Amendment 8_Spec Section 33 46 16.pdf

DELAFI ELD DAM DECOMMI SSI ONI NG 2021 DELAFI ELD_J2

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SUBDRAI NAGE PI PI NG

05/ 18

PART 1 GENERAL

1. 1 REFERENCES

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o wi t hi n t he t ext by t he basi c desi gnat i on onl y.

AMERI CAN ASSOCI ATI ON OF STATE HI GHWAY AND TRANSPORTATI ON OFFI CI ALS

( AASHTO)

AASHTO M 252 ( 2009; R 2017) St andar d Speci f i cat i on f or Cor r ugat ed Pol yet hyl ene Dr ai nage Pi pe

ASTM I NTERNATI ONAL ( ASTM)

ASTM A27/ A27M ( 2020) St andar d Speci f i cat i on f or St eel Cast i ngs, Car bon, f or Gener al Appl i cat i on

ASTM A47/ A47M ( 1999; R 2022; E 2022) St andar d Speci f i cat i on f or Fer r i t i c Mal l eabl e I r on Cast i ngs

ASTM A48/ A48M ( 2003; R 2021) St andar d Speci f i cat i on f or Gr ay I r on Cast i ngs

ASTM A123/ A123M ( 2017) St andar d Speci f i cat i on f or Zi nc ( Hot - Di p Gal vani zed) Coat i ngs on I r on and St eel Pr oduct s

ASTM C478 ( 2018) St andar d Speci f i cat i on f or Ci r cul ar Pr ecast Rei nf or ced Concr et e Manhol e Sect i ons

ASTM D2321 ( 2020) St andar d Pr act i ce f or Under gr ound I nst al l at i on of Ther mopl ast i c Pi pe f or Sewer s and Ot her Gr avi t y- Fl ow Appl i cat i ons

ASTM D3034 ( 2016) St andar d Speci f i cat i on f or Type PSM Pol y( Vi nyl Chl or i de) ( PVC) Sewer Pi pe and