levee inspection report

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For Official Use Only (FOUO): This document contains levee information that shall not be released in an uncontrolled manner Levee Segment / System - Alameda Zone 05, Line L - Dry Creek (DYCR) Levee Inspection Summary Page 1 of 7 US Army Corps of Engineers ® Levee Inspection Report Name of System: Alameda Zone 05, Line L - Dry Creek (DYCR) Name of Segment: Alameda Zone 05, Line L - Dry Creek (DYCR) NLD System ID: 5305001500 NLD Segment ID: 5304001500 Segment Type: Levee Sponsor (Name and Organization): Alameda County Flood Control and Conservation District Inspection Report Prepared by: Rachael Marzion Date(s) of Inspection: 09/21/2020 - 09/21/2020 Other Segments Within This System Segment Name NLD Segment ID# Segment Type Segment Inspection Rating Contents of Inspection Report: Levee Inspection Summary 01. General Items 02. Embankment 03. Floodwall 04. Pipes and Ancillary Items 05. Closures 06. Channels 07. Pump Stations Maps Data Tables (Pipes, Gates, Relief Wells, Toe Drains, Sub-drains, and/or Closures) Levee Inspection Checklist Reference Guide Purpose of Special Inspection: Type of Inspection: Routine Inspection Periodic Inspection Special Inspection Ratings: Segment Rating: Good Fair Poor No Verdict System Rating: Good Fair Poor No Verdict LSO Signature: Date Approved:

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Page 1: Levee Inspection Report

ForOfficialUseOnly(FOUO):Thisdocumentcontainsleveeinformationthatshallnotbereleasedinanuncontrolledmanner

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

LeveeInspectionSummaryPage1of7

USArmyCorpsofEngineers®

LeveeInspectionReportNameofSystem: AlamedaZone05,LineL-DryCreek(DYCR)NameofSegment: AlamedaZone05,LineL-DryCreek(DYCR)NLDSystemID: 5305001500 NLDSegmentID: 5304001500

SegmentType: LeveeSponsor(NameandOrganization): AlamedaCountyFloodControlandConservationDistrictInspectionReportPreparedby: RachaelMarzion Date(s)ofInspection: 09/21/2020-09/21/2020

OtherSegmentsWithinThisSystem

SegmentName NLDSegmentID# SegmentType SegmentInspectionRating

ContentsofInspectionReport:

LeveeInspectionSummary

01. GeneralItems

02. Embankment

03. Floodwall

04. PipesandAncillaryItems

05. Closures

06. Channels

07. PumpStations

Maps

DataTables(Pipes,Gates,ReliefWells,ToeDrains,Sub-drains,and/orClosures)

LeveeInspectionChecklistReferenceGuide

PurposeofSpecialInspection:

TypeofInspection: RoutineInspection PeriodicInspection SpecialInspection

Ratings:

SegmentRating: Good Fair Poor NoVerdict

SystemRating: Good Fair Poor NoVerdict

LSOSignature: DateApproved:

Page 2: Levee Inspection Report

ForOfficialUseOnly(FOUO):Thisdocumentcontainsleveeinformationthatshallnotbereleasedinanuncontrolledmanner

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

LeveeInspectionSummaryPage2of7

LeveeInspectionTeamMembers(LeveeSponsor,USACE,andOthers)

Name Organization Discipline PhoneNumber

JohnConway USACE-SanFranciscoDistrict Geosciences [email protected]

RachaelMarzion USACE-SanFranciscoDistrict HydrologyandHydraulics [email protected]

JinYang USACE-SanFranciscoDistrict CivilDesign

FyodorDelyaei USACE-SanFranciscoDistrict Geosciences

Page 3: Levee Inspection Report

ForOfficialUseOnly(FOUO):Thisdocumentcontainsleveeinformationthatshallnotbereleasedinanuncontrolledmanner

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

LeveeInspectionSummaryPage3of7

SummaryofItemRatings(P.1of3)PrimaryItemsareHighlightedinYellowSectionNo.

SectionName ItemNo.

Item ItemRating(2020)

ItemRating

ItemRating

1 GeneralItems

1-1 Accessibility(PrimaryItem) Fair1-2 Instrumentation Fair1-3 Operations&Maintenance(O&M)Manuals Good

2 Embankments

2-1 Seepage(PrimaryItem) N/A2-2 Stability(PrimaryItem)2-3 Erosion(PrimaryItem)2-4 Revetment/Armoring2-5 Vegetation2-6 SodCover2-7 Encroachments2-8 ApprovedAlterations2-9 LocalSettlement/Depressions2-10 Rutting2-11 Cracking2-12 AnimalBurrows2-13 ReliefWells2-14 ToeDrain/Sub-DrainageSystems2-15 Other

3 Floodwalls

3-1 Seepage(PrimaryItem) N/A3-2 Stability(PrimaryItem)3-3 Erosion(PrimaryItem)3-4 Revetment/Armoring3-5 Vegetation3-6 Encroachments3-7 ApprovedAlterations3-8 ConcreteSurfaces3-9 SteelSurfaces3-10 MonolithJoints/Interlocks3-11 ReliefWells3-12 ToeDrain/Sub-DrainageSystems3-13 Other

Page 4: Levee Inspection Report

ForOfficialUseOnly(FOUO):Thisdocumentcontainsleveeinformationthatshallnotbereleasedinanuncontrolledmanner

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

LeveeInspectionSummaryPage4of7

SummaryofItemRatings(P.2of3)PrimaryItemsareHighlightedinYellowSectionNo.

SectionName ItemNo.

Item ItemRating(2020)

ItemRating

ItemRating

4 PipesandAssociatedDrainageFeatures

4-1 PipeCondition(PrimaryItem) Poor4-2 PipeCondition(AwayfromLevee)4-3 Gate/ValveCondition(PrimaryItem) Good4-4 Gate/ValveOperationPlan&Experience(PrimaryItemy)4-5 GateCondition(AwayfromLevee)4-6 GateOperationPlan&Experience(AwayfromLevee)4-7 Seepage(PrimaryItem) N/A4-8 AssociatedStructures Fair4-9 AssociatedStructuresConnections4-10 TrashRacks4-11 OtherMetallicItems4-12 Inlet&OutletDitches,DesignatedPondingAreas4-13 Revetment/Armoring4-14 Other

5 Closures

5-1 Stability(PrimaryItem)5-2 Erosion(PrimaryItem)5-3 ClosureStructureCondition-StopLogs&Gates(PrimaryItem)5-4 ClosureStructureOperationPlan&Experience-StopLogs&Gates(PrimaryItem)5-5 ClosureStructureStorage-StopLogs&Gates(PrimaryItem)5-6 SandbagandEarthenClosures-Storage,OperationPlan&Experience(PrimaryItem)5-7 ConcreteSurfaces5-8 SteelSurfaces5-9 MonolithJoints/Interlocks5-10 Encroachments5-11 ApprovedAlterations5-12 Other

Page 5: Levee Inspection Report

ForOfficialUseOnly(FOUO):Thisdocumentcontainsleveeinformationthatshallnotbereleasedinanuncontrolledmanner

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

LeveeInspectionSummaryPage5of7

SummaryofItemRatings(P.3of3)PrimaryItemsareHighlightedinYellowSectionNo.

SectionName ItemNo.

Item ItemRating(2020)

ItemRating

ItemRating

6 Channels

6-1 BankStability Fair6-2 Erosion Fair6-3 Revetment/Armoring Poor6-4 Shoaling Fair6-5 Vegetation Fair6-6 Encroachments Poor6-7 ApprovedAlterations6-8 StructureStability Poor6-9 ConcreteSurfaces Fair6-10 SteelSurfaces6-11 PavingSlabandStructureMonolithJoints/Interlocks Fair6-12 Other Fair

7 PumpStations

7-1 PumpStationBuilding7-2 MechanicalOperatingTrashRakes7-3 FencingandGates7-4 FloodControlPumps7-5 FloodControlDrainagePumpDriverandAccessories7-6 Sumps/WetWell7-7 FuelSystemforPumpEngines7-8 AncillarySystems7-9 PowerSource7-10 ElectricalSystems7-11 MeggerTesting7-12 ElectricalorMechanicalEnclosures,Panels,ConduitandDucts7-13 Cranes7-14 OtherMetallicItems7-15 ReliefWells7-16 ToeDrain/Sub-DrainageSystems7-17 ApprovedAlterations7-18 Other

Page 6: Levee Inspection Report

ForOfficialUseOnly(FOUO):Thisdocumentcontainsleveeinformationthatshallnotbereleasedinanuncontrolledmanner

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

LeveeInspectionSummaryPage6of7

SegmentRatingRationale:[DescribethebasisoftheSegmentratingconsidering(1)thegeneralconditionofthesegment,(2)therationaleforItemratings,categorizedbyFeaturethatcontributedtotheSegmentrating,and(3)thenumberor severityofnotableobservations/deficiencies.Thesummarymayalsoincludeinformationrelatedtotheconditionofthelevee,nototherwisecapturedintheLeveeInspectionChecklist,ifapplicable.]

Theinspectedreachconsistsofachannellinedwithgabionsandriprapinmanylocations.Therearenolevees,slidegates,closurestructures,orpumpstationsontheinspectedreach.ThereareleveesalongDryCreek belowAlvaradoNilesRoad(i.e.downstreamoftheinspectedreach).Sincethepreviousinspection,homelessencampmentshaveincreasedonchannelbanks,contributingtomuchmorechanneldebristhanobserved inpreviousinspections.Majorinspectionissuesinclude1)culvert pipe inspections over 5 years are past due, 2)vehiclerutsonbothbanksbetweentherailroadandBARTcrossing;3)crackingbelowRailroadAvenueBridge;and4)missinggabionsorriprapalong channelbottom.InitialinspectionconductedonSeptember21,2020.Follow-upphotosofRailroadAvetakenonOctober12,2020.

SystemRatingRationale:[SynthesizeinformationfromtheSegmentratingrationalesforeachSegmentwithintheSystem.Forsingle-segmentsystems,seesegmentratingrationaleabove.]

Page 7: Levee Inspection Report

ForOfficialUseOnly(FOUO):Thisdocumentcontainsleveeinformationthatshallnotbereleasedinanuncontrolledmanner

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

LeveeInspectionSummaryPage7of7

NationalFloodInsuranceProgram(NFIP)-44CFR65.10ProvisionEvaluation

FINDING 44CFR65.10Criterion CFRSection

POSITIVE NEGATIVE Allclosuredevices,whethermanualorautomatic,areoperatedinaccordancewithanofficiallyadoptedoperationmanual.

65.10(c)

POSITIVE NEGATIVE Manualsdocumentafloodwarningsystemthatwillbeusedtotriggeremergencyoperationactivitiesanddemonstrationthatsufficientfloodwarningtimeexistsforthecompletedoperationofallclosurestructures.

65.10(c)(1)i

POSITIVE NEGATIVE Manualsidentifyspecificactionsandassignmentsofresponsibilitybyindividualnameortitle. 65.10(c)(1)ii

POSITIVE NEGATIVE Manualsidentifyprovisionsforperiodicoperationofclosurestructuresfortestingandtrainingpurposes,inaccordancewiththeadoptedoperationmanual.

65.10(c)(1)iii

POSITIVE NEGATIVE Officiallyadoptedmaintenanceplansdocumentstheformalprocedurethatensuresthatthestability,height,&overallintegrityoftheleveeanditsassociatedstructuresandsystemsaremaintained.

65.10(d)

POSITIVE NEGATIVE Maintenanceplansspecifythemaintenanceactivitiestobeperformed,thefrequencyoftheirperformance,andthepersonbynameortitleresponsiblefortheirperformance.

