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)  November 7, 2005
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                              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
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                                      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 Entry Into a Material Definitive Agreement - ------------------------------------------------------------ On November 7, 2005, the Registrant's wholly owned subsidiary, CXT Incorporated ("CXT") executed an amendment (the "Amendment"), dated as of October 28, 2005, to the agreement originally dated January 21, 2005 between CXT and the Union Pacific Railroad ("UP"). The agreement deals with an arrangement under which CXT manufactures and sells concrete ties to the UP. The ties primarily are to be produced at facilities located in Grand Island, Nebraska and Tucson, Arizona. The Amendment extends the term of the agreement for the Grand Island facility from December 31, 2009 to December 31, 2010. The Amendment provides that from January 1, 2005 through December 31, 2005, CXT shall provide the UP with 300,000 concrete ties, 55,000 of which will be manufactured at CXT's Spokane, Washington facility. The Amendment provides that CXT shall install a fourth tie manufacturing line at its Grand Island facility. To partially defray the costs of the new line, the UP shall pay CXT a surcharge for ties produced at the Grand Island, Nebraska facility until CXT receives a stipulated amount from such surcharges. The prices payable by UP, if UP annually purchases a stipulated amount of ties from the Grand Island facility, have been reduced by $.50/tie. If during any calendar year, both (a) UP purchases 300,000 or more ties produced at the Grand Island facility, and (b) more than 375,000 ties are produced at the Grand Island facility and sold to UP and any third parties, CXT shall pay to UP an amount equal to $.50 multiplied by the lesser of (i) the total ties produced and sold to UP and any third parties during such year, minus 375,000 ties or (ii) the total ties produced and sold to third parties during such year. The Amendment places various restrictions on CXT's ability to sell ties to third parties. The UP has been CXT's primary customer for concrete ties and the Registrant's largest customer for insulated rail joints. The UP also purchases rail products and piling from the Registrant and is, overall, the Registrant's single largest customer. Item 9.01 Financial Statements and Exhibits - --------------------------------------------------- ^ 10.21.1 Amendment dated October 28, 2005 between CXT Incorporated and Union Pacific Railroad Company ^ Portions of this Exhibit have been omitted pursuant to a confidential treatment request.

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: November 14, 2005 /s/David J. Russo ------------------- David J. Russo Senior Vice President, Chief Financial Officer and Treasurer

Exhibit Index - ------------- ^ 10.21.1 Amendment dated October 28, 2005 between CXT Incorporated and Union Pacific Railroad Company ^ Portions of this Exhibit have been omitted pursuant to a confidential treatment request.

                                                                 Exhibit 10.21.1

                             AMENDMENT TO AGREEMENT


     THIS AMENDMENT TO AGREEMENT is entered into as of this 28th day of October,
2005, by and between UNION PACIFIC  RAILROAD COMPANY ("UP") and CXT INCORPORATED
("CXT").

     WHEREAS,  UP and CXT entered into an Agreement  dated January 21, 2005 (the
"Original Agreement"), pursuant to which UP agreed to purchase from CXT, and CXT
agreed to sell to UP, various types of concrete ties; and

     WHEREAS, UP and CXT wish to amend the Original Agreement.

     NOW,  THEREFORE,  for and in consideration of the foregoing  premises,  the
mutual promises and conditions herein contained, and for other good and valuable
consideration,  the  receipt,  sufficiency  and  adequacy  of which  are  hereby
acknowledged by the parties, the parties hereby agree as follows:

SECTION 1.        AMENDMENT OF ORIGINAL AGREEMENT.
                  -------------------------------

     Effective as of the date first written hereinabove,  the Original Agreement
is amended as follows:

    A.   Section 2.1 is deleted in its entirety and replaced by the following:

     "Section 2.1  Transaction;  Production  for Third  Parties;  Right of First
Refusal; Most Favored Nation Pricing. CXT agrees to sell to UP, and UP agrees to
purchase from CXT,  Ties upon the terms and  conditions  set forth  herein.  CXT
shall have the right to manufacture concrete railroad ties and other products at
the Plants for sale to third parties; provided, however that:

      (a)  such  manufacturing   shall  not  interfere  with  CXT  manufacturing
           Ties reasonably required by UP pursuant to the Annual Estimates (as
           such term is defined in Section 2.3, below);

