Urban Underground Improvement Checklist

7/29/2019 Urban Underground Improvement Checklist

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UrbanUndergroundImprovementsChecklist

1. Uponreceiptofplansandproposal.A. ExaminethePlansandmakenotesofanyquestionsthatyouhave. Ifthereisaconflict

Planswill

govern

over

Standard

Specifications

or

Supplemental

Specifications.

i. Notes.ii. ReadtheGeneralNotestodeterminedetailsthatareprojectspecificandnot

includedinthespecificationsthatapplytoundergroundimprovements. Plan

notessupersedespecificationsifthereisaconflict.

b. EstimateofQuantitiesi. Findoutwhatquantitiesarefortheundergroundimprovements.

c. DetailSheetsi. Gothroughdetailsheetsandfinddetailsheetsthatpertaintounderground

improvementssuchasmanhole,drain,orinletdetails.

ii. Checkforwatermainorsanitarysewerdetailsforpipefittings,valves,orthrustblock

details.

iii. Checktoseeifinsulationboardisrequiredforwatermainandwhereitisrequired.

iv. Findpipebackfilldetailsforpipesandlearnwhattypeofpiperequireswhattypeofbackfill.

1. Typeofmaterialusedforbackfill.2. Excavationlimits.3. Dimensionsofbackfillaroundpipe.4. Compactionrequirementsforpipebackfill.

v. Checktoseeifanyofthepipesrequirespecialerosioncontrolfeatures.1. Fiberrolls2. Erosioncontrolmats3. RRFabricwithRiprap4. StrawMat

d. Removalsectioni. Seewhatpipes,manholes,inlets,orfirehydrantsneedtoberemoved.

e. Drainagesummarysheeti. Lookoverthemanholeandinletdetails.ii. Checkshopdrawingsforeachmanholeorinlettomakesuretheyareallthe

sameasthedrainagesummarysheets.

iii. Makesureallelevationsarecorrectforeachmanholeorinlet.f. PlanandProfileStormSewer.

i. Checkflowlineelevationsinsuretheymatchupwiththedrainagesummarysheets.

ii. Notelocations,sizes,andtypesofmanholesandinletsbeinginstalled.iii. Makesurethereisenoughpipelengthinbetweenthemanholesorinletsto

connectthemtogether.(noteStaandoffsetofManholesorinletsarethecenter

ofeachone)

iv. Doriserheightsofmanholesmatchthedrainagesummarysheetsandshopdrawings.

v. Areinletsinproperlocations(lowpointinsagcurvessotherearenopuddles)?


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vi. Notewhereinsulationboardisneededandmarkinyourplansifnotmarked.vii. Noteifitcrossesutilitiesorotherundergroundimprovementsandisthere

enoughroomtosetstormdrainimprovementsintheselocations.

viii. Iserosioncontrolrequiredonanyoftheinletsorendsections?ix. Makesureeachpayitemisonsheetandthatitmatchesthedrainagesummary

sheet.

1. Foreachtypeofinlet2. Eachsizeofmanhole,riser,orpipe3. AggregateBaseCourse4. Thecorrectquantityiscalledoutforeachitem(LF,EA,BDFT,CYor

TONS)

g. PlanandProfileSanitarySewer.i. Checkflowlineelevationsinsuretheymatchupwiththedrainagesummary

sheets.

ii. Notelocations,sizes,andtypesofmanholesbeinginstalled.iii. Makesurethereisenoughpipelengthinbetweenthemanholestoconnect

manholes.(noteStaandoffsetofManholesarethecenterofeachone)

iv. Doriserheightsofmanholesmatchthedrainagesummarysheetsandshopdrawings.

v. Doessanitarysewercrossthewatermain?Ifitdoesisthereenoughclearanceoroffsetbetweenthetwopipesforadequatesafety?(minimum18inchesvertical

clearance)

vi. Makesureeachpayitemisonsheetandthatitmatchesthedrainagesummarysheet.

1. Eachsizeofmanhole,riser,orpipe2. Thecorrectquantityiscalledoutforeachitem(LF,EA)

h. PlanandProfileWatermain.i. Checkdepthofwatermainbelowtheprofilegrade.ii.

Note

locations,

sizes,

and

types

of

gate

valves,

fittings,

hydrants,

curb

stops,

boxes,connections,andPVC.

iii. Makesurethereisenoughpipelengthtoconnectpipetohydrants,valves,orservices.

iv. Notewhereinsulationboardisneededandmarkinyourplansifnotmarked.v. Doessanitarysewercrossthewatermain?Ifitdoesisthereenoughclearanceor

offsetbetweenthetwopipesforadequatesafety?(minimum18inchesvertical

clearance)

vi. Makesureeachpayitemisonsheetandthatitmatchesthedrainagesummarysheet.

