Document:

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                                                                  EXHIBIT 10.268

                                                              SECURITY AGREEMENT

[WELLS FARGO LOGO]  WELLS FARGO EQUIPMENT FINANCE, INC.
                    733 Marquette Avenue, Suite 700
                    MAC N9306-070
                    Minneapolis, MN 55402

                                                         Dated as of May 4, 2004
                                                      Contract Number 102541-700

Name and Address of Debtor:
MEADOW VALLEY CONTRACTORS, INC.
4411 SOUTH 40TH STREET
PHOENIX, AZ 85040

1.    SECURITY INTEREST AND COLLATERAL. TO SECURE THE PAYMENT AND PERFORMANCE OF
      EACH AND EVERY DEBT, LIABILITY AND OBLIGATION OF EVERY TYPE AND
      DESCRIPTION WHICH Debtor may now or at any time hereafter owe to Wells
      Fargo Equipment Finance, Inc. ("Secured Party") (whether such debt,
      liability or obligation now exists or is hereafter created or incurred,
      whether it is currently contemplated by the Debtor and Secured Party,
      whether any documents evidencing it refer to the Security Agreement, and
      whether it is or may be direct or indirect, due or to become due, absolute
      or contingent, primary or secondary, liquidated or unliquidated, or joint,
      several or joint and several; all such debts, liabilities and obligations
      being herein collectively referred to as the "Obligations"), Debtor hereby
      grants Secured Party a security interest (herein called the "Security
      Interest") in the following property (herein called the "Collateral"):

            TWO (2) NEW 2004 INGERSOLL-RAND MODEL VR1044C REACH FORKLITTS,
      SERIAL NUMBERS: 177011, 177012 INCLUDING ALL ATTACHMENTS AND ACCESSORIES.
      together with all substitutions and replacements for and products of the
      Collateral, all proceeds, accessories, attachments, parts, equipment and
      repairs now or hereafter attached or affixed to or used in connection with
      the Collateral.

2.    REPRESENTATIONS, WARRANTIES AND AGREEMENTS. Debtor represents, warrants
      and agrees that:

      (a)   AUTHORIZATION. If Debtor is a corporation, a partnership or a
            limited liability company, the execution, delivery and performance
            of this Agreement has been duly authorized by all necessary action
            on the part of the Debtor and will not violate any provision of the
            Debtor's articles of incorporation or bylaws, partnership agreement
            or articles of organization or management agreement, as the case may
            be.

      (b)   OFFICE LOCATION. Debtor's chief executive office (if Debtor is a
            corporation, a partnership or a limited liability company) is
            located at the address for Debtor shown above. Debtor will not
            change the location of its chief executive office or his/her
            residence, as the case may be, without first giving Secured Party at
            least 10 days prior written notice of the new location.

      (c)   BUSINESS PURPOSE; LAWFUL USE. The Equipment will be used primarily
            for business purposes as opposed to personal, family or household
            purposes. Debtor will comply with all laws and regulations
            applicable to the Equipment and its use.

3.    ADDITIONAL REPRESENTATIONS, WARRANTIES AND AGREEMENTS. Debtor represents,
      warrants and agrees that:

      (a)   Debtor has (or will have at the time Debtor acquires rights in
            Collateral hereafter arising) absolute title to each item of
            Collateral free and clear of all security interests, liens and
            encumbrances, except the Security Interest and will defend the
            Collateral against all claims or demands of all persons other than
            Secured Party. Debtor will not sell or otherwise dispose of the
            Collateral or any interest therein without the prior written consent
            of Secured Party. If Debtor is a corporation, this Agreement has
            been duly and validly authorized by all necessary corporate action,
            and, if Debtor is a partnership or a limited liability company, the
            partner(s) or manager(s) executing this Agreement has (have)
            authority to act for the partnership or the limited liability
            company.

      (b)   Debtor will not permit any Collateral to be located in any state
            (and, if county filing is required, in any county) in which the
            financing statement covering such Collateral is required to be, but
            has not in fact been, filed in order to perfect the Security
            Interest.

