“Design/Build” for Trenchless Rehabilitation Nicholas J ... · § Comprehensive Wastewater Management Plan (CWMP) ... § State Highway Access § Adjacent Buried Infrastructure

NEWEA– 2017AnnualConference&Exhibit

January24,2017

“Design/Build”forTrenchlessRehabilitationFindandFix:lessonsforsuccess

NicholasJ.Rystrom,P.E.JonathanE.Kunay,P.E.


Outline

§ CityofRevereStats§ ProjectBackground§ Find&FixApproach§ IdentificationofPotentialScenarios§ DevelopmentofSpecifications§ Conclusions

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CityofRevere,Massachusetts

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CityofRevere,MA

§ Population:55,000

§ LandArea:10mi2

§ 99MilesofSanitarySewers§ ClayPipe§ 100YearsOld

§ 12PumpingStations

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ConsentDecree(CD)CivilActionNo.1:10-cv-11460

§ Enteredintoin2010withMassDEP &USEPA

§ ViolationsofCleanWaterAct

§ ComplianceRequirements§ Eliminatesanitaryseweroverflows(SSOs)

§ CapacityAssessment§ SewerSystemEvaluationSurvey(SSES)§ ComprehensiveWastewaterManagementPlan(CWMP)§ ComprehensiveStormwater ManagementPlan(CSMP)§ IllicitDischargeDetection&EliminationPlan(IDDE)

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CapacityAssessment

§ FlowMeteringProgram

§ DelineateFlowMeterAreas

§ PrioritizeAreastoInvestigate

§ PerformSSES

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SewerSystemEvaluationSurvey(SSES)

§ AcceleratedTimeline

§ FlowIsolation

§ 4,000gpd/idm

§ CCTVInspections

§ ManholeInspections

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SewerSystemEvaluationSurvey(SSES)

§ WidespreadDefectsFound

§ SewerPipes

§ Manholes

§ DuetoMaterial&Age

§ 100YearOldClaySewers

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ComprehensiveWastewaterMasterPlan

§ BasedonMetering&SSESResults

§ LargePortionofSystemtobeRehabilitated

§ PrivateInflowRemoval

§ DrainageImprovements

§ MeetRequirementsofConsentDecree

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ComprehensiveRehabilitationProgram

§ EffectivelyAddressWidespreadDefects

§ Consistsof:

§ Cured-In-PlacePipe(CIPP)Lining

§ ServiceLateralConnectionLining

§ ManholeRehabilitation

§ PrivateInflowRemoval

§ 25,000– 30,000LFAreas

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ComprehensiveRehabilitationProgram

§ ProventoRemoveHighPercentagesofInfiltration/Inflow

§ 40%- 70%

§ SuccessfullyImplementedinVariousMunicipalitiesThroughouttheCountry

§ RecommendedandInitiatedintheCityofRevere,MA.

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TraditionalComprehensiveRehabilitationDesignApproach

§ PerformSewerSystemInvestigations

§ CCTVInspection

§ ManholeInspection

§ DevelopDesignDrawings&Specifications

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§ CCTVInspectionCosts

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PipeSize(inches)

CCTVInspection&PreparatoryCleaning

CCTVInspection&HeavyCleaning

8”-10” $1.25- $1.65/ft $2.00– $3.00/ft

12”-15” $1.50- $1.75/ft $3.00- $3.50/ft

24”– 36” $2.50- $3.00/ft $9.00- $10.00/ft



§ ManholeInspectionCosts

§ VaryBasedonType

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InspectionType Cost

SurfaceInspection $55- $75/each

VideoInspection $100- $125/each



§ DevelopDesignDrawings&Specifications

§ ReviewCCTVInspectionVideos

§ IdentifyLocations&ExtentsofSpotRepairs

§ DeterminePipeSize,Material,Depth,NumberofServiceConnections(open/capped),DropConnections

§ DefineSurfaceConditions

§ ReviewManholeInspections

§ DetermineRehabilitationRecommendations(Cementitious/EpoxyLining,Frame&CoverReplacement)

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§ DesignDrawings&Specifications

§ ExtentsofCIPPLining&SpotRepairs

§ ManholeRehabilitationActions

§ DetailHowSpotRepairsandTrenchlessRehabilitationArePerformed

§ ApprovedMaterials&InstallationMethods

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§ DesignDrawings&Specifications§ ContainPermitObligations