1. Foreachtypeofvalve2. Eachsizeofpipe,hydrant,fittings,serviceconnection,orbox.3. Thecorrectquantityiscalledoutforeachitem(LF,EA,LBS)

i. StandardDetailsi. Reviewallstandarddetailsrequiredwithundergroundimprovements.

1. Erosioncontrol,concretepipesizesandthicknesses,inletsizesandtypes,manholesizesandtypes,andreinforcementdetailsaround

inletsormanholes.


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B. StandardSpecifications.a. ReviewSection700oftheStandardSpecificationstorefreshknowledgeof

requirementsforthework.

i. Section708coverstheDescription,Materials,ConstructionRequirements,MethodofMeasurement,andBasisofPaymentforErosionControlMeasures.

ii. Section709coversDescription,Materials,ConstructionRequirements,MethodofMeasurement,andBasisofPaymentforGeotextileFabrics.

iii. Section714coversDescription,Materials,ConstructionRequirements,MethodofMeasurement,andBasisofPaymentforCulverts,StormDrains,EdgeDrains,

andUnderdrains.

iv. Section722coversDescription,Materials,ConstructionRequirements,MethodofMeasurement,andBasisofPaymentforManholes,CatchBasins,andInlets.

v. Section724coversDescription,Materials,ConstructionRequirements,MethodofMeasurement,andBasisofPaymentforWaterMains,WaterLines,andSewer

Lines.

vi. Section744coversDescription,Materials,ConstructionRequirements,Methodof

Measurement,

and

Basis

of

Payment

for

Insulation

Board.

vii. ReviewallspecificationsreferencedwithinSection700. Oftenanotherspecificationwillbereferencedwithinaspecificationtosaveduplication. The

referencespecificationbecomespartofthespecificationreferencingit.

Materialsspecificationspertainingtotheworkwillbereferenced.

C. Proposal.a. LookatSupplementalSpecificationstobeawareifanyspecificationupdatesfrom

theStandardSpecificationshavebeenmade. SupplementalSpecificationswill

governovertheStandardSpecifications.

b. ExaminetheproposaltofindSpecialProvisionsregardingundergroundimprovements.

Special

Provisions

are

specific

to

the

project

and

cover

items

and

conditionsthatarenotincludedintheStandardSpecifications. SpecialProvisions

governoverPlans,SupplementalSpecificationsandStandardSpecifications.

D. ConstructionManual.a. ConsulttheSection400oftheConstructionManualtoreviewtheresponsibilitiesof

theinspectorfortheworkbeingperformed.

E. Checkthequantitiesofthebiditemsinvolvedinthework. Plansaregenerallyaccuratebuterrorsdohappenanditismuchbettertofindthemearlytoavoidproblems.

a. Organizecalculationstoidentifywherematerialsareplaced.b. Manholesc. Inletsd. Pipelengthse. Riserlengthsf. Pipebeddingmaterialsg. Insulationboardh. Fittings,valves,boxes,orservices.

F. Prepareanynecessaryfieldbookstodocumentthework.


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a. Include:i. Locationii. Dateinstallediii. Datestampediv. Payitemv. Quantityvi. Datepaidvii. Calculations(ifneeded)

b. Eachmainpayitemshouldhaveafieldbooki. Canincludeincidentalitemssuchasfittings,endsections,pipebeddingforeach

locationundermainpayitem.

c. Askforprioryearsfieldbooksandaskforpastinspectorsinputonwhattoimprovetomakefieldbookmorecomplete.

G. Organizethedocumentationrequiredformaterialsacceptance.a. Determinewhatmaterialsareacceptedbycertificationandwhichneedsamplingor

testing.

b. Preparealistofmaterialsthatareacceptedbycertificationandatestingandsamplingfrequencyformaterialsthatrequirethem.

2. Priortothestartofinstallationofundergroundimprovements.A. Jobsite

a. Checkstockpiles.i. Identifytypeofmaterialandlocationofmaterialsneededforimprovements.ii. Checkpipes,connections,endsections,etc.forcracksordeformities.iii. Inspectmanholesandrisersandseeiftheymatchtheshopdrawings.Ifdifferent

makesuretheyareadequatetomatchplanheightsfortheroadway.

iv.Check

that

stockpiles

to

make

sure

the

correct

pipe

sizes

and

lengths

are

there.

v. Isthecorrectbeddingmaterialonlocation?Doyouneedtotakeasampleofthematerialusedforthebase?