65.10(d)

Page 8: Levee Inspection Report

1. GeneralItems

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

GeneralItemsPage1of5

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

1-1 Accessibility(PrimaryItem)

Fair 1 2 0 Ingeneral,allfeatureswereaccessiblebyaccessroadsalongthechannel.However,homelessencampmentsandrelateddebrismadesomeareas

difficulttoaccess(neartherailroadandBARTcrossings).Sodcoveragewassparseinmanylocationsasdescribedinthechannelssection.

ObservationalRatingGuidelinesGood Eachfeatureoftheprojectisaccessibleforoperations,maintenance,inspections,floodfighting,AND

Sodisadequatelymaintainedandnon-compliantvegetationandencroachmentsarenotpresentalongentireleveetoallowaccessandinspection.

Fair Eachfeatureofprojectisaccessible;however,someobstructionsorvegetationobservedthatdoesnotallowforcompleteinspectionorcouldimpairfloodfightactivities,ORHighgrassandbrushobservedinsomelocationsbutdoesnotpreventaccessandinspection.

Poor Theleveeisnotaccessibleformonitoring,floodfightingorinspectionactivitiesduetoobstructions,excessivevegetationhighgrass,orotherissues.*TheratingforItem1-1"Accessibility"shouldnotbedetermineduntilaccesstoallportionsofthelevee,floodwallandothercriticalsegment/systemfeatureshasbeenattempted.TheItemRatingshouldalsotakeintoconsiderationotheritemobservations(e.g.Enchroachments,Vegetation,Sod,etc.)thatinhibitaccessibility.

ObservationDataTable-GeneralItems-Accessibility(PrimaryItem)

ObservationNumber 2020-0001

ObservationRating Fair

ObservationLocation

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta64+00

GPSLatitude/Longitude

Point LineStart End

37.6005

DescriptionofObservation:AccessroadupstreamofLewisRoadpedestrianbridge

PhotoCaption:Accessroadsweregenerallyingoodcondition.ErosionwasvisibleatbaseoffencepostsupstreamoftheLewisRoadpedestrianbridge.

PhotoNumber:1

Page 9: Levee Inspection Report

1. GeneralItems

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

GeneralItemsPage2of5

ObservationDataTable-GeneralItems-Accessibility(PrimaryItem)

ObservationNumber 2020-0002

ObservationRating Good

ObservationLocation

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta56+00

GPSLatitude/Longitude

Point LineStart End

37.5984

DescriptionofObservation:Accessroad,typicalcondition

PhotoCaption:Accessroad,typicalcondition.

PhotoNumber:1

ObservationDataTable-GeneralItems-Accessibility(PrimaryItem)

ObservationNumber 2020-0003

ObservationRating Fair

ObservationLocation

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

38+00

GPSLatitude/Longitude

Point LineStart End

37.5945

DescriptionofObservation:Accessroad,typicalcondition

PhotoCaption:Accessroad,typicalcondition.Sodmissingonupperslope.Fabricliningexposed.

PhotoNumber:1

Page 10: Levee Inspection Report

1. GeneralItems

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

GeneralItemsPage3of5

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

1-2 Instrumentation Fair 0 1 0 USGSgage11180500(DRYCAUNIONCITY)islocatedneartheupstreamendoftheinspectedchannel.Nootherinstrumentationobserved.

ObservationalRatingGuidelinesGood Instruments(piezometers,settlementbolts,etc.)areaccessible,AND

Instrumentationisingoodcondition,inworkingorderanddatacanbecollectedasoriginallyintended.

Fair Instrumentsareaccessible,ANDInstrumentationhasminordamagebutdatacanstillbecollectedasoriginallyintended.

Poor Instrumentsarenotaccessible,ORInstrumentationismissingordamagedinawaythatdatacannotbecollectedasoriginallyintended.

N/A Thereisnoinstrumentationontheleveesegment

ObservationDataTable-GeneralItems-Instrumentation

ObservationNumber 2020-0004

ObservationRating Fair

ObservationLocation

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta104+00

GPSLatitude/Longitude

Point LineStart End

37.6069

DescriptionofObservation:USGSgage11180500-DRYCATUNIONCITY

PhotoCaption:USGSgagestationconsistsofCMPhouseandwellonrightbankandconcreteweirinchannel.ConsidercommunicatingwithUSGStoconfirmratingcurveaccuracy.Recentfieldmeasurementshaveonlybeentakenatlowflows:https://nwis.waterdata.usgs.gov/ca/nwis/measurements/?site_no=11180500&agency_cd=USGS

PhotoNumber:1

Page 11: Levee Inspection Report

1. GeneralItems

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

GeneralItemsPage4of5

ObservationNumber 2020-0004

ObservationRating Fair

ObservationLocation

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta104+00

GPSLatitude/Longitude

Point LineStart End

37.6069

DescriptionofObservation:USGSgage11180500-DRYCATUNIONCITY

PhotoCaption:ConcreteweirstructureatUSGSgagestation.Chippingisvisibleonconcreteweirblocks.Debrisinstructureshouldberemoved.

PhotoNumber:2

Page 12: Levee Inspection Report

1. GeneralItems

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

GeneralItemsPage5of5

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

1-3 OperationsandMaintenance(O&M)

Manuals

Good 0 0 0 TheO&MManualforDryCreek(Zone5,LineL-DryCreekOperations&MaintenanceManualVolumes1and2)isdatedMay2017.Themanualcontainsadescriptionofkeyprojectfeatures,asbuiltdrawings,and

maintenanceactivities.TheLeveeOwnersManualforNon-FederalFloodControlWorksfrom2006isintheO&MManualappendices.TheO&MManualdescribestheAlamedaCountyFloodWarningSystem,patrollingduringsignificantrainstormsandhightides,andcontactsforreporting

distressoffloodcontrolfacilities.TheO&MManualstatesthatmorespecificinformationonchainofresponsibilityandemergencycommunicationsiskeptwiththeEOP(hardcopyformat)attheElmhurstStreetandTurnerCourtfacilities.Theseshouldbereviewedinpersonduringthenextinspection,alongwithanyadditionalsitespecificEOPdetails.Emergencysupply

materialsattheTurnerRoadfacilitieswereobservedduringthe2020LagunaCreekinspection.TheO&MManualsurveillanceprocedures(section4)needstobeupdatedwithanyobservationsofchangesinchannelgeometry

overtime,anyimpactsonchannelflowcapacity,andcrosssectionmonitoringlocationsifnecessary.

Forleveesystemswithmultiplesegments,isthereconsistentdirectionintheindividualsegmentO&Mmanualsinorderfortheleveetobeoperatedandmaintainedasasystem?YES NO

ObservationalRatingGuidelinesGood LeveesponsorhascurrentLeveeOwner'sManual(non-fedonly),O&MManual,andmanufacturer'soperatinginstructions,ifapplicable,readilyavailable,AND

Manualsincludeafloodwarningsystem,triggersforemergencyoperationactivities,andleadtimeforclosureactivities,ANDManualsidentifymaterials,equipment,andpersonnelresponsibleforoperationactivities,ANDManualsdocumenttheprocedureforregularinspection,operationofequipmentandclosures,andtraining/exercisesrelatedtoclosuresandotheroperationactivities,ANDManualsdocumenttheformalmaintenanceproceduresrequiredtokeeptheleveeanditsassociatedstructuresinworkingoperationalconditionthatensuresthestability,height,&overallintegrityoftheleveeanditsassociatedstructuresandsystemsaremaintained.

Fair LeveesponsorhasLeveeOwner'sManual(non-fedonly),O&MManual,andmanufacturer'soperatinginstructions,ifapplicable,readilyavailableforusebutdocumentsarenotuptodate,ORManualsareincompletewithrespecttotriggersandleadtimesforemergencyoperationactivitiesandclosureactivities,ORManualsareincompletewithrespecttoresourcesrequiredforoperationalactivitiesand/orclosures(e.g.materials,equipment,andpersonnel),ORManualsareincompletewithrespecttoproceduresforregularinspections,operationofequipmentandclosures,andtraining/exercises,ORManualsareincompletewithrespecttomaintenanceproceduresrequiredtokeeptheleveeanditsassociatedstructuresinworkingoperationalconditionthatensuresthestability,height,&overallintegrityoftheleveeanditsassociatedstructuresandsystemsaremaintained.

Poor LeveesponsordoesnothaveO&MManualsoroperatinginstructions,ORThereisnodocumentedtriggersforemergencyoperationactivitiesand/orclosures,ORManualsdonotidentifyresourcerequirementsforoperationalactivitiesand/orclosures,ORTherearenomaintenanceproceduresidentifiedtokeeptheleveeanditsassociatedstructuresinworkingoperationalconditionthatensuresthestability,height,&overallintegrityoftheleveeanditsassociatedstructuresandsystemsaremaintained.

Page 13: Levee Inspection Report

4. PipesandAssociatedDrainageFeatures

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

PipesandAssociatedDrainageFeaturesPage1of7

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

4-1 PipeCondition(PrimaryItem)*

Poor 0 0 4 Theinteriorconditionsofpipesareunknownasvideoinspectionshavenotbeencompletedwithinthepast5years(poorrating).Sponsorisinthe

processofacquiringvideoinspectionequipmentandcompletingtrainingtoconductvideoinspections.

*PrimaryItem:Pipeswithintheleveefootprintorwithinthevicinityoftheleveesuchthatdeteriorationofthepipeconditioncouldimpacttheintegrityofthelevee.ReferenceEM1110-2-2902fordetailoninspectionofpipesandevaluationofthepipecondition.* GuidelinesforestablishinginspectionschedulesarecontainedintheinspectionECB.

ObservationalRatingGuidelinesGood Pipehasbeeninspectedwithintheestablishedinspectionschedule,AND

Nopipedamageordeterioration,ANDDeflectionsaresmallandnotapparentwithoutmeasurement,ANDStructuralconditionofthejointisgoodwithnoapparentdeformation,misalignment,tearingorcrackingofcomponentsorleakage.Jointsaresoiltight,ANDThereisnoindicationofsurfacedepressions,sinkholes,settlement,orcracksthatwouldindicatepipedamage.

Fair Pipehasbeeninspectedwithintheestablishedinspectionschedule,ANDDamageordeteriorationispresent,butisnotexpectedtoimpacttheintegrityofthepipeorlevee,ORDeflectionsareapparentbutdonothaveasignificanteffectontheshapeandintegrityofthepipe,ORJointshaveminordeformationwithnoapparentstructuraldamagetothejointandonlyminorleakage.Jointissoiltightwithminormisalignment,ORThereisnoindicationofsurfacedepressions,sinkholes,settlement,orcracksthatwouldindicatepipedamage.

Poor Pipehasnotbeeninspectedwithintheestablishedinspectionschedule,ORDamage,deteriorationorholesinthepipeisexpectedtoimpacttheintegrityofthepipeorlevee,ORDeflectionsareapparentandhaveasignificanteffectontheshapeandintegrityofthepipe,ORJointshavedeformationsthataffectthejointandsealalignmentorperformanceorhavesignificantleakage.Jointsarenotsoiltightwithsignificantmisalignment,ORSinkholesorsignificantsurfacedepressions,settlementorcracksarepresentonthesurfaceabovethepipe.

ObservationDataTable-PipesandAssociatedDrainageFeatures-PipeCondition(PrimaryItem)

ObservationNumber 2020-0005

ObservationRating Poor

ObservationLocation TopHalf

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

57+00

GPSLatitude/Longitude

Point LineStart End

37.5986

DescriptionofObservation:Culvertcondition(leftbank);morethan5yearswithoutvideoinspections

PhotoCaption:Minorcrackingandvegetationgrowthontopedgeofculvert.Removevegetationtoavoiddamage.Viewfromrightbank.

PhotoNumber:1

Page 14: Levee Inspection Report

4. PipesandAssociatedDrainageFeatures

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

PipesandAssociatedDrainageFeaturesPage2of7

ObservationNumber 2020-0005

ObservationRating Poor

ObservationLocation TopHalf

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

57+00

GPSLatitude/Longitude

Point LineStart End

37.5986

DescriptionofObservation:Culvertcondition(leftbank);morethan5yearswithoutvideoinspections

PhotoCaption:Culvertappearsunobstructed.Viewfromrightbank.

