Deferral  Election Form or by telephonic voice response or
other telephonic or electronic transmission indicating his or her desire to have
a portion of his or her eligible compensation deferred, or by failing to
indicate a desire not to participate in the Plan.  Such deferral elections shall
be made as follows:

  (a)  With the approval of the Compensation Committee of the Board, a
Participant may elect not to participate in the Investment Plan and may elect to
defer up to 15% of (i) Compensation as defined in the Investment Plan, (ii) base
salary that is not eligible compensation under the Investment Plan, and (iii)
any cash incentive payments otherwise payable to him by his Employing Company
that Plan Year; or

  (b)  Unless the Compensation Committee of the Board otherwise specifies, a
Participant may elect to defer (i) up to 15% of base salary that is not eligible
Compensation under the Investment

                                      -3-
<PAGE>

Plan, (ii) up to 15% of any cash incentive payments that are not eligible
Compensation under the Investment Plan, and iii) that to the extent that a
Participant is subject to a limitation on before-tax contributions under Section
402(g)(1) of the Code to the Investment Plan, the amounts which could have been
deferred into the Investment Plan but for such limitation may be deferred under
this Plan ("Deferred Compensation").

  (c)  Such elections shall be made at such time and in such manner as the
Committee shall provide. An election must specify the percentage, if any, which
the Participant chooses to defer and authorize his Employing Company to make
regular payroll deductions. The Committee may institute procedures whereby an
eligible employee's Contribution Election percentage under the Investment Plan
will automatically apply for purposes of the Plan unless the eligible employee
affirmatively elects otherwise.

  (d)  A Participant may elect to suspend all future deferrals in a Plan Year
other than in respect to incentive payments, and will not be permitted to resume
participation until the next Plan Year.

  Section 4.2  Employer Matching Contribution.  Subject to such limitations as
               ------------------------------
the Committee may from time to time impose, for each Plan Year, Participants
shall be credited with an "Employer Matching Contribution" with respect to 100%
of the compensation deferred hereunder that would be payable during that Plan
Year, provided that Employer Matching Contributions shall be equal to 50% of
Deferred Contributions deferred up to 6% of Compensation hereunder.

  To the extent that additional employer contributions are made pursuant to the
second paragraph of Section 4.5 of the Investment Plan by reason of the
attainment of financial and other objectives of an Employing Company,
Participants who have Accounts in the Plan when such contributions are made
shall be credited after the close of the Plan Year to which such objectives
relate with an additional Employer Matching Contribution.  The amount of such
additional Employer Matching Contributions shall be equal to the same uniform
percentage, not to exceed 30% of the Deferred Contributions up to 6 percent of
Compensation actually made hereunder, as is credited pursuant to the second
paragraph of Section 4.5 of the Investment Plan.

                          ARTICLE V - PLAN ACCOUNTING

  Section 5.1  Accounts.  The Committee shall establish an Account for each
               --------
Participant who elects to participate in the Plan under subsection 4.1.  Each
Account shall be adjusted in accordance with this Article V in a uniform, non-
discriminatory manner, as of such periodic "Accounting Dates" as may be
determined by the Committee from time to time (which Accounting Dates shall be
not less frequent than quarterly.)  As of each Accounting Date, the balance of
each Account shall be adjusted as follows:

                                      -4-
<PAGE>

  (a)  first, charge to the Account balance the amount of any distributions
under the Plan with respect to that Account that have not previously been
charged;

  (b)  then, credit to the Account balance the amount of the compensation to be
deferred by the Participant in accordance with the provisions of subsection 4.1
and the amount of Employer Matching Contributions to be credited in accordance
with Section 4.2  that have not previously been credited;

  (c)  then, adjust the Account balance for the applicable assumed rate of
earnings in accordance with subsection 5.2.

  Section 5.2  Adjustment of Accounts for Earnings.  The amounts credited to a
               -----------------------------------
Participant's Account in accordance with subsections 4.1 and 4.2 shall be
adjusted as of each Accounting Date to reflect the value of an investment equal
to the Participant's Account balance in one or more assumed investments that the
Committee offers from time to time, and which the Participant directs the
Committee to use for purposes of adjusting his Account.  Such amount shall be
determined without regard to taxes that would be payable with respect to any
such assumed investment.  The Committee may eliminate any assumed investment
alternative at any time;  provided, however, that the Committee may not
retroactively eliminate any assumed investment alternative.  To the extent
permitted by the Committee, the Participant may elect to have different portions
of his Account balance for any period adjusted on the basis of different assumed
investments.  The Account of each Participant shall be credited with the amount
deferred by the Participant as of the date on which the amount of such Deferred
Compensation is communicated to the Plan recordkeeper which shall be as soon as
reasonably practicable after the date the compensation would otherwise have been
payable to the Participant, or, if such date is not an Accounting Date, as of
the first Accounting Date occurring thereafter.  Notwithstanding the election by
Participants of certain assumed investments and the adjustment of their Accounts
based on such investment decisions, the Plan does not require, and no trust or
other instrument maintained in connection with the Plan shall require that any
assets or amounts which are set aside in a trust or otherwise for the purpose of
paying Plan benefits shall actually be invested in the investment alternatives
selected by Participants.

  Section 5.3  Participant Statements.  At least quarterly, the Committee shall
               ----------------------
cause to be furnished to each Participant a statement indicating, on the basis
of the latest available information, the status of the Participants' Accounts.

