UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT
     Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934


 Date of Report (Date of earliest event reported)  May 25, 2005
                                                 -------------------------------

                               L.B. Foster Company
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             (Exact name of registrant as specified in its charter)

         Pennsylvania              000-10436                  25-1324733
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 (State or other jurisdiction     (Commission              (I.R.S. Employer
      of incorporation)           File Number)            Identification No.)

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

 Registrant's telephone number, including area code  412-928-3417
                                                     ---------------------------

                                      None
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         (Former name or former address, if changed since last report.)

 Check the appropriate box below if the Form 8-K filing is intended to
 simultaneously satisfy the filing obligation of the registrant under any of the
 following provisions (see General Instruction A.2. below): 

[ ] Written communications pursuant to Rule 425 under the Securities Act 
     (17 CFR 230.425) 

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act 
     (17 CFR 240.14a-12) 

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
      Act (17 CFR 240.14d-2(b)) 

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
      Act (17 CFR 240.13e-4(c))


Item 1.01

A.       2005 Three Year Incentive Plan

On  May  25,  2005,  the  Registrant's  Board  of  Directors,   upon  the  prior
recommendation  of its Compensation  Committee (the  "Committee"),  approved the
"L.B.  Foster Company 2005 Three Year Incentive Plan" (the "Plan").  The Plan is
designed  to  further   motivate   selected   senior  officers  to  improve  the
Registrant's  performance  over the three year period,  2005 - 2007 (the "Fiscal
Period").

The total amount payable under the Plan is based on a "Performance  Percentage".
The  "Performance  Percentage" is calculated by dividing  Incentive  Income,  as
defined  in the  Plan,  minus  $13,168,000,  by  $10,341,000.  Incentive  Income
essentially is the Registrant's  aggregate pre-tax income for the Fiscal Period,
excluding  income with respect to the  Registrants'  investments  in the Dakota,
Minnesota & Eastern Railroad,  LIFO adjustments or other gains, losses,  charges
or income which the Committee, in its sole discretion, deems extraordinary.

Based  upon  the   Performance   Percentage,   the  maximum  amount  payable  to
participants  is equal to the  corresponding  percentage in the table below (the
"Payment Percentage") multiplied by $1,825,000:
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            --------------------------- -------------------------
              Performance Percentage    Payout Percentage (as %
                   of $1,825,000)
            --------------------------- -------------------------

            --------------------------- -------------------------
            Less than 70%                                    -0-
            --------------------------- -------------------------
            70%                                            10.0%
            --------------------------- -------------------------
            80%                                            30.0%
            --------------------------- -------------------------
            90%                                            62.5%
            --------------------------- -------------------------
            100%                                          100.0%
            --------------------------- -------------------------
            110%                                          112.5%
            --------------------------- -------------------------
            120%                                          130.0%
            --------------------------- -------------------------
            130%                                          150.0%
            --------------------------- -------------------------
            150%                                          200.0%
            --------------------------- -------------------------


The Payout  Percentage shall be adjusted  proportionately  between the levels in
the table to reflect the Performance Percentage actually achieved.

Individual  awards are calculated by multiplying the total amount  available for
awards by a  fraction,  the  numerator  of which is the points  assigned  to the
participant  and the  denominator of which is the sum of all points  assigned to
all participants in the Plan. The initial participants include the President and
Chief Executive  Officer,  5 Senior Vice  Presidents,  4 Vice Presidents and the
Controller. Points have been assigned to these initial participants as follows:

                    President/CEO                      4 Points
                    Sr. Vice President                 2 Points
                    Vice President, Controller         1 Point

There are various eligibility requirements, including that a participant may not
have been terminated for "cause",  as defined in the Plan and that a participant
may not  have  been  terminated  for any  reason  and  received  money  from the
Registrant in connection with such termination. If a participant ceases to be an
employee  of the  Registrant  during the Fiscal  Period (yet  continues  to meet
applicable eligibility  criteria),  the amount of any incentive award payable to
the  participant  shall be determined by the Committee and such payment shall be
deducted from the total amount available for other participants.

Subsequent  participants,  if any,  shall have  points  assigned  to them by the
Committee. If a participant satisfies the eligibility requirements but ceases to
be an employee of the Registrant on or prior to December 31, 2007, the Committee
shall  adjust  such  participant's  points  downward  by  an  amount  which  the
Committee, in its discretion, deems appropriate.

Notwithstanding  any other provisions of the Plan, an incentive award payable to
any  participant  may not exceed twice the incentive  award that would have been
payable  to the  participant  if the  Registrant  had  achieved  a  "Performance
Percentage"  of  100%  and  all  of  the  initial   participants   had  remained
participants for the full Fiscal Period, and no subsequent participants had been
added  to  the  Plan.  In  addition,  if  the  sum of  all  points  assigned  to
participants is less than 19,  incentive  awards payable under the Plan shall be
adjusted downward in amounts  determined by the Committee.  Any amounts not paid
shall remain the Registrant's property.

Upon receiving any necessary approvals from the Registrant's  shareholders,  the
Committee may substitute  restricted shares of the Registrant's common stock for
up to 50% of the incentive awards that
 3

would  otherwise  be  payable  under  the  Plan,   based  upon  the  Committee's
determination of the fair market value of such restricted stock.

Incentive awards shall be paid on or before March 15, 2008.




Item 9.01         Exhibits



10.56             2005 Three Year Incentive Plan



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                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.



                                           L.B. FOSTER COMPANY
                                           (Registrant)


Date:  May 31, 2005
                                           /s/David J. Russo
                                           -------------------------------------
                                           David J. Russo
                                           Senior Vice President
                                           Chief Financial Officer and Treasurer

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Exhibit Index
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Exhibit Number                              Description
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10.56                                       2005 Three Year Incentive Plan