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      February 9, 2007 (February 8, 2007)
                 reported)                   -----------------------------------


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


Pennsylvania                          000-10436                  25-1324733
--------------------------------------------------------------------------------
 (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
CFR240.14a-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         Entry Into a Material Definitive Agreement


Effective   February  8,  2007,  the  Registrant  and  its   subsidiaries,   CXT
Incorporated,  Natmaya,  Inc. and Fosmart,  Inc.  (collectively  the  "Company")
executed the Third  Amendment  to the  Revolving  Credit and Security  Agreement
originally dated May 5, 2005 (the  "Agreement') by and among the Company and PNC
Bank  National   Association,   as  lender  and  agent,  LaSalle  Bank  National
Association and First  Commonwealth Bank. The Third Amendment is attached hereto
as Exhibit 10.0.3 and incorporated herein in its entirety.

Under the Third  Amendment,  debt  placed  in LIBOR  tranches  will be priced at
prevailing LIBOR rates, plus 1.25%. Debt placed in other tranches will be priced
at the  prevailing  prime rate minus 1.00%.  The "Facility  Fee" has been set at
..25%.

The Third  Amendment  also  permits the Company to use various  additional  debt
instruments to finance  capital  expenditures,  outside of borrowings  under the
Agreement.  The amount of miscellaneous  debt the Company may incur, in addition
to debt under the Agreement and certain  specifically  permitted  debt, has been
increased to $10M. The Third Amendment  increased the Company's permitted annual
capital expenditures to $12M effective for the 2006 fiscal year.


Item 9.01         Financial Statements and Exhibits


(c)      Exhibits

10.0.3            Third Amendment dated February 8, 2007 to Revolving Credit
                  and Security Agreement



                                   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:  February 9, 2007
       ----------------
                                          /s/David J. Russo
                                          -----------------
                                          David J. Russo
                                          Senior Vice President,
                                          Chief Financial Officer and Treasurer



                                  EXHIBIT INDEX


10.0.3            Third Amendment dated February 8, 2007 to Revolving Credit
                  and Security Agreement.