As filed with the Securities and Exchange Commission on May 29, 2008

                                                    Registration No. 333-135002

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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                         POST-EFFECTIVE AMENDMENT NO. 1

                                       TO

                                    FORM S-8

             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

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

                              L. B. FOSTER COMPANY
             (Exact name of registrant as specified in its charter)

                Pennsylvania                       25-1324733
          (State of incorporation)     (I.R.S. Employer Identification No.)

   415 Holiday Drive, Pittsburgh, Pennsylvania              15220
    (Address of principal executive offices)             (Zip Code)

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

                              L. B. FOSTER COMPANY
       2006 OMNIBUS INCENTIVE PLAN, AS AMENDED AND RESTATED MARCH 6, 2008
                            (Full title of the plan)

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

                              DAVID L. VOLTZ, Esq.
                  Vice President, General Counsel and Secretary
                              L. B. Foster Company
                                415 Holiday Drive
                         Pittsburgh, Pennsylvania 15220
                     (Name and address of agent for service)

                                 (412) 928-3431
          (Telephone number, including area code, of agent for service)

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

                                    Copy to:

                             MICHAEL M. LYONS, Esq.
                         Buchanan Ingersoll & Rooney PC
                          20th Floor, One Oxford Centre
                         Pittsburgh, Pennsylvania 15219

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


[The Prospectus  included herein is a combined  prospectus pursuant to Rule 429,
relating also to Registration  Statements  Nos.  33-17073,  33-35152,  33-79450,
333-81535  and  333-60488  and  contains  the Form S-3  information  required by
General  Instruction  C1 for  Form  S-8  in  order  for  affiliates  to use  the
Prospectus in reoffering  or reselling  stock  acquired by them pursuant to this
Registration  Statement  or  Registration  Statement  No.  33-17073,   33-35152,
33-79450, 333-81535 or 333-60488]



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                                   PROSPECTUS

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                              L. B. FOSTER COMPANY

                                  Common Stock
                                ($.01 Par Value)

                       1,500,000 Shares Offered Under The
             1985 Long-Term Incentive Plan as Amended and Restated,

                        900,000 Shares Offered Under The
              1998 Long-Term Incentive Plan as Amended and Restated

                                       and

                        500,000 Shares Offered Under The
        2006 Omnibus Incentive Plan as Amended and Restated March 6, 2008

This  Prospectus  relates to the offer and sale or  delivery of shares of Common
Stock of L. B. Foster  Company  (the  "Company")  to certain  present and former
officers,  directors and employees of the Company and its subsidiaries  pursuant
to the 1985 Long-Term  Incentive Plan as Amended and Restated (the "1985 Plan"),
the 1998 Long-Term Incentive Plan as Amended and Restated (the "1998 Plan"), and
the 2006 Omnibus Incentive Plan as Amended and Restated March 6, 2008 (the "2006
Plan").  Such persons (including  "affiliates" of the Company as defined in Rule
405 under the Securities Act of 1933) may use this Prospectus for the reoffer or
resale of such shares in brokers'  transactions  on The NASDAQ Stock Market,  in
privately  negotiated  transactions  or  otherwise,  and  may  be  deemed  to be
"underwriters"  as defined in the  Securities  Act of 1933 with  respect to such
resales. The Company will receive none of the proceeds from such resales.

The Common Stock is quoted and traded on The NASDAQ Stock Market (Symbol: FSTR).
The Company's  executive  offices are located at 415 Holiday Drive,  Pittsburgh,
Pennsylvania 15220 and its telephone number is (412) 928-3431.

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

          NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE
           SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE
              SECURITIES OR PASSED UPON THE ADEQUACY OR ACCURACY OF
                   THIS PROSPECTUS. ANY REPRESENTATION TO THE
                         CONTRARY IS A CRIMINAL OFFENSE.

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

               The date of this amended Prospectus is May 29, 2008



                              AVAILABLE INFORMATION

     L. B.  Foster  Company  (the  "Company")  is subject  to the  informational
requirements of the Securities  Exchange Act of 1934, as amended,  and the rules
and regulations  thereunder (the "Exchange  Act"),  and in accordance  therewith
files reports,  proxy  statements and other  information with the Securities and
Exchange Commission (the "Commission").  Such material can be read and copied by
the public at the  Commission's  Public  Reference  Room at 100 F Street,  N.E.,
Washington,  D.C. 20549.  The public may obtain  information on the operation of
the Public Reference Room by calling the Commission at 1-800-SEC-0330.

     This Prospectus,  which constitutes part of a Registration  Statement filed
by the Company with the Commission under the Securities Act of 1933, as amended,
and the rules and regulations  thereunder (the "Securities  Act"), omits certain
of the information contained in the Registration Statement.  Reference is hereby
made to the  Registration  Statement  and to the exhibits  relating  thereto for
further  information  with  respect to the  Company and the  securities  offered
hereby. The Registration Statement, including the exhibits filed or incorporated
by reference as a part thereof,  may be inspected  without  charge at the Public
Reference Room of the Commission at 100 F Street, N.E., Washington,  D.C. 20549,
and copies may be obtained from the Commission at prescribed  rates.  Statements
contained  herein   concerning  the  provisions  of  documents  are  necessarily
summaries  of such  documents,  and each  such  statement  is  qualified  in its
entirety by  reference  to the copy of the  applicable  document  filed with the
Commission.  Further information about the 1985 Plan, the 1998 Plan and the 2006
Plan and their  administrators  may be  obtained by  contacting  David L. Voltz,
Secretary  of the  Company,  whose  address and  telephone  number are set forth
below.

     The Commission maintains an Internet site that contains reports,  proxy and
information  statements,  and  other  information  regarding  issuers  who  file
electronically  with the  Commission,  such as the Company.  The address of that
site is http://www.sec.gov. Our internet address is www.lbfoster.com.

     If a copy of the  Company's  annual  report  to  shareholders  for the last
fiscal year was not furnished with this Prospectus, a copy of such report may be
obtained,  without charge,  from the Company upon written or oral request to: L.
B.  Foster  Company,  Attn:  David  L.  Voltz,  Secretary,  415  Holiday  Drive,
Pittsburgh, PA 15220, telephone number (412) 928-3431. Participants in the Plans
receive  copies  of all  reports,  proxy  statements  and  other  communications
distributed to shareholders of the Company.


                                  THE 1985 PLAN

     The 1985 Long-Term  Incentive Plan became effective January 1, 1985 and was
approved at the 1985 annual meeting of  stockholders.  The Board of Directors on
February 6, 1987  amended the Plan in a number of respects by adopting  the 1985
Long-Term Incentive Plan as Amended and Restated, which was approved at the 1987
annual meeting of stockholders.  At the 1990 annual meeting the Plan was amended
by increasing  from 800,000 to 1,000,000 the maximum  number of shares  issuable
upon the exercise of options or stock appreciation  rights. The Plan was further
amended July 30, 1992 to bring the Plan in compliance with the



requirements  of Rule 16b-3 (as amended May 1, 1991) under the  Exchange Act and
remove  certain  restrictions  and procedures  which are no longer  necessary in
order to comply with that Rule. The July 1992  amendments had no effect on stock
options granted prior to those  amendments,  except to the extent that the stock
option  agreement may be amended in writing in accordance  with the Plan. At the
1994  annual  meeting the  stockholders  approved  amendments  to the Plan which
increased  from  1,000,000 to 1,500,000  the maximum  number of shares of common
stock  issuable  upon the exercise of options or stock  appreciation  rights and
extended  from  January 1, 1995 to January 1, 2005 the  termination  date of the
Plan. Finally, on May 25, 2005 the Plan was amended by deleting the authority to
award stock  appreciation  rights  ("SARs") to  optionees.  No SARs or Incentive
Stock Options were awarded under the Plan. The 1985 Long-Term  Incentive Plan as
Amended and Restated is hereinafter referred to as the "1985 Plan".