      (c)   Debtor will (i) keep all Collateral in good repair, working order
            and condition, normal depreciation excepted, and will, from time to
            time, replace any worn, broken or defective parts thereof; (ii)
            promptly pay all taxes and other governmental charges levied or
            assessed upon or against any Collateral or upon or against the
            creation, perfection or continuance of the Security Interest; (iii)
            keep all Collateral free and clear of all security interests, liens
            and encumbrances except the Security Interest; (iv) at all
            reasonable times, permit Secured Party or its representatives to
            examine or inspect any Collateral, wherever located, and to examine,
            inspect and copy Debtor's books and records pertaining to the
            Collateral and its business and financial condition; (v) keep
            accurate and complete records pertaining to Debtor's business and
            financial condition and submit to Secured Party such periodic
            reports concerning Debtor's business and financial condition as
            Secured Party may from time to time reasonably request; (vi)
            promptly notify Secured Party of any loss of or material damage to
            any Collateral; (vii) at all times keep all Collateral insured
            against risks of fire (including so-called extended coverage),
            theft, collision (in case of Collateral consisting of motor
            vehicles) and such other risks and in such amounts as Secured Party
            may reasonably request, with any loss payable to Secured Party to
            the extent of its interest, (viii) from time to time execute such
            financing statements as Secured Party may reasonably require in
            order to perfect the Security Interest and, if any Collateral
            consists of a motor vehicle, execute such documents as may be
            required to have the Security Interest properly noted on a
            certificate of title; (ix) pay when due or reimburse Secured Party
            on demand for all costs of collection of any of the Obligations and
            all other out-of-pocket expenses (including in each case all
            reasonable attorneys' fees) incurred by Secured Party in connection
            with the creation, perfection, satisfaction, protection, defense or
            enforcement of the Security Interest or the creation, continuance,
            protection, defense or enforcement of this Agreement or any or all
            of the Obligations, including expenses incurred in any litigation or
            bankruptcy or insolvency proceedings; (x) execute, deliver or
            endorse any and all instruments, documents, assignments, security
            agreements and other agreements and writings which Secured Party may
            at any time reasonably request in order to secure, protect, perfect
            or enforce the Security Interest and Secured Party's rights under
            this Agreement; (xi) not use or keep any Collateral, or permit it to
            be used or kept, for any unlawful purpose or in violation of any
            federal, state or local law, statute or ordinance; and (xii) not
            permit any Collateral to become part of or to be affixed to any real
            property without first assuring to the reasonable satisfaction of
            Secured Party that the Security Interest will be prior and senior to
            any interest or lien then held or thereafter acquired by any
            mortgagee of such real property or the owner or purchaser of any
            interest therein. If Debtor at any time fails to perform or observe
            any agreement contained in this Section 3(c), and if such failure
            shall continue for a period of ten calendar days after Secured Party
            gives Debtor written notice thereof (or, in the case of the
            agreements contained in clauses (vii) and {viii) of this Section
            3(c), immediately upon the occurrence of such failure, without
            notice or lapse of time), Secured Party may (but need not) perform
            or observe such agreement on behalf and in the name, place and stead
            of Debtor (or, at Secured Party's option, in Secured Party's own
            name) and may (but need not) take any and all other actions which
            Secured Party may reasonably deem necessary to cure or correct such
            failure (including, without limitation, the payment of taxes, the
            satisfaction of security interests, liens, or

           THIS AGREEMENT INCLUDES THE TERMS ON THE ATTACHED PAGE(S).

Meadow Valley Contractors, Inc.

Debtor

By /s/ Clinton Tryon
   -----------------------------

Title  [ILLEGIBLE]

<PAGE>

            encumbrances, the procurement and maintenance of insurance, the
            execution of financing statements, the endorsement of instruments,
            and the procurement of repairs, transportation or insurance); and,
            except to the extent that the effect of such payment would be to
            render any loan or forbearance of money usurious or otherwise
            illegal under any applicable law Debtor shall thereupon pay Secured
            Party on demand the amount of all moneys expended and all costs and
            expenses (including reasonable attorneys' fees) incurred by Secured
            Party in connection with or as a result of Secured Party's
            performing or observing such agreement or taking such actions,
            together with interest thereon from the date expended or incurred by
            Secured Party at the highest rate then applicable to any of the
            Obligations. To facilitate the performance or observance by Secured
            Party of such agreements of Debtor, Debtor hereby irrevocably
            appoints (which appointment is coupled with an interest) Secured
            Party, or its delegate, as the attorney-in-fact of Debtor with the
            right (but not the duty) from time to time to create, prepare,
            complete, execute, deliver, endorse or file, in the name and on
            behalf of Debtor, any and all instruments, documents, financing
            statements, applications for insurance and other agreements and
            writings required to be obtained, executed, delivered or endorsed by
            Debtor under this Section 3.

4.    ASSIGNMENT OF INSURANCE. Debtor hereby assigns to Secured Party, as
      additional security for the payment of the Obligations, any and all moneys
      (including but not limited to proceeds of insurance and refunds of
      unearned premiums) due or to become due under, and all other rights of
      Debtor under or with respect to, any and all policies of insurance
      covering the Collateral, and Debtor hereby directs the issuer of any such
      policy to pay any such moneys directly to Secured Party. Both before and
      after the occurrence of an Event of default. Secured Party may (but need
      not), in its own name or in Debtor's name, execute and deliver proofs of
      claim, receive all such moneys, endorse checks and other instruments
      representing payment of such moneys, and adjust, litigate, compromise or
      release any claim against the issuer of any such policy.

5.    EVENTS OF DEFAULT. Each of the following occurrences shall constitute an
      event of default under this Agreement (herein called "Event of Default").
      (i) Debtor shall fail to pay any or all of the Obligations when due or (if
      payable on demand) on demand, or shall fail to observe or perform any
      covenant or agreement herein binding on it; (ii) any representation or
      warranty by Debtor set forth in the Agreement or made to Secured Party in
      any financial statements or reports submitted to Secured Party by or on
      behalf of Debtor shall prove materially false or misleading; (iii) a
      garnishment, summons or a writ of attachment shall be issued against or
      served upon the Secured Party for the attachment of any property of Debtor
      or any indebtedness owing to Debtor; (iv) Debtor or any guarantor of any
      Obligation shall (A) be or become insolvent (however defined); or (B)
      voluntarily file, or have filed against it involuntarily, a petition under
      the United States Bankruptcy Code; or (C) if a corporation, partnership,
      or organization, be dissolved or liquidated or, if a partnership, suffer
      the death of a partner or, if an individual, die: or (D) go out of
      business; (v) an event of default shall occur under any indebtedness
      Debtor may now or hereafter owe to any affiliate of Secured Party; (vi) if
      Debtor is a corporation, more than 50% of the shares of voting stock of
      Debtor shall become owned by a shareholder or shareholders who were not
      owners of voting stock of Debtor on the date of this Agreement or, if
      Debtor is a partnership, more than 50% of the partnership interests in the
      Debtor shall become owned by a partner or partners who were not partners
      of Debtor on the date of this Agreement; or (vii) Debtor shall consolidate
      with or merge into, or sell all or substantially all of its assets to, any
      individual, corporation, or other entity.

