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        <link:definition>021 - Disclosure - Note 3 - Construction Joint Ventures (Tables)</link:definition>   
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        <link:definition>022 - Disclosure - Note 4 - Property and Equipment (Tables)</link:definition>   
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        <link:definition>023 - Disclosure - Note 5 - Derivative Financial Instruments (Tables)</link:definition>   
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        <link:definition>024 - Disclosure - Note 6 - Changes in Accumulated Other Comprehensive Income by Component (Tables)</link:definition>   
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        <link:definition>025 - Disclosure - Note 7 - Income Taxes (Tables)</link:definition>   
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        <link:definition>026 - Disclosure - Note 9 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Tables)</link:definition>  
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        <link:definition>027 - Disclosure - Note 11 - Variable Interest Entities (Tables)</link:definition>   
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        <link:definition>028 - Disclosure - Note 12 - Net Income (Loss) per Share Attributable to Sterling Common Stockholders (Tables)</link:definition>    
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        <link:definition>029 - Disclosure - Note 1 - Summary of Business and Significant Accounting Policies (Details)</link:definition>  
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        <link:definition>030 - Disclosure - Note 2 - Cash and Cash Equivalents and Short-term Investments (Details)</link:definition>    
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        <link:definition>031 - Disclosure - Note 3 - Construction Joint Ventures (Details)</link:definition>    
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        <link:definition>032 - Disclosure - Note 3 - Construction Joint Ventures (Details) - Summary of Joint Venture Condensed Balance Sheet Information Included as Part of Consolidated Financial Statements</link:definition> 
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        <link:definition>033 - Disclosure - Note 3 - Construction Joint Ventures (Details) - Summary of Joint Venture Condensed Income Statement Information Included as Part of Consolidated Financial Statements</link:definition>    
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        <link:definition>034 - Disclosure - Note 4 - Property and Equipment (Details) - Property and Equipment Summary</link:definition>  
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        <link:definition>035 - Disclosure - Note 5 - Derivative Financial Instruments (Details)</link:definition>    
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        <link:definition>036 - Disclosure - Note 5 - Derivative Financial Instruments (Details) - Summary of Derivative Instruments</link:definition>     
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        <link:definition>037 - Disclosure - Note 5 - Derivative Financial Instruments (Details) - Summary of the Effects of Commodity Derivative Instruments on the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss)</link:definition>  
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        <link:definition>038 - Disclosure - Note 6 - Changes in Accumulated Other Comprehensive Income by Component (Details) - Changes in the Balances of Each Component of Accumulated Other Comprehensive Income, Net of Tax</link:definition>  
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        <link:definition>039 - Disclosure - Note 6 - Changes in Accumulated Other Comprehensive Income by Component (Details) - Reclassifcation Out of Component of Accumulated Other Comprehensive Income</link:definition> 
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        <link:definition>040 - Disclosure - Note 7 - Income Taxes (Details)</link:definition>    
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        <link:definition>041 - Disclosure - Note 7 - Income Taxes (Details) - The Income Tax Expense in the Accompanying Condensed Consolidated Financial Statements Consists of the Following</link:definition>    
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        <link:definition>042 - Disclosure - Note 7 - Income Taxes (Details) - Summary Reconciliation Reported Amount of Income Tax Expense to the Amount Of Income Tax Expense Under Federal Statutory Tax Rates</link:definition>  
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        <link:definition>043 - Disclosure - Note 9 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Details)</link:definition>   
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        <link:definition>044 - Disclosure - Note 9 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Details) - Mandatorily Redeemable Noncontrolling Interest Liability</link:definition>  
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        <link:definition>045 - Disclosure - Note 9 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Details) - Changes in the Obligation for Noncontrolling Owners&#8217; Interests in Subsidiaries and Joint Ventures</link:definition>    
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  <xs:element name="Note1SummaryofBusinessandSignificantAccountingPoliciesDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_Note1SummaryofBusinessandSignificantAccountingPoliciesDetailsLineItems"/>    
  <xs:element name="OwnershipInterestInJointVenture" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_OwnershipInterestInJointVenture"/> 
  <xs:element name="OwenershipInterestInSubsidiary" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_OwenershipInterestInSubsidiary"/>    
  <xs:element name="VariableInterestEntityEntityMaximumLossExposurePercentage" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_VariableInterestEntityEntityMaximumLossExposurePercentage"/>   