B. Suppliera. Doyouneedmaterialssamplesfromthesupplier?b. Doyouhavetherequiredspecsheetsfromthesupplierformaterialsusedinthe

undergroundimprovements?

c. Hasthebeddingmaterialpassedyourpriorgradationtests?C. Havesurveyorinstallallhubsneededforundergroundimprovements.

a. Gettogetherwithcontractorandsurveyortofindoutwhatwaytohavesurveyorstake

the

required

improvements

so

the

contractor

can

construct

improvements

correctlyandaccurately.

b. Checkelevationsandlocationsofhubstomakesuretheymatchtheplans.c. Makesurecontractorandyourselfcandoublecheckatleastonehubafterinstalling

materials.(Theycanconstructwithoutdestroyingallstakedhubs)

3. UndergroundConstructionA. StormSewer


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a. Learnstandarddetails,notes,andplandetailsheets!b. Excavation

i. Correctlocationii. Arelimitsofexcavationcorrectandadequateforinstallation?iii. Arethereanyutilitiesinthewayorcouldbeexposedwithexcavationforthe

pipe? Ensurecontractoraskedforlocates.

c. Reinforcementfabric(ifrequired)i. Installfabriccorrectly.ii. Makesureadequatedimensionsareused.iii. Makesurefabricispinnedtautwiththecorrectoverlap.

d. AggregateBasei. Installbasecourseincorrectliftsizes.ii. Isthereadequatemoistureinthebasecoursetoachievecompaction?iii. Compacteachliftcorrectlyandadequately.iv. Gradethebasecoursecorrectlyafterinstallationandcompaction.

e. Pipeinstallationi. Installpipeatcorrectflowlineelevation.ii. Iscamberofthepiperequired?(Ifitis,usecorrectamount)iii. Installgasketandorlubeifrequired.iv. Tiepipestogetherifrequired.

1. Makesurecorrecttiebarsizesareused.v. Makesurepipesfittogethertightoninsideandoutside.vi. Ensurepipeissetstraightinlinewithfinalhublocation.vii. Ensurenodamagetopipeoccursduringinstallation.(replaceifnecessary)

f. InletsorManholesi. Ensureproperbaseismadewithrequiredbasecoursebeforeplacingbaseof

manholeorinlet.

ii. Insuremanholeorinletgetsinstalledatproperlocation,elevation,androtation.iii.

Insure

concrete

flow

lines

are

installed.

iv. Insureoutsideandinsideofmanholeorinletiscompletelygroutedaroundconcretepipes.

v. Wrapmanholeorinletwithplasticifrequired.vi. Backfillaroundmanholeorinletwithpropermaterialsandcompaction

equipment.

g. PipeBackfilli. Makesurecorrectmaterialisusedforbackfill.ii. Ensureproperliftsizesareusedforentireprocessofbackfillingthepipe.iii. Makesurepropercompactionequipmentisusedandthatthehunchesofthe

pipereceivepropercompaction.

iv. Ensurecontractorbackfillspipetothefinalrequirementsofthepipebackfilldetailed

drawing.

B. SanitarySewera. Learnstandarddetails,notesandplandetailsheets!b. Excavation

i. Correctlocationii. Arelimitsofexcavationcorrectandadequateforinstallation?iii. Arethereanyutilitiesinthewaythatcouldbeexposedwithexcavationofthe



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c. Reinforcementfabric(ifrequired)i. Installfabriccorrectly.ii. Makesureadequatedimensionsareused.iii. Makesurefabricispinnedtautwiththecorrectoverlap.

d. AggregateBasei. Installbasecourseincorrectliftsizes.ii. Isthereadequatemoistureinthebasecoursetoachievecompaction?iii. Compacteachliftcorrectlyandadequately.iv. Gradethebasecoursecorrectlyafterinstallationandcompaction.

e. Pipeinstallationi. Installpipeatcorrectflowlineelevation.ii. Installgasketandorlubeifrequired.iii. Ensurepipegetspushedallthewayhome.iv. Makesurepipesfittogethertightly.v. Ensurepipeissetstraightinlinewithfinalhublocation.vi. Ensurenodamagetopipeoccursduringinstallation.(replaceifnecessary)

f. SanitaryManholesi. Installbaseformanholewithproperaggregatebase.ii. Insuremanholeisplacecorrectlytotieinsanitarysewerpipe.(rotationand

elevation)

iii. Makesurepipesinthemanholeshaveflowinthecorrectdirection.iv. Insurecontractorinstallsaflowlineinthemanholetoconnectthepipes

together. Somemanholeshaveprecastflowlines.

v. Installanyrisersectionsandmakesuretheyaresealedtogetherproperlyandthestepsintothemanholelineup(correctrotation).

vi. Insurelidisinstalledinthecorrectplace(rotation).vii. InsurepropersealantisusedinbetweentheMHandlid.viii. Groutpipesintomanholetosealtheoutsideofmanhole.ix.