     The 1985 Plan expired January 1, 2005; however, stock options granted prior
to the  expiration  date remain in effect in  accordance  with their terms.  The
purpose of the 1985 Plan was to provide  financial  incentives  for selected key
personnel and directors of the Company and its  subsidiaries,  thereby promoting
the long-term growth and financial  success of the Company by (i) attracting and
retaining personnel and directors of outstanding ability, (ii) strengthening the
Company's  capability  to develop,  maintain  and direct a competent  management
team, (iii) motivating key personnel to achieve long-range performance goals and
objectives and (iv) providing incentive compensation  opportunities  competitive
with those of other corporations.

     The 1985 Plan was  neither  qualified  under  Section  401 of the  Internal
Revenue Code of 1986, as amended (the "Code"),  nor subject to any provisions of
the Employee Retirement Income Security Act of 1974, as amended ("ERISA").

     The  following  summary of the 1985 Plan is  qualified  in its  entirety by
reference to the 1985 Plan,  copies of which have been filed with the Commission
and furnished to the recipients of stock options.

Eligibility

     The 1985 Plan  authorized  the  granting of stock  options to officers  and
employees  of  the  Company  and  its  subsidiaries  who  occupied   responsible
executive,  professional or administrative positions and who had the capacity to
contribute  to the  success  of the  Company.  Options  could also be granted to
directors  of the Company and its  subsidiaries  who were not  employees  of the
Company or a  subsidiary.  Employees  were  required  to be in grade level 15 or
above or otherwise selected for  participation.  As of May 28, 2008 there were 5
participants in the 1985 Plan.

Administration

     Awards to participants are  administered by a committee  composed of two or
more directors of the Company,  each of who is a "non-employee  director" within
the meaning of Rule 16b-3 under the Exchange Act (the  "Committee").  Members of
the  Committee  are  appointed  by and  serve at the  pleasure  of the  Board of
Directors.  The  Committee  was  authorized,  in its  discretion  but within the
parameters set forth in the 1985 Plan, to determine those officers,



employees and directors  who would  receive  awards,  the number of shares to be
optioned  and the time or times  when  awards  would be made,  and to grant such
awards. The Committee is authorized to interpret the terms and provisions of the
1985  Plan.  The  Committee's  interpretations  of  the  awards  are  final  and
conclusive as to all interested parties.  The Committee has general authority to
interpret the Plan and establish rules and  regulations for its  administration.
As of the date of this  Prospectus,  the members of the Committee are William H.
Rackoff,  ASKO,  Inc., 501 West 7th Avenue,  Homestead,  PA 15120, and G. Thomas
McKane, c/o L. B. Foster Company, 450 Holiday Drive, Pittsburgh, PA 15220.

Stock Option Grants

     Up to  1,500,000  shares of Common  Stock of the  Company  may be issued or
delivered by the Company under the 1985 Plan, which may include  newly-issued or
treasury shares. The number and kind of shares that may be issued, the number of
shares subject to outstanding  options,  the exercise (purchase) price per share
and other relevant  provisions  are subject to appropriate  adjustment for stock
splits, stock dividends,  reverse splits,  recapitalizations,  a merger in which
the Company is the surviving  corporation or other similar capital changes.  Any
such adjustment is as determined by the Board of Directors,  whose determination
is binding on all persons.

     Nonqualified  stock options.  The stock options granted under the 1985 Plan
are  "nonqualified"  in that they do not qualify as  "incentive  stock  options"
within the meaning of Section 422 of the Code.

Terms and Provisions of Stock Options

     The Committee was authorized to determine the terms and provisions of stock
options granted under the 1985 Plan,  provided that (a) the exercise price could
not be less than the fair market  value (as defined) of the stock on the trading
day immediately preceding the date of grant, as determined by the Committee, and
(b) the option must  expire no later than ten years from the date of grant.  The
terms and  provisions of option  grants were not required to be uniform.  Unless
otherwise  provided  in  the  stock  option  agreement,   (a)  the  options  are
exercisable in cumulative annual installments in the amount of 25% of the shares
optioned,  commencing on the first  anniversary of the grant, (b) in the case of
death, the option may be exercised by the optionee's legal representative within
12  months  after the date of  death,  but only to the  extent  the  option  was
exercisable at the time of death, (c) in the case of retirement with the consent
of the Company or Permanent Disability, the option may be exercised within three
years after termination of service for such reason,  but only to the extent that
the option was exercisable at the time of such termination of service and (d) if
the  optionee's  service  with  the  Company  or a  subsidiary  of  the  Company
terminates for any reason other than death,  retirement  with the consent of the
Company  or  Permanent  Disability,  all  options  held  by  the  optionee  will
immediately  terminate and may not thereafter be exercised;  provided,  however,
that if the optionee's  service  terminates more than four years after the grant
of the option and if the optionee's  service is not terminated for "cause",  the
optionee  may  exercise  the option  within 30 days after  such  termination  of
service.  Notwithstanding the foregoing, in no event may any option be exercised
after the expiration of ten years from the date on which it was granted. "Cause"
includes  willful  or gross  neglect  of duties  or  willful  misconduct  in the
performance of



duties,  so as to  cause  material  harm to the  Company  or any  subsidiary  as
determined by the Board of Directors; fraud, misappropriation or embezzlement in
the  performance  of duties;  or conviction of a felony which,  as determined in
good  faith by the  Board of  Directors,  constitutes  a crime  involving  moral
turpitude and results in material harm to the Company or a subsidiary.

     The Committee is  authorized  to determine  whether an optionee has retired
from service or has suffered Permanent  Disability,  and its determination shall
be binding on all concerned. In the sole discretion of the Committee, a transfer
of service to an affiliate of the Company other than a subsidiary of the Company
may be deemed retirement from service with the consent of the Company. Except as
otherwise provided in the stock option agreement,  an optionee's service will be
treated as  continuing  while the optionee is on military  leave,  sick leave or
other  bona fide leave of absence if the period of such leave does not exceed 90
days or, if longer,  the optionee's  right to reestablish  his or her service is
guaranteed  by statute or by  contract;  absent such  statute or  contract,  the
optionee's  service  will be deemed to have  terminated  on the 91st day of such
leave.  The Committee is also authorized,  in its discretion,  to accelerate the
date on which an option may be exercised, if it determines that to do so will be
in the best interests of the Company and the optionee.