6.    REMEDIES UPON EVENT OF DEFAULT. Upon the occurrence of an Event of Default
      under Section 5 and at any time thereafter, Secured Party may exercise any
      one or more of the following rights and remedies: (i) declare all
      unmatured Obligations to be immediately due and payable, and the same
      shall thereupon be immediately due and payable, without presentment or
      other notice or demand; (ii) exercise and enforce any or all rights and
      remedies available upon default to a secured party under the Uniform
      Commercial Code, including but not limited to the right to take possession
      of any Collateral, proceeding without judicial process or by judicial
      process (without a prior hearing or notice thereof, which Debtor hereby
      expressly waives), and the right to sell, lease or otherwise dispose of
      any or all of the Collateral, and in connection therewith, Secured Party
      may require Debtor to make the Collateral available to Secured Party at a
      place to be designated by Secured Party which is reasonably convenient to
      both parties, and if notice to Debtor of any intended disposition of
      Collateral or any other intended action is required by law in a particular
      instance, such notice shall be deemed commercially reasonable if given (in
      the manner specified in Section 7) at least 10 calendar days prior to the
      date of intended disposition or other action; (iii) exercise or enforce
      any or all other rights or remedies available to Secured Party by law or
      agreement against the Collateral, against Debtor or against any other
      person or property. Upon the occurrence of the Event of Default described
      in Section 5(iv)(B), all Obligations shall be immediately due and payable
      without demand or notice thereof.

7.    MISCELLANEOUS. This Agreement can be waived, modified, amended, terminated
      or discharged, and the Security Interest can be released, only explicitly
      in a writing signed by Secured Party. A waiver signed by Secured Party
      shall be effective only in the specific instance and for the specific
      purpose given. Mere delay or failure to act shall not preclude the
      exercise or enforcement of any of Secured Party's rights or remedies. All
      rights and remedies of Secured Party shall be cumulative and may be
      exercised singularly or concurrently, at Secured Party's option, and the
      exercise or enforcement of any one such right or remedy shall neither be a
      condition to nor bar the exercise or enforcement of any other. All notices
      to be given to Debtor shall be deemed sufficiently given if delivered or
      mailed by registered or certified mail, postage prepaid, to Debtor at its
      address set forth above or at the most recent address shown on Secured
      Party's records. Secured Party's duty of care with respect to Collateral
      in its possession (as imposed by law) shall be deemed fulfilled if Secured
      Party exercises reasonable care in physically safekeeping such Collateral
      or, in the case of Collateral in the custody or possession of a bailee or
      other third person, exercises reasonable care in the selection of the
      bailee or other third person, and Secured Party need not otherwise
      preserve, protect, insure or care for any Collateral. Secured Party shall
      not be obligated to reserve any rights Debtor may have against prior
      parties, to realize on the Collateral at all or in any particular manner
      or order, or to apply any cash proceeds of Collateral in any particular
      order of application. This Agreement shall be binding upon and inure to
      the benefit of Debtor and Secured Party and their respective heirs,
      representatives, successors and assigns and shall take effect when signed
      by Debtor and delivered to Secured Party, and Debtor waves notice of
      Secured Party's acceptance hereof. Secured Party may execute this
      Agreement if appropriate for the purpose of filing, but the failure of
      Secured Party to execute this Agreement shall not affect or impair the
      validity or effectiveness of this Agreement. A carbon, photographic or
      other reproduction of this Agreement or of any financing statement signed
      by the Debtor shall have the same force and effects as the original for
      all purposes of a financing statement. Except to the extent otherwise
      required by law, this Agreement shall be governed by the internal laws of
      the State of Minnesota. If any provision or application of this Agreement
      is held unlawful or unenforceable in any respect, such illegality or
      unenforceability shall not affect other provisions or applications which
      can be given effect, and this Agreement shall be construed as if the
      unlawful or unenforceable provision or application had never been
      contained herein or prescribed hereby. All representations and warranties
      contained in this Agreement shall survive the execution, delivery and
      performance of this Agreement and the creation and payment of the
      Obligations. If this Agreement is signed by more than one person as
      Debtor, the term "Debtor" shall refer to each of them separately and to
      both or all of them jointly; all such persons shall be bound both
      severally and jointly with the other(s); and the Obligations shall include
      all debts, liabilities and obligations owed to Secured Party by any Debtor
      solely or by both or several or all Debtors jointly or jointly and
      severally, and all property described in Section 1 shall be included as
      part of the Collateral, whether it is owned jointly by both or all Debtors
      or is owned in whole or in part by one (or more) of them. There shall
      be(1) counterpart of this Agreement and it will be marked "Original." To
      the extent that this Agreement constitutes chattel paper (as that term is
      defined by the Uniform Commercial Code), a security interest only may be
      created in the Agreement marked "Original." DEBTOR HEREBY WAIVES ANY RIGHT
      TO A JURY TRIAL WITH RESPECT TO ANY MATTER UNDER OR IN CONNECTION WITH THE
      SECURITY AGREEMENT.