Insure

manhole

gets

wrapped

with

plastic

if

required.

x. Backfillaroundsanitarymanholeswithpropermaterialsandequipment.g. PipeBackfill

i. Makesurecorrectmaterialisusedforbackfill.ii. Ensureproperliftsizesareusedforentireprocessofbackfillingthepipe.iii. Makesurepropercompactionequipmentisusedandthatthehunchesofthe

pipereceivepropercompaction.

iv. Ensurecontractorbackfillspipetothefinalrequirementsofthepipebackfilldetaileddrawing.

C. WaterMaina. Learnstandarddetails,notes,andplandetailsheets!b. Excavation

i. Correctlocationii. Arelimitsofexcavationcorrectandadequateforinstallation?iii. Arethereanyutilitiesinthewaythatcouldbeexposedwithexcavationofthe


c. Reinforcementfabric(ifrequired)i. Installfabriccorrectly.ii. Makesureadequatedimensionsareused.


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iii. Makesurefabricispinnedtautwiththecorrectoverlap.d. AggregateBase

i. Installbasecourseincorrectliftsizes.ii. Isthereadequatemoistureinthebasecoursetoachievecompaction?iii. Compacteachliftcorrectlyandadequately.iv. Gradethebasecoursecorrectlyafterinstallationandcompaction.

e. Pipeinstallationi. Doanyservicesneedtobeturnedofftoconstruct?ii. Insurethecontractorgivesadequatenoticebeforeshuttingoffwatertoanyone.iii. Installpipeatcorrectflowlineelevation.iv. Installgasketandorlubeifrequired.v. Ensurepipegetspushedallthewayhome.vi. Makesurepipesfittogethertightly.vii. Ensureallductileironfittingsaretightenedtopropertorque.viii. Ensurepipeissetstraightinlinewithfinalhublocation.ix. Ensurenodamagetopipeoccursduringinstallation.(replaceifnecessary)x. Installinsulationboardifwatermainiswithintheminimumdepthfromthe

finishedgrade

or

the

storm

sewer.

f. Hydrants,gatevalves,curb&corporationstopsi. Insurethathydrantsareinstalledatthecorrectmaxspacing.ii. Doublechecklocationbeforesettingthrustblocks.iii. Checkelevationoftrenchinrespecttohydranttopnutelevationorfinalgrade

lineelevationtoinsureadequateheightofvalves,stops,andhydrants.

iv. Insureallfittingsareinstalledproperly.v. Adjustelevationsofpipetoensureeachfinaltopelevationiscorrectwith

respecttothefinalgradeoftheroad,sidewalk,orground.

g. Testinganddisinfectinglinesi. Getallrequirementsfromtheplannotesorstandardspecs.ii.

After

partial

or

complete

backfill,

each

section

of

new

pipe

or

valves

shall

be

pressuretested.

iii. Therequirementsofthetestshouldbeinthenotesandthecontractorneedstocomplywithallrequirementsofthejob.

iv. Afterthefinalpressuretest,thecontractorshalldisinfectalllinescomplyingwithallrequirementsforthejob.

v. Afterflushingthelinesfromthedisinfectionmaterials,abacteriologicaltestshallbecompletedtoensurethewaterisadequate.

h. PipeBackfilli. Makesurecorrectmaterialisusedforbackfill.ii. Ensureproperliftsizesareusedforentireprocessofbackfillingthepipe.iii. Makesurepropercompactionequipmentisusedandthatthehunchesofthe

pipereceive

proper

compaction.

iv. Ensurecontractorbackfillspipetothefinalrequirementsofthepipebackfilldetaileddrawing.

4. PostconstructionA. Filloutdailydiary

a. Equipmentusedfortheworkb. Laborforcetocompletetheworkc. Whatcontractorcompletedduringtheday


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i. Includealllocationsofwhereworkwascompleted.ii. Includepayitemsinstalled,withtheirrespectivequantities.iii. Noteanyproblemsordelaysthathappenedduringday.iv. Noteanychangestoplansthatwererequiredduringconstruction.

B. Filloutfieldbooksa. Fillouteachfieldbookwithdatestoshowwhatpayitemswerecompletedforthe

day.

b. Noteanyspecsrequiredperpayitem.(datestamped,grade,ASTM#,etc.)C. Filloutpayquantityreport

a. Includelocation,payitem,quantity,andcalculationsifneeded.b. Notewhatfieldbookisneededtofindtheinformationonthepayitem.

Documents

Urban Underground Improvement Checklist