     Stock  option  agreement.  Each stock option is evidenced by a stock option
agreement in such form and containing such provisions, not inconsistent with the
provisions of the 1985 Plan, as the Committee approved. The terms and provisions
of such  agreements  were not  required  to be  uniform.  Each  optionee  should
therefore  refer to his or her own  stock  option  agreement  for the  terms and
provisions of the option.

Exercise of Stock Options and Disposition of Shares

     Manner of exercise. Stock options may be exercised by giving written notice
of exercise to the Company specifying the number of shares to be purchased.  The
notice of exercise  must be  accompanied  by (a) payment in full of the exercise
price in cash or by certified or  cashier's  check or (b) a copy of  irrevocable
instructions  to a broker to promptly  deliver to the Company the amount of sale
or loan proceeds sufficient to cover the exercise price.

     Conditions  to delivery of shares.  The Company  will not be  obligated  to
deliver  any shares  upon the  exercise  of an option  unless and until,  in the
opinion of the Company's counsel,  all applicable federal,  state and other laws
and regulations have been complied with. If the outstanding stock at the time of
exercise is listed on any stock  exchange,  no delivery  will be made unless and
until the shares to be delivered have been listed or authorized for listing upon
official  notice of issuance on such  exchange.  Nor will delivery be made until
all other legal matters in  connection  with the issuance and delivery of shares
have been  approved  by the  Company's  counsel.  In this  regard,  and  without
limiting  the  generality  of the  foregoing,  the Company may require  from the
optionee or the optionee's legal  representative such investment  representation
or such  agreement,  if any,  as legal  counsel  for the  Company  may  consider
necessary in order to comply with the Securities Act, the securities laws of any
state and the regulations thereunder,  certificates evidencing the shares may be
required to bear a restrictive  legend, a stop transfer order may be placed with
the transfer  agent,  and there may be  restrictions  as to the number of shares
that  can be  resold  during a given  period  of time  and the  manner  of sale.
Optionees  or  their  legal  representatives  must  take any  action  reasonably
requested by the



Company in order to effect  compliance  with all applicable  securities laws and
regulations and any listing requirements.

     Notice of disposition of shares. Each optionee must notify the Company when
any disposition of optioned shares, whether by sale, gift or otherwise,  is made
by the optionee.

Miscellaneous Provisions

     Nontransferability.  No  stock  option  awarded  under  the  1985  Plan  is
transferable  by the  optionee  other  than by will or the laws of  descent  and
distribution.  Any transfer contrary to this restriction will nullify the award.
Options are exercisable  during the optionee's  lifetime only by the optionee or
the optionee's legal representative.

     Shareholder rights. An optionee has no rights as a shareholder with respect
to any stock  covered by his or her option until the issuance to the optionee of
a stock certificate representing such stock.

     No right to employment.  Neither the establishment of the 1985 Plan nor any
action taken by the Company,  the Board,  or the Committee  under the 1985 Plan,
nor any  provision of the 1985 Plan,  shall be construed as giving to any person
the right to be retained in the service of the Company or any subsidiary.

     Consolidation  or merger.  In the event of a  consolidation  or a merger in
which the Company is not the surviving corporation, or any other merger in which
the  shareholders  of the Company  exchange their shares of stock in the Company
for stock of another corporation, or in the event of complete liquidation of the
Company,  or in the case of a tender offer  accepted by the Board of  Directors,
all outstanding options will thereupon  terminate,  provided that the Board may,
prior to the effective date of any such consolidation or merger, either (a) make
all  outstanding  options  immediately  exercisable  or (b)  arrange to have the
surviving  corporation grant to the optionees replacement options on terms which
the Board determines to be fair and reasonable.

     Amendments.  The Board of Directors  may at any time amend the 1985 Plan or
amend any outstanding  option for the purpose of satisfying the  requirements of
any changes in applicable laws or regulations or for any other purpose which may
at the time be permitted by law, provided that no such amendment shall result in
Rule 16b-3  under the  Exchange  Act  becoming  inapplicable  to any  options or
without the approval of the shareholders of the Company (a) increase the maximum
number of  shares of common  stock  available  under the 1985 Plan  (subject  to
adjustment as explained  above),  (b) reduce the exercise price of options below
the prices  provided  for in the 1985 Plan,  (c)  extend the time  within  which
options may be granted, or (d) extend the period of an outstanding option beyond
ten years from the date of grant. No amendment shall adversely affect the rights
of any optionee under any award  theretofore  granted except upon the optionee's
written  consent  to  such  amendment.  Amendments  requiring  the  approval  of
shareholders may be effected by the Board subject to such approval.



                                  THE 1998 PLAN

     On October  23,1998,  the Board of  Directors  adopted  the 1998  Long-Term
Incentive  Plan  which  provided  for the  issuance  of options to acquire up to
25,000 shares of the Company's common stock. Options to acquire 25,000 shares of
common stock were subsequently  awarded to outside directors of the Company.  On
February  24,  1999,  the Board of  Directors  adopted,  subject to  shareholder
approval,  an amended and restated 1998 Long-Term  Incentive  Plan which,  among
other things, increased the number of shares of Common Stock which may be issued
under  that  Plan from  25,000  to  450,000.  On  February  2, 2001 the Board of
Directors  adopted,  subject to  shareholder  approval,  a further  amended  and
restated  1998  Long-Term  Incentive  Plan which  increased the number of shares
which  may be  issued  under the Plan from  450,000  to  900,000.  That Plan was
approved at the annual meeting of  shareholders on May 9, 2001. On May 25, 2005,
the Plan was amended by deleting the authority to award SARs or Incentive  Stock
Options to participants and in certain other respects (as so amended,  the "1998
Plan").  No SARs or Incentive  Stock  Options  have been awarded  under the 1998
Plan. The Plan will expire on October 22, 2008,  unless terminated on an earlier
date by the Board. As of May 28, 2008 there had been 12 participants in the 1998
Plan,  636,125 shares had been delivered under the Plan, and options for 217,500
shares were outstanding.

     The  purpose  of the  1998  Plan is to  provide  financial  incentives  for
selected  key  personnel  and  directors  and to  enable  the  Company  to offer
competitive  compensation  to them.  The 1998 Plan is  neither  qualified  under
Section 401 of the Code nor subject to any provisions of ERISA.

     The  following  summary of the 1998 Plan is  qualified  in its  entirety by
reference to the 1998 Plan,  copies of which have been filed with the Commission
and furnished to the recipients of stock options.

Administration

     The 1998 Plan is  administered  by a Committee  consisting of either (a) at
least two  "non-employee"  directors (within the meaning of Rule 16b-3 under the
Securities Exchange Act of 1934) or (b) the full Board of Directors.  Currently,
the 1998 Plan is  administered  by the  Compensation  Committee  of the Board of
Directors, which consists of William H. Rackoff and G. Thomas McKane. Within the
parameters  set forth in the 1998  Plan,  the  Committee  has the  authority  to
determine  those key employees or directors  who shall  receive a  discretionary
award and the terms and  conditions  of each such award.  The Committee may also
prescribe  regulations for the operation of the 1998 Plan and interpret the 1998
Plan  and  option  agreements  issued  under  the  1998  Plan.  In  addition  to
discretionary  awards  made  by  the  Committee,   non-employee  directors  were
automatically  awarded  options to acquire  up to 5,000  shares of Common  Stock
after each annual shareholders meeting.  These automatic awards, which have been
discontinued, are described below under "Automatic Stock Options."

