EXHIBIT 4(c)





                  Prepared by: IES Utilities Inc., __________,
            200 First St. SE, Cedar Rapids, IA 52401, (319) 398-4505

================================================================================



                               IES UTILITIES INC.
            (formerly known as Iowa Electric Light and Power Company)



                                       TO


                       THE FIRST NATIONAL BANK OF CHICAGO


                                   as Trustee



                                 --------------



                          ______ Supplemental Indenture

                              Dated as of ________

                                 --------------


                                       TO


                     INDENTURE OF MORTGAGE and DEED OF TRUST

                          Dated as of September 1, 1993


- -------------------------------------------------------------------------------





                  ______  SUPPLEMENTAL  INDENTURE,  dated  as  of  _______  (the
"______  Supplemental  Indenture"),  made  by and  between  IES  UTILITIES  INC.
(formerly  known as Iowa  Electric  Light  and  Power  Company),  a  corporation
organized and existing under the laws of the State of Iowa (the "Company"),  and
THE FIRST NATIONAL BANK OF CHICAGO, a national banking association organized and
existing  under the laws of the United  States of America  (the  "Trustee"),  as
Trustee  under the Indenture of Mortgage and Deed of Trust dated as of September
1, 1993, hereinafter mentioned.

                  WHEREAS, the Company has heretofore executed and delivered its
Indenture of Mortgage  and Deed of Trust dated as of  September 1, 1993,  to the
Trustee,  for  the  security  of the  securities  of the  Company  to be  issued
thereunder (the "Collateral Trust Bonds" or "Bonds"), and the said Indenture has
been  supplemented  by [five]  supplemental  indentures,  dated as of October 1,
1993,  November 1, 1993,  March 1, 1995,  September 1, 1996,  April 1, 1997, and
[__________],  which Indenture as so supplemented and to be hereby  supplemented
is hereinafter referred to as the "Indenture"; and

                  WHEREAS,  the Company desires to create a series of Collateral
Trust Bonds to be issued under the  Indenture,  to be known as Collateral  Trust
Bonds,  ___% Series Due ____ (the "Collateral Trust Bonds of the ____% Series");
and

                  WHEREAS,  the  Company,  in the  exercise  of the  powers  and
authority  conferred  upon  and  reserved  to it  under  the  provisions  of the
Indenture,  has duly resolved and determined to make, execute and deliver to the
Trustee a ______  Supplemental  Indenture  in the form  hereof for the  purposes
herein provided; and

                  WHEREAS,  pursuant  to  Section  1401  of the  Indenture,  the
Company may from time to time  execute one or more  supplemental  indentures  in
order to better assure, convey and confirm unto the Trustee any property subject
to the Lien of the Indenture; and

                  WHEREAS, the Company desires to so assure,  convey and confirm
property described in Exhibit A to this Supplemental Indenture; and

                  WHEREAS,  all  conditions and  requirements  necessary to make
this ______  Supplemental  Indenture a valid,  binding and legal instrument have
been done,  performed and fulfilled,  and the execution and delivery hereof have
been in all respects duly authorized;

                  NOW, THEREFORE, THIS INDENTURE WITNESSETH:

                  THAT IES UTILITIES INC., in  consideration of the purchase and
ownership  from time to time of the Bonds  created  in the  ______  Supplemental
Indenture  and the  service  by the  Trustee,  and  its  successors,  under  the
Indenture  and of One  Dollar to it duly paid by the  Trustee  at or before  the
ensealing  and  delivery  of these  presents,  the  receipt  whereof  is  hereby
acknowledged,  hereby  covenants  and  agrees  to and with the  Trustee  and its
successors in the trust under the Indenture,  for the benefit of those who shall
hold the Bonds as follows:

                                    ARTICLE I

            DESCRIPTION OF COLLATERAL TRUST BONDS OF THE ___% SERIES

                  SECTION 1. The Company hereby creates a new series of Bonds to
be known as "Collateral  Trust Bonds of the ___% Series." The  Collateral  Trust
Bonds of the ___% Series  shall be  executed,  authenticated  and  delivered  in
accordance  with the provisions of, and shall in all respects be subject to, all
of the terms,  conditions and covenants of the Indenture,  as  supplemented  and
modified.

                  The  commencement  of  the  first  interest  period  shall  be
__________.  The  Collateral  Trust  Bonds  of  the  ___%  Series  shall  mature
__________,  and shall  bear  interest  at the rate of ___% per  annum,  payable
semi-annually  on the 1st day of _____  and the 1st day of  _____ in each  year,
commencing on _________.  The person in whose name any of the  Collateral  Trust
Bonds of the ___%  Series is  registered  at the close of business on any record
date (as hereinafter defined) with respect to any interest payment date shall be
entitled  to  receive  the  interest  payable  on  such  interest  payment  date
notwithstanding  the  cancellation  of such  Collateral  Trust Bonds of the ___%
Series upon any transfer or exchange  subsequent to the record date and prior to
such interest  payment date;  provided,  however,  that if and to the extent the
Company  shall  default in the  payment  of the  interest  due on such  interest
payment date,  such defaulted  interest shall be paid as provided in Section 307
of the Indenture.

                  The term "record date" as used in this Section with respect to
any  interest  payment date shall mean the _____ 15 or _____ 15, as the case may
be, next preceding the semi-annual  interest  payment date, or, if such _____ 15
or _____ 15 shall be a legal holiday or a day on which banking  institutions  in
the Borough of Manhattan, the City of New York, State of New York or in the City
of Chicago,  State of Illinois,  are  authorized by law to close,  then the next
preceding  day  which  shall  not be a  legal  holiday  or a day on  which  such
institutions are so authorized to close.

                  SECTION 2. The Collateral Trust Bonds of the ___% Series shall
be issued  only as  registered  Bonds  without  coupons of the  denomination  of
$1,000, or any integral multiple of $1,000,  appropriately numbered.  Subject to
the terms and conditions set forth in the Indenture,  the Collateral Trust Bonds
of the ___% Series may be exchanged for one or more new  Collateral  Trust Bonds
of the ___% Series or other  authorized  denominations,  for the same  aggregate
principal amount,  upon surrender  thereof,  to the agency of the Company in the
City of Chicago, Illinois, or, at the option of the holder, at the agency of the
Company in the City of New York.

                  Collateral  Trust Bonds of the ___% Series may be exchanged or
transferred  without  expense to the  registered  owner thereof  except that any
taxes or other governmental  charges that may be imposed in connection with such
transfer or  exchange  shall be paid by the  registered  owner  requesting  such
transfer or exchange as a condition precedent to the exercise of such privilege.

                  SECTION 3. Except as otherwise  provided in this Section,  the
registered  owner of all Collateral Trust Bonds of the ___% Series shall be CEDE
& Co., as nominee of The Depository Trust Company  ("DTC").  Payment of interest
for any Collateral  Trust Bonds of the ___% Series  registered as of each record
date in the name of CEDE & Co. shall be made by wire  transfer to the account of
CEDE & Co. on the interest  payment date for such Collateral  Trust Bonds of the
___%  Series at the address  indicated  on the record date for CEDE & Co. in the
registration books of the Company kept by Trustee, as registrar.

                  The Collateral  Trust Bonds of the ___% Series shall initially
be issued in the form of one or more  fully  registered  global  bonds  ("Global
Bonds") which will have an aggregate  principal  amount equal to the  Collateral
Trust Bonds of the ___% Series represented thereby.  Upon initial issuance,  the
ownership of the  Collateral  Trust Bonds of the ___% Series shall be registered
in the registration books of the Company kept by the Trustee in the name of CEDE
& Co.,  as nominee of DTC.  The  Trustee  and the  Company may treat DTC (or its
nominee) as the sole and exclusive  owner of the  Collateral  Trust Bonds of the
___% Series  registered in its name for the purposes of payment of the principal
of,  premium,  if any, or interest  on such  Collateral  Trust Bonds of the ___%
Series,  giving any notice  permitted or required to be given to Holders herein,
registering  the  transfer of such  Collateral  Trust Bonds of the ___%  Series,
obtaining  any consent or other  action to be taken by Holders and for all other
purposes  whatsoever;  and neither the Trustee nor the Company shall be affected
by any notice to the  contrary.  Neither the Trustee nor the Company  shall have
any  responsibility or obligation to any DTC participant,  any Person claiming a
beneficiary  ownership  interest  in  Collateral  Trust Bonds of the ___% Series
registered  in the  name  of  CEDE  & Co.  under  or  through  DTC  or  any  DTC
participant, or any other Person which is not shown on the registration books of
the Company  kept by the Trustee as being a Holder with  respect to the accuracy
of any records maintained by DTC, CEDE & Co. or any DTC participant; the payment
by DTC or any DTC  participant to any beneficial  owner of any amount in respect
of the principal of, premium,  if any, or interest on the Collateral Trust Bonds
of the ___% Series registered in the name of CEDE & Co.; the delivery to any DTC
participant or any beneficial owner of any notice which is permitted or required
to be given to Holders  herein;  the selection by DTC or any DTC  participant of
any  Person  to  receive  payment  in the  event  of a  partial  payment  of any
Collateral Trust Bonds of the ___% Series  registered in the name of CEDE & Co.;
or any consent  given or other action  taken by DTC as Holder.  The Paying Agent
shall pay all  principal  of,  premium,  if any, and interest on any  Collateral
Trust Bonds of the ___% Series  registered in the name of CEDE & Co., only to or
upon the order of CEDE & Co., as nominee of DTC, and all such payments  shall be
valid and effective to fully  satisfy and  discharge  the Company's  obligations
with  respect  to the  principal  of,  premium,  if any,  and  interest  on such
Collateral  Trust  Bonds of the ___%  Series to the extent of the sum or sums so
paid.  Upon delivery by DTC to the Trustee of written  notice to the effect that
DTC had  determined  to  substitute  a new  nominee in place of CEDE & Co.,  and
subject to the provisions herein with respect to record dates, the words "CEDE &
Co." herein shall refer to such new nominee of DTC.

                  A  Global   Bond   shall  be   exchangeable   for   definitive
certificates  registered  in the names of persons  other than DTC or its nominee
only if (i) DTC  notifies the Company that it is unwilling or unable to continue
as a depositary for such Global Bond and no successor depositary shall have been
appointed, or if at any time DTC ceases to be a clearing agency registered under
the  Securities  Exchange  Act of 1934,  at a time when DTC is required to be so
registered to act as such  depositary,  (ii) the Company in its sole  discretion
determines  that such Global Bond shall be so  exchangeable or (iii) there shall
have  occurred  and be  continuing  an  Event of  Default  with  respect  to the
Collateral Trust Bonds of the ___% Series.  In any such event, the Trustee shall
issue,  register  the  transfer  of  and  exchange  definitive  certificates  as
requested by DTC in appropriate amounts and the Company and the Trustee shall be
obligated  to  deliver   definitive   certificates.   In  the  event  definitive
certificates  are issued to Holders other than DTC, the provisions  herein shall
apply to, among other things, the registration, transfer of and exchange of such
certificates  and the method of payment of principal  of,  premium,  if any, and
interest on such certificates. Whenever DTC requests the Company and the Trustee
to do so,  the  Trustee  and the  Company  will  cooperate  with  DTC in  taking
appropriate  action after  reasonable  notice (i) to make  available one or more
separate  certificates  evidencing the Collateral Trust Bonds of the ___% Series
registered in the name of CEDE & Co., to any DTC participant  having  Collateral
Trust  Bonds of the ___%  Series  credited to its DTC account or (ii) to arrange
for another bonds depository to maintain custody of certificates evidencing such
Collateral Trust Bonds of the ___% Series.

                  So long as any  Collateral  Trust Bonds of the ___% Series are
registered  in the name of CEDE & Co.,  as nominee  of DTC,  all  payments  with
respect to the principal of,  premium,  if any, and interest on such  Collateral
Trust Bonds of the ___% Series and all notices,  with respect to such Collateral
Trust Bonds of the ___% Series shall be made and given to DTC as provided in the
Letter of Representations dated __________.

                  In  connection  with any notice or other  communication  to be
provided to Holders by the Company or the Trustee with respect to any consent or
other action to be taken by Holders,  so long as any  Collateral  Trust Bonds of
the ___% Series are registered in the name of CEDE & Co., as nominee of DTC, the
Company or the Trustee,  as the case may be,  shall  establish a record date for
such  consent or other  action and give DTC notice of such  record date not less
than 15 calendar days in advance of such record date to the extent possible.

                  The   notice   requirements   set  forth  in  the   Letter  of
Representations  with respect to redemptions,  conversions and mandatory tenders
shall be effective  whenever the  Collateral  Trust Bonds of the ___% Series are
registered  in  the  name  of  DTC or its  nominee,  notwithstanding  any  other
provision  herein, to the extent such other provisions are incompatible with the
notice requirements set forth in the Letter of Representations.

                  SECTION 4. The  Collateral  Trust Bonds of the ___% Series and
the  Trustee's  Certificate  of  Authentication  shall be  substantially  in the
following forms respectively:


                             [FORM OF FACE OF BOND]

                        [FORM OF LEGEND FOR GLOBAL BOND]

Unless this  certificate  is presented by an  authorized  representative  of The
Depository Trust Company, a New York corporation ("DTC"), to Issuer or its agent
for registration of transfer, exchange or payment, and any certificate issued is
registered in the name of Cede & Co. or in such other name as is requested by an
authorized  representative  of DTC (and any  payment is made to Cede & Co. or to
such other entity as is requested by an authorized  representative  of DTC), ANY
TRANSFER,  PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON
IS WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an interest
herein.

                               IES UTILITIES INC.
                  COLLATERAL TRUST BOND, ___% SERIES DUE ____.


No. ________                                                         $_________
                                                              CUSIP ___________

                  IES UTILITIES INC., a corporation organized and existing under
the laws of the State of Iowa (the  "Company,"  which  term  shall  include  any
successor  corporation as defined in the Indenture hereinafter referred to), for
value  received,  hereby  promises to pay to  ______________,  or its registered
assigns,  the sum of _____________  ($_______)  dollars on the ___ day of _____,
____,  in any coin or currency of the United States of America which at the time
of payment is legal  tender for public and private  debts,  and to pay  interest
thereon in like coin or currency from ______ __, ____, payable semi-annually, on
the ___ day of ______ and ______ in each year,  commencing  _______ __, ____, at
the rate of ___% per annum,  until the Company's  obligation with respect to the
payment of such  principal  shall be  discharged  as provided  in the  Indenture
hereinafter  mentioned.  The  interest  so  payable  on any ___ day of ______ or
______ will,  subject to certain  exceptions  provided in the _____ Supplemental
Indenture  dated as of ______ __, ____, be paid to the person in whose name this
Collateral  Trust Bond is registered at the close of business on the immediately
preceding  ______ ____ or ______ ____,  as the case may be.  Except as otherwise
provided in the Indenture, any such interest not paid or duly provided for shall
forthwith  cease to be payable to such  person,  and shall either be paid to the
person in whose name this  Collateral  Trust Bond is  registered at the close of
business on a Special  Record Date for the payment of such  interest to be fixed
by the Trustee,  notice of which shall be given to holders of  Collateral  Trust
Bonds 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 Collateral  Trust Bonds of
this  Series  may be listed,  and upon such  notice as may be  required  by such
exchange,  all as more fully provided for in said Indenture.  Both principal of,
and  interest  on, this  Collateral  Trust Bond are payable at the agency of the
Company in the City of Chicago,  Illinois,  or, at the option of the holder,  at
the agency of the Company in the City of New York.

                  This  Collateral  Trust  Bond  shall  not be  entitled  to any
benefit  under the Indenture or any indenture  supplemental  thereto,  or become
valid or  obligatory  for any purpose,  until the form of  certificate  endorsed
hereon  shall  have been  signed by or on behalf of The First  National  Bank of
Chicago,  the Trustee under the Indenture,  or a successor trustee thereto under
the Indenture,  or by an  authenticating  agent duly appointed by the Trustee in
accordance with the terms of the Indenture.

                  The provisions of this Collateral  Trust Bond are continued on
the reverse hereof and such continued provisions shall for all purposes have the
same effect as though fully set forth at this place.

                  IN  WITNESS  WHEREOF,  IES  Utilities  Inc.  has  caused  this
Collateral Trust Bond to be signed  (manually or by facsimile  signature) in its
name by an Authorized  Executive Officer,  as defined in the Indenture,  and its
corporate  seal (or a  facsimile  thereof)  to be hereto  affixed  and  attested
(manually or by facsimile  signature) by an  Authorized  Executive  Officer,  as
defined in the Indenture.

Dated ________________                          IES UTILITIES INC.


                                                By
                                                  ----------------------------
                                                  Authorized Executive Officer

ATTEST:


- -----------------------------
Authorized Executive Officer

                [FORM OF TRUSTEE'S CERTIFICATE OF AUTHENTICATION]

                  This  is one of  the  Collateral  Trust  Bonds  of the  series
designated  therein  referred  to in the  within-mentioned  Indenture  and _____
Supplemental Indenture dated as of ______ __, ____.

                                                 THE FIRST NATIONAL BANK
                                                 OF CHICAGO, as Trustee


                                                 By
                                                   ----------------------
                                                   Authorized Officer






                            [FORM OF REVERSE OF BOND]

                               IES UTILITIES INC.
                  COLLATERAL TRUST BOND, ____% SERIES DUE ____

                  This Collateral  Trust Bond is one of a duly authorized  issue
of Collateral Trust Bonds of the Company in an aggregate  principal amount of up
to $________ of the series  hereinafter  specified,  all issued and to be issued
under and equally secured by an Indenture of Mortgage and Deed of Trust dated as
of  September  1, 1993,  executed by the Company to The First  National  Bank of
Chicago,  as Trustee (the  "Trustee"),  as  supplemented  by _____  supplemental
indentures,  (including a _____  Supplemental  Indenture  dated as of ______ __,
____),  each  executed by the Company to said  Trustee  (said  Indenture,  as so
supplemented,  being herein sometimes referred to as the "Indenture"),  to which
Indenture and all indentures supplemental thereto reference is hereby made for a
description  of the properties  mortgaged and pledged,  the nature and extent of
the security,  the rights of registered owners of the Collateral Trust Bonds and
of the Trustee in respect  thereof,  and the terms and conditions upon which the
Collateral  Trust Bonds are, and are to be, secured.  The Collateral Trust Bonds
may be issued in series,  for various  principal  sums,  may mature at different
times,  may bear interest at different  rates and may otherwise vary as provided
in the Indenture.  This Collateral  Trust Bond is one of a series  designated as
the "Collateral Trust Bonds, ____% Series Due ____" (the "Collateral Trust Bonds
of the ____% Series") of the Company,  in an aggregate principal amount of up to
$________,  issued under and secured by the Indenture and described in the _____
Supplemental  Indenture  thereto  dated  as  of  ______  __,  ____  (the  "_____
Supplemental Indenture") between the Company and the Trustee.

                  The  Collateral  Trust  Bonds of the ____%  Series will not be
redeemable prior to their maturity by the Company; provided,  however, that such
Bonds may be  redeemed  by the Company in whole at any time or in part from time
to time, up on at least 30 days notice, at the redemption price equal to 100% of
the principal  amount thereof,  plus accrued interest to the date of redemption,
through application of cash received by the Trustee as a result of properties of
the Company being taken by eminent domain or being sold to an entity  possessing
the power of eminent domain.

                  In case an Event of  Default,  as  defined  in the  Indenture,
shall occur, the principal of all the Collateral Trust Bonds of the ____% Series
at any such time  outstanding  under the Indenture may be declared or may become
due and  payable,  upon the  conditions  and in the  manner  and with the effect
provided in the Indenture.  The Indenture  provides that such declaration may be
rescinded under certain circumstances.

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

                  To the extent  permitted on the front hereof,  this Collateral
Trust Bond may be exchanged or  transferred  without  expense to the  registered
owner  hereof  except that any taxes or other  governmental  charges that may be
imposed  in  connection  with such  transfer  or  exchange  shall be paid by the
registered owner  requesting such transfer or exchange as a condition  precedent
to the exercise of such privilege.




                  Prior to due  presentment  of this  Collateral  Trust Bond 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 Collateral  Trust Bond is
registered as the absolute  owner hereof for all  purposes,  whether or not this
Collateral Trust Bond be overdue,  and neither the Company,  the Trustee nor any
such agent shall be affected by notice to the contrary.

                  As provided in the Indenture, no recourse shall be had for the
payment of the  principal of or premium,  if any, or interest on any  Collateral
Trust Bonds or any part thereof,  or for any claim based thereon or otherwise in
respect  thereof,  or of the  indebtedness  represented  thereby,  or  upon  any
obligation,  covenant or agreement under the Indenture, against, and no personal
liability  whatsoever  shall  attach to, or be  incurred  by, any  incorporator,
stockholder,  officer  or  director,  as such,  past,  present  or future of the
Company or of any  predecessor  or  successor  corporation  (either  directly or
through the  Company or a  predecessor  or  successor  corporation),  whether by
virtue  of any  constitutional  provision,  statute  or rule  of law,  or by the
enforcement of any assessment or penalty or otherwise; it being expressly agreed
and understood that the Indenture and all the Collateral  Trust Bonds are solely
corporate  obligations and that any such personal  liability is hereby expressly
waived and released as a condition of, and as part of the consideration for, the
execution of the Indenture and the issuance of the Collateral Trust Bonds.

                               [END OF BOND FORM]

                                   ARTICLE II

                         ISSUE OF COLLATERAL TRUST BONDS

                  SECTION  1.  Pursuant  to  the  terms  of  Section  401 of the
Indenture,  the Company hereby exercises the right to obtain the  authentication
of $__________ principal amount of Collateral Trust Bonds.

                  SECTION 2. Such Collateral  Trust Bonds of the ___% Series may
be  authenticated  and  delivered  prior to the filing for  recordation  of this
______ Supplemental Indenture.






                                   ARTICLE III

                                   REDEMPTION

                  The  Collateral  Trust  Bonds of the ___%  Series  will not be
redeemable prior to their maturity;  provided,  however,  that such Bonds may be
redeemed  in whole at any time or in part  from  time to time,  upon at least 30
days  notice,  at the  redemption  price equal to 100% of the  principal  amount
thereof, plus accrued interest to the date of redemption, through application of
cash  received by the  Trustee as a result of  properties  of the Company  being
taken by  eminent  domain  or being  sold to an entity  possessing  the power of
eminent domain.

                                   ARTICLE IV

                             DESCRIPTION OF PROPERTY

                  To secure the payment of the  principal of,  premium,  if any,
and interest,  if any, on all Collateral  Trust Bonds issued under the Indenture
and Outstanding  (as defined in the Indenture),  when payable in accordance with
the provisions thereof, and to secure the performance by the Company of, and its
compliance  with,  the covenants and  conditions of the  Indenture,  the Company
hereby grants, bargains, sells, conveys, assigns, transfers, mortgages, pledges,
sets over and confirms to the Trustee a security  interest in, all right,  title
and  interest of the Company in and to the  property  described  in Exhibit A to
this ______ Supplemental Indenture.

                  TO  HAVE  AND  TO  HOLD  all  said  property  hereby  granted,
bargained, sold, conveyed, assigned,  transferred,  mortgaged, pledged, set over
and confirmed,  or in which a security  interest has been granted by the Company
in this ______ Supplemental  Indenture,  unto the Trustee and its successors and
assigns forever,  but in trust  nevertheless upon the trusts,  for the purposes,
and  subject  to  all  the  exceptions  and  reservations,   terms,  conditions,
provisions  and   restrictions   of  the  Indenture,   and  for  the  equal  and
proportionate  benefit and  security  of all  present and future  holders of the
Collateral Trust Bonds,  without any preference,  priority or distinction of any
one  Collateral  Trust  Bond over any other  Collateral  Trust Bond by reason of
priority  in the  issue or  negotiation  thereof  or  otherwise,  except  as may
otherwise be expressly provided in the Indenture,  but subject,  however, to all
the conditions, agreements, covenants, exceptions, limitations, restrictions and
reservations  expressed or provided in the deeds or other  instruments of record
affecting the property, or any part or portion thereof,  insofar as the same are
at the time of execution hereof in force and effect and permitted by law.

                                    ARTICLE V

                                   THE TRUSTEE

                  The Trustee  hereby  accepts the trusts  hereby  declared  and
provided,  and agrees to perform the same upon the terms and  conditions  in the
Indenture set forth and upon the following terms and conditions:

                  The Trustee shall not be responsible in any manner  whatsoever
         for or in  respect  of the  validity  or  sufficiency  of  this  ______
         Supplemental  Indenture or the due  execution  hereof by the Company or
         for or in  respect  of the  recitals  contained  herein,  all of  which
         recitals  are made by the Company  solely.  In general,  each and every
         term and condition  contained in Article Eleven of the Indenture  shall
         apply to this Supplemental  Indenture with the same force and effect as
         if the  same  were  herein  set  forth in full,  with  such  omissions,
         variations and modifications  thereof as may be appropriate to make the
         same conform to this ______ Supplemental Indenture.

                                   ARTICLE VI

                            MISCELLANEOUS PROVISIONS

                  This  ______  Supplemental  Indenture  may  be  simultaneously
executed in any number of counterparts,  each of which when so executed shall be
deemed to be an original;  but such counterparts  shall together  constitute but
one and the same instrument.

                  IN WITNESS WHEREOF, the parties hereto have caused this ______
Supplemental Indenture to be duly executed, and their respective corporate seals
to be  hereunto  affixed  and  attested,  all as of the day and year first above
written.

                                               IES UTILITIES INC.


                                               By
                                                 ------------------------------

ATTEST:




- ------------------
                                               THE FIRST NATIONAL BANK OF
                                               CHICAGO, Trustee


                                               By
                                                 ------------------------------

ATTEST:



- -------------------


STATE OF IOWA     )
                           )  ss:
COUNTY OF LINN    )



                  On the __th day of  _____,  ____,  before me  personally  came
_________,  to me known, who, being by me duly sworn, did depose and say that he
is the __________ of IES UTILITIES INC., the corporation  described in and which
executed the foregoing  instrument;  that he knows the seal of said corporation;
that the seal affixed to said  instrument is such corporate seal; that it was so
affixed by authority of the Board of Directors of said corporation,  and that he
signed his name thereto by like  authority,  acknowledging  the instrument to be
the free act and deed of said corporation.




                                                     --------------------------
                                                     Notary Public

                                                     [Notarial Seal]






STATE OF ILLINOIS          )
                           )  ss:
COUNTY OF COOK             )



                  On the ___th day of _____,  _____,  before me personally  came
__________ to me known,  who, being by me duly sworn, did depose and say that he
is a __________  of THE FIRST  NATIONAL  BANK OF CHICAGO,  the national  banking
association  described in and which executed the foregoing  instrument;  that he
knows the seal of said national  banking  association;  that the seal affixed to
said instrument is the seal of said national banking association; that it was so
affixed  by  authority  of the  Board  of  Directors  of said  national  banking
association,   and  that  he  signed  his  name   thereto  by  like   authority,
acknowledging  the  instrument  to be the  free  act and  deed of said  national
banking association.




                                                         -----------------------
                                                         Notary Public

                                                         [Notarial Seal]








                                    EXHIBIT A

DESCRIPTION OF PROPERTY