PhotoNumber:2

ObservationDataTable-PipesandAssociatedDrainageFeatures-PipeCondition(PrimaryItem)

ObservationNumber 2020-0006

ObservationRating Poor

ObservationLocation EntirePipe

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

39+00

GPSLatitude/Longitude

Point LineStart End

37.5947

DescriptionofObservation:Culvertcondition(leftbank);morethan5yearswithoutvideoinspections

PhotoCaption:MinordebrisandsedimentinsideculverttotherightofculvertwasremovablebyNFSduringinspection.

PhotoNumber:1

Page 15: Levee Inspection Report

4. PipesandAssociatedDrainageFeatures

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

PipesandAssociatedDrainageFeaturesPage3of7

ObservationDataTable-PipesandAssociatedDrainageFeatures-PipeCondition(PrimaryItem)

ObservationNumber 2020-0007

ObservationRating Poor

ObservationLocation EntirePipe

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

23+00

GPSLatitude/Longitude

Point LineStart End

37.5911

DescriptionofObservation:Culvertcondition(rightbank);morethan5yearswithoutvideoinspections

PhotoCaption:Crackededgesandsmallexposedrebaronculvert.

PhotoNumber:1

ObservationNumber 2020-0007

ObservationRating Poor

ObservationLocation EntirePipe

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

23+00

GPSLatitude/Longitude

Point LineStart End

37.5911

DescriptionofObservation:Culvertcondition(rightbank);morethan5yearswithoutvideoinspections

PhotoCaption:Erosionandrodentactivityupstreamofculvert.

PhotoNumber:1

Page 16: Levee Inspection Report

4. PipesandAssociatedDrainageFeatures

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

PipesandAssociatedDrainageFeaturesPage4of7

ObservationDataTable-PipesandAssociatedDrainageFeatures-PipeCondition(PrimaryItem)

ObservationNumber 2020-0008

ObservationRating Poor

ObservationLocation EntirePipe

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

22+50

GPSLatitude/Longitude

Point LineStart End

37.5911

DescriptionofObservation:CrackingaroundculvertslocatedintransitionstructureunderneathAlvaradoNilesBlvd;morethan5yearswithoutvideoinspections

PhotoCaption:Multiplecracksandchippingontheedgesandbelowtheroughly50inchovalconcreteculvert.Itisrecommendedthatthecracksbesealed.Crackinghasworsenedsinceprevious(2009)inspection.Imageofleftbankculvert.

PhotoNumber:1

ObservationNumber 2020-0008

ObservationRating Poor

ObservationLocation EntirePipe

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

22+50

GPSLatitude/Longitude

Point LineStart End

37.5911

DescriptionofObservation:CrackingaroundculvertslocatedintransitionstructureunderneathAlvaradoNilesBlvd;morethan5yearswithoutvideoinspections

PhotoCaption:Multiplecracksandchippingontheedgesandbelowtheroughly50inchovalconcreteculvert.Itisrecommendedthatthecracksbesealed.Imageofrightbankculvert.

PhotoNumber:1

Page 17: Levee Inspection Report

4. PipesandAssociatedDrainageFeatures

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

PipesandAssociatedDrainageFeaturesPage5of7

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

4-3 GateCondition(PrimaryItem)*(Sluicegates,slidegates,flapgates,flapvalves,pinchvalves,butterflyvalves,etc.)

Good 1 0 0 Oneflapgateingoodcondition.

*PrimaryItem:Allgatesthatfunctiontoexcludewaterfromtheleveedarea.

ObservationalRatingGuidelinesGood Gates/valvesformasealthatwillresultinlittletonoleakage,AND

Essentialmanual,mechanical,andelectricalcomponents(hoists,stemslifters/guides,hinges,etc.)functionwithnoresistance,ANDSupportequipment(specializeddrills,cranes,operatingmachinery,etc.)functionwithnoresistance,ANDNoornegligibleissues(cracks,corrosion,sediment,debris,looseboltsorotherobstructions)arepresentthatwillpreventtheproperoperationofgatesduringfuturefloodevents.

Fair Gates/valveshaveminorissueswiththesealthatwillresultinamanageablequantityofleakage,OREssentialmanual,mechanical,andelectricalcomponents(hoists,stemslifters/guides,hinges,etc.)arefunctionalbutnotadequatelymaintained,ordamagecausingthegatetoopenandclosewithsomeresistanceorbinding,ORSupportequipment(specializeddrills,cranes,operatingmachinery,etc.)arefunctionalbutrequiresomemaintenance,ORIssues(cracks,corrosion,sediment,debris,looseboltsorotherobstructions)arepresentbutareminorinnatureandwillnotpreventtheproperoperationofgatesduringfuturefloodevents.

Poor Gates/valvesaremissingordonotfunctionsothatsignificantleakagewilloccur,OREssentialmanual,mechanical,andelectricalcomponents(hoists,stemslifters/guides,hinges,etc.)thatarerequiredforproperoperationaredamagedtothepointthattheyarenolongerfunctional,ORSupportequipment(specializeddrills,cranes,operatingmachinery,etc.)arenotfunctionalandwillpreventpropergate/valveclosure,ORIssues(cracks,corrosion,sediment,debris,loose/missingboltsorotherobstructions)arepresentandaresevereenoughtopreventpropergateclosureormayresultinfailureduringfuturefloodevents.

N/A TherearenoGates/Valvesorotherclosures.

ObservationDataTable-PipesandAssociatedDrainageFeatures-Gate/ValveCondition(PrimaryItem)

ObservationNumber 2020-0009

ObservationRating Good

ObservationLocation OutletStructure

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

64+50

GPSLatitude/Longitude

Point LineStart End

37.6006

DescriptionofObservation:Flapgateingoodcondition(rightbank)

PhotoCaption:Clearminordebrisandvegetationfromoutfallstructure.

PhotoNumber:1

Page 18: Levee Inspection Report

4. PipesandAssociatedDrainageFeatures

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

PipesandAssociatedDrainageFeaturesPage6of7

ObservationNumber 2020-0009

ObservationRating Good

ObservationLocation OutletStructure

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

64+50

GPSLatitude/Longitude

Point LineStart End

37.6006

DescriptionofObservation:Flapgateingoodcondition(rightbank)

PhotoCaption:Flapgateappearstobeingoodcondition,butcouldnotbereachedtotestopening.Viewfromtopofoutfallstructure.

PhotoNumber:2

Page 19: Levee Inspection Report

4. PipesandAssociatedDrainageFeatures

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

PipesandAssociatedDrainageFeaturesPage7of7

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

4-8 AssociatedStructures*

(Inletandoutletstructuresandgate-wells,retainingwalls,

andheadwalls)

Fair 0 0 1 Protectivestructureaboveoutfallstructurehasbeendamaged.Thesafetyfencewasremoved.Ripraponbankaboveoutfallhasbeendisplacedand

partiallyremoved.

*Conditionsthatimpactembankmentsorfloodwallsshouldalsoberatedundertheappropriateembankmentsorfloodwallssectionstoreflecttheimpactonembankmentorfloodwallintegrity.

ObservationalRatingGuidelinesGood Associatedstructuresconnectedtopipesorgateshavenoornegligibletilting,sliding,settlementorerosionandarefullyfunctional,AND

Concreteisingoodconditionwithnoexposedreinforcingsteel,ANDJointsealant,fillerand/orwaterstopsareingoodcondition,ANDEachsheetpileisinterlockedfromtoptobottomandshownosignsofinterlockdistress.

Fair Associatedstructuresexhibittilting,sliding,settlementorerosionbutareminorinnatureandwillnotpreventtheproperfunctionofthestructureandassociatedgatesorpipes,ORMinorscaling,spalling,orcrackingexistswithlimitedareasofexposedreinforcingsteel,ORThejointmaterialhasappreciabledeteriorationtothepointwherejointfillermaterialhasbeenlostand/orwaterstopisvisibleinsomelocations,ORSheetpileinterlocksshowminimalsignsofdeformationormovementrelativetoeachotherandarenotdisengaged.

Poor Associatedstructuresexhibittilting,sliding,settlementorerosionaredamagedinsuchawaythatitjeopardizestheproperfunctionofthestructureandassociatedgatesorpipes,ORSubstantialscaling,spalling,orcrackingexists.Scalinghasexposedaggregate,lossofmortar,deteriorationexposedthesheetpiling/steelreinforcementand/orcausedcorrosionofreinforcingsteel,ORJointsealant,fillerand/orwaterstops/gaskets,rubberseals,etc.isseverelydeteriorated,ormissing,ORSheetpileinterlockshaveexcessivedeformationoraredisengaged.

N/A Therearenostructuresassociatedwithpipes.

ObservationDataTable-PipesandAssociatedDrainageFeatures-AssociatedStructures

ObservationNumber 2020-0010

ObservationRating Poor

ObservationLocation Other

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta64+50

GPSLatitude/Longitude

Point LineStart End

37.6005

DescriptionofObservation:Damagetoprotectivestructureaboveoutfall

PhotoCaption:Protectivestructureaboverightbankoutfallhasbeendamaged.Fenceismissing.Ripraponthebankaboveoutfallstructurehasbeenremoved/displaced.

PhotoNumber:1

Page 20: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage1of35

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

6-1 BankStability Fair 0 1 0 Nomajorbankinstabilityobserved.GabionsalongmuchofthechannelarecoveredinvegetationandshouldbeinspectedroutinelyfordamagebyNFS.

ObservationalRatingGuidelinesGood Channelbankinstabilityisnotobserved.Noactiveslide,slump,sloughing,cracking,scarp,localsettlement/depressions,bulgeorotherformsofdistresswithintheas-builtorrepairedchannelcrosssection

exists.

Fair Slide,slump,sloughing,cracking,scarp,localsettlement/depressions,bulge,orotherformsofdistressobservedwithinthechannelcrosssectionandisnotexpectedtonegativelyimpactchannelintegrityorflowcapacityexists.

Poor Slide,slump,sloughing,cracking,scarp,localsettlement/depressions,bulge,orotherformsofdistressobservedwithinthechannelcrosssectionandisexpectedtonegativelyimpactchannelintegrityorflowcapacityexists.

ObservationDataTable-Channels-BankStability

ObservationNumber 2020-0011

ObservationRating Fair

ObservationLocation LeftBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta45+00

GPSLatitude/Longitude

Point LineStart End

37.5956

DescriptionofObservation:Changeinleftbankslopegeometry

PhotoCaption:Changeingeometryonleftbank,possiblyatgabionstructure(gabionsarecoveredbyvegetation).Monitorconditionofgabionsandslopesandrepairifnecessary.

PhotoNumber:1

Page 21: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage2of35

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

6-2 Erosion Fair 0 6 0 DeepvehiclerutsalongbothbanksbetweenrailroadandBARTcrossings.Erosionalongtopofbanksnexttoaccessroadinsomelocations.Channelbottomappearsincised1-2ftdeepalongcenterlineinsomelocations.

ObservationalRatingGuidelinesGood Channelbankerosion(e.g.,rills,gullies,sheeterosion,splasherosion)duetonatural,human,oranimalinducedactivitiesisnotobservedorisminor,AND

Meanderoflowflowchannelsarewithinthechannelbanksanddonotimpactbankstability,ANDNochannelbankerosion(e.g.scouring,headcutting,undercutting,bankcaving,orhorizontaldeviationobserved,ANDThereisnooronlyminorapparentchangeinbedslope.

Fair Channelbankorbederosionexistsbutisnotexpectedtonegativelyimpactadjacentproperty,structures,cutoffwalls,flowcapacity,oradjacentleveeintegrity.

Poor Channelbankorbederosionisexpectedtonegativelyimpactadjacentproperty,structures,cutoffwalls,flowcapacityoradjacentleveeintegrity.