General

     Up to 900,000 shares of Common Stock of the Company may be issued under the
1998 Plan,  which may  include  newly  issued or  treasury  shares.  An option's
exercise  price must be at least the fair market  value of the shares on the day
the option is granted. Each option must be



evidenced by a stock option  agreement in a form  prescribed  by the  Committee.
Options granted under the 1998 Plan are not  transferable  other than by will or
the laws of descent and distribution.

     Options  may be  exercised  by giving  written  notice of  exercise  to the
Company specifying the number of shares to be purchased.  The notice of exercise
must be  accompanied  by (a)  payment  in full of the  exercise  price  in cash,
certified check or other medium acceptable to the Company in its sole discretion
or (b) a copy of irrevocable instructions to a broker to promptly deliver to the
Company  an amount of sale or loan  proceeds  sufficient  to cover the  exercise
price.

     The number of shares that may be issued  under the 1998 Plan and the number
and price of shares  subject to  outstanding  options are subject to appropriate
adjustment for stock splits, stock dividends, reverse splits,  reclassifications
and other similar events.

     Each  optionee  must notify the Company  when any  disposition  of optioned
shares, whether by sale, gift or otherwise, is made by the optionee.

     Awards under the 1998 Plan consist of "non-qualified" stock options in that
they do not qualify as "incentive  stock options"  within the meaning of Section
422 of the Code.

Automatic Stock Options

     Immediately  after each annual meeting of  shareholders,  from 2000 to 2005
inclusive,  each  non-employee  director who was elected at the meeting or whose
term in office continued after the meeting was  automatically  granted an option
to purchase up to 5,000 shares of Common Stock,  subject to  adjustment  for any
future stock splits, stock dividends, reverse splits, reclassifications or other
similar events (the "Automatic Options"). The Automatic Options have an exercise
price per share equal to the fair market  value of the Common  Stock on the date
of the meeting, have a term of ten years and were immediately exercisable.

     When a director has served less than five years,  the director may exercise
his or her Automatic  Options only within one year after termination of service,
unless  the  director's  service  is  terminated  due to  death,  disability  or
retirement  with the  consent of the  Company,  in which case the options may be
exercised  during their full ten year term. A director who has served five years
or longer may exercise his or her Automatic  Options  during their full ten year
term.  Notwithstanding the foregoing, if a director is removed for cause, all of
his or her Automatic Options shall immediately terminate.

Discretionary Stock Options

     In addition to the Automatic  Options,  stock options may be granted to key
personnel and  directors,  including  both employee  directors and  non-employee
directors,  in  the  discretion  of  the  Committee  ("Discretionary  Options").
Discretionary  Options  granted to  directors  are  hereinafter  referred  to as
"Director  Options."   Discretionary   Options  are  subject  to  the  following
provisions of the 1998 Plan,  and the terms and  provisions of such options need
not be uniform:



     Eligibility.  Discretionary  Options  may be  granted by the  Committee  to
directors  or to key  employees  who  occupy  a  responsible  executive,  sales,
professional or  administrative  position and, in the Committee's view, have the
capacity  to  contribute  to the  success of the  Company.  In  addition  to the
Company's  non-employee  directors,  the Company has approximately 76 employees,
out of approximately  665 total  employees,  whose grade level makes them likely
candidates for option awards.

     Exercise Price. The exercise price of  Discretionary  Options is determined
by the Committee, but shall be not less than the fair market value of the Common
Stock on the date of grant.

     Term. The term of Discretionary Options is determined by the Committee, but
shall not  exceed ten years from the date of grant.  Director  Options  have the
same  early-termination  provisions as Automatic Options. The  early-termination
provisions of the 1998 Plan as to all other  Discretionary  Options are the same
as those of the 1985 Plan.  See "THE 1985 PLAN - Terms and  Provisions  of Stock
Options."

     Vesting.  Options granted to outside directors are immediately exercisable.
Except as otherwise  provided in the option agreement,  all other  Discretionary
Options may be exercised in cumulative annual installments,  each for one-fourth
of the total optioned shares, commencing one year from the date of grant.

Amendments and Termination

     The  Board of  Directors  may at any time  amend the 1998 Plan or amend any
outstanding option for purposes of satisfying the requirements of any changes in
applicable laws or regulations or, in the case of Discretionary Options, for any
other purpose which may at the time be permitted by law; provided, however, that
no such  amendment  is  permissible  if it would  result in Rule 16b-3 under the
Exchange Act becoming  inapplicable  to any options,  nor may any such amendment
adversely affect the rights of any participant in the 1998 Plan under any option
theretofore  granted to such participant  except upon his or her written consent
to such amendment.

     The Board may  terminate  the 1998 Plan at any time.  However,  awards made
prior to the expiration or termination of the 1998 Plan will remain in effect in
accordance with their terms. In the event of a consolidation  or merger in which
the Company is not the surviving  corporation,  or any other merger in which the
shareholders  of the Company  exchange  their shares of stock in the Company for
stock of another  corporation,  or in the event of complete  liquidation  of the
Company, or in the case of a tender offer accepted by the Board, all outstanding
stock options shall thereupon  terminate,  provided that the Board may, prior to
the  effective  date of any such  consolidation  or merger,  either (a) make all
outstanding options immediately exercisable or (b) arrange to have the surviving
corporation  grant to the  participants  replacement  options on terms which the
Board shall determine to be fair and reasonable.



                                  THE 2006 PLAN

     At the 2006  annual  meeting the  shareholders  approved  the 2006  Omnibus
Incentive Plan which  authorized the issuance of up to 500,000 shares of Company
common stock  pursuant to stock  options and awards of common stock to directors
and key  personnel  selected  by the  Compensation  Committee  of the  Board  of
Directors. On March 6, 2008, the Board of Directors amended the Plan in a number
of respects,  and at the annual  meeting in 2008 the  shareholders  approved the
Plan as so amended and restated. The most significant change was the addition of
new Article VI which authorizes the Committee to award performance grants to key
personnel and directors  selected by the Committee in its  discretion.  Benefits
under  such  grants  will be  based  upon  the  achievement  of  pre-established
performance goals over a performance  period of one or more years.  There was no
increase in the total  number of shares of Common Stock that may be issued under
the Plan.

     The material  features of the 2006 Omnibus  Incentive  Plan, as Amended and
Restated on March 6, 2008 ("Plan" or "2006 Plan"), are described below,  subject
in their  entirety to the full text of the Plan. To date 63,898 shares of Common
Stock  (vested and  non-vested)  have been awarded to 16 employees and directors
under the Plan,  and  performance  grants for 23,273 shares of Common Stock,  at
target, have been awarded to 11 employees.