§ Wetlands

§ StateHighwayAccess

§ AdjacentBuriedInfrastructure

§ PermitRequirements

§ SpecialMaterials/Procedures(ControlDensityFill)

§ PavementThickness

§ TrafficManagement

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Find&FixMethod

§ “Design/Build”forTrenchlessRehabilitation

§ CanSaveMoneyandReduceProjectDuration

§ EliminatetheNeedtoPerformInspectionsPriortoDesign

§ SuccessDirectlyRelatedtoCompletenessofDesignSpecifications

§ CarryItemstoCoverallTypesofScenariosThatMayBeEncounteredDuringConstruction

§ ConstructionOversite(ResidentEngineering)isEquallyImportant

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DeterminationofPotentialScenarios

§ SpotReplacementofSewers§ FederalorStateOwnedRoadways

§ SpecialPavingRequirements

§ GenericPermits

§ GroundSurfaceFeatures

§ PrivateProperty

§ Easements

§ CurbingTypes

§ SubsurfaceConditions§ Cobbles,RailTies,Contaminated/UnsuitableSoils,Etc.

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NEWEA– 2017AnnualConference&Exhibit20



§ PreviouslyLinedPipe

§ MayRequireLateralLining

§ ServicesNotProperlyReinstated

§ CappedServicesReinstated

§ ProtrudingTapsNotGroundDown

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§ MultipleProtrudingTaps

§ PreventsAccessfromBothSides

§ TypicalRotaryCutterCannotBeUsed

§ LateralReinstatementDeviceIsNeeded

§ EquipmentNotUsuallyOwnedbyCCTVContractor

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§ LargeChangesinQuantities

§ SewersMightBeLinedorPVCPipe

§ LessLiningThanOriginallyThought

§ GISDatabaseCouldHaveInaccuratePipeSizes

§ BidItemsforSpecificSizesCouldbeLargerorSmaller

§ ReviewRecordDrawings

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§ UnknownServiceLateralConnections

§ Status:ActiveorCappedisUnknown

§ DyeTestingMayBeRequiredtoConfirm

§ IncorrectReinstatementCouldResultinBackupsorNeedforShortLiner

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§ SurchargedSewers

§ InitialCCTVInspectionCannotbePerformed

§ BypassPumpingMayBeRequiredtoPerformInspection/Rehabilitation

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§ ProjectDelays/ContractDuration

§ ManyUnknownsThatCouldCauseDelays

§ ExtraSpotRepairs

§ ChangesinLinerQuantitiesAffectCIPPOrdering

§ ProjectsCouldExtendIntoWinterMonths§ CertainRehabilitationProductsDoNotWorkinColdWeather

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§ UnknownInfrastructure

§ ConnectivityIssues

§ MissingorExtraSewerPipes

§ MissingorExtraManholes

§ ManholesCouldBeBuried

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§ AdditionalTrenchlessOptions

§ ConventionalDigandReplaceSpotRepairNotPossible

§ UtilityConflicts

§ DepthofRepair

§ OtherRehabilitationTechniquesMayBeNeeded

§ PipeBursting

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DevelopmentofSpecifications

§ DevelopmentofRobustandDetailedTechnicalSpecificationsisCriticaltoSuccess

§ UniqueBidItemsRequired

§ EnhancedLanguageinMeasurement&PaymentNeeded

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§ SpotReplacementofSewers

§ IncludeBidItemstoAccountforVariousPossibilities

§ PipeSize

§ Depth

§ LengthofRepair

§ SurfaceandSubsurfaceConditions

§ EstimateQuantitiesBasedonReviewofSystem

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SpotReplacementBidItemsItemNumber Description EstimatedQuantity Unit UnitPrice Total

14a

RemoveandReplace(8-inthru12-in)existingVCsewer(0'-8'deep)up

to8linearfeet11 Each $7,743.25 $85,175.75

14b

RemoveandReplace(8-inthru12-in)existingVCsewer(9'-12'deep)up

to8linearfeet8 Each $7,924.38 $63,395.04

14c

RemoveandReplace(8-inthru12-in)existingVCsewer(13'-16'deep)

upto8linearfeet4 Each $10,867.50 $43,470.00

14d

RemoveandReplace(8-inthru12-in)existingVCsewer(17-20'deep)

upto8linearfeet1 Each $12,075.00 $12,075.00

15a

RemoveandReplace(8-inthru12-in)existingVCsewer(0'-8'deep)beyond8linearfeetspecifiedin