ObservationDataTable-Channels-Erosion

ObservationNumber 2020-0012

ObservationRating Fair

ObservationLocation TopofRightBank

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

100+00

GPSLatitude/Longitude

Point LineStart End

37.6069

DescriptionofObservation:Erosion

PhotoCaption:Erosionalongtopofrightbankslopewheresodcoverageismissing.Erosionextends1-2ftdeepintothebank.

PhotoNumber:1

Page 22: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage3of35

ObservationDataTable-Channels-Erosion

ObservationNumber 2020-0013

ObservationRating Fair

ObservationLocation TopofRightBank

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

102+00

GPSLatitude/Longitude

Point LineStart End

37.6068

DescriptionofObservation:Shallowdepressions

PhotoCaption:Multipledepressions(5-6ftwideand6inchesdeep)alongrightbankjustbelowaccessroad.Depressionsarelocatedonupperportionofslopewheresodcoverageismissing.

PhotoNumber:1

ObservationDataTable-Channels-Erosion

ObservationNumber 2020-0014

ObservationRating Fair

ObservationLocation Other

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta68+00toSta70+00

GPSLatitude/Longitude

Point LineStart End

37.6015

DescriptionofObservation:VehiclerutsanderosiononbothbanksbetweenrailroadandBARTcrossings

PhotoCaption:Erosiononleftbankjustupstreamofvehicleruts.

PhotoNumber:1

Page 23: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage4of35

ObservationNumber 2020-0014

ObservationRating Fair

ObservationLocation Other

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta68+00toSta70+00

GPSLatitude/Longitude

Point LineStart End

37.6015

DescriptionofObservation:VehiclerutsanderosiononbothbanksbetweenrailroadandBARTcrossings

PhotoCaption:Concretedebrisalongerodedleftbankjustupstreamofvehicleruts.

PhotoNumber:1

ObservationNumber 2020-0014

ObservationRating Fair

ObservationLocation Other

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta68+00toSta70+00

GPSLatitude/Longitude

Point LineStart End

37.6015

DescriptionofObservation:VehiclerutsanderosiononbothbanksbetweenrailroadandBARTcrossings

PhotoCaption:ErosionanddeepvehiclerutsonleftandrightbanksbetweenrailroadandBARTcrossings.

PhotoNumber:1

Page 24: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage5of35

ObservationDataTable-Channels-Erosion

ObservationNumber 2020-0015

ObservationRating Poor

ObservationLocation Other

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta68+00

GPSLatitude/Longitude

Point LineStart End

37.6012

DescriptionofObservation:Vehiclerutsonbothbanks

PhotoCaption:Erosionanddeepvehicleruts(>6inches)onleftbankjustupstreamoftherailroadtransitionstructure.

PhotoNumber:1

ObservationNumber 2020-0015

ObservationRating Poor

ObservationLocation Other

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta68+00

GPSLatitude/Longitude

Point LineStart End

37.6012

DescriptionofObservation:Vehiclerutsonbothbanks

PhotoCaption:Erosionanddeepvehiclerutsonrightbankjustupstreamoftherailroadtransitionstructure.Sedimentanddebrisonconcreteapron.

PhotoNumber:2

Page 25: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage6of35

ObservationDataTable-Channels-Erosion

ObservationNumber 2020-0016

ObservationRating Poor

ObservationLocation ChannelBottom

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

24+00

GPSLatitude/Longitude

Point LineStart End

37.5910

DescriptionofObservation:Channelerosionorriprapdisplacementalongcenterline

PhotoCaption:Channeliseithermissingripraporincised1-2ftdeepalongcenterlineupstreamofAlvaradoNilesRoad.

PhotoNumber:1

ObservationDataTable-Channels-Erosion

ObservationNumber 2020-0017

ObservationRating Fair

ObservationLocation ChannelBottom

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta76+50

GPSLatitude/Longitude

Point LineStart End

37.6035

DescriptionofObservation:Channelerosionorriprapdisplacementalongcenterline

PhotoCaption:Channeliseithermissingripraporincised2ftdeepalongcenterlinejustdownstreamofRRcrossingtransitionstructure.

PhotoNumber:1

Page 26: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage7of35

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

6-3 Revetment/Armoring(Riprap,StoneBlocks,

GroutedStone,Gabions,ArticulatingMat,PavingSlab,Geosynthetic,Soil

Cement,etc.)

Poor 0 0 3 Mostoftheinspectedchannelbottomislinedwithriprap.Insomelocations,ripraphasbeendisplacedandchannelliningisexposed,especiallybetween

WhippleRoadandMissionBlvd.

ObservationalRatingGuidelinesGood Existingrevetment/armoringisproperlymaintained,clearlyvisible(i.e.minimalsedimentorvegetation),andundamaged.

Fair Minorrevetment/armoringdisplacement,degradation,cracking,settlementorgeosynthetictearing,exposure,erosionaroundorunder,orUVdegradationexists,ORSmallareasofbeddingstoneareexposed,ORMinorvegetationexists.

Poor Substantialrevetment/armoringdisplacement,degradation,cracking,settlementorgeosynthetictearing,exposure,erosionaroundorunder,orUVdegradationexists,ORLargeareasofbeddingstoneareexposed,ORSubstantialvegetationexists.

N/A Thereisnorevetmentrequiredforerosionprotection.

ObservationDataTable-Channels-Revetment/Armoring

ObservationNumber 2020-0018

ObservationRating Poor

ObservationLocation ChannelBottom

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta90+00

GPSLatitude/Longitude

Point LineStart End

37.6064

DescriptionofObservation:Displacedriprapandexposedchannellining

PhotoCaption:ChannelliningbeneathriprapisexposedinseverallocationsbetweenWhippleRoadandMissionBlvd.ViewdownstreamtowardWhippleRoadtransitionstructure.

PhotoNumber:1

Page 27: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage8of35

ObservationNumber 2020-0018

ObservationRating Poor

ObservationLocation ChannelBottom

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta90+00

GPSLatitude/Longitude

Point LineStart End

37.6064

DescriptionofObservation:Displacedriprapandexposedchannellining

PhotoCaption:Exposedchannelliningbeneathriprap.

PhotoNumber:2

ObservationDataTable-Channels-Revetment/Armoring

ObservationNumber 2020-0019

ObservationRating Poor

ObservationLocation ChannelBottom

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta97+00

GPSLatitude/Longitude

Point LineStart End

37.6067

DescriptionofObservation:Displacedriprapandexposedchannellining

PhotoCaption:Erosionis1-2ftdeepincenterofchannel.Ripraphasbeendisplacedandfabricisexposed.

PhotoNumber:1

Page 28: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage9of35

ObservationDataTable-Channels-Revetment/Armoring

ObservationNumber 2020-0020

ObservationRating Poor

ObservationLocation ChannelBottom

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

78+00

GPSLatitude/Longitude

Point LineStart End

37.6041

DescriptionofObservation:Riprapdisplacementatedgeoftransitionstructure

PhotoCaption:Channelripraphasbeendisplaced,exposingconcreteedgeoftransitionstructurealongchannelcenterlineupstreamoftheRRcrossing.

PhotoNumber:1

Page 29: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage10of35

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

6-4 Shoaling(SedimentDeposition)

Fair 3 1 0 Mosttransitionstructuresareclearofsediment.Thinlayerofsedimentwithvegetationgrowthonchannelbottomattransitionstructurebelowrailroad

crossing.

ObservationalRatingGuidelinesGood Shoalingisnotpresentornon-vegetatedshoalingispresentthatisnotexpectedtonegativelyimpactchannelintegrityorflowcapacity,AND

Thereislittleornochangeinbedslopenotexpectedtonegativelyimpactflowcapacity.

Fair Vegetatedornon-vegetatedshoalingisobservedbutnotexpectedtonegativelyimpactchannelintegrityorflowcapacity,ANDNon-aquaticgrassesarepresent,butnowoodyvegetationispresentontheshoal,ORShoalingisinhibitinginspectionormaintenanceatrevetmentsegments,ORThereisflatteningofthebedslopethatisnotexpectedtonegativelyimpactchannelintegrityorflowcapacity.

Poor Vegetatedshoalingiswellestablishedandisnegativelyimpactingorisexpectedtonegativelyimpactchannelintegrityand/orflowcapacity,ANDNon-aquaticgrassesorwoodyvegetationarepresentontheshoal,ORShoalsdivertflowtowardssusceptibleornon-revettedchannelbanks,resultinginerosionorincreasederosionrisk.Revetmentcannotbeinspectedormaintainedbeneaththeshoaling,ORThebedslopeisflattened,negativelyimpactingchannelintegrityorflowcapacity.

ObservationDataTable-Channels-Shoaling

ObservationNumber 2020-0021

ObservationRating Good

ObservationLocation ChannelBottom

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

105+00

GPSLatitude/Longitude

Point LineStart End

37.6068

DescriptionofObservation:MinimalsedimentdepositionatMissionBlvdtransitionstructure

PhotoCaption:MinimalsedimentdepositiononchannelbottomunderMissionBlvdtransitionstructure.ViewupstreamtowardMissionBlvd.

PhotoNumber:1

Page 30: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage11of35

ObservationDataTable-Channels-Shoaling

ObservationNumber 2020-0022

ObservationRating Good

ObservationLocation ChannelBottom

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta23+00

GPSLatitude/Longitude

Point LineStart End

37.5909

DescriptionofObservation:MinimalsedimentdepositionatAlvaradoNilesRoadtransitionstructure

PhotoCaption:ChannelbottomoftransitionstructureatAlvaradoNilesRoadisfreeofsediment.Minordebrisatrighttoeshouldberemoved.

PhotoNumber:1

ObservationDataTable-Channels-Shoaling

ObservationNumber 2020-0023

ObservationRating Fair

ObservationLocation ChannelBottom

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta68+00

GPSLatitude/Longitude

Point LineStart End

37.6012

DescriptionofObservation:Layerofsedimentwithvegetationgrowthunderrailroadtransitionstructure

PhotoCaption:MinorshoalingandvegetationgrowthunderrailroadcrossingatSta68+00.

PhotoNumber:1

Page 31: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage12of35

ObservationDataTable-Channels-Shoaling

ObservationNumber 2020-0024

ObservationRating Good

ObservationLocation ChannelBottom

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta76+00

GPSLatitude/Longitude

Point LineStart End

37.6036

DescriptionofObservation:MinimaldepositionatRailroadAvenuetransitionstructures

PhotoCaption:ViewfromRailroadAvenueupstreamtowardRRcrossing.Minimalsedimentdepositiononbottomoftransitionstructure.Minordebrisdownstreamofpiershouldberemoved.

PhotoNumber:1

Page 32: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage13of35

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

6-5 Vegetation Fair 0 6 0 Channelsarefreeofmajorvegetation.Theinspectedreachhasnolevees.Numerouslargediametertreesaregrowingonbanksandadjacenttothe

accessroad.Treesshouldbemonitoredfordebrispotentialandanyimpactstochannelbanksoraccessroad.

ObservationalRatingGuidelinesGood Vegetation(trees,brush,grasses,etc.)doesnotimpairchannelintegrityorflowcapacity.

Fair Vegetationdoesnotsubstantiallyimpairchannelintegrityorflowcapacity.

Poor Vegetationsubstantiallyimpairschannelintegrityorflowcapacity.

ObservationDataTable-Channels-Vegetation

ObservationNumber 2020-0025

ObservationRating Fair

ObservationLocation TopofLeftBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

100+00

GPSLatitude/Longitude

Point LineStart End

37.6069

DescriptionofObservation:FencingandlargediametertreesfromWhippleRoadtoMissionBlvd

PhotoCaption:TreesandfencinglinetheleftbankbetweenWhippleRoadandMissionBlvd.Multipletreesleaningtowardchannel.