                                                                 Initials ______

Page 2 of 2: SECAGREQ

<PAGE>

                                                                 PROMISSORY NOTE

[WELLS FARGO LOGO]  WELLS FARGO EQUIPMENT FINANCE, INC.
                    733 Marquette Avenue, Suite 700
                    MAC N9306-070
                    Minneapolis, MN 55402

                                                         Dated as of May 4, 2004

For value received, the undersigned, hereby promises to pay to the order of
Wells Fargo Equipment Finance, Inc. (the "Lender") at its office in Minneapolis,
MN, or at such other place as may be designated from time to time by the holder
hereof, the sum of $192,607.80 in installments according to the schedule set
forth below; provided, however, that the undersigned and the Lender may agree to
any other payment schedule, in which case any variations shall be set forth in
the space provided for additional provisions. The first payment period shall
begin on the 15th day of the month in which Lender disburses the loan proceeds
if disbursement is made on or before the 15th day of such month, and the first
payment period shall begin on the last day of such month if disbursement is made
during the balance of such month. The first installment shall be payable on the
first payment due date set forth below (which may be the same as the date the
first payment period begins). Subsequent installments shall be payable on the
first day of each payment period beginning after the first payment period. The
undersigned agrees that the date the first payment period begins may be left
blank when this Note is executed and hereby authorizes Lender to insert such
date based upon the date the loan proceeds are disbursed.

PAYMENT SCHEDULE:

Date first payment period begins:         First payment due: 6/15/04
Number of Installments: 60                Amount of each installment: $3,210.13
Payment period: MONTHLY                   Annual Interest rate used in computing
                                          payment schedule: 4.90%
Principal amount of loan proceeds
disbursed: $170,520.47

In addition to installment payments as set forth above, the undersigned agrees
to pay Lender interim interest on the loan proceeds disbursed hereunder from the
date of disbursement to the date the first payment period begins at the annual
interest rate set forth above used in computing the payment schedule. Interim
interest shall be due and payable on the date the first payment period begins.

If any installment is not paid when due, then in addition to any other remedy
Lender may have hereunder, Lender may impose and, if imposed, the undersigned
shall pay a late charge of 5% of the amount of the delinquent installment but in
any event not more than permitted by applicable law. Payments thereafter
received shall be applied first to delinquent installments and then to current
installments.

This Note may be prepaid in whole at any time by paying to Lender the unpaid
principal balance of this Note, determined by using the simple interest method
at the rate set forth herein plus a prepayment premium of 4% of the principal
amount prepaid if prepaid during months 1-24, 3% during months 25 - 36, 2%
during months 37 - 48 and 1% thereafter, together with accrued but unpaid
interest and late charges. Any partial prepayment shall be applied to the last
maturing installment or installments. Upon any prepayment in full, the unearned
portion of the interest will be refunded using the simple interest method.

This Note may be prepaid in part but only as a result of a disposition of an
item of collateral which secures this Note. The amount of such prepayment shall
be the product of the unpaid principal balance of this Note determined in
accordance with the preceding paragraph times a fraction, the numerator of which
is the original advance made by the Lender with respect to the item of
collateral in question and the denominator of which is the original principal
balance of this Note with respect to the existing collateral securing this Note.
Nothing contained in this paragraph shall be construed as an authorization by
Lender to the undersigned to sell or otherwise dispose of an item of collateral
which secures this Note. Such sale or disposition of an item of collateral by
the undersigned shall be made solely in accordance with the terms of the
security agreement or other agreement pursuant to which the undersigned pledged
such item of collateral to Lender.

The undersigned may remit to Lender amounts in excess of an installment that is
due hereunder and Lender shall apply such amount to the next maturing
installment or installments. Payment of amounts in excess of the installment
that is due or installments prior to the due date thereof shall not be treated
as a prepayment or result in a change to either the total number of installments
or the total sum of all installments payable under this Note.

The following shall constitute an Event of Default hereunder: (a) failure to pay
any installment hereunder when due; (b) the occurrence of an event of default as
defined in any security agreement or mortgage securing this Note; (c) the
commencement of any bankruptcy or insolvency proceedings by or against the
undersigned or any guarantor of this Note; and (d) any indebtedness the
undersigned may now or hereafter owe to Lender or any affiliate thereof shall be
accelerated following a default thereunder or, if any such indebtedness is
payable on demand, payment thereof shall be demanded. Upon the occurrence of an
Event of Default, Lender may do any one or more of the following as it may
elect: (i) upon written notice to the undersigned, declare the entire unpaid
balance of the Note to be immediately due and payable, and the same (less
unearned interest computed using the simple interest method as if this Note had
been paid in full on the date it became due and payable) shall thereupon be and
become immediately due and payable: (ii) exercise any one or more of the rights
and remedies available to it under any security agreement or mortgage securing
this Note or under any other agreement or by law.

           THIS AGREEMENT INCLUDES THE TERMS ON THE ATTACHED PAGE(S).

IN WITNESS WHEREOF the Debtor has signed this Agreement as of the date first
above written.

Meadow Valley Contractors, Inc.

Debtor

By /s/ Clinton Tryon
   -----------------------------

Title Sec./Treas. 5/25/2004

<PAGE>

The undersigned hereby waives presentment, notice of dishonor, and protest. The
undersigned agrees to pay all costs of collection of this Note, including
reasonable attorneys' fees. The holder hereof may change the terms of payment of
the Note by extension, renewal or otherwise, and release any security for, or
party to, this Note and such action shall not release any accommodation maker,
endorser, or guarantor from liability on this Note.

Notwithstanding anything to the contrary contained herein, if the rate of
interest, late payment fee, prepayment premium or any other charges or fees due
hereunder are determined by a court of competent jurisdiction to be usurious,
then said interest rate, fees and/or charges shall be reduced to the maximum
amount permissible under applicable law and any such excess amounts shall be
applied towards the reduction of the principal balance of this Note.

This Note shall be construed and enforced in accordance with, and the rights of
the parties shall be governed by, the laws of the State of Minnesota without
regard to conflicts of law rules.

If this Note is signed by more than one person as Debtor, then the term "Debtor"
shall refer to each of them separately and to all of them jointly, and each such
person shall be liable hereunder individually in full and jointly with the
others.