Item14a20 LinearFoot $370.75 $7,415.00

15b

RemoveandReplace(8-inthru12-in)VCSewer(9'-12'deep)beyond8linearfeetspecifiedinItem14b

16 LinearFoot $370.75 $5,932.00

15c

RemoveandReplace(8-inthru12-in)existingVCsewer(13'-16'deep)beyond8linearfeetspecifiedin

Item14c8 LinearFoot $302.40 $2,419.20

15d

RemoveandReplace(8-inthru12-in)VCSewer(17'-20'deep)beyond8

linearfeetspecifiedinItem14d4 LinearFoot $302.40 $1,209.60

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§ IncludeDetailedLanguageinMeasurementandPayment

§ RestoringPrivateProperty

§ RemovingTrolleyTracks

§ RestoringSidewalksandCurbing

§ DisposingofUnsuitable/ContaminatedSoils

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RestoringPrivateProperty

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CobbledStreets

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Trolley/StreetcarTracks

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SidewalksandCurbing

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ContaminatedSoils

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§ DigginginStateOwnedRoadwaysorEasements

§ PermitRequirements

§ ReducedWorkingHours

§ DifficultAccess

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SpotReplacementBidItems

ItemNumber Description EstimatedQuantity Unit UnitPrice Total

21

RemoveandReplace(8-inthru12-in)existingVC

sewer(0'-8'deep),inStateHighway,upto8linear

feet

2 Each $8,223.25 $16,446.50

22

RemoveandReplace(8-inthru12-in)existingVC

sewer(0'-8'deep),inStateHighway,beyond8linearfeetspecifiedinItem21

10 LinearFoot $400.75 $4,007.50

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RemoveandReplace(8-inthru12-in)existingVCsewer(9'-12'deep),in

cross-countryareas,upto8linearfeet

1 Each $8,500.00 $8,500.00

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RemoveandReplace(8-inthru12-in)VCSewer(9'-12'deep),incross-countryareas,beyond8linearfeet

specifiedinItem23

5 LinearFoot $375.50 $1,877.50

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§ PreviouslyCIPPLinedSewers

§ IfServiceLateralLiningisPartofScope

§ IncludeBidItemsFor:

§ AdditionalServiceLateralReinstatement/Brushing

§ InstallationofShortLiners

§ GrindingDownProtrudingTaps

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§ MultipleProtrudingTaps

§ CannotBeCutWithRotaryCutter

§ ChangedCondition

§ IncludeBidItemForGrindingDownProtrudingTapwithLateralReinstatementEquipment

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8

Grind-downMultipleProtrudingTapsUsingLateralReinstatement

Equipment12 each $442.50 $5,310.00



§ DyeTesting

§ StatusofAllServiceConnectionsWillNotBeKnown

§ RiskinReinstatingorNotReinstatingServices

§ IncludeBidItemForDyeTestingofServices

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§ Dewatering/BypassPumping

§ SewersCouldBeSurcharged

§ MustbeCleanedandInspected

§ IncludeBidItemForDewatering/BypassPumping/HeavyCleaning

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Dewater/BypassPumpandPerformTelevisionInspectionofSewerPipe- 8"-24"

5,271 LinearFoot $3.00 $15,813.00



§ AdditionalTrenchlessAlternatives

§ SpotReplacementofSewersNotAlwaysPossible

§ UtilityConflicts

§ DepthofRepair

§ IncludeBidItemForPipeBursting

§ DetailedLanguagewithAssumptionsonPipeSize

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Conclusions

§ Find&FixMethodis“Design/Build”forTrenchlessRehabilitation§ CanSaveMoneyandTime§ AllowMunicipalitiestoRehabilitateLargePortionsoftheirSewerSystem§ DetailedSpecificationsareCrucialtoLimitChangeOrders

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Contactus!

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JonathanE.Kunay,[email protected]

Findmoreinsightsthroughourwaterpartnershipatcdmsmith.com/waterand@CDMSmith

NicholasJ.Rystrom,[email protected]

Documents

“Design/Build” for Trenchless Rehabilitation Nicholas J ... · § Comprehensive Wastewater Management Plan (CWMP) ... § State Highway Access § Adjacent Buried Infrastructure