Administration

     The Plan is  administered  by the  Compensation  Committee  of the Board of
Directors  (the  "Committee").  Within the parameters set forth in the Plan, the
Committee has the  authority to determine  those key employees and directors who
will receive an award and the terms and conditions of each award.  The Committee
may also prescribe  regulations  for the operation of the Plan and interpret the
Plan and the  agreements  issued  under the Plan.  In addition to  discretionary
awards  made by the  Committee,  commencing  with  the  annual  meeting  in 2006
non-employee  directors  automatically  are awarded 3,500 shares of Common Stock
after each annual shareholders'  meeting, or such lesser number of shares as may
be determined by the Committee.  Each  non-employee  director elected at the May
28, 2008 annual shareholders'  meeting was awarded 1,750 shares. These automatic
awards are described below in "Restricted Stock Awards."

Types of Awards

     The Plan  authorizes  the  following  types of award,  each of which may be
granted alone or in any combination thereof: (i) stock options,  (ii) restricted
stock, and (iii) performance grants.

Participation in the Plan

     The Committee has exclusive power to select the persons who may participate
in the  Plan  and may  grant  awards  under  the  Plan  to  employees  or  other
individuals  who  perform  services  for the  Company or any  subsidiary  of the
Company  including,  without  limitation,  directors  who are not  employees and
consultants and independent  contractors who perform services for the Company or
any subsidiary of the Company.



Maximum Number of Shares that May be Issued; Award Limitations

     Subject to adjustment, the maximum aggregate number of shares available for
issuance pursuant to awards granted under the 2006 Plan is 500,000.  Pursuant to
the terms of the Plan and subject to  adjustments  provided for in the Plan,  no
eligible  person may receive in any one fiscal year:  (i) stock options for more
than 75,000 shares of Common  Stock,  (ii)  performance  grants  denominated  in
common shares for more than 75,000 shares of Common Stock, and (iii) performance
grants  denominated  in cash for more than  $1,500,000.  If any shares of Common
Stock covered by an award  terminate,  lapse, or are forfeited or cancelled,  or
such award is  otherwise  settled  without  the  delivery  of the full number of
shares of Common Stock  underlying the award,  including  shares of Common Stock
withheld to satisfy tax withholding obligations,  then such shares to the extent
of any such forfeiture,  termination,  lapse, cancellation,  payment, etc., will
again be, or shall become, available for issuance under the Plan.

Stock Options and Restricted Stock Awards

     Stock  options  and  restricted  stock  awards may be  granted to  eligible
persons in the  discretion  of the  Committee.  Stock  options and stock  awards
granted to non-employee  directors are hereinafter  respectively  referred to as
"Director  Options" and  "Director  Awards." The terms and  provisions  of stock
options and restricted stock awards need not be uniform.

     Stock  options  awarded  under  the  2006  Plan  are  not  intended  to  be
"qualified"  under Section 422 of the Code. The Committee  determines the number
of shares  which are to be  subject to each stock  option  and  establishes  the
exercise price at the time each stock option is granted.  The Plan provides that
the  option  exercise  price for each share of Common  Stock  covered by a stock
option will not be less than the fair market value of a share of Common Stock on
the date the  option is  granted  and that the term of the option may not exceed
ten years from the grant date. For this purpose, fair market value is determined
by reference  to the closing  price of the Common Stock on the date of grant or,
if the grant date is not a trading  day, the trading day  immediately  preceding
the grant date. The exercise price is payable in cash or other medium acceptable
to the Company.  Except as otherwise  provided in the option agreement,  options
(other than Director  Options)  terminate 30 days after the  termination  of the
participant's  employment  with the  Company  for any reason  other than  death,
disability or retirement with the consent of the Company.  Director  Options are
immediately  exercisable  and may be exercised for a period of 10 years from the
date of grant.  Except as  otherwise  provided  in the option  agreement,  other
discretionary  options may be exercised in cumulative annual installments,  each
for one-fourth of the total number of shares optioned,  commencing one year from
the date of grant.  Repricing of a stock option is not permitted under the terms
of the Plan.

     Each  non-employee  director is  automatically  granted a Director Award of
3,500  shares of fully  vested  Common  Stock,  or such lesser  number as may be
determined by the Committee. The Committee reduced to 1,750 the number of shares
that were issued to outside  directors at the May 28, 2008 annual  shareholders'
meeting.  Restricted stock awards may also be granted to eligible persons in the
discretion of the Committee.  Such awards become vested pursuant to the terms of
the applicable restricted stock award agreement as specified by the Committee.



Performance Grants

     The  Committee  in its sole  discretion  may  award  performance  grants to
eligible  persons  under  Article VI of the Plan.  Such  grants may consist of a
right that is (i) denominated in cash, stock or any other form of award issuable
under Article VI (or any combination thereof), (ii) valued, as determined by the
Committee,  in accordance with the achievement of such performance  goals during
such performance  period as the Committee  establishes and (iii) payable at such
time and in such form as the  Committee  determines.  The Committee has the sole
and complete  authority to determine  the value of any  performance  grant to be
awarded,  the performance  period, and the performance  criteria to be satisfied
within the award period.

     Grants intended to be  performance-based  compensation under Section 162(m)
of the Code  are  conditioned  upon the  achievement  of  pre-established  goals
relating to one or more of the following  performance measures, as determined by
the  Committee  and  subject  to  such  modifications  as are  specified  by the
Committee:  cash flow; cash flow from operations;  earnings  (including earnings
before  interest,   taxes,  depreciation  and  amortization  or  some  variation
thereof);  earnings  per  share,  diluted  or basic;  earnings  per  share  from
continuing  operations;   net  asset  turnover;   inventory  turnover;   capital
expenditures;  debt;  debt  reduction;  working  capital;  return on investment;
return on sales; net or gross sales; market share; economic value added; cost of
capital;  change in assets;  expense  reduction levels;  productivity;  delivery
performance;  stock  price;  return on equity;  total or relative  increases  to
shareholder return; return on invested capital;  return on assets or net assets;
revenue;  income  or net  income;  operating  income  or net  operating  income;
operating  profit or net operating  profit;  gross margin,  operating  margin or
profit  margin;  and completion of  acquisitions,  business  expansion,  product
diversification  and other  non-financial  operating and management  performance
objectives.

     To the extent  consistent  with Code  Section  162(m),  the  Committee  may
determine  that  certain  adjustments  to the  performance  goals shall apply to
exclude  the  effect  of  any  of the  following  events  that  occur  during  a
performance period: the impairment of tangible or intangible assets;  litigation
or claim judgments or settlements;  the effect of changes in tax law, accounting
principles  or  other  such  laws or  provisions  affecting  reported  operating
results;  business combinations,  reorganizations and/or restructuring programs,
including  but  not  limited  to  reductions  in  force  and  early   retirement
incentives; currency fluctuations; and any extraordinary, unusual, infrequent or
non-recurring  items.  Performance measures may be applied to either the Company
as a  whole  or  to  a  business  unit  or  subsidiary  entity  thereof,  either
individually, alternatively or in any combination, and measured over one year or
cumulatively  over a period of years,  on an  absolute  basis or  relative  to a
pre-established  target,  to previous  fiscal years'  results or to a designated
comparison group, in each case as specified by the Committee. Performance grants
may be  paid  in a lump  sum or in  installments  following  the  close  of each
performance  period  or,  in  accordance  with  procedures  established  by  the
Committee,  on a deferred  basis.  All deferrals will be made in accordance with
the terms and procedures of the deferred  compensation plan under which any such
amounts  are  deferred.  Unless  otherwise  provided  in  the  award  agreement,
participants  who have terminated their employment with the Company prior to the
actual payment of the award will forfeit all rights to payment under the award.