      (b)  CXT may not sell  concrete ties produced at either Plant to any third
           party during any year unless it first offered UP an opportunity  to
           purchase,  at UP's sole election,  all or any portion of such ties at
           the Purchase Prices payable by UP to CXT under  Section  2.4 for Ties
           Produced at the Plant at which  such  ties  were  produced.  Any such
           offer  to UP (x)  shall be in writing,  (y) may  not be  made by CXT
           prior  to  October  31 of the  year immediately preceding the year in
           which the third party sale is proposed to take place,  and (z) if not
           accepted by UP within ten (10) days  following its  receipt  shall be
           deemed  declined  by UP.  The  parties  agree  that, notwithstanding
           UP's acceptance of

an offer, the volume of UP's purchases pursuant to such offer may vary from it by up to ten percent (10%) up or down; (c) CXT may sell to third parties during any year only those ties, if any, that UP declined to purchase pursuant to Subsection 2.1(b); (d) CXT shall give UP's then existing Tie production schedule priority over the production schedule proposed for any ties to be sold to a third party pursuant to Subsection 2.1(c); and (e) should CXT sell concrete ties manufactured at either Plant, substantially similar to any Tie (excluding shoulders and fastening systems), to any third party for a total price (including all rebates, discounts, service charges, etc.) which is less (the "Lesser Third Party Price") than the Purchase Prices (as such term is defined in Section 2.4, below) then payable by UP to CXT for Ties purchased at an annual rate of 300,000 Ties Produced from the applicable Plant, then (x) the Standard Tie Prices and/or Special Tie Prices (as such terms are defined in Section 2.4, below), as applicable, shall be reduced to the Lesser Third Party Price during the period of the effectiveness of such Lesser Third Party Price and (y) the ties produced for such third parties shall count toward the applicable per Plant Annual Minimum (as such term is defined in Section 2.3, below). B. In the fourth and fifth lines of the first paragraph of Section 2.2, the words "December 31, 2009" are deleted and replaced with the words "December 31, 2010". C. The third sentence of the first paragraph of Section 2.3 is deleted in its entirety and replaced with the following two sentences: "On or before December 1 of each year during the term of this Agreement UP will provide CXT a non-binding estimate (the "Annual Estimate") of the number of Ties Produced at each Plant during the next following Program Year that it estimates it will purchase from CXT. The number of Ties actually purchased by UP from either or both Plants during any Program Year(s) may, at UP's option, be more or less than the number estimated in the applicable Annual Estimate subject to such Plant's production capability during such Program Year or any subsequent Program Year and after deducting sales to third parties permitted under Section 2.1." D. The fifth paragraph of Section 2.3 is deleted in its entirety and replaced with the following two paragraphs:

"Initially, the updated GI Plant was sized to Produce approximately 375,000 Ties per year (31,250 Ties per month), on three production lines, assuming 350 days per year of production. CXT will add a fourth line at the GI Plant that will expand its Production to a minimum of 460,000 Ties per year (38,333 Ties per month). UP will contribute a total of * of the cost to add the fourth line at the GI Plant (the "Fourth Line Cost") as follows: CXT shall initially pay one hundred percent (100%) of the Fourth Line Cost. The GI Standard Tie Price for Ties Produced at the GI Plant shall be increased by a surcharge of * per Tie until the total of such surcharges received by CXT equals *. "Prior to the shutdown of the GI Plant for installation of the New Technology, CXT will Produce Ties at the GI Plant at a rate of 24,000 Ties per month. To provide a "seamless" supply of Ties to UP notwithstanding (a) the fact that the New Technology may not be at full capacity at the GI Plant until ten (10) months, subject to extension as provided above, following January 21, 2005, (i.e., November 21, 2005, subject to extension), and (b) that it is anticipated that the GI Plant will be shut down for approximately two (2) months during the installation of the New Technology. During the period January 1, 2005 through December 31, 2005, CXT will Produce and/or provide a total of 300,000 Ties for sale to UP as follows: A. 245,000 Ties at the GI Purchase Price will be available at the GI Plant for shipment; B. 20,000 Ties Produced at CXT's plant in Spokane, WA (the "Spokane Plant") which it will sell and ship to UP fob the GI Plant at the Purchase Prices then payable by UP to CXT for Ties purchased at an annual rate of 300,000 Ties Produced at the GI Plant. UP will have no responsibility for loss of or damage to such Ties while in transit from the Spokane Plant to the GI Plant as described above in this Section 2.3; and C. 35,000 Ties at the GI Purchase Price will be Produced and available at the Spokane Plant (the "Spokane Ties"). The Spokane Ties may be purchased by UP after CXT has produced the 20,000 Ties described in Subsection B., above, subject to the limitation that UP shall schedule its purchases of the Spokane Ties so that it can purchase them based on CXT's maximum Spokane Plant production rate of 10,000 Ties per month. The Spokane Ties will be included for purposes of determining the GI Standard Tie Price in accordance with Section 2.4(a), below. - ------------------------ * Indicates the location of confidential data which has been omitted and filed separately with the Securities and Exchange Commission.