  <xs:element name="ContractCompletionTerm" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_ContractCompletionTerm"/> 
  <xs:element name="EstimatedConstructionRevenuesBeforeTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="strl_EstimatedConstructionRevenuesBeforeTax"/> 
  <xs:element name="EstimatedConstructionRevenuePerDilutedShare" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_EstimatedConstructionRevenuePerDilutedShare"/> 
  <xs:element name="ContractReceivableDiscountedPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_ContractReceivableDiscountedPercentage"/>     
  <xs:element name="AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="strl_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainTax"/>  
  <xs:element name="Note3ConstructionJointVenturesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="strl_Note3ConstructionJointVenturesDetailsTable"/>   
  <xs:element name="Note3ConstructionJointVenturesDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_Note3ConstructionJointVenturesDetailsLineItems"/> 
  <xs:element name="ConstructionBacklogAttributableToProjectPerformedByJointVentures" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="strl_ConstructionBacklogAttributableToProjectPerformedByJointVentures"/> 
  <xs:element name="Note5DerivativeFinancialInstrumentsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="strl_Note5DerivativeFinancialInstrumentsDetailsTable"/>   
  <xs:element name="Note5DerivativeFinancialInstrumentsDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_Note5DerivativeFinancialInstrumentsDetailsLineItems"/> 
  <xs:element name="DerivativeNonmonetaryNotionalAmountGallons" type="num:volumeItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_DerivativeNonmonetaryNotionalAmountGallons"/>  
  <xs:element name="DerivativeNonmonetaryNumberOfGallonsRange" type="num:volumeItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_DerivativeNonmonetaryNumberOfGallonsRange"/>     
  <xs:element name="Note9AcquisitionsandSubsidiariesandJointVentureswithNoncontrollingOwnersInterestsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="strl_Note9AcquisitionsandSubsidiariesandJointVentureswithNoncontrollingOwnersInterestsDetailsTable"/>     
  <xs:element name="Note9AcquisitionsandSubsidiariesandJointVentureswithNoncontrollingOwnersInterestsDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_Note9AcquisitionsandSubsidiariesandJointVentureswithNoncontrollingOwnersInterestsDetailsLineItems"/>   
  <xs:element name="NumberOfAssumedConstructionContracts" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_NumberOfAssumedConstructionContracts"/>   
  <xs:element name="NonCompeteAgreementTerm" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_NonCompeteAgreementTerm"/>   
  <xs:element name="NoncontrollingInterestsOfferToBuyPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_NoncontrollingInterestsOfferToBuyPercentage"/>     
  <xs:element name="NoncontrollingInterestsOfferToSellPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_NoncontrollingInterestsOfferToSellPercentage"/>  
  <xs:element name="LiquidationValueMultiplier" type="xbrli:decimalItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_LiquidationValueMultiplier"/>   
  <xs:element name="RevaluationPreTaxBenefit" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="strl_RevaluationPreTaxBenefit"/>   
  <xs:element name="RevaluationBenefitNetOfTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="strl_RevaluationBenefitNetOfTax"/>  
  <xs:element name="RevaluationPreTaxCharge" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="strl_RevaluationPreTaxCharge"/>     
  <xs:element name="RevaluationChargeNetOfTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="strl_RevaluationChargeNetOfTax"/>    
  <xs:element name="ObligationToPurchaseMemberInterest" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="strl_ObligationToPurchaseMemberInterest"/>   
  <xs:element name="ObligationToPurchasePercentageMemberInterest" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_ObligationToPurchasePercentageMemberInterest"/>  
  <xs:element name="IncreaseDecreaseInUndistributedEarnings" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="strl_IncreaseDecreaseInUndistributedEarnings"/>   
  <xs:element name="MemberInterestSoldPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="strl_MemberInterestSoldPercentage"/>    
  <xs:element name="BusinessAcquisitionAdditionalPricePayments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="strl_BusinessAcquisitionAdditionalPricePayments"/>    
  <xs:element name="BusinessAcquisitionAdditionalPricePaymentsTerm" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_BusinessAcquisitionAdditionalPricePaymentsTerm"/>    
  <xs:element name="BusinessAcuisitionEarn-OutPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_BusinessAcuisitionEarn-OutPercentage"/> 
  <xs:element name="BusinessAcquisitionEarnOutCalculatedFloor" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="strl_BusinessAcquisitionEarnOutCalculatedFloor"/>  
  <xs:element name="BusinessAcquisitionUndiscountedEarnOutLiabilityDecrease" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="strl_BusinessAcquisitionUndiscountedEarnOutLiabilityDecrease"/>   
  <xs:element name="BusinessAcquisitionUndiscountedEarnOutLiability" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="strl_BusinessAcquisitionUndiscountedEarnOutLiability"/>     
  <xs:element name="BusinessAcquisitionEarnOutPayment" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="strl_BusinessAcquisitionEarnOutPayment"/>     
  <xs:element name="BusinessAcquisitionTotalAvailableEarnOutLiability" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="strl_BusinessAcquisitionTotalAvailableEarnOutLiability"/>    
  <xs:element name="EBITDAEarnOutDecreaseFloor" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="strl_EBITDAEarnOutDecreaseFloor"/>   
  <xs:element name="EBITDAEarnOutIncreaseFloor" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="strl_EBITDAEarnOutIncreaseFloor"/>   