PhotoNumber:1

Page 33: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage14of35

ObservationDataTable-Channels-Vegetation

ObservationNumber 2020-0026

ObservationRating Fair

ObservationLocation LeftBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta64+00

GPSLatitude/Longitude

Point LineStart End

37.6005

DescriptionofObservation:Largediametertrees

PhotoCaption:Largediametertreeonleftbank.ViewupstreamfrompedestrianbridgeatLewisAve.

PhotoNumber:1

ObservationNumber 2020-0026

ObservationRating Fair

ObservationLocation LeftBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta64+00

GPSLatitude/Longitude

Point LineStart End

37.6005

DescriptionofObservation:Largediametertrees

PhotoCaption:Largediametertreesonleftbankandalongrightbankaccessroad.Viewdownstreamfrompedestrianbridge.

PhotoNumber:1

Page 34: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage15of35

ObservationDataTable-Channels-Vegetation

ObservationNumber 2020-0027

ObservationRating Fair

ObservationLocation LeftBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta59+50

GPSLatitude/Longitude

Point LineStart End

37.5993

DescriptionofObservation:Largediametertrees

PhotoCaption:Largediametertreeandtreestumponleftbank.

PhotoNumber:2

ObservationNumber 2020-0027

ObservationRating Fair

ObservationLocation LeftBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta59+50

GPSLatitude/Longitude

Point LineStart End

37.5993

DescriptionofObservation:Largediametertrees

PhotoCaption:Largediametertreesonleftbank,includingaleaningtreeonthechannelslope.

PhotoNumber:3

Page 35: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage16of35

ObservationDataTable-Channels-Vegetation

ObservationNumber 2020-0028

ObservationRating Fair

ObservationLocation Other

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta58+00

GPSLatitude/Longitude

Point LineStart End

37.5990

DescriptionofObservation:Largediametertrees

PhotoCaption:Largediametertreeonleftchannelslope.Largediametertreesalonglandsideofaccessroad.

PhotoNumber:1

ObservationDataTable-Channels-Vegetation

ObservationNumber 2020-0029

ObservationRating Fair

ObservationLocation TopofLeftBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta49+00

GPSLatitude/Longitude

Point LineStart End

37.5965

DescriptionofObservation:Largediametertree;typicalchannelgeometry

PhotoCaption:Largediametertreeonleftbank.

PhotoNumber:1

Page 36: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage17of35

ObservationDataTable-Channels-Vegetation

ObservationNumber 2020-0030

ObservationRating Fair

ObservationLocation Other

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta34+00

GPSLatitude/Longitude

Point LineStart End

37.5935

DescriptionofObservation:Largediametertrees;typicalchannelgeometry

PhotoCaption:Largediametertreesonleftbankandalongrightbankaccessroad.

PhotoNumber:1

Page 37: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage18of35

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

6-6 Encroachments* Poor 0 0 3 LargeandnumerouspiecesofdebrisrelatedtonearbyhomelessencampmentsareinthechannelbeneathrailroadandBARTcrossings.Debris(e.g.,shoppingcarts)couldbetransporteddownstream.Encampmentson

bankscouldinhibitaccessinemergencysituations.Sponsorisworkingwithhomelesspopulationandlawenforcement.

ObservationalRatingGuidelinesGood Noencroachments(includinglogjamsordebrisaccumulation)andinappropriateactivitiesarepresent.

Fair Encroachmentsand/orinappropriateactivitiesdonotinhibitoperations,maintenance,floodfightactivities,orinspection,andarenotexpectedtonegativelyimpactchannelintegrityorflowcapacity.

Poor Encroachmentsand/orinappropriateactivitiesinhibitoperations,maintenance,floodfightactivities,orinspection,andareexpectedtonegativelyimpactchannelintegrityorflowcapacity.*SeeItemNo.6-7forapprovedalterations.Inspectorsshoulddocumentanyitem/activitythatmayadverselyaffecttheintegrityofthechannel,eveniftheconcernisbeyondthelimitsoftheeasement/right-of-way.

ObservationDataTable-Channels-Encroachments

ObservationNumber 2020-0031

ObservationRating Poor

ObservationLocation ChannelBottom

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta71+00

GPSLatitude/Longitude

Point LineStart End

37.6024

DescriptionofObservation:LargeandnumerouspiecesofdebrisinchannelbeneathrailroadandBARTcrossings

PhotoCaption:SignificantdebrisinchannelunderBARTtransitionstructure.ViewdownstreamfromrightbanktowardBARTcrossing.

PhotoNumber:1

Page 38: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage19of35

ObservationDataTable-Channels-Encroachments

ObservationNumber 2020-0032

ObservationRating Poor

ObservationLocation ChannelBottom

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta68+00

GPSLatitude/Longitude

Point LineStart End

37.6012

DescriptionofObservation:Largeandnumerouspiecesofdebrisinchannelbeneathrailroadcrossing

PhotoCaption:Significantdebrisinchannelincludesseveralshoppingcarts.ViewdownstreamfromrailroadbridgeatSta68+00.

PhotoNumber:1

ObservationNumber 2020-0032

ObservationRating Poor

ObservationLocation ChannelBottom

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta68+00

GPSLatitude/Longitude

Point LineStart End

37.6012

DescriptionofObservation:Largeandnumerouspiecesofdebrisinchannelbeneathrailroadcrossing

PhotoCaption:Significantdebrisinchannel.ViewdownstreamtowardrailroadbridgeatSta68+00.

PhotoNumber:2

Page 39: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage20of35

ObservationDataTable-Channels-Encroachments

ObservationNumber 2020-0033

ObservationRating Poor

ObservationLocation RightBank

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

68+00to70+00

GPSLatitude/Longitude

Point LineStart End

37.6020

DescriptionofObservation:Homelesssettlements

PhotoCaption:Homelesssettlementshavearisenonbothbankssincethepreviousinspectionandarecontributingtomajorchanneldebris.Settlementsincludevehicles,tents,andpilesofbelongings.Activityalongbanksislikelycontributingtoerosionanddamagetostructures.Sponsorindicatedtheyareworkingwithlawenforcementandthateveryonehasbeenaskedtovacatethearea.

PhotoNumber:1

Page 40: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage21of35

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

6-8 StructureStability(RetainingWalls,

DiversionStr.,GradeControlStr.,etc.)

Fair 1 3 0 CrackingonabutmentsbelowRailroadAvenue.WingwalldisplacementatUPRR/Amtrakcrossing.MinorjointmisalignmentbetweenRailroadAveandUPRR/Amtrakbridges(seejointssectionforimages).Concretestructureat

BARTcrossingwasnotinspectedcloselyduetonearbyhomelessencampment.

ObservationalRatingGuidelinesGood Structuresassociatedwiththechannelhavenoornegligibleinstability(e.g.,tilting,sliding,settlement,andbearingcapacity,etc.),arefullyfunctional,anddonotnegativelyimpactchannelintegrityorflow

capacity.

Fair Structuresassociatedwiththechannelhaveminorinstabilitythatwillnotpreventtheproperfunctionanddonotnegativelyimpactchannelintegrityorflowcapacity.

Poor Structuresassociatedwiththechannelareunstableandpreventproperfunction,negativelyimpactchannelintegrity,orflowcapacity.

N/A Therearenostructuresassociatedwiththechannel.* Monitortodetermineifthereisanyobservedmovementtoverifywhetherthemovementisactiveorinactive.* *Forevaluatingwaterstopsandinterlocks,seeMonolithJoint/Interlockitem6-11.

ObservationDataTable-Channels-StructureStability

ObservationNumber 2020-0034

ObservationRating Fair

ObservationLocation Other

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

78+00

GPSLatitude/Longitude

Point LineStart End

37.6042

DescriptionofObservation:SeparationbetweenwingwallsandtransitionstructureatUPRR/Amtrakcrossing

PhotoCaption:ViewdownstreamtowardUPRR/Amtrakcrossing.UPRR/AmtrakcrossingisparallelandupstreamofRailroadAvenue.

PhotoNumber:1

Page 41: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage22of35

ObservationNumber 2020-0034

ObservationRating Poor

ObservationLocation Other

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

78+00

GPSLatitude/Longitude

Point LineStart End

37.6042

DescriptionofObservation:Separationbetweenwingwallsandtransitionstructureat UPRR/Amtrakcrossing

PhotoCaption:Exposedrebarand5-6inchseparationbetweenupstreamsideof concretetransitionstructureandtheleftbankwingwall.Repair and monitor integrityofstructure.

PhotoNumber:2

ObservationNumber 2020-0034

ObservationRating Poor

ObservationLocation Other

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

78+00

GPSLatitude/Longitude

Point LineStart End

37.6042

DescriptionofObservation:Separationbetweenwingwallsandtransitionstructureat UPRR/Amtrakcrossing

PhotoCaption:2inchseparationbetweenupstreamsideofconcretetransition structureandtherightbankwingwall.Repair and monitorintegrityof structure.

PhotoNumber:3

Page 42: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage23of35

ObservationDataTable-Channels-StructureStability

ObservationNumber 2020-0035

ObservationRating Fair

ObservationLocation LeftBank

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

77+00

GPSLatitude/Longitude

Point LineStart End

37.6035

DescriptionofObservation:CrackingonleftbridgeabutmentbelowRailroadAvenue

PhotoCaption:ViewupstreamtowardRailroadAvenuebridge.

PhotoNumber:1

ObservationNumber 2020-0035

ObservationRating Fair

ObservationLocation LeftBank

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

77+00

GPSLatitude/Longitude

Point LineStart End

37.6035

DescriptionofObservation:CrackingonleftbridgeabutmentbelowRailroadAvenue

PhotoCaption:CrackingonleftabutmentbelowRailroadAvenuebridge.Viewofdownstreamsideofbridge.Structuralintegrityshouldbemonitored.

PhotoNumber:2

Page 43: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage24of35

ObservationDataTable-Channels-StructureStability

ObservationNumber 2020-0036

ObservationRating Good

ObservationLocation Other

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

23+00

GPSLatitude/Longitude

Point LineStart End

37.5911

DescriptionofObservation:AlvaradoNilesbridge

PhotoCaption:DownstreamviewtowardAlvaradoNilesbridge.

PhotoNumber:1

ObservationDataTable-Channels-StructureStability

ObservationNumber 2020-0037

ObservationRating Fair

ObservationLocation RightBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

77+00

GPSLatitude/Longitude

Point LineStart End

37.6037

DescriptionofObservation:HorizontalcracksonrightbridgeabutmentbelowRailroadAvenue

PhotoCaption:Horizontalcrackbelowrightbankupstreambridgeabutmenthasbeenfilled.ViewdownstreamtowardRailroadAvenuerightabutment.Structuralintegrityshouldbemonitored.

PhotoNumber:1

Page 44: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage25of35

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

6-9 ConcreteSurfaces Fair 0 2 0 Minorvegetationgrowthinweepholesandjoints.

ObservationalRatingGuidelinesGood Concretedisintegration(e.g.,scaling,dusting,blistering,etc.)orerosion(e.g.,abrasion,cavitation)doesnotexposecourseaggregate,AND

Concretespallingislessthan0.8inch(20mm)deepandlessthan6inches(150mm)inlength/diameter,ANDConcretecracksarelessthan0.04inch(1mm)wideandatthesurfaceorshallow,ANDTherearenoareasofexposedreinforcingsteelorembeddedsheetpiling.

Fair Concretedisintegrationorerosionhasexposedaggregateandthedepthsarelessthan0.4inch(10mm),ORConcretespallingareasare0.8inches(20mm)orgreaterindepthor6inches(150mm)orgreaterinlength/diameter,ORConcretecracksare0.04inches(1mm)to0.08inches(2mm)wideandatthesurfaceorshallow,ORThereareminorareasofexposedreinforcingsteelorembeddedsheetpile.

