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  <import namespace="http://xbrl.sec.gov/country/2013-01-31" schemaLocation="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd" />
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  <element id="fstr_SupplierRelationshipsMember" name="SupplierRelationshipsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_RailProductsSegmentMember" name="RailProductsSegmentMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_ConstructionProductsSegmentMember" name="ConstructionProductsSegmentMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_TubularProductsSegmentsMember" name="TubularProductsSegmentsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_MontrealBenefitPlanMember" name="MontrealBenefitPlanMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_DefinedContributionPlanNumber" name="DefinedContributionPlanNumber" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
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  <element id="fstr_DefinedBenefitPlanNumber" name="DefinedBenefitPlanNumber" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_NatwestBankMember" name="NatwestBankMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_PncBankNBankOfAmericaNWellsFargoBankNAndCitizensBankOfPennsylvaniaMember" name="PncBankNBankOfAmericaNWellsFargoBankNAndCitizensBankOfPennsylvaniaMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
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  <element id="fstr_CapitalLeasesMonthlyRent" name="CapitalLeasesMonthlyRent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
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  <element id="fstr_ExcessOfBookLifoOverTaxLifoValue" name="ExcessOfBookLifoOverTaxLifoValue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="fstr_ImprovementsToLandAndLeaseholdsMember" name="ImprovementsToLandAndLeaseholdsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_MachineryAndEquipmentIncludingEquipmentUnderCapitalizedLeasesMember" name="MachineryAndEquipmentIncludingEquipmentUnderCapitalizedLeasesMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_CapitalLeasedLandMember" name="CapitalLeasedLandMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_PriorRevolvingCreditFacilityMember" name="PriorRevolvingCreditFacilityMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_RevolvingCreditFacilityAvailableToCanadianBorrowersMember" name="RevolvingCreditFacilityAvailableToCanadianBorrowersMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_NatwestBankOutstandingGuaranteesMember" name="NatwestBankOutstandingGuaranteesMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_StockIssuedDuringPeriodSharesTreasuryStockReissuedCommonSharesOutstanding" name="StockIssuedDuringPeriodSharesTreasuryStockReissuedCommonSharesOutstanding" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_CommonStockOutstandingSharesAcquiredForTreasury" name="CommonStockOutstandingSharesAcquiredForTreasury" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_OmnibusPlanMember" name="OmnibusPlanMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_FullyVestedStockAwardsMember" name="FullyVestedStockAwardsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_GrantedToNonEmployeeDirectorsMember" name="GrantedToNonEmployeeDirectorsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_RistrictedStockAndPerformanceSharesCombinedMember" name="RistrictedStockAndPerformanceSharesCombinedMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_OtherPostRetirementBenefitPlanMember" name="OtherPostRetirementBenefitPlanMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_ScheduleOfFutureMinimumPaymentsUnderCapitalAndOperatingLeases" name="ScheduleOfFutureMinimumPaymentsUnderCapitalAndOperatingLeases" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_Customer1Member" name="Customer1Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_UnitedStatesMember" name="UnitedStatesMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_CanadaMember" name="CanadaMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_UnitedKingdomMember" name="UnitedKingdomMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_OtherSegReportingMember" name="OtherSegReportingMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_RailDistributionProductsMember" name="RailDistributionProductsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_PilingProductsMember" name="PilingProductsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_RailTechnologiesProductsMember" name="RailTechnologiesProductsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_CxtConcreteTieProductsMember" name="CxtConcreteTieProductsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_CxtConcreteBuildingProductsMember" name="CxtConcreteBuildingProductsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_OtherProductsMember" name="OtherProductsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_CapitalChargesRate" name="CapitalChargesRate" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_SegmentReconcilingItemsLifoMember" name="SegmentReconcilingItemsLifoMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_December2013ShareRepurchaseProgramMember" name="December2013ShareRepurchaseProgramMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_MutualFundsMember" name="MutualFundsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_AssetAllocationsCommonStockMember" name="AssetAllocationsCommonStockMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_NonDomesticMember" name="NonDomesticMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_UprrMember" name="UprrMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_UnallocatedCorporateCostsAndExpenses" name="UnallocatedCorporateCostsAndExpenses" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="fstr_ScheduleOfRevenuesByMajorProductLineTableTextBlock" name="ScheduleOfRevenuesByMajorProductLineTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentForIncentiveAwardsExpectedToVest" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentForIncentiveAwardsExpectedToVest" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentForIncentiveAwardsExpectedToVestWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentForIncentiveAwardsExpectedToVestWeightedAverageGrantDateFairValue" nillable="true" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_ConcreteTiesManufactured" name="ConcreteTiesManufactured" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_PostRetirementBenefitPlanNumber" name="PostRetirementBenefitPlanNumber" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_FwoMember" name="FwoMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_AlleghenyRailProductsMember" name="AlleghenyRailProductsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_LbPipeJvMember" name="LbPipeJvMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_SegmentReconcilingItemsFinancingAgreementsMember" name="SegmentReconcilingItemsFinancingAgreementsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_WorkingCapitalAdjustment" name="WorkingCapitalAdjustment" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="fstr_EarnOutProvisionProceeds" name="EarnOutProvisionProceeds" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="fstr_BusinessAcquisitionsProFormaGrossProfit" name="BusinessAcquisitionsProFormaGrossProfit" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="fstr_TewHoldingsLtdMember" name="TewHoldingsLtdMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_ChemtecEnergyServicesLlcMember" name="ChemtecEnergyServicesLlcMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_CarrConcreteMember" name="CarrConcreteMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_InspectionOilfieldServicesIosMember" name="InspectionOilfieldServicesIosMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_PncBankN.a.BankOfAmericaN.a.WellsFargoBankN.a.CitizensBankOfPennsylvaniaAndBranchBankingAndTrustCompanyMember" name="PncBankN.a.BankOfAmericaN.a.WellsFargoBankN.a.CitizensBankOfPennsylvaniaAndBranchBankingAndTrustCompanyMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_LbPipeJvEquityMethodInvestmentMember" name="LbPipeJvEquityMethodInvestmentMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_NetInvestmentInDirectFinancingLeaseMember" name="NetInvestmentInDirectFinancingLeaseMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_TewPlusLtdMember" name="TewPlusLtdMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_EquityLossIncomeAndRemeasurementGain" name="EquityLossIncomeAndRemeasurementGain" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="fstr_AccountingStandardsUpdate201517Member" name="AccountingStandardsUpdate201517Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_December2015ShareRepurchaseProgramMember" name="December2015ShareRepurchaseProgramMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_BusinessCombinationStepAcquisitionEquityInterestRemainingInAcquireePercentage" name="BusinessCombinationStepAcquisitionEquityInterestRemainingInAcquireePercentage" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <element id="fstr_TestAndInspectionServicesMember" name="TestAndInspectionServicesMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_PriorToMarch2015Member" name="PriorToMarch2015Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="fstr_March2015Member" name="March2015Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
</schema>