     The Committee,  in its sole discretion,  may also establish such additional
restrictions  or conditions  that must be satisfied as a condition  precedent to
the  payment  of all or a portion of any  awards.  The  Committee  also has sole
discretion to reduce the amount of any award to a  participant  if it determines
that such reduction is necessary or appropriate  based upon certain  factors and
conditions set forth in the 2006 Plan. The Committee,  however,  may not use its
discretionary   authority   to  increase  any  award  that  is  intended  to  be
performance-based compensation under Section 162(m) of the Code.

Amendments and Termination

     The  Board of  Directors  may at any time  amend the 2006 Plan or amend any
outstanding  award agreement for the purpose of satisfying any legal requirement
or for any other  permissible  purpose;  provided  that an amendment  that would
result in Rule 16b-3 under the Exchange Act being  inapplicable  to any award is
not  permissible.  The Board  may  terminate  the Plan at any time,  but no such
termination shall adversely affect the rights of any participant under any award
previously   granted   in  which  the   participant   has  a  vested   interest.
Notwithstanding, the Committee may at any time modify, amend or terminate any or
all of the  provisions of the Plan to conform with Section 409A,  Section 162(m)
or any other  provision of the Code or other  applicable  law,  the  regulations
promulgated thereunder or an exception thereto.

Changes in Stock

     In the event of a stock dividend,  recapitalization  or merger in which the
Company is the surviving corporation or other similar capital change, the number
and kind of shares of stock to be  subject  to the Plan and to  options or stock
then  outstanding or to be awarded  thereunder,  the maximum number of shares of
stock or  securities  which may be issued upon the  exercise of options  granted
under the Plan,  the  exercise  price and  other  relevant  provisions  shall be
appropriately  adjusted by the Board;  provided  that with  respect to any award
subject to Code Section 162(m) or 409A, any such  adjustment is authorized  only
to the extent that it would not cause the award to fail to comply with such Code
sections.  In the event of a  consolidation  or a merger in which the Company is
not the surviving corporation,  or any other merger in which the shareholders of
the Company  exchange  their shares of stock in the Company for stock of another
corporation,  or in the event of complete  liquidation of the Company, or in the
case of a tender offer accepted by the Board of Directors, all outstanding stock
options shall  thereupon  terminate,  provided that the Board may,  prior to the
effective date of the  consolidation or merger,  either (i) make all outstanding
stock  options  immediately  exercisable  or (ii) arrange to have the  surviving
corporation  grant to the participants  replacement  stock options on terms that
the Board determines to be fair and reasonable.

Transferability

     No  award  or  any  right  thereto  is  assignable  or  transferable  by  a
participant except by will or by the laws of descent and distribution; provided,
however,  that the  Committee in its  discretion  may permit the transfer of any
award  to a  Permitted  Transferee  within  the  meaning  of the  Plan,  such as
executors or administrators of the estates of deceased participants,  subject to
the terms and conditions of the award.



Plan Termination

     The  2006  Plan  will  terminate  upon the  earlier  of (i)  adoption  of a
resolution of the Board terminating the Plan and (ii) May 31, 2016.


                     CERTAIN FEDERAL INCOME TAX CONSEQUENCES

     The  following is a brief summary of the  principal  United States  federal
income tax  consequences  applicable to  participants in the 1985 Plan, the 1998
Plan and the 2006 Plan and to the Company,  and is based upon an  interpretation
of present federal tax laws and regulations and may be inapplicable if such laws
and  regulations  are changed.  This summary is not intended to be exhaustive or
constitute  tax  advice  and does not  describe  state,  local  or  foreign  tax
consequences.  To the  extent  any  awards  under the 2006 Plan are  subject  to
Section 409A of the Code,  the  following  description  assumes that such awards
will be designed to conform to the  requirements of Section 409A of the Code and
the regulations  promulgated thereunder (or an exception thereto). The Plans are
not subject to the  protective  provisions of ERISA and are not qualified  under
Section 401(a) of the Code.

Stock Options

     Stock options granted under the Plans are  "non-qualified."  The Company is
not entitled to a tax  deduction  with  respect to the grant of a  non-qualified
stock option.  Upon exercise of a non-qualified  stock option, the excess of the
fair  market  value of the  Common  Stock on the  exercise  date over the option
exercise price is taxable as compensation  income to the optionee and is subject
to  applicable  withholding  taxes.  The Company is generally  entitled to a tax
deduction at that time in the amount of that compensation income. The optionee's
tax  basis  for  the  Common  Stock  received  pursuant  to  the  exercise  of a
non-qualified  stock  option  is  equal  to the sum of the  compensation  income
recognized and the exercise price.  The recipient,  after exercising the option,
will  realize  long-term  capital  gain or ordinary  income upon the sale of the
stock, depending upon the length of time he or she retained ownership.

Restricted Stock

     A grantee does not recognize any income upon the grant of restricted  stock
if that stock is  subject to a  substantial  risk of  forfeiture  on the date of
grant,  unless the holder elects under Section 83(b) of the Code, within 30 days
of the grant, to recognize ordinary income in an amount equal to the fair market
value of the restricted  stock at the time of receipt,  less any amount paid for
the shares.  If the Section 83(b)  election is made, the holder is not allowed a
deduction  in the event  that the  shares  are  subsequently  forfeited.  If the
election is not made, the holder will generally recognize ordinary income on the
date that the  restricted  stock is no longer  subject to a substantial  risk of
forfeiture,  in an amount equal to the fair market value of those shares on that
date,  less any amount  paid for the shares.  At the time the holder  recognizes
ordinary  income,  the Company  generally is entitled to a deduction in the same
amount.  Generally,  upon a sale or other  disposition of restricted  stock with
respect to which the holder has  recognized  ordinary  income  (i.e.,  a Section
83(b) election was previously made) or the restrictions have lapsed,  the holder
recognizes capital gain or loss in an amount equal to the



difference between the amount of that sale or other disposition and the holder's
basis in those shares.

Performance Grants

     A  participant  generally  will not  recognize  income  upon the grant of a
performance  award. Upon payment of the performance  grant, the participant will
recognize  ordinary  income in an amount  equal to the cash  received or, if the
performance  grant is  payable in Common  Stock,  the fair  market  value of the
Common Stock  received.  When the  participant  recognizes  ordinary income upon
payment of a performance  award, the Company will generally be entitled to a tax
deduction in the same amount.