Poor Concretedisintegrationorerosionhasexposedaggregate,lossofmortar,andthedepthsare0.4inches(10mm)orgreater,ORConcretespallingareasare0.8inches(20mm)orgreaterindepthand6inches(150mm)orgreaterinlength/diameter,ORConcretecracksaregreaterthan0.08inch(2mm)wide,ORConcretecracksaredeeporthrough,ORTherearemajorareasofexposedreinforcingsteelorembeddedsheetpile.

N/A TherearenoConcreteSurfaces.

ObservationDataTable-Channels-ConcreteSurfaces

ObservationNumber 2020-0038

ObservationRating Fair

ObservationLocation Other

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

105+00

GPSLatitude/Longitude

Point LineStart End

37.6067

DescriptionofObservation:Minorcrackingonstructure

PhotoCaption:Minorcrackingonstructure.Minorvegetationinweephole.

PhotoNumber:1

Page 45: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage26of35

ObservationDataTable-Channels-ConcreteSurfaces

ObservationNumber 2020-0039

ObservationRating Fair

ObservationLocation LeftBank

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta22+00

GPSLatitude/Longitude

Point LineStart End

37.5909

DescriptionofObservation:VegetationgrowthonconcretetransitionstructurebelowAlvaradoNilesRoad.

PhotoCaption:VegetationgrowthinweepholeatbaseoftransitionstructurewallontherightbankdownstreamofAlvaradoNilesRoad.Removevegetationandcheckconcreteintegrity.

PhotoNumber:1

ObservationNumber 2020-0039

ObservationRating Fair

ObservationLocation LeftBank

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta22+00

GPSLatitude/Longitude

Point LineStart End

37.5909

DescriptionofObservation:VegetationgrowthonconcretetransitionstructurebelowAlvaradoNilesRoad.

PhotoCaption:1. VegetationgrowthinjointofleftbanktransitionstructuredownstreamofAlvaradoNilesRoad.Removevegetationandcheckconcreteandjointintegrity.2.Vegetationalongtophalfoftransitionstructurewall.Removevegetationandcheckconcreteandjointintegrity.

PhotoNumber:1

Page 46: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage27of35

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

6-11 PavingSlabandStructureMonolithJoints/Interlocks

Fair 0 2 0 Minorvegetationinsomejoints.

ObservationalRatingGuidelinesGood Jointfillermaterialisingoodcondition,exteriorjointsealantisintact,andcracking/desiccationisminimal,AND

Eachsheetpileisinterlockedfromtoptobottomandshownosignsofinterlockdistress.

Fair Jointfillerhasappreciabledeteriorationtothepointwhereithasbeenlostand/orwaterstopisvisibleinsomelocations,ORConcretespallingorcrackinghasdamagedthejointbuthasnotcompromisedwatertightnessofthejoint/waterstop,ORTearsorholesinthewaterstop,donotexceed25%oftheslablengthorwallheight,ORSheetpileinterlocksshowminimalsignsofdeformationormovementrelativetoeachotherandarenotdisengaged.

Poor Concretespallingorcrackinghasdamagedthejointandhascompromisedwatertightnessofthejoint/waterstop,ORDamagedjointsarenolongerwatertightandmaypermitpipingofembankmentorfillmaterialsthroughoraroundthejointduringaflood,ORTearsorholesinwaterstopexceed25%oftheslablengthorwallheight,ORSheetpileinterlockshaveexcessivedeformation,disengaged,orbuckled.

N/A Therearenomonolithjointsorinterlocksrequired.

ObservationDataTable-Channels-PavingSlabandStructureMonolithJoints/Interlocks

ObservationNumber 2020-0040

ObservationRating Fair

ObservationLocation RightBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

88+00

GPSLatitude/Longitude

Point LineStart End

37.6061

DescriptionofObservation:TypicalconditionofjointsupstreamofWhippleRoadtransitionstructure

PhotoCaption:Rightbankconcretelining

PhotoNumber:1

Page 47: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage28of35

ObservationNumber 2020-0040

ObservationRating Fair

ObservationLocation RightBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

88+00

GPSLatitude/Longitude

Point LineStart End

37.6061

DescriptionofObservation:TypicalconditionofjointsupstreamofWhippleRoadtransitionstructure

PhotoCaption:Minorvegetationgrowthinjointsandweepholesalongrightbankconcretelining.Minorcracking.

PhotoNumber:2

ObservationDataTable-Channels-PavingSlabandStructureMonolithJoints/Interlocks

ObservationNumber 2020-0041

ObservationRating Fair

ObservationLocation Other

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

77+00

GPSLatitude/Longitude

Point LineStart End

37.6038

DescriptionofObservation:JointconditionalongrightandleftbanksbetweenUPRR/AmtrakbridgeandRailroadAvenuebridge

PhotoCaption:ViewdownstreamfromUPRR/AmtrakcrossingtowardRailroadAvenue.

PhotoNumber:1

Page 48: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage29of35

ObservationNumber 2020-0041

ObservationRating Fair

ObservationLocation Other

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

77+00

GPSLatitude/Longitude

Point LineStart End

37.6038

DescriptionofObservation:JointconditionalongrightandleftbanksbetweenUPRR/Amtrak bridgeandRailroadAvenuebridge

PhotoCaption:Jointmisalignment(1-2inches)alongrightbankwall.Viewdown atjointfromRailroadAveBridge.Jointsshouldbefilledandfree ofvegetationanddebris. Repair and monitor

PhotoNumber:2

ObservationNumber 2020-0041

ObservationRating Fair

ObservationLocation Other

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

77+00

GPSLatitude/Longitude

Point LineStart End

37.6038

DescriptionofObservation:JointconditionalongrightandleftbanksbetweenUPRR/Amtrak bridgeandRailroadAvenuebridge

PhotoCaption:Jointmisalignment(<1inch)alongleftbankwall.Viewdownat jointfromRailroadAvenuebridge. Repair and monitor

PhotoNumber:3

Page 49: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage30of35

ObservationNumber 2020-0041

ObservationRating Fair

ObservationLocation Other

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

77+00

GPSLatitude/Longitude

Point LineStart End

37.6038

DescriptionofObservation:JointconditionalongrightandleftbanksbetweenUPRR/AmtrakbridgeandRailroadAvenuebridge

PhotoCaption:Concretecrumblingalongrightbankwalljoint.

PhotoNumber:4

Page 50: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage31of35

ItemNo. RatedItem ItemRating NumberofObservationsGood Fair Poor

ItemRatingJustification

6-12 Other Fair 0 8 0 Generallygoodsodcoverageonlowerslopes.Additionalsodcoverageontheupperrightbankslopescouldmitigateerosionproblemsnexttotheaccessroad.Minimalanimalburrowsobserved.O&Mmanual(section4)shouldbeupdatedwithcross-sectionmonitoringlocationstofacilitatemonitoringofgabionconditions(e.g.,whethergabionshaveshiftedordeteriorated),

channelsedimentation,andchannelflowcapacity.

ObservationalRatingGuidelinesGood Observationisanegligibledeficiencythatshouldbecorrectedbuthasbeenoperatedandmaintainedinawaythatmeetstheintentoftheinspectioncriteriaherein,andisnotexpectedtohaveanegativeimpact

ontheintegrityofthechannel

Fair Observationisadeficiencythatshouldbecorrected,butisnotcurrentlyexpectedtohaveanegativeimpact.Ifnotcorrected,thisdeficiencycouldleadtoanegativeimpactofthechannel.

Poor Observationisaseriousdeficiencythat,initscurrentcondition,isexpectedtohaveanegativeimpactontheintegrityofthechannel.

N/A Therearenootherobservations.

ObservationDataTable-Channels-Other

ObservationNumber 2020-0042

ObservationRating Fair

ObservationLocation TopofRightBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta94+00

GPSLatitude/Longitude

Point LineStart End

37.6067

DescriptionofObservation:Sodcoverage

PhotoCaption:TypicalsodcoveralongthereachfromMissionBlvdtoWhippleAve.Sodcoverageispresentonthelowerslope,butmissingontheupperslopenexttotheaccessroad.

PhotoNumber:1

Page 51: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage32of35

ObservationDataTable-Channels-Other

ObservationNumber 2020-0043

ObservationRating Fair

ObservationLocation Other

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta72+00

GPSLatitude/Longitude

Point LineStart End

37.6024

DescriptionofObservation:Channelgeometry

PhotoCaption:ChannelgeometryjustupstreamofBARTcrossing.UpdateO&Mmanualwithcross-sectionmonitoringlocations.

PhotoNumber:1

ObservationDataTable-Channels-Other

ObservationNumber 2020-0044

ObservationRating Fair

ObservationLocation RightBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

72+00

GPSLatitude/Longitude

Point LineStart End

37.6024

DescriptionofObservation:Animalburrows

PhotoCaption:Multipleanimalburrows(3-4indiameter)alongrightbankshelfinthechannel.

PhotoNumber:1

Page 52: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage33of35

ObservationDataTable-Channels-Other

ObservationNumber 2020-0045

ObservationRating Fair

ObservationLocation TopofRightBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta47+00

GPSLatitude/Longitude

Point LineStart End

37.5961

DescriptionofObservation:Sodcoverage

PhotoCaption:TypicalsodcoveragealongthelowerreachnexttoLewisAve.Sodcoversthelowerportionoftheslope,butismissingalongtheupperslopenexttotheaccessroad.Erosionvisiblewheresodcoverageismissing.

PhotoNumber:1

ObservationDataTable-Channels-Other

ObservationNumber 2020-0046

ObservationRating Fair

ObservationLocation WatersideSlope

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

43+00

GPSLatitude/Longitude

Point LineStart End

37.5954

DescriptionofObservation:Channelgeometry

PhotoCaption:Slopeonleftbanktransitionsfromgradualslopetoshelf-like.Stoneripraphasbeenplacedatupstreamendofshelf.Unclearifverticalportionsofslopesareerosionsitesorgabions.UpdateO&Mmanualwithcross-sectionmonitoringlocationstofacilitatemonitoringofchannelcapacityovertime.

PhotoNumber:1

Page 53: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage34of35

ObservationDataTable-Channels-Other

ObservationNumber 2020-0047

ObservationRating Fair

ObservationLocation TopofRightBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta41+50

GPSLatitude/Longitude

Point LineStart End

37.5952

DescriptionofObservation:Sodcoverage

PhotoCaption:Typicalsodcoveragealongthelowerreach.Sodcoversthelowerportionoftheslope,butismissingalongtheupperslopenexttotheaccessroad.

PhotoNumber:1

ObservationDataTable-Channels-Other

ObservationNumber 2020-0048

ObservationRating Fair

ObservationLocation TopofRightBank

ObservationStatus Unresolved

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta55+50

GPSLatitude/Longitude

Point LineStart End

37.5982

DescriptionofObservation:Animalburrows

PhotoCaption:Animalburrow(3-4inches)onrightbankinthereachalongLewisRoad.

PhotoNumber:1

Page 54: Levee Inspection Report

6. Channels

LeveeSegment/System-AlamedaZone05,LineL-DryCreek(DYCR)

ChannelsPage35of35

ObservationDataTable-Channels-Other

ObservationNumber 2020-0049

ObservationRating Fair

ObservationLocation RightBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta36+00

GPSLatitude/Longitude

Point LineStart End

37.5940

DescriptionofObservation:Animalburrows

PhotoCaption:Animalburrows(3-4inchesdiameter)onrightbanknexttoaccessroad.

PhotoNumber:1

ObservationNumber 2020-0049

ObservationRating Fair

ObservationLocation RightBank

ObservationStatus TypicalConditions

Monitor(Y/N) N

YearsSince1 Observedst 0

LeveeStationorRiverMile

Point LineStart End

Sta36+00

GPSLatitude/Longitude

Point LineStart End

37.5940

DescriptionofObservation:Animalburrows

PhotoCaption:AnimalburrowsonrightbanknexttoaccessroadinthereachaboveAlvaradoNilesRoad.Viewupstream.