  <xs:element name="ForcastedEBITDAPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="strl_ForcastedEBITDAPercentage"/>   
  <xs:element name="BusinessAcquisitionCostOfAcquiredEntityDiscountedPresentValueOfAdditionalPurchasePrice" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="strl_BusinessAcquisitionCostOfAcquiredEntityDiscountedPresentValueOfAdditionalPurchasePrice"/> 
  <xs:element name="RevaluationBenefit" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_RevaluationBenefit"/>   
  <xs:element name="BusinessAcquisitionUndiscountedEarnOutLiabilityIncrease" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="strl_BusinessAcquisitionUndiscountedEarnOutLiabilityIncrease"/> 
  <xs:element name="Note10StockholdersEquityDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="strl_Note10StockholdersEquityDetailsTable"/> 
  <xs:element name="Note10StockholdersEquityDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_Note10StockholdersEquityDetailsLineItems"/>    
  <xs:element name="MaximumAuthorizedProceedsFromIssuanceOrSaleOfEquity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="strl_MaximumAuthorizedProceedsFromIssuanceOrSaleOfEquity"/>     
  <xs:element name="Note11VariableInterestEntitiesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="strl_Note11VariableInterestEntitiesDetailsTable"/>   
  <xs:element name="Note11VariableInterestEntitiesDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_Note11VariableInterestEntitiesDetailsLineItems"/> 
  <xs:element name="Note13CovenantsComplianceDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="strl_Note13CovenantsComplianceDetailsTable"/>   
  <xs:element name="Note13CovenantsComplianceDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_Note13CovenantsComplianceDetailsLineItems"/> 
  <xs:element name="DebtInstrumentCovenantComplianceMinimumNewEquityCapitalRaised" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="strl_DebtInstrumentCovenantComplianceMinimumNewEquityCapitalRaised"/>  
  <xs:element name="DebtInstrumentCovenantComplianceMinimumOtherLiquidityRaised" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="strl_DebtInstrumentCovenantComplianceMinimumOtherLiquidityRaised"/>  
  <xs:element name="AmountsReclassifiedFromOCIMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_AmountsReclassifiedFromOCIMember"/>     
  <xs:element name="BeforeAmendmentMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_BeforeAmendmentMember"/>   
  <xs:element name="CEOOfRHBMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_CEOOfRHBMember"/>    
  <xs:element name="DistributionsToNoncolntrollingInterestOwnersNotIncludingPutCallPayoutMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_DistributionsToNoncolntrollingInterestOwnersNotIncludingPutCallPayoutMember"/> 
  <xs:element name="FifthAmendmentMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_FifthAmendmentMember"/> 
  <xs:element name="FourthAmendmentMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_FourthAmendmentMember"/>   
  <xs:element name="FourthAmendmentModificationIncreaseBorrowingRatesMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_FourthAmendmentModificationIncreaseBorrowingRatesMember"/> 
  <xs:element name="IncreaseInBasisPointsIn2014Member" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_IncreaseInBasisPointsIn2014Member"/>  
  <xs:element name="MyersAndSonsConstructionLPMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_MyersAndSonsConstructionLPMember"/>     
  <xs:element name="MyersMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_MyersMember"/>   
  <xs:element name="NonEmployeeMembersOfTheCompanysBoardOfDirectorsMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_NonEmployeeMembersOfTheCompanysBoardOfDirectorsMember"/>  
  <xs:element name="NoncontrollingOwnersMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_NoncontrollingOwnersMember"/>   
  <xs:element name="OtherOperatingIncomeNetMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_OtherOperatingIncomeNetMember"/>    
  <xs:element name="PreviousAmountMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_PreviousAmountMember"/> 
  <xs:element name="QuarterlyIncreaseInBasisPointsAfter2015Member" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_QuarterlyIncreaseInBasisPointsAfter2015Member"/> 
  <xs:element name="RHBIncMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_RHBIncMember"/>     
  <xs:element name="RHBMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_RHBMember"/>    
  <xs:element name="RemovedOptionToIncreaseMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_RemovedOptionToIncreaseMember"/>    
  <xs:element name="RemovedRequirementMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_RemovedRequirementMember"/>    
  <xs:element name="RestrictedStockAndStockOptionsMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_RestrictedStockAndStockOptionsMember"/>   
  <xs:element name="RevisedAmountMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_RevisedAmountMember"/>    
  <xs:element name="SWRIncMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_SWRIncMember"/>     
  <xs:element name="SevenMontsEnded2016Member" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_SevenMontsEnded2016Member"/> 
  <xs:element name="ShimmickConstructionCompanyMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_ShimmickConstructionCompanyMember"/>  
  <xs:element name="UponDeathMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_UponDeathMember"/> 
  <xs:element name="UponPermanentDisabilityMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_UponPermanentDisabilityMember"/>    
  <xs:element name="WaterRightsMember" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_WaterRightsMember"/>     
  <xs:element name="Years2011To2015Member" type="nonnum:domainItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_Years2011To2015Member"/>   
  <xs:element name="DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="strl_DocumentAndEntityInformationAbstract"/> 
</xs:schema>   


