Kitsap County Stormwater Design Manual .4.2 Pipe Compaction Design and Backfill ... strap-footing

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Kitsap CountyStormwater

DesignManual

Figures & Tables

November 2009

DRAFT

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Figures

3.1 CoveredFuelIsland...............................................................................................................................................................................1

3.2 DripPan.....................................................................................................................................................................................................1

3.3 DripPanWithinRails.............................................................................................................................................................................1

3.4 LoadingDockwithDoorSkirt...........................................................................................................................................................2

3.5 LoadingDockwithOverhang............................................................................................................................................................2

3.6 EnclosetheActivity...............................................................................................................................................................................2

3.7 CovertheActivity...................................................................................................................................................................................2

3.8 SecondaryContainmentSystem......................................................................................................................................................3

3.9 LockingsystemforDrumLid.............................................................................................................................................................3

3.10 Covered&BermedContainmentArea...........................................................................................................................................3

3.11 MountedContainerwithDripPan...................................................................................................................................................3

3.12 Above-groundTankStorage..............................................................................................................................................................3

3.13 CoveredStorageforBulkSolids........................................................................................................................................................4

3.14 MaterialCoveredwithPlasticSheeting.........................................................................................................................................4

3.15 UncoveredWashArea...........................................................................................................................................................................4

4.1 RainfallIntensity-DurationCurves...................................................................................................................................................7

4.2 PipeCompactionDesignandBackfill.............................................................................................................................................8

4.3 PipeAnchorDetail.................................................................................................................................................................................9

4.4 CorrugatedMetalPipeCouplingand/orGeneralPipeAnchorAssembly.....................................................................10

4.5 DebrisBarrier(OffRoadRight-of-Way)........................................................................................................................................11

4.6 DebrisBarrier(InRoadRight-of-Way)..........................................................................................................................................12

4.7 NomographforSizingCircularDrainsFlowingFull................................................................................................................13

4.8 CircularChannelRatios.....................................................................................................................................................................14

4.9 BackwaterCalculationSheet...........................................................................................................................................................15

4.10 BackwaterCalculationSheetNotes..............................................................................................................................................16

4.11 BackwaterPipeCalculationExample...........................................................................................................................................17

4.12 BendHeadLossesinStructure.......................................................................................................................................................18

4.13 JunctionHeadLossinStructure....................................................................................................................................................19

4.14 TeeTypeEnergyDisipator................................................................................................................................................................20

4.15 PipeCulvertDischargeProtection................................................................................................................................................21

4.16 FlowDisposalTrench.........................................................................................................................................................................22

4.17 AlternativeFlowDisposalTrench..................................................................................................................................................23

4.18 GabionMattressDisipatorDetail..................................................................................................................................................24

4.19 Inlet/OutletControlConditions...................................................................................................................................................25

4.20 HeadwaterDepthforSmoothInteriorPipeCulvertswithInletControl.........................................................................26

4.21 HeadwaterDepthforCorrugatedPipeCulvertwithInletControl....................................................................................27

4.22 HeadforCulverts(PipeW/"N"=0.012)FlowingFullwithOutletControl......................................................................28

4.23 HeadforCulverts(PipeW/"N"=0.024)FlowingFullwithOutletControl........................................................................29

4.24 CriticalDepthofFlowforCircularCulverts................................................................................................................................30

4.25 MeanChannelVelocityvs.MediumStoneWeightandEquivalentStoneDiameter..................................................31

4.26 Riprap/FilterExampleGradationCurve......................................................................................................................................32

4.27 DitchesCommonSections.........................................................................................................................................................33

428 DrainageDitchesCommonSections.....................................................................................................................................34

4.29 GeometricElementsOfCommonSections...............................................................................................................................35

4.30 OpenChannelFlowProfileComputation..................................................................................................................................36

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4.31 DirectStepBackwaterMethod-Example..................................................................................................................................37

4.32 FlowSplitter,OptionA......................................................................................................................................................................38

4.33 FlowSplitter,OptionB.......................................................................................................................................................................39

4.34 FlowSpreaderOptionA:AnchoredPlate...................................................................................................................................40

4.35 FlowSpreaderOptionB:ConcreteSumpBox..........................................................................................................................41

4.36 FlowSpreaderOptionC:NotchedCurbSpreader..................................................................................................................42

4.37 FlowSpreaderOptionD:Through-CurbPort............................................................................................................................42

5.1 BMP5.01RockFilledInfiltrationTrench......................................................................................................................................45

5.2 AlternativeRockFiledInfiltrationTrenchSystem............................................