PhotoNumber:1

Page 55: Levee Inspection Report

LeveeInspectionReport Page1of5

LeveeInspectionReferenceGuideThepurposeoftheLeveeInspectionReferenceGuideistoprovidesupportingdirectionforconductingperiodic,routineandspecialleveeinspections,determiningitem,segmentandsystemratingsandfinalizingtheLeveeInspectionReport.ContentoutlinedintheLeveeInspectionReferenceGuidecomplementstheInspectionEngineeringandConstructionBulletin(ECB)andLeveeSafetyEngineerCircular(EC)1165-2-218.

A. Definitions:

ApprovedAlteration-Anyactionthatbuildsupon,alters,improves,moves,oroccupiesaleveesystem.Forfederallyauthorizedleveesystems,aUSACESection408permissionhasbeenissued.Fornon-federallyconstructedandlocallymaintainedleveesystems,theleveesponsorisawareofandhasapprovedthealteration.Encroachment-Anon-projectitemsuchastrash,debris,structures,obstructionsorunauthorized/inappropriateactivitieswithintheeasement/right-of-wayofthelevee.Forfederallyauthorizedleveesystems,noUSACESection408permissionhasbeenissued.Fornon-federallyconstructedandlocallymaintainedleveesystems,theleveesponsorisunawareofand/orhasnotapprovedthenon-projectitemoractivity.Feature-Acomponentofaleveesegment/system(e.g.Embankment,Floodwall,Channel,etc.).Leveesegments/systemsmayhavemultipleFeaturesthatfunctiontogethertoexcludewaterfromadefinedleveedarea.MainFeatureshavetheirownsectionintheLeveeInspectionChecklist.Item-AphysicalorfunctionalcharacteristicofaleveeFeature(e.g.Encroachments,SodCover,Seepage,etc.)thatcanbeusedtoassesstheconditionofthelevee,informriskassessments,and/orevaluateadequacyofoperationsandmaintenance.Levee-Aman-madestructure,usuallyanearthenembankmentorfloodwall,designedandconstructedinaccordancewithsoundengineeringpracticestocontain,control,ordiverttheflowofwatersoastoprovidereasonableassuranceofexcludingtemporaryfloodingfromtheleveedarea.Inspection-Avisualexaminationwiththeintentofcomparingtoestablishedstandards.NationalFloodInsuranceProgram(NFIP)-AvoluntaryprogramadministeredbytheFederalEmergencyManagementAgency(FEMA)inwhichacommunityadoptsandenforcesafloodplainmanagementordinanceandFederally-backedfloodinsuranceismadeavailabletopropertyownersinthecommunity.NegativeFinding-Aconclusionthatthereissufficientinformationtodeterminethataspecificcriteriaof44CFR65.10fortheNFIPhasnotbeenmetasaresultofascreeninglevelriskassessmentorleveeinspection.Non-ProjectSegment-aformofmanmadehighgroundwhichaleveesystem/segmenttiesinto,whoseexistenceandperformanceisnecessaryforexcludingfloodwatersfromtheleveedarea,butisnotunderanyUSACEauthority.Observation-Aspecificlocation(pointorline)whereanItemisevaluatedandratedbasedontheobservationratingguidelines(e.g.anareaofleveethathaslessthan50%sodcoverage).ObservationLocationDescription-Informationthatfurtherdescribestheobservationlocationsuchaslandorwatersideoftheleveeorproximityalongtheslopeorcrown,thatprovidesthereaderwithsufficientinformationtofindtheobservationduringfuturemaintenanceactivitiesorinspections.Observationlocationdescriptionsmayincludethefollowing:landsidetoe,landsidetoe&slope,landsideleveeslopeonly,landsideslope&crown,slopes&crown,crown,slopes,toes,watersidetoe,watersidetoe&slope,watersideleveeslopeonly,watersideslope&crown,other.ObservationNumber-Anumericvaluethatisusedtoidentifyaspecificobservationduringaninspection.ObservationRatingGuidelines-Establishedparameterstoassistaninspectoringradingthevisualconditionofaspecificlocation(pointorline).PositiveFinding-Aconclusionthatthereissufficientinformationtodeterminethataspecificcriteriaof44CFR65.10fortheNFIPhasbeenmetasaresultofascreeninglevelriskassessmentorleveeinspection.PrimaryItem-AnInspectionItemdeemedtobeessentialtotheperformanceoftheleveetotheextentthatlackofcorrectiveactionand/ordeteriorationoftheItem'sconditioncouldlikelyresultinfloodingoftheleveedarea.PrimaryItemsaredesignatedintheinspectionchecklist.RehabilitationProgram-TheRehabilitationProgram,administeredbyUSACEinaccordancewithPublicLaw84-99,isavoluntaryprogrambywhichUSACEcanassistinrepairingleveesystemsandotherfloodriskmanagementprojectsafterafloodeventiftheprojectsmeetspecifiedeligibilitycriteria.RiskManagementActivities-Establishmentofriskmanagementmeasuresthroughidentification,evaluation,implementationandmonitoring.Thepurposeofriskmanagementistotakeactionstoeffectivelyandefficientlymanagerisksbyoptimizingfundingandresources.SecondaryItem-AnyInspectionItemnotdeemedtobeaPrimaryItem.ItisequallyimportanttoobserveanddocumentSecondaryItemssincetheconditioncouldnegativelyaffecttheintegrityoftheleveesystemifproperlymaintained.Significant-Thenumberand/orseverityofObservationRatingsorSecondaryItemRatingsresultsinthepotentialtosubstantiallyincreaseleveesegmentriskasqualitativelydeterminedbythedistrictLeveeSafetyOfficer(LSO)giventheinformationfromtheinspectionteam.Insomecases,significancemaybeusedtodetermineItemorSegmentratings.

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B. TypesofInspections:ThisLeveeInspectionReportmustbeusedforRoutineInspectionsandPeriodicInspections.ForSpecialInspections,useallsectionsthatapplybasedonthepurposeoftheSpecialInspection.ThetypesandpurposeofinspectionscoveredbythisLeveeInspectionReportareoutlinedbelow:

RoutineInspection(RI) PeriodicInspection(PI) SpecialInspection(SI)AnRIisavisualinspectionofaleveesystemtodocumentthecondition,verifytheadequacyofoperationsandmaintenanceandto(1)informcorrectiveactions,(2)riskmanagementactivities,and(3)anupdatetoariskassessmentandperiodicassessmentreport(whenappropriate).

APIisacomprehensivevisualinspectionofaleveebyateamofsubjectmatterexpertstodocumentthecondition,verifytheadequacyofoperationsandmaintenance,andtoinform(1)correctiveactions,(2)riskmanagementactivities,and(3)anupdatetoariskassessmentandperiodicassessmentreport(whenappropriate).

AnSIisaninspectionthatisrequiredduetochangedconditionsortodocumentpostfloodconditions.

C. LeveeCategories:EachsegmentwillhaveitsownLeveeInspectionReport.

LeveeSegment LeveeSystem LeveeProjectAleveesegmentisdefinedasadiscreteportionofaleveesystemthatisoperatedandmaintainedbyasingleentity.SegmentscanbemadeupofoneormoreFeatures.

Aleveesystemiscomprisedofoneormoreleveesegmentsthatcollectivelyprovidefloodriskreductiontoadefinedarea(commonlyreferredtoasleveedarea).HighwayandrailroadembankmentsorotherNon-ProjectSegmentsthatareintegraltotheperformanceofexcludingfloodwaterfromtheleveedareawillbeconsideredaspartofaleveesystem.

AleveeprojectismadeupofoneormoreleveesystemswhichareunderthesameCongressionalorotherorganizationalentityauthorization.

D. UseoftheLeveeInspectionChecklist:

TheintentofthisinformationistosupplementtheobservationalratingguidelinesdescribedintheleveeinspectionchecklistsectionoftheoverallLeveeInspectionReport.

GeneralNotes:• TheleveeinspectionchecklistisintendedforusewiththeUSACEportfoliooflevees.TheUSACEportfolioofleveesincludes:1)USACEoperatedand

maintained;2)Federallyauthorized-leveesponsoroperatedandmaintained;and3)Non-FederalleveesystemseligibleforassistanceintheRehabilitationProgram(RP).

• IntheLeveeInspectionReport,includeonlytheFeaturesectionsofthechecklistthatapplytothesegmentbeinginspected.• AsingleobservationcouldbenotedthatimpactsmorethanonechecklistItemand/orFeature.Ataminimum,ifsomethingobservedimpactstheembankment,

floodwallorclosure,itmustberatedinthosesectionsofthechecklist.• InsomeinstancesanObservationmaynotfitwithinanyoftheexistingItemcategories.Forthesespecialcases,anoptionisprovidedtodescribetheObservation

underan"Other"Itemcategory.Sincethe"Other"ObservationalRatingGuidelinesaregeneric,ahigherstandardofcareshouldbetakentoclearlydescribetheItemandconditiontojustifytherating.

• Inspectorsshoulddocumentanyobservation/activitythatcanbevisuallyseenfromtheleveethatmayadverselyaffecttheintegrityofthelevee,eveniftheconcernisbeyondthelimitsoftheeasement/right-of-way,withdocumentationthattheobservationisoutsidetheeasement/right-of-way.

• ObservationsassociatedwithapprovedSection408permissionsorLeveeSponsorpermitsformodificationsshouldberatedunderthecorrespondingItemandFeatureandmayalsoberated,atthediscretionoftheDistrict,under"ApprovedAlterations".

• SpecifictableshavebeendevelopedintheNationalLeveeDatabase(NLD)todocumentfrequencyofinspection,testingoroperationandconditionforthefollowingFeaturesorItems:pipes,gates,reliefwells,toedrainsandclosures.ApplicabletablesshouldbeincludedintheLeveeInspectionReport.

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SpecificLeveeInspectionReportSections• Thesectionlabeled"LeveeInspectionSummary"isrequiredforeveryRoutineandPeriodicinspection.• Thesectionlabeled"GeneralItems"isrequiredforeveryRoutineandPeriodicInspection,alongwithallothersectionsthatcorrespondtoFeaturesinthelevee

segment.GeneralItemsalsoincludesInstrumentation.TheintentofthisItemistodocumenttheaccessibilityandconditionofinstrumentationsuchaspiezometers,jointbolts,jointmovementindicators,inclinometers,etc.

• Thesectionlabeled"Embankments"isintendedforallearthenembankments.Conditionsthatmayimpacttheembankmentshouldberatedunderthissection.• Thesectionlabeled"Floodwalls"includesalltypesoffloodwalls(includingI-walls,shallow&deepfoundationsupportedwalls,etc.).Conditionsthatmayimpact

thefloodwallshouldberatedunderthissection.• Thesectionlabeled"PipesandAssociatedDrainageItems"includesallgravityflowandpressurizedpipesthatpassoverorthroughtheleveeanditsfoundation,as

wellaspipesawayfromthelevee,alongwithpipeclosuresanddrainagefeatures.Thisincludesallpipesandassociatedgatesanddrainageditches,pondingareasandstructuresthatarefunctioningasinteriordrainagecomponentsalongthelevee.Pondingareasaredefinedasdesignatedareasassociatedwithaleveesystemwiththeprimaryfunctiontostorewatertomanagewaterelevations.Thesepondingareasaretypicallylocatedontheinterioroftheleveeandmanytimesfunctioninconjunctionwithpumpstations.

• Thesectionlabeled"Closures"includesallclosurestructures,sandbagandearthenclosures,stoplogsandgates.ConduitandculvertclosuresareratedinthePipesandAssociatedItemssectionandreferredtoas"gates".Districtsshalldetermine,onacase-by-casebasis,thestartingandstoppinglocationforembankments,floodwallsandclosures.