                                                             Initials___________

Page 2 of 2: PROMPP<PAGE>
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                                                                  EXHIBIT 10.269

                                 PROMISSORY NOTE

<TABLE>
<CAPTION>
 PRINCIPAL   LOAN DATE    MATURITY   LOAN NO  CALL/COLL  ACCOUNT  OFFICER  INITIALS
<S>          <C>         <C>         <C>      <C>        <C>      <C>      <C>
$575,250.00  04-16-2004  04-16-2009    9002              7326653   52629
</TABLE>

  References in the shaded area are for Lender's use only and do not limit the
         applicability of this document to any particular loan or item.
Any item above containing "***" has been omitted due to text length limitations.

BORROWER:  READY MIX, INC.                  LENDER: NEVADA STATE BANK
           3430 E. FLAMINGO RD., SUITE 100          CORPORATE LENDING DEPARTMENT
           LAS VEGAS, NV 89121                      750 E. WARM SPRINGS ROAD
                                                    LAS VEGAS, NV 89119

<TABLE>
<S>                             <C>                       <C>
PRINCIPAL AMOUNT:$575,250.00    INTEREST RATE: 6.125%     DATE OF NOTE: APRIL 16, 2004
</TABLE>

PROMISE TO PAY. READY MIX, INC. ("BORROWER") PROMISES TO PAY TO NEVADA STATE
BANK ("LENDER"), OR ORDER, IN LAWFUL MONEY OF THE UNITED STATES OF AMERICA, THE
PRINCIPAL AMOUNT OF FIVE HUNDRED SEVENTY-FIVE THOUSAND TWO HUNDRED FIFTY &
00/100 DOLLARS ($575,250.00), TOGETHER WITH INTEREST AT THE RATE OF 6.125% PER
ANNUM ON THE UNPAID PRINCIPAL BALANCE FROM APRIL 16, 2004, UNTIL PAID IN FULL.

PAYMENT. BORROWER WILL PAY THIS LOAN IN 59 REGULAR PAYMENTS OF $4,921.15 EACH
AND ONE IRREGULAR LAST PAYMENT ESTIMATED AT $443,902.12. BORROWER'S FIRST
PAYMENT IS DUE MAY 16, 2004, AND ALL SUBSEQUENT PAYMENTS ARE DUE ON THE SAME DAY
OF EACH MONTH AFTER THAT. BORROWER'S FINAL PAYMENT WILL BE DUE ON APRIL 16,
2009, AND WILL BE FOR ALL PRINCIPAL AND ALL ACCRUED INTEREST NOT YET PAID.
PAYMENTS INCLUDE PRINCIPAL AND INTEREST. UNLESS OTHERWISE AGREED OR REQUIRED BY
APPLICABLE LAW, PAYMENTS WILL BE APPLIED FIRST TO ANY UNPAID COLLECTION COSTS;
THEN TO ANY LATE CHARGES; THEN TO ANY ACCRUED UNPAID INTEREST; AND THEN TO
PRINCIPAL. THE ANNUAL INTEREST RATE FOR THIS NOTE IS COMPUTED ON A 365/360
BASIS; THAT IS, BY APPLYING THE RATIO OF THE ANNUAL INTEREST RATE OVER A YEAR OF
360 DAYS, MULTIPLIED BY THE OUTSTANDING PRINCIPAL BALANCE, MULTIPLIED BY THE
ACTUAL NUMBER OF DAYS THE PRINCIPAL BALANCE IS OUTSTANDING. BORROWER WILL PAY
LENDER AT LENDER'S ADDRESS SHOWN ABOVE OR AT SUCH OTHER PLACE AS LENDER MAY
DESIGNATE IN WRITING.

PREPAYMENT PENALTY; MINIMUM INTEREST CHARGE. Borrower agrees that all loan fees
and other prepaid finance charges are earned fully as of the date of the loan
and will not be subject to refund upon early payment (whether voluntary or as a
result of default), except as otherwise required by law. In any event, even upon
full prepayment of this Note, Borrower understands that Lender is entitled to a
MINIMUM INTEREST CHARGE OF $50.00. UPON PREPAYMENT OF THIS NOTE, LENDER IS
ENTITLED TO THE FOLLOWING PREPAYMENT PENALTY: IN THE EVENT THE LOAN IS PREPAID
WITHIN THE FIRST FIVE YEARS OF EXECUTION OF THE PROMISSORY NOTE, BORROWER SHALL
PAY BANK A PREPAYMENT PENALTY AS FOLLOWS:

PREPAYMENT WITH THE 1ST YEAR - 5% OF THE PRINCIPAL BALANCE
PREPAYMENT WITH THE 2ND YEAR - 4% OF THE PRINCIPAL BALANCE
PREPAYMENT WITH THE 3RD YEAR - 3% OF THE PRINCIPAL BALANCE
PREPAYMENT WITH THE 4TH YEAR - 2% OF THE PRINCIPAL BALANCE
PREPAYMENT WITH THE 5TH YEAR - 1% OF THE PRINCIPAL BALANCE

AFTER THE 5TH YEAR FROM EXECUTION OF THE PROMISSORY NOTE, NO PREPAYMENT PENALTY
WILL BE ASSESSED. PREPAYMENTS WILL BE APPLIED TO THE LAST SUMS FALLING DUE.
Other than Borrower's obligation to pay any minimum interest charge and
prepayment penalty, Borrower may pay all or a portion of the amount owed earlier
than it is due. Early payments will not, unless agreed to by Lender in writing,
relieve Borrower of Borrower's obligation to continue to make payments under the
payment schedule. Rather, early payments will reduce the principal balance due
and may result in Borrower's making fewer payments. Borrower agrees not to send
Lender payments marked "paid in full", "without recourse", or similar language.
If Borrower sends such a payment, Lender may accept it without losing any of
Lender's rights under this Note, and Borrower will remain obligated to pay any
further amount owed to Lender. All written communications concerning disputed
amounts, including any check or other payment instrument that indicates that the
payment constitutes "payment in full" of the amount owed or that is tendered
with other conditions or limitations or as full satisfaction of a disputed
amount must be mailed or delivered to: Nevada State Bank, Commercial Loan
Servicing Department 3800, P. 0. Box 990 Las Vegas, NV 89125-0990.