                   ARTICLE VI - PAYMENT OF DEFERRED AMOUNTS

  Section 6.1  Termination of Employment.  Subject to the provisions of
               -------------------------
subsection 1.5 and such other rules as the Committee may establish, upon a
Participant's death or termination of active employment, the Participant's
entire Account balance, including the Employer's Matching Contribution on
amounts deferred prior to the Participant's death or termination date, shall be
paid to or on account of the Participant as follows:

                                      -5-
<PAGE>

  (a)  in a single lump sum payment on March 1 of the year following
termination; or

  (b)  if elected by the Participant at least one year prior to the distribution
or such time period as may be established by the Committee, in annual
installments over a period of five or fewer years, beginning July 31 of the
calendar year following the year in which the date of termination occurs. Each
annual installment shall be equal to the Participant's entire Account balance
divided by the number of installments yet to be distributed.

  Section 6.2  Beneficiary Designation.  Each Participant may, from time to
               -----------------------
time by signing a form furnished by the Committee, designate any legal or
natural person or persons (who may be designated contingently or successively)
to whom his benefits under the Plan are to be paid if he dies before he receives
all of his benefits.  A beneficiary designation form will be effective only when
the signed form is filed with the Committee while the Participant is alive.  A
beneficiary designation may be revoked or amended only by the completion of a
new beneficiary designation form, provided, however, that if a Participant's
spouse is named as such Participant's beneficiary, and the Participant and such
spouse are subsequently divorced, then the designation of the spouse made prior
to the divorce shall be null and void. In order to designate a former spouse as
a beneficiary, a new beneficiary designation form must be completed.  If a
deceased Participant failed to designate a beneficiary as provided above, or if
the designated beneficiary of a deceased Participant died before him, his
benefits shall be paid in accordance with the following order of priority:  (i)
to his surviving spouse, if any; (ii) to his surviving children in equal shares;
or (iii) the estate of the last to die of the Participant or his designated
beneficiary.  The benefits under this plan which are payable to a beneficiary
shall be paid in a lump sum.

  Section 6.3  Withholding for Tax Liability.  The Company may withhold or cause
               -----------------------------
to be withheld from any payment of benefits made pursuant to the Plan any taxes
required to be withheld with regard to such payment.

  Section 6.4  Hardship Distributions.  The Committee may, pursuant to rules
               ----------------------
adopted by it and applied in a uniform manner, accelerate the date of
distribution of a Participant's Account because of hardship at any time.
"Hardship" shall mean an unforeseeable, severe financial condition resulting
from (a) a sudden and unexpected illness or accident of the Participant or his
dependent (as defined in section 152(a) of the Code); (b) loss of the
Participant's property due to casualty; or (c) other similar extraordinary and
unforeseeable circumstances arising as a result of events beyond the control of
the Participant, but which may not be relieved through other available resources
of the Participant, as determined by the Committee in accordance with uniform
rules adopted by it.

                        ARTICLE VII - CHANGE IN CONTROL

  Section 7.1  Change in Control.  In the event of a change in control as
               -----------------
defined in The Burlington Northern and Santa Fe Railway Company Severance
Agreements, all Accounts shall be

                                      -6-
<PAGE>

fully vested, and the Company shall be obligated to transmit funds equal to the
outstanding liabilities under this Plan to such trust as may be established by
the Company to provide for security of benefits hereunder.

                    ARTICLE VIII - AMENDMENT OR TERMINATION

  Section 8.1  Administrative Amendments.  The Chief Executive Officer of the
               -------------------------
Company may make amendments to the Plan, provided that such amendments do not
materially increase the benefits to Participants or the costs of the Plan.

  Section 8.2  Amendments and Termination.  The Board of Directors of the
               --------------------------
Company may amend the Plan at any time and may terminate the Plan at any time
without the consent of the participants or beneficiaries, provided however, that
no amendment shall divest any Participant or beneficiary of the credits to his
Account, or any rights to which he would have been entitled if the Plan had been
terminated immediately prior to the effective date of such amendment.  Any
Employing Company may terminate its participation in the Plan at any time,
provided that it has made adequate provision for any amount payable by it under
the terms of the Plan as in effect on the date it terminates its participation
in the Plan.  Upon termination of the Plan as to any Employing Company, the
Company may, in its discretion applied in a uniform manner, provided that
amounts attributed to that Employing Company shall be distributed in accordance
with the provisions of 6.1.  Upon termination of the Plan as to all Employing
Companies, the Company may, in its sole discretion applied in a uniform manner
to all Participants, cause a lump sum payment of all benefits for all
Participants to be made as soon as reasonably practicable or the date
established for payment under subsection 4.1(c).

                                      -7-
<PAGE>

The Burlington Northern Santa Fe Supplemental Investment and Retirement Plan is
hereby adopted, effective January 1, 1997, by Burlington Northern Santa Fe
Corporation.

     IN WITNESS HEREOF, the Chairman and Chief Executive Officer of Burlington
Northern Santa Fe Corporation has hereby adopted this Plan on this ___________
day of November, 1999.

BURLINGTON NORTHERN SANTA FE CORPORATION

___________________________________________
             Robert D. Krebs
    Chairman and Chief Executive Officer

___________________________________________
                 Witness

               (CORPORATE SEAL)

                                      -8-

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