• Thesectionlabeled"Channels"includeschannelsthathavebeenconstructedinassociationwiththeleveesystem.Thissectionmayalsobeusedtoinspectchannelsindependentoflevees.For"shoaling",theobservationalguidelinesdescribingvegetationinashoalareintendedtodocumentthepermanenceoftheshoalanditslikelyimpactonchannelintegrityorflowcapacity.

• Thesectionlabeled"PumpStations"includesthestructureofthepumpstationandallassociatedmechanical/electricalsystemsandequipment.IntakeanddischargepipesareincludedinthePipesandAssociatedItemssection.

• For"PipesandAssociatedDrainageItems","Channels","PumpStations",conditionsofItemsthatimpactembankments,floodwalls,orclosures(e.g.ditches,pondingareas,bankstabilityorerosion)shouldalsoberatedundertheappropriateEmbankments,Floodwalls,orClosuressectiontoreflecttheimpactonleveeintegrity.

• ObservationRatingGuidelinesfor"SodCover","Rutting",and"AnimalBurrows"focusonadefinedareatoestablishtherating.However,Districtshavetheflexibilitytoincludepoints/linesandratingsforindividualobservations.

• EachfeatureoftheinspectionchecklistincludesanItementitled"Other"whichistobeusedformiscellaneousobservationsthatarenotalreadycoveredelsewherewithinthechecklist.

• SeepageObservationratingsshouldconsiderinformationcollectedduringrecentfloodeventsbyleveereachandcomparethoseobservationstothemostrecentriskassessment.TheintentisnottoincludeeveryseepageorsandboillocationasindividualobservationsintheLeveeInspectionReport.TheSeepageItemratingshouldthenevaluatehowperformancealongeachreachimpactsseepageforthesegment.

• DistrictsmustusejudgmenttodeterminethedegreetowhichconditionshaveeitherimprovedorworsenedsincethelastriskassessmentwhenfinalizingtheObservationratingsforSeepage,Stability,andErosion.ThisshouldbeaccomplishedbyunderstandingtheconditionsthatledtotheHL,ML,orLLestimatesintheriskassessmentandhowthosecomparetothecurrentconditions.

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E. ObservationRating:RatingsforindividualinspectionobservationsshallbebasedontheObservationRatingGuidelinesfortheassociatedItem.Documentationoftheleveeinspectionobservationsshouldinclude,ataminimum:1. Observationnumberassociatedwiththepointorline2. Observationratingof"Good","Fair"or"Poor"3. ObservationlocationdescriptionasdefinedinSectionAwithintheReferenceGuide4. Whethertheobservationisanunresolvedissuefromaformerinspection5. Documentationofthenumberofyearssincetheobservationwasfirstobserved6. Leveestation,rivermileand/orGPSlatitude/longitudeassociatedwiththepointorline7. Descriptionoftheobservationwhichisadetailednarrativethatexplainswhyanobservationwasdocumentedandtherationalefortheobservationrating8. Photoassociatedwiththeobservationpointorline.9. Photonumberrelatedtoaphotographoftheobservationpointorline.

SomeObservationRatingGuidelinescontainqualitativetermssuchas"substantial","major","minor","likely",etc.todetermineratings.Whiletheguidelinesareintendedtoprovidespecificdirectiontoratingvariousobservationsduringaninspection,engineeringjudgmentbyfieldinspectionpersonnelaswellastheLSPMandLSOmaybeanimportantpartofthefinalobservationratings.TheLSPMandLSOshouldworkwiththeinspectionteamtoensureconsistency,inspection-by-inspection,whenqualitativelydeterminingthemeaningofthesetermswithinthecontextofobservationratings.

F. ItemRatings(PrimaryandSecondary)Itemratingswillbedeterminedbythecriteriainthetablebelow.EachItemratingdefinitionreferstoadeterminationofwhetheranyobservationshavebeendeemedsignificant.SeeSectionA-Definitionsforguidanceonthedeterminationofsignificantobservations.

GoodItem FairItem PoorItemForPrimaryItems,allobservationsmustberated"Good".

ForSecondaryitems,allobservationsarerated"Good",ORoneormoreobservationsarerated"Fair"butthenumberorseverityofobservationsisnotdeemedsignificant.

ForPrimaryItems,noobservationsarerated"Poor"ANDoneormoreobservationsarerated"Fair".

ForSecondaryItems,oneormoreobservationsarerated"Fair"ANDthenumberorseverityofobservationsistoosignificanttoratetheitem"Good".ASecondaryItemmayberated"Fair"ifthenumberorseverityof"Poor"ratedobservationsisnotdeemedsignificant.

ForPrimaryItems,oneormoreobservationsarerated"Poor".

ForSecondaryItems,oneormoreobservationsarerated"Fair"OR"Poor"andthenumberorseverityofobservationshasbeendeemedsignificant.

DocumentationoftheItemratingsshouldinclude,ataminimum:1. Itemratingof"Good","Fair"or"Poor"2. Numberof"Good","Fair"and"Poor"observationscollectedduringtheinspection3. JustificationoftheItemratingIftheItemdoesnotexistwithintheleveesegment,theItemshouldberated"N/A".

SpecificrecommendationsforeveryObservationandItemshouldnotbeincludedintheLeveeInspectionReport.However,ifanotablechangeinconditionisobservedduringaninspection,theLISallowsfortheinclusionofaRecommendedActionforthatItem.Ifthisoptionisused,districtsshallensurethattherecommendationsareincludedintheupdatetotheRiskManagementSummaryandprioritizedbyrisk.

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G. Segment/SystemRatings:Segmentandsystemratingswillbedeterminedbythecriteriainthetablebelow.Whenassigningasegmentrating,PrimaryandSecondaryItemratingsforeveryleveesegmentfeaturemustbeconsidered.EachSegmentratingdefinitionreferstoadeterminationofwhetherthenumberofSecondaryItemratingshasbeendeemedsignificant.SeeSectionA-DefinitionsforguidanceondeterminingifthenumberofSecondaryItemratingsissignificant.ThesegmentratingcannotexceedtheratingforthelowestratedPrimaryItem.ThebasisforthesegmentratingshallbeappropriatelydocumentedintheLeveeInspectionSummarysectionofthisLeveeInspectionChecklist.Whena"Fair"segmentratingisassigned,includespecificdiscussionofany"Poor"ratedsecondaryitemsandrationaleforthesegmentratingbasedontheobservedphysicalconditionsandthenumberorseverityofpoorobservations.Includethebasisfora"Poor"segmentratingfromthedefinitionsbelowwithsupportingexplanationsandrationaleintheSummaryofSegmentRatingsection.TheoverallSystemratingshallbethelowestSegmentratingwithintheSystem.

GoodSegment FairSegment PoorSegmentPrimaryItems:AllItemsarerated"Good"AND

SecondaryItems:OneormoreItemsarerated"Good"or"Fair"ANDthenumberof"Fair"itemratingsisnotsignificant.NoItemsarerated"Poor".

PrimaryItems:AllItemsarerated"Good"or"Fair"AND

SecondaryItems;OneormoreItemsarerated"Fair"or"Poor"ANDthenumberof"Poor"itemratingsisnotsignificant.

PrimaryItems:OneormoreItemsarerated"Poor"AND

SecondaryItems:AsignificantnumberofItemsarerated"Fair"or"Poor".

GoodSystem FairSystem PoorSystemAllsegmentsinthesystemarerated"Good". Atleastonesegmentinthesystemisrated"Fair",butno

segmentsarerated"Poor".Atleastonesegmentinthesystemisrated"Poor".

AleveeSystemshouldberated"No-verdict"if(1)anon-projectsegmentcannotbeeninspectedand(2)allotherSegmentsoftheSystemhavebeenrated"Good"or"Fair".DespiteaNon-ProjectSegmentnotbeinginspected,theSystemshouldberated"Poor"ifoneormoreSegmentshavebeenrated"Poor".Anexplanationastowhyanon-projectsegmentcannotbeinspectedshouldbedocumentedintheLeveeInspectionSummarySection.

H. GeneralSystemRatingDescription:ThedescriptionsbelowareintendedtoprovideageneralunderstandingaboutwhatitmeansforaleveesystemtoberatedasGood,Fair,orPoor.Thesedescriptionsshouldnotbeuseddirectlytodeterminealeveesystemrating.SystemratingsshallbeestablishedbyusingthecriteriapresentedinSectionG.Segment/SystemRatings.

GoodSystem FairSystem PoorSystemA"Good"leveesystemratinggenerallymeansthattheleveesystemmayhavesomenegligibleorminordeficienciesthatshouldbecorrectedbuthasbeenoperatedandmaintainedinawaythatmeetstheintentoftheinspectioncriteriaherein,andisnotexpectedtohaveanegativeimpactonperformance.

A"Fair"leveesystemratinggenerallymeansthattheleveesystemhasdeficienciesthatshouldbecorrected,butarenotcurrentlyexpectedtohaveanegativeimpact.Ifnotcorrected,thesedeficienciescouldleadtoanegativeimpactonperformance.

A"Poor"leveesystemratinggenerallymeansthattheleveesystemhasseriousdeficienciesthatrequirecorrectionbecausethesedeficienciesareexpectedtohaveanegativeimpactonperformance.

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Dry Creek - Alameda Zone 05 (Line L)

°

0 0.75 1.50.38 Miles

0 500 1,000250Feet

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Centerline Stationing

Whipple Road

Mission Blvd

Alvarado NilesRoad

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Railroad Avenue

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Pre-Inspection Form Page 1 of 2

Flood Damage Reduction Segment / System Inspection Report

Pajaro R. Right bank US FFCP PJRU

US Army Corps of Engineers®

Flood Damage Reduction Segment / System Public Sponsor Pre-Inspection Form

The following information is to be provided by the levee district sponsor prior to an inspection. This information will be used to help evaluate the organizational capability of the levee district to manage the levee segment / system maintenance program. 1. Levee segment / system and district: (name of the segment / system and levee district)

Dry Creek (Zone 5, Line L), Alameda County

2. Reporting period: (month/day/year to month/day/year)

Through 9/21/20

3. Summary of maintenance required by last inspection report:

4. Summary of maintenance performed this reporting period:

Routine vegetation maintnenance, debris removal, and silt removal.

5. Summary of maintenance planned next reporting period:

Routine vegetation maintnenance, debris removal, and silt removal.

6. Summary of changes to segment / system since last inspection:

N/A

7. Problems/ issues requiring the assistance of the US Army Corps of Engineers:

N/A

US Army Corps of Engineers®

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Pre-Inspection Form Page 2 of 2

Flood Damage Reduction Segment / System Inspection Report

Pajaro R. Right bank US FFCP PJRU

US Army Corps of Engineers®

Public Sponsor Pre-Inspection Report The following information is to be provided by the levee district sponsor prior to an inspection

8. Levee district organization: (elected or appointed levee district officials and key employees) Name Position Mailing Address Phone Number Email Address Daniel Woldesenbet Director of Public Works 399 Elmhurst, Hayward, CA 94544 510-670-5456 [email protected] Joihn Medlock, Jr. Deputy Director of Public Works,

Manitenance and Operations 951 Turner Court, Hayward, CA 94544 510-670-5504 [email protected]

Hank Ackerman Principal Civil Engineer, Flood Control Program Manager

399 Elmhurst, Hayward, CA 94544 510-670-5553 [email protected]

Mike Dutra Flood Control Maintenance Superintendent

951 Turner Court, Hayward, CA 94544 510-670-5528 [email protected]

Moses Tsang Supervising Civil Engineer, Flood Control Design Corps Primary Contact

399 Elmhurst, Hayward, CA 94544 510-670-6549 [email protected]

Carl Speaker Pump Station and Bridge Superintendent

951 Turner Court, Hayward, CA 94544 510-670-5509 [email protected]

Arthur Valderrama Supervising Civil Engineer, Flood Control Maintenance Engineer

951 Turner Court, Hayward, CA 94544 510-6705260 [email protected]