LATE CHARGE. If a payment is 10 days or more late, Borrower will be charged
5.000% OF THE REGULARLY SCHEDULED PAYMENT OR $25.00, WHICHEVER IS GREATER.

INTEREST AFTER DEFAULT. Upon default, including failure to pay upon final
maturity, Lender, at its option, may, if permitted under applicable law,
increase the interest rate on this Note 3.000 percentage points. The interest
rate will not exceed the maximum rate permitted by applicable law.

DEFAULT. Each of the following shall constitute an event of default ("Event of
Default") under this Note:

      PAYMENT DEFAULT. Borrower fails to make any payment when due under this
      Note.

      OTHER DEFAULTS. Borrower fails to comply with or to perform any other
      term, obligation, covenant or condition contained in this Note or in any
      of the related documents or to comply with or to perform any term,
      obligation, covenant or condition contained in any other agreement between
      Lender and Borrower.

      DEFAULT IN FAVOR OF THIRD PARTIES. Borrower or any Grantor defaults under
      any loan, extension of credit, security agreement, purchase or sales
      agreement, or any other agreement, in favor of any other creditor or
      person that may materially affect any of Borrower's property or Borrower's
      ability to repay this Note or perform Borrower's obligations under this
      Note or any of the related documents.

      FALSE STATEMENTS. Any warranty, representation or statement made or
      furnished to Lender by Borrower or on Borrower's behalf under this Note or
      the related documents is false or misleading in any material respect,
      either now or at the time made or furnished or becomes false or misleading
      at any time thereafter.

      INSOLVENCY. The dissolution or termination of Borrower's existence as a
      going business, the insolvency of Borrower, the appointment of a receiver
      for any part of Borrower's property, any assignment for the benefit of
      creditors, any type of creditor workout, or the commencement of any
      proceeding under any bankruptcy or insolvency laws by or against Borrower.

      CREDITOR OR FORFEITURE PROCEEDINGS. Commencement of foreclosure or
      forfeiture proceedings, whether by judicial proceeding, self-help,
      repossession or any other method, by any creditor of Borrower or by any
      governmental agency against any collateral securing the loan. This
      includes a garnishment of any of Borrower's accounts, including deposit
      accounts, with Lender. However, this Event of Default shall not apply if
      there is a good faith dispute by Borrower as to the validity or
      reasonableness of the claim which is the basis of the creditor or
      forfeiture proceeding and if Borrower gives Lender written notice of the
      creditor or forfeiture proceeding and deposits with Lender monies or a
      surety bond for the creditor or forfeiture proceeding, in an amount
      determined by Lender, in its sole discretion, as being an adequate reserve
      or bond for the dispute.

      EVENTS AFFECTING GUARANTOR. Any of the preceding events occurs with
      respect to any Guarantor of any of the indebtedness or any Guarantor dies
      or becomes incompetent, or revokes or disputes the validity of, or
      liability under, any guaranty of the indebtedness evidenced by this Note.
      In the event of a death, Lender, at its option, may, but shall not be
      required to, permit the Guarantor's estate to assume unconditionally the
      obligations arising under the guaranty in a manner satisfactory to Lender,
      and, in doing so, cure any Event of Default.

      CHANGE IN OWNERSHIP. Any change in ownership of twenty-five percent (25%)
      or more of the common stock of Borrower.

      ADVERSE CHANGE. A material adverse change occurs in Borrower's financial
      condition, or Lender believes the prospect of payment or performance of
      this Note is impaired.

      CURE PROVISIONS. If any default, other than a default in payment is
      curable and if Borrower has not been given a notice of a breach of the
      same provision of this Note within the preceding twelve (12) months, it
      may be cured (and no event of default will have occurred) if Borrower,
      after receiving written notice from Lender demanding cure of such default:
      (1) cures the default within ten (10) days; or (2) if the cure requires
      more than ten (10) days, immediately initiates steps which Lender deems
      in Lender's sole discretion to be sufficient to cure the default and
      thereafter continues and completes all reasonable and necessary steps
      sufficient to produce compliance as soon as reasonably practical.

LENDER'S RIGHTS. Upon default, Lender may declare the entire unpaid principal
balance on this Note and all accrued unpaid interest immediately due, and then
Borrower will pay that amount.

ATTORNEYS' FEES; EXPENSES. Lender may hire or pay someone else to help collect
this Note if Borrower does not pay. Borrower will pay Lender that amount. This
includes, subject to any limits under applicable law, Lender's attorneys, fees
and Lender's legal expenses, whether or not there is a lawsuit, including
attorneys' fees, expenses for bankruptcy proceedings (including efforts to
modify or vacate any automatic stay or injunction), and appeals. If not
prohibited by applicable law, Borrower also will pay any court costs, in
addition to all other sums provided by law.

GOVERNING LAW. THIS NOTE WILL BE GOVERNED BY, CONSTRUED AND ENFORCED IN
ACCORDANCE WITH FEDERAL LAW AND THE LAWS OF THE STATE OF NEVADA. THIS NOTE HAS
BEEN ACCEPTED BY LENDER IN THE STATE OF NEVADA.