Section 162(m)

     With certain  exceptions,  Section  162(m) of the Code limits the Company's
deduction  for  compensation  in excess of  $1,000,000  paid to certain  covered
employees  (generally our chief executive  officer and three other  highest-paid
executive  officers).  Compensation  paid to covered employees is not subject to
the  deduction  limitation  if it  is  considered  "qualified  performance-based
compensation"  within the  meaning of Section  162(m) of the Code.  The  Company
believes that stock options and  performance  grants  (intended to be treated as
qualified  performance-based  compensation  as defined  in the Code)  granted to
covered employees under the 2006 Plan will satisfy the requirements of qualified
performance-based  compensation, and therefore the Company will be entitled to a
deduction with respect to such awards.

Section 409A

     Participation  in and  compensation  paid under the Plans may result in the
deferral of  compensation  that is subject to the  requirements  of Code Section
409A.  Failure to meet certain  requirements  under that section could result in
the compensation being subject to immediate taxation and tax penalties.

     Awards of stock options and performance  units under the Plans may, in some
cases,   result  in  the  deferral  of  compensation  that  is  subject  to  the
requirements of Section 409A. Awards under the Plans are intended to comply with
Section  409A,  the  regulations  issued  thereunder  or an  exception  thereto.
Notwithstanding,  Section 409A of the Code may impose upon a participant certain
taxes or interest charges for which the participant is responsible. Section 409A
does not impose any  penalties  on the Company and does not limit the  Company's
deduction with respect to compensation paid to a participant.

     Because  of  the  complexity  of  the  federal  income  tax  laws  and  the
possibility of changes therein, and because the tax consequences to a particular
optionee or  participant  will at least in part depend upon his or her  personal
financial situation, optionees and other participants are urged to consult their
personal tax  advisors  before  exercising  their  options or  reselling  shares
acquired  under the 1985  Plan,  the 1998 Plan or the 2006 Plan.  Optionees  and
other  participants  should also consult  their  personal tax advisors as to the
state, local and federal estate tax consequences of such transactions.



                            OUTSTANDING STOCK OPTIONS

     The following  table sets forth  information  concerning  the stock options
outstanding  at the date of this  Prospectus  under  the 1985  Plan and the 1998
Plan. No options are outstanding under the 2006 Plan.

                  Per Share                 Expiration
Grant Date      Exercise Price               Date (1)            Percent Vested
----------      --------------               --------            --------------
 12/16/98          6.00 (2)                  12/15/08                 100
 10/19/99          5.375                     10/18/09                 100
 03/01/00          4.44 (2)                  02/28/10                 100
 05/10/00          3.625                     05/09/10                 100
 02/02/01          2.75                      02/01/11                 100
 05/09/01          3.65                      05/08/11                 100
 05/15/02          5.50                      05/14/12                 100
 07/26/02          4.30                      07/25/12                 100
 12/10/02          4.10                      12/09/12                 100
 05/13/03          4.23                      05/12/13                 100
 05/26/04          7.81                      05/25/14                 100
 10/22/04          8.01 (2)                  10/21/14                 75
 12/13/04          9.30 (2)                  12/12/14                 75
 02/16/05          9.29                      02/15/15                 75
 05/25/05          8.97                      05/24/15                 100
 12/05/05          14.77                     12/04/15                 50

-----------------
(1) Unless  terminated on an earlier date as a result of termination of service,
death or  permanent  disability,  as more  fully set  forth in the stock  option
agreements.
(2) Granted under the 1985 Plan.

     As of May 28, 2008,  options for 1,466,480  shares had been exercised under
the 1985 Plan,  options for  636,125  shares had been  exercised  under the 1998
Plan, and no options had been exercised under the 2006 Plan.



                          OUTSTANDING RESTRICTED STOCK

     The following table sets forth information  concerning the restricted stock
outstanding at the date of this Prospectus issued under the 2006 Plan.

             Issue Date                Percent Vested             Final Vesting
             ----------                --------------             -------------

             5/24/06 (1)                     100                     5/24/06
             5/23/07 (1)                     100                     5/23/07
             5/28/08 (1)                     100                     5/28/08
             3/6/08 (2)                      100                     3/6/08
             3/6/08 (3)                     - 0 -                    3/6/12

-----------------
(1) Issued to directors.
(2) Issued as awards under the Company's  2005 Three Year Incentive Plan and not
voluntarily transferable until May 1, 2010.
(3) This stock is nonvoting and not dividend eligible until vested.


                       OUTSTANDING PERFORMANCE SHARE UNITS

     On March 6, 2008 the Company  issued 23,273  performance  share units to 11
key  employees  under  the 2006  Plan.  After a  three-year  performance  period
2008-2010,  these  units will be  converted  into  Common  Stock  based upon the
Company's  average  return  on  invested  capital  (ROIC)  over the  three  year
performance  period.  The number of shares to be issued to a participant will be
determined by multiplying his or her performance  share units by the "percent of
performance  share units earned" that corresponds to the Company's  average ROIC
for the three year performance period as follows:

                                        Return on Invested Capital
                         -------------------------------------------------------
                                                          Percent of Performance
Level of Performance     Average ROIC (%)                 Share Units Earned (%)
--------------------     ----------------                 ----------------------

Below threshold          Below 12                                  - 0 -
Threshold                Equal to 12                                 50
Target                   Equal to 16                                100
Outstanding              Equal to or Greater than 20                200



                         CERTAIN SELLING SECURITYHOLDERS

     The following  table sets forth  information as of the date of this amended
Prospectus concerning the officers and directors of the Company who hold options
granted under the 1985 Plan,  the 1998 Plan or the 2006 Plan,  restricted  stock
acquired  under the 2006 Plan,  performance  share units  awarded under the 2006
Plan, or shares acquired under any of the Plans.  See  "Outstanding  Performance
Share  Units"  herein.  Shares of Common  Stock  acquired by such  officers  and
directors under any of those Plans,  through the exercise of stock options or an
award of restricted stock, may be resold by them using this amended Prospectus.



                                                                         

                                                          Common       Common
                                                          Shares       Shares        Performance
Name                 Position With The Company            Owned(1)     Optioned      Share Units
----                 -------------------------            --------     --------      -----------

Merry L. Brumbaugh   Vice President - Tubular Products       3,130        3,250           1,195
Samuel K. Fisher     Senior Vice President - Rail           12,435         ----           2,053
                     Products
Donald L. Foster     Senior Vice President -                 2,225       16,250           2,053
                     Construction Products
Lee B. Foster II     Director, Chairman of the Board       136,068       50,000            ----
Stan L. Hasselbusch  President and Chief Executive          69,229       20,000           8,540
                     Officer
Kevin R. Haugh       Vice President - Concrete Products        399         ----           1,195
John F. Kasel        Senior Vice President - Operations      2,940       12,500           2,053
                     and Manufacturing
Brian H. Kelly       Vice President - Human Resources          545         ----           1,195
Gregory W. Lippard   Vice President - Rail Product Sales     2,323         ----           1,195
Henry J. Massman IV  Director                               21,329       39,570            ----
G. Thomas McKane     Director                                8,750         ----            ----
Peter McIlroy II     Director                                1,750         ----            ----
Diane B. Owen        Director                               17,296       10,000            ----
Linda K. Patterson   Controller                              4,298       10,000             546
John W. Puth         Director                               10,346       30,000            ----
William H. Rackoff   Director                               16,996       30,000            ----
Suzanne B. Rowland   Director                                2,250         ----            ----
David J. Russo       Senior Vice President, Chief            6,746       11,000           2,053
                     Financial Officer and Treasurer
David L. Voltz       Vice President, General Counsel and     4,353       16,000           1,195
                     Secretary
-----------------
(1) Includes both vested and unvested shares.