E. The following is added as a new paragraph at the end of Section 2.3: "If during any Program Year, both (a) UP purchases 300,000 or more Ties Produced at the GI Plant, and (b) more than 375,000 ties are produced at the GI Plant and sold to UP and any third parties, CXT shall pay to UP an amount equal to $.50 multiplied by the lesser of (i) the total ties produced and sold to UP and any third parties during such Program Year, minus 375,000 ties, or (ii) the total ties produced and sold to third parties during such Program Year." F. Subsections (a) and (b) of the first paragraph of Section 2.4 are deleted in their entirety and replaced with the following: "(a) GI Standard Tie Prices: The GI Standard Tie Prices for Ties Produced at the GI Plant during 2005 are the amounts set forth below, adjusted pursuant to Section 2.4(f), below (production amounts include Ties Produced for sale to UP): ================= ============== =============== =============== =============== ============== =============== =============== 100,000 200,000 250.000 300,000 - 350,000 - 400,000 450,000 500,000+ Ties (minimum) - -249,999 -299,999 Ties 349,999 Ties 399,999 Ties -449,999 -499,999 Ties Produced per 199,999 Ties Ties Produced per Produced per Produced per Ties Produced per Year Produced per Produced per Year Year Year Produced per Year Year Year Year - ----------------- -------------- --------------- --------------- --------------- -------------- --------------- --------------- * * * * * * * * ================= ============== =============== =============== =============== ============== =============== =============== If during any year the actual number of Ties Produced for sale to UP is less than the Annual Estimate for such year, as modified by UP from time to time (the "Modified Annual Estimate"), due to any failure on the part of CXT, the GI Standard Tie Price for Ties sold to UP during such year shall be calculated as if such Production were at the level specified by UP in the Modified Annual Estimate. Any such Modified Annual Estimates shall not exceed the remaining monthly capacity of the Plant under Section 2.3, minus third party sales commitments permitted under Section 2.1. "(b) Tucson Standard Tie Prices: The Tucson Standard Tie Prices for Ties Produced at the Tucson Plant during 2005 are the amounts set forth below, adjusted pursuant to Section 2.4(f), below (production amounts include Ties Produced for sale to UP): - ------------------------ * Indicates the location of confidential data which has been omitted and filed separately with the Securities and Exchange Commission.

====================== ================== ================= ================= ================= 100,000 (minimum) - 200,000 -299,999 300,000 400,000 500,000+ Ties 199,999 Ties Ties Produced -399,999 Ties -499,999 Ties Produced per Produced per Year per Year Produced per Produced per Year Year Year - ---------------------- ------------------ ----------------- ----------------- ----------------- * * * * * ====================== ================== ================= ================= ================= If during any year the actual number of Ties Produced for sale to UP is less than the Annual Estimate for such year, as modified by UP from time to time (the "Modified Annual Estimate"), due to any failure on the part of CXT, the Tucson Standard Tie Price for Ties sold to UP during such year shall be calculated as if such Production were at the level specified by UP in the Modified Annual Estimate. Any such Modified Annual Estimates shall not exceed the remaining monthly capacity of the Plant under Section 2.3, minus third party sales commitments permitted under Section 2.1." F. The first sentence of Section 2.6 is deleted in its entirety and replaced with the following: "No less than thirty (30) days prior to the start of each quarter of each Program Year UP will provide to CXT, and CXT shall accept and honor, purchase orders for each of the Plants for each month of such quarter." G. The fourth sentence of Section 2.6 is deleted in its entirety and replaced with the following: "Unless previously agreed to by CXT in writing, UP may not issue any monthly purchase order for Ties in an amount in excess of the applicable monthly Production amounts set forth in Section 2.3, after deducting sales to third parties permitted under Section 2.1." SECTION 2. EFFECT OF AMENDMENT ON ORIGINAL AGREEMENT. ----------------------------------------- Except as otherwise expressly provided in this Amendment to Agreement, the terms and conditions of the Original Agreement shall remain in full force and effect. - ------------------------ * Indicates the location of confidential data which has been omitted and filed separately with the Securities and Exchange Commission.

IN WITNESS WHEREOF, the parties hereto have set their hands on the date first hereinabove written. CXT INCORPORATED By:/s/Stan L. Hasselbusch (11/7/05) ------------------------------------ Its: Chief Executive Officer --------------------------------- UNION PACIFIC RAILROAD COMPANY By:/s/Thomas M. Holmes --------------------------------- Its: General Director-Engineering Purchasing --------------------------------------------