<PAGE>

                                 PROMISSORY NOTE
LOAN NO: 9002                      (CONTINUED)                            PAGE 2

CHOICE OF VENUE. If there is a lawsuit, Borrower agrees upon Lender's request to
submit to the jurisdiction of the courts of Clark County, State of Nevada.
(INITIAL HERE C.T.)

DISHONORED ITEM FEE. Borrower will pay a fee to Lender of $20.00 if Borrower
makes a payment on Borrower's loan and the check or preauthorized charge with
which Borrower pays is later dishonored.

RIGHT OF SETOFF. To the extent permitted by applicable law, Lender reserves a
right of setoff in all Borrower's accounts with Lender (whether checking,
savings, or some other account). This includes all accounts Borrower holds
jointly with someone else and all accounts Borrower may open in the future.
However, this does not include any IRA or Keogh accounts, or any trust accounts
for which setoff would be prohibited by law. Borrower authorizes Lender, to the
extent permitted by applicable law, to charge or setoff all sums owing on the
indebtedness against any and all such accounts, and, at Lender's option, to
administratively freeze all such accounts to allow Lender to protect Lender's
charge and setoff rights provided in this paragraph.

COLLATERAL. Borrower acknowledges this Note is secured by a Deed of Trust of
even date.

ARBITRATION DISCLOSURES.

      1.    ARBITRATION IS FINAL AND BINDING ON THE PARTIES AND SUBJECT TO ONLY
            VERY LIMITED REVIEW BY A COURT.

      2.    IN ARBITRATION THE PARTIES ARE WAIVING THEIR RIGHT TO LITIGATE IN
            COURT, INCLUDING THEIR RIGHT TO A JURY TRIAL.

      3.    DISCOVERY IN ARBITRATION IS MORE LIMITED THAN DISCOVERY IN COURT.

      4.    ARBITRATORS ARE NOT REQUIRED TO INCLUDE FACTUAL FINDINGS OR LEGAL
            REASONING IN THEIR AWARDS. THE RIGHT TO APPEAL OR SEEK MODIFICATION
            OF ARBITRATORS' RULINGS IS VERY LIMITED.

      5.    A PANEL OF ARBITRATORS MIGHT INCLUDE AN ARBITRATOR WHO IS OR WAS
            AFFILIATED WITH THE BANKING INDUSTRY.

      6.    ARBITRATION WILL APPLY TO ALL DISPUTES BETWEEN THE PARTIES, NOT JUST
            THOSE CONCERNING THE AGREEMENT.

      7.    IF YOU HAVE QUESTIONS ABOUT ARBITRATION, CONSULT YOUR ATTORNEY OR
            THE AMERICAN ARBITRATION ASSOCIATION.

      (a) Any claim or controversy ("Dispute") between or among the parties and
      their employees, agents, affiliates, and assigns, including, but not
      limited to, Disputes arising out of or relating to this agreement, this
      arbitration provision ("arbitration clause"), or any related agreements or
      instruments relating hereto or delivered in connection herewith ("Related
      Agreements"), and including, but not limited to, a Dispute based on or
      arising from an alleged tort, shall at the request of any party be
      resolved by binding arbitration in accordance with the applicable
      arbitration rules of the American Arbitration Association (the
      "Administrator"). The provisions of this arbitration clause shall survive
      any termination, amendment, or expiration of this agreement or Related
      Agreements. The provisions of this arbitration clause shall supersede any
      prior arbitration agreement between or among the parties.

      (b) The arbitration proceedings shall be conducted in a city mutually
      agreed by the parties. Absent such an agreement, arbitration will be
      conducted in Las Vegas, Nevada or such other place as may be determined by
      the Administrator. The Administrator and the arbitrator(s) shall have the
      authority to the extent practicable to take any action to require the
      arbitration proceeding to be completed and the arbitrator(s)' award issued
      within 150 days of the filing of the Dispute with the Administrator. The
      arbitrator(s) shall have the authority to impose sanctions on any party
      that fails to comply with time periods imposed by the Administrator or the
      arbitrator(s), including the sanction of summarily dismissing any Dispute
      or defense with prejudice. The arbitrator(s) shall have the authority to
      resolve any Dispute regarding the terms of this agreement, this
      arbitration clause, or Related Agreements, including any claim or
      controversy regarding the arbitrability of any Dispute. All limitations
      periods applicable to any Dispute or defense, whether by statute or
      agreement, shall apply to any arbitration proceeding hereunder and the
      arbitrator(s) shall have the authority to decide whether any Dispute or
      defense is barred by a limitations period and, if so, to summarily enter
      an award dismissing any Dispute or defense on that basis. The doctrines of
      compulsory counterclaim, res judicata, and collateral estoppel shall apply
      to any arbitration proceeding hereunder so that a party must state as a
      counterclaim in the arbitration proceeding any claim or controversy which
      arises out of the transaction or occurrence that is the subject matter of
      the Dispute. The arbitrator(s) may in the arbitrator(s)' discretion and at
      the request of any party: (1) consolidate in a single arbitration
      proceeding any other claim arising out of the same transaction involving
      another party to that transaction that is bound by an arbitration clause
      with Lender, such as borrowers, guarantors, sureties, and owners of
      collateral; and (2) consolidate or administer multiple arbitration claims
      or controversies as a class action in accordance with Rule 23 of the
      Federal Rules of Civil Procedure.