                                  LEGAL OPINION

     The  validity of the Common Stock  offered  hereby has been passed upon for
the Company by its  counsel,  Buchanan  Ingersoll  & Rooney PC, 20th Floor,  One
Oxford Centre, Pittsburgh, Pennsylvania 15219.


                       DOCUMENTS INCORPORATED BY REFERENCE

     The Company's  Annual  Report on Form 10-K for the year ended  December 31,
2007,  its  Quarterly  Report on Form 10-Q for the quarter ended March 31, 2008,
its Current  Reports on Form 8-K dated March 1, March 11, March 12, April 22 and
May 2, 2008,  and the  descriptions  of its Common  Stock,  $.01 par value,  and
Common Stock purchase rights contained in the Company's Registration  Statements
on Form 8-A as may from time to time be amended,  filed with the  Securities and
Exchange  Commission,  are incorporated  herein by reference.  In addition,  all
documents filed by the Company pursuant to Sections 13(a), 13(c), 14 or 15(d) of
the Securities  Exchange Act of 1934 after the date of this amended  Prospectus,
and  prior to the  filing  of a  post-effective  amendment  to the  Registration
Statement of which this amended Prospectus forms a part which indicates that all
securities   covered  by  this  amended  Prospectus  have  been  sold  or  which
deregisters  all such securities  then remaining  unsold,  shall be deemed to be
incorporated herein by reference and to be a part hereof from the date of filing
of such  documents.  The Company  will  provide  without  charge to each person,
including any beneficial  owner,  to whom this amended  Prospectus is delivered,
upon  written  or  oral  request,  a copy  of  any  and  all  of  the  documents
incorporated  by  reference  herein (not  including  exhibits to such  documents
unless such  exhibits  are  specifically  incorporated  by  reference  into such
documents).  Requests for such  documents  should be directed to David L. Voltz,
Secretary,  L. B. Foster  Company,  415  Holiday  Drive,  Pittsburgh,  PA 15220,
telephone number (412) 928-3431.



                              L. B. FOSTER COMPANY

              1985 Long-Term Incentive Plan as Amended and Restated
              1998 Long-Term Incentive Plan as Amended and Restated
               2006 Omnibus Incentive Plan as Amended and Restated

No person is authorized to give any  information  or to make any  representation
not contained in this Prospectus in connection with the offer contained  herein,
and if given or made, such  information or  representation  not contained herein
must  not be  relied  upon  as  having  been  authorized  by the  company.  This
Prospectus does not constitute an offer of stock in any jurisdiction  where such
offer would be unlawful.  The delivery of this  Prospectus  at any time does not
imply that the  information  herein is correct as of any time  subsequent to its
date.

                                TABLE OF CONTENTS
                                                                          Page
Available Information..................................................     2
The 1985 Plan..........................................................     2
    Eligibility........................................................     3
    Administration.....................................................     3
    Stock Option Grants ...............................................     4
    Terms and Provisions of Stock Options .............................     4
    Exercise of Stock Options and Disposition of Shares................     5
    Miscellaneous Provisions ..........................................     6
The 1998 Plan..........................................................     7
    Administration.....................................................     7
    General............................................................     7
    Automatic Stock Options............................................     8
    Discretionary Stock Options........................................     8
    Amendments and Termination.........................................     9
The 2006 Plan..........................................................    10
    Administration.....................................................    10
    Types of Awards....................................................    10
    Participation in the Plan..........................................    10
    Maximum Number of Shares that May be Issued; Award Limitations.....    11
    Stock Options and Restricted Stock Awards..........................    11
    Performance Grants.................................................    12
    Amendments and Termination.........................................    13
    Changes in Stock...................................................    13
    Transferability....................................................    13
    Plan Termination...................................................    14
Certain Federal Income Tax Consequences................................    14
Outstanding Stock Options..............................................    16
Outstanding Restricted Stock...........................................    17
Outstanding Performance Share Units....................................    17
Certain Selling Securityholders........................................    18
Legal Opinion..........................................................    19
Documents Incorporated By Reference ...................................    19


                      Amended Prospectus dated May 29, 2008



                                    PART II.

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.    Incorporation of Documents by Reference.

           The required statements are included in the Prospectus.

Item 4.    Description of Securities.

           The Common Stock is registered under Section 12 of the Exchange Act.

Item 5.    Interests of Named Experts and Counsel.

           None

Item 6.    Indemnification of Directors and Officers.

           Section 6.01 of the Company's By-Laws provides, in part, that the
Company shall, to the fullest extent permitted by Pennsylvania law, indemnify
its officers and directors in connection with any actual, threatened or
completed action, suit or proceeding arising out of their service to the Company
or to another entity at the request of the Company.

Item 7.    Exemption from Registration Claimed.

           No "restricted" securities will be reoffered or resold.

Item 8.    Exhibits.

           The following exhibits are filed as part of this amendment to the
registration statement:

           5.1        Opinion and consent of Buchanan Ingersoll & Rooney PC,
                      filed herewith.

           10.35.1    2006 Omnibus Incentive Plan, as Amended and Restated March
                      6, 2008, filed as Exhibit 10.57.1 to Current Report on
                      Form 8-K dated March 12, 2008 and incorporated herein by
                      reference.

           23.1       Consent of Independent Auditors, filed herewith.

           24         Power of Attorney to sign this Amendment, appearing on
                      signature page of initial Registration Statement and
                      incorporated herein by reference.



                                   SIGNATURES

     Pursuant to the  requirements of the Securities Act of 1933, the registrant
certifies  that it has  reasonable  grounds to believe  that it meets all of the
requirements  for filing on Form S-8 and has duly caused this  Amendment  to the
Registration Statement to be signed on its behalf by the undersigned,  thereunto
duly authorized, in the City of Pittsburgh, Commonwealth of Pennsylvania, on May
28, 2008.


                                                         L. B. FOSTER COMPANY
                                                         (Registrant)

                                                     By: /s/ David J. Russo
                                                         -----------------------
                                                         David J. Russo
                                                         Senior Vice President



     Pursuant to the  requirements of the Securities Act of 1933, this Amendment
to the  Registration  Statement has been signed by the following  persons in the
capacities and on the date indicated.


Signature              Title
---------              -----


Stan L. Hasselbusch    President, Chief Executive  )
                       Officer and Director        )
                                                   )
                                                   )
Lee B. Foster II       Director                    )
                                                   )
                                                   )       By: /s/David J. Russo
                                                   )           -----------------
                                                   )           David J. Russo
G. Thomas McKane       Director                    )           Attorney-in-Fact
                                                   )
                                                   )       Dated:  May 28, 2008
Diane B. Owen          Director                    )
                                                   )
                                                   )
William H. Rackoff     Director                    )
                                                   )
                                                   )
David J. Russo         Senior Vice President and   )
                       Chief Financial Officer     )