Exhibit 23.1



            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


We consent to the incorporation by reference in  Post-Effective  Amendment No. 1
to the Registration  Statement (Form S-8) pertaining to the L. B. Foster Company
2006 Omnibus  Incentive  Plan,  as Amended and  Restated  May 29,  2008,  of our
reports  dated  March  6,  2008,  with  respect  to the  consolidated  financial
statements  and schedule of L. B. Foster  Company  included in its Annual Report
(Form  10-K) for the year  ended  December  31,  2007 and the  effectiveness  of
internal  control over financial  reporting of L. B. Foster Company,  filed with
the Securities and Exchange Commission.




                                            /s/ Ernst & Young LLP
                                            ---------------------
                                                Ernst & Young LLP


Pittsburgh, Pennsylvania
May 27, 2008