SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13G
                                (Rule 13d - 102)

  INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO 13d-1(b), (c) AND
             (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b)

                               (Amendment No. 2)*


                            Oregon Steel Mills, Inc.
                                (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                   686079104
                                 (CUSIP Number)

                                January 1, 2003
            (Date of Event which Requires Filing of this Statement)

Check the  appropriate  box to  designate  the rule  pursuant to which this
Schedule is filed:

[ ]      Rule 13d-1(b)
[x]      Rule 13d-1(c)
[ ]      Rule 13d-1(d)

     *The  remainder  of this cover  page  shall be filled  out for a  reporting
person's  initial  filing on this  form with  respect  to the  subject  class of
securities,  and for any subsequent amendment containing information which would
alter disclosures provided in a prior cover page.

     The  information  required on the remainder of this cover page shall not be
deemed to be "filed"  for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 ("Act") or otherwise  subject to the  liabilities of that section of
the Act but shall be subject to all other  provisions of the Act  (however,  see
the Notes).


1.       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

                  Sage Opportunity Fund, L.P.

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

         (a)      [x]
         (b)      [ ]

3.       SEC USE ONLY

4.       CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

5.       SOLE VOTING POWER

                  0

6.       SHARED VOTING POWER

                  276,000

7.       SOLE DISPOSITIVE POWER

                  0

8.       SHARED DISPOSITIVE POWER

                  276,000

9.       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                  276,000

10.      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
         EXCLUDES CERTAIN SHARES*   [ ]

11.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                  1.1%

12.      TYPE OF REPORTING PERSON*

                  PN

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!


1.       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

                  Sage Master Investments Ltd.

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

         (a)      [x]
         (b)      [ ]

3.       SEC USE ONLY

4.       CITIZENSHIP OR PLACE OF ORGANIZATION

                  Cayman Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

5.       SOLE VOTING POWER

                  0

6.       SHARED VOTING POWER

                  1,260,900

7.       SOLE DISPOSITIVE POWER

                  0

8.       SHARED DISPOSITIVE POWER

                  1,260,900

9.       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                  1,260,900

10.      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
         EXCLUDES CERTAIN SHARES*   [ ]

11.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                  4.9%

12.      TYPE OF REPORTING PERSON*

                  CO

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!


1.       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

                  Sage Asset Management, L.L.C.

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

         (a)      [x]
         (b)      [ ]

3.       SEC USE ONLY

4.       CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

5.       SOLE VOTING POWER

                  0

6.       SHARED VOTING POWER

                  1,536,900

7.       SOLE DISPOSITIVE POWER

                  0

8.       SHARED DISPOSITIVE POWER

                  1,536,900

9.       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                  1,536,900

10.      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
         EXCLUDES CERTAIN SHARES*   [ ]

11.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                  6.0%

12.      TYPE OF REPORTING PERSON*

                  OO

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!


1.       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

                  Barry Haimes

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

         (a)      [x]
         (b)      [ ]

3.       SEC USE ONLY

4.       CITIZENSHIP OR PLACE OF ORGANIZATION

                  United States

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

5.       SOLE VOTING POWER

                  0

6.       SHARED VOTING POWER

                  1,536,900

7.       SOLE DISPOSITIVE POWER

                  0

8.       SHARED DISPOSITIVE POWER

                  1,536,900

9.       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                  1,536,900

10.      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
         EXCLUDES CERTAIN SHARES*   [ ]

11.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                  6.0%

12.      TYPE OF REPORTING PERSON*

                  IN

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!



1.       NAMES OF REPORTING PERSONS
         I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

                  Katherine Hensel

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

         (a)      [x]
         (b)      [ ]

3.       SEC USE ONLY

4.       CITIZENSHIP OR PLACE OF ORGANIZATION

                  United States

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

5.       SOLE VOTING POWER

                  0

6.       SHARED VOTING POWER

                  1,536,900

7.       SOLE DISPOSITIVE POWER

                  0

8.       SHARED DISPOSITIVE POWER

                  1,536,900

9.       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                  1,536,900

10.      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
         EXCLUDES CERTAIN SHARES*   [ ]

11.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                  6.0%

12.      TYPE OF REPORTING PERSON*

                  IN

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!