      (c) The arbitrator(s) shall be selected in accordance with the rules of
      the Administrator from panels maintained by the Administrator. A single
      arbitrator shall have expertise in the subject matter of the Dispute.
      Where three arbitrators conduct an arbitration proceeding, the Dispute
      shall be decided by a majority vote of the three arbitrators, at least one
      of whom must have expertise in the subject matter of the Dispute and at
      least one of whom must be a practicing attorney. The arbitrator(s) shall
      award to the prevailing party recovery of all costs and fees (including
      attorneys' fees and costs, arbitration administration fees and costs, and
      arbitrator(s)' fees). The arbitrator(s), either during the pendency of the
      arbitration proceeding or as part of the arbitration award, also may grant
      provisional or ancillary remedies including but not limited to an award of
      injunctive relief, foreclosure, sequestration, attachment, replevin,
      garnishment, or the appointment of a receiver.

      (d) Judgement upon an arbitration award may be entered in any court having
      jurisdiction, subject to the following limitation: the arbitration award
      is binding upon the parties only if the amount does not exceed Four
      Million Dollars ($4,000,000.00); if the award exceeds that limit, either
      party may demand the right to a court trial. Such a demand must be filed
      with the Administrator within thirty (30) days following the date of the
      arbitration award; if such a demand is not made with that time period, the
      amount of the arbitration award shall be binding. The computation of the
      total amount of an arbitration award shall include amounts awarded for
      attorneys' fees and costs, arbitration administration fees and costs, and
      arbitrator(s)' fees.

      (e) No provision of this arbitration clause, nor the exercise of any
      rights hereunder, shall limit the right of any party to: (1) judicially or
      non-judicially foreclose against any real or personal property collateral
      or other security; (2) exercise self-help remedies, including but not
      limited to repossession and setoff rights; or (3) obtain from a court
      having jurisdiction thereover any provisional or ancillary remedies
      including but not limited to injunctive relief, foreclosure,
      sequestration, attachment, replevin, garnishment, or the appointment of a
      receiver. Such rights can be exercised at any time, before or after
      initiation of an arbitration proceeding, except to the extent such action
      is contrary to the arbitration award. The exercise of such rights shall
      not constitute a waiver of the right to submit any Dispute to arbitration,
      and any claim or controversy related to the exercise of such rights shall
      be a Dispute to be resolved under the provisions of this arbitration
      clause. Any party may initiate arbitration with the Administrator. If any
      party desires to arbitrate a Dispute asserted against such party in a
      complaint, counterclaim, cross-claim, or third-party complaint thereto, or
      in an answer or other reply to any such pleading, such party must make an
      appropriate motion to the trial court seeking to compel arbitration, which
      motion must be filed with the court within 45 days of service of the
      pleading, or amendment thereto, setting forth such Dispute. If arbitration
      is compelled after commencement of litigation of a Dispute, the party
      obtaining an order compelling arbitration shall commence arbitration and
      pay the Administrator's filing fees and costs within 45 days of entry of
      such order. Failure to do so shall constitute an agreement to proceed with
      litigation and waiver of the right to arbitrate. In any arbitration
      commenced by a consumer regarding a consumer Dispute, Lender shall pay one
      half of the Administrator's filing fee, up to $250.

      (f) Notwithstanding the applicability of any other law to this agreement,
      the arbitration clause, or Related Agreements between or among the
      parties, the Federal Arbitration Act, 9 U.S.C. Section 1 et seq., shall
      apply to the construction and interpretation of this arbitration clause.
      If any provision of this arbitration clause should be determined to be
      unenforceable, all other provisions of this arbitration clause shall
      remain in full force and effect.

SUCCESSOR INTERESTS. The terms of this Note shall be binding upon Borrower, and
upon Borrower's heirs, personal representatives, successors and assigns, and
shall inure to the benefit of Lender and its successors and assigns.

NOTIFY US OF INACCURATE INFORMATION WE REPORT TO CONSUMER REPORTING AGENCIES.
Please notify us if we report any inaccurate information about your account(s)
to a consumer reporting agency. Your written notice describing the specific
inaccuracy(ies) should be sent to us at the following address: Nevada State Bank
A Subsidiary of Zions Bancorporation P.O. Box 990 Las Vegas, NV 89125-0990

GENERAL PROVISIONS. Lender may delay or forgo enforcing any of its rights or
remedies under this Note without losing them. Borrower and any other person who
signs, guarantees or endorses this Note, to the extent allowed by law, waive
presentment, demand for payment, and notice of dishonor. Upon any change in the
terms of this Note, and unless otherwise expressly stated in writing, no party
who signs this Note, whether as maker, guarantor, accommodation maker or
endorser, shall be released from liability. All such parties agree that Lender
may renew or extend (repeatedly and for any length of time) this loan or release
any party or guarantor or collateral; or impair, fail to realize upon or
perfect Lender's security interest in the collateral; and take any other action
deemed necessary by Lender without the consent of or notice to anyone. All such
parties also agree that Lender may modify this loan without the consent of or
notice to anyone other than the party with whom the modification is made. The
obligations under this Note are joint and several.

<PAGE>
                                 PROMISSORY NOTE
LOAN NO: 9002                      (CONTINUED)                            PAGE 3

PRIOR TO SIGNING THIS NOTE, BORROWER READ AND UNDERSTOOD ALL THE PROVISIONS OF
THIS NOTE. BORROWER AGREES TO THE TERMS OF THE NOTE.

BORROWER ACKNOWLEDGES RECEIPT OF A COMPLETED COPY OF THIS PROMISSORY NOTE.

BORROWER:

READY MIX, INC.

BY: /s/ CLINTON LEVI TRYON
    ----------------------------------------------
    CLINTON LEVI TRYON, TREASURER OF READY MIX INC.

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