     This  statement is filed  pursuant to Rule 13d-2(b)  promulgated  under the
Securities  Exchange  Act of 1934,  as  amended,  with  respect to the shares of
common stock (the "Common  Stock") of Oregon Steel Mills,  Inc.  (the  "Issuer")
beneficially owned by Sage Opportunity Fund, L.P., Sage Master Investments Ltd.,
Sage Asset Management,  L.L.C., Barry Haimes and Katherine Hensel (collectively,
the "Reporting  Persons") as of February 7, 2003 and amends and  supplements the
Schedule 13G dated June 28, 2001, as  subsequently  amended on February 13, 2002
(the  "Schedule  13G").  Except  as  set  forth  herein,  the  Schedule  13G  is
unmodified.

Item 4.   Ownership.

     Provide  the  following  information  regarding  the  aggregate  number and
percentage of the class of securities of the issuer identified in Item 1.

     (a) Amount beneficially owned:

          Sage Opportunity Fund, L.P., a Delaware limited partnership  ("Sage"),
          beneficially   owns  276,000  shares  of  Common  Stock.  Sage  Master
          Investments  Ltd., a Cayman Islands  exempted  company ("Sage Master")
          beneficially  owns  1,260,900  shares  of  Common  Stock.  Sage  Asset
          Management,  L.L.C.,  a Delaware  limited  liability  company ("SAM"),
          solely in its capacity as  investment  manager of Sage Master and as a
          general partner of Sage,  beneficially owns 1,536,900 shares of Common
          Stock. Barry Haimes and Katherine Hensel,  solely in their capacity as
          co-portfolio  managers of SAM, each beneficially owns 1,536,900 shares
          of Common Stock.

     (b) Percent of class:

          The  Reporting  Persons  aggregate  beneficial  ownership of 1,536,900
          shares  of Common  Stock  constitutes  6.0% of all of the  outstanding
          shares of Common Stock.

     (c) Number of shares as to which such person has:

         (i) Sole power to vote or to direct the vote

             Not applicable.

        (ii) Shared power to vote or to direct the vote

             Sage has shared power with SAM, Mr. Haimes and Ms. Hensel to vote
             or direct the vote of 276,000 shares of Common Stock.

             Sage Master has shared power with SAM, Mr.  Haimes and Ms. Hensel
             to vote or direct the vote of 1,260,900 shares of Common Stock.

             SAM,  Mr.  Haimes and Ms.  Hensel  have  shared  power to vote or
             direct the vote of 1,536,900 shares of Common Stock.

     (iii) Sole power to dispose or to direct the disposition of

           Not applicable.

     (iv)  Shared power to dispose or to direct the disposition of

           Sage has shared  power  with SAM,  Mr.  Haimes and Ms.  Hensel to
           dispose or direct  the  disposition  of 276,000  shares of Common
           Stock.

           Sage Master has shared power with SAM, Mr.  Haimes and Ms. Hensel
           to dispose  or direct  the  disposition  of  1,260,900  shares of
           Common Stock.

           SAM,  Mr.  Haimes and Ms.  Hensel have shared power to dispose or
           direct the disposition of 1,536,900 shares of Common Stock.


Item 10.  Certifications.

     By  signing  below  the  undersigned  certifies  that,  to the  best of its
knowledge and belief, the securities referred to above were not acquired and are
not held for the purpose of or with the effect of changing  or  influencing  the
control of the issuer of the  securities  and were not acquired and are not held
in connection with or as a participant in any transaction having that purpose or
effect.


                                   SIGNATURES

     After  reasonable  inquiry and to the best of my  knowledge  and belief,  I
certify that the information  set forth in this statement is true,  complete and
correct.

Dated:  February 13, 2003

          SAGE OPPORTUNITY FUND, L.P.
          By: Sage Asset Management, L.L.C., as general partner


                   By: /s/ Barry Haimes
                       ----------------------
                             Barry Haimes
                             Managing Member

          SAGE MASTER INVESTMENTS LTD.


          By: /s/ Barry Haimes
             ----------------------
                   Barry Haimes
                   Director

          SAGE ASSET MANAGEMENT, L.L.C.


          By: /s/ Barry Haimes
              ----------------------
                   Barry Haimes
                   Managing Member



          /s/ Barry Haimes
          ----------------------
             Barry Haimes



          /s/ Katherine Hensel
          ----------------------
             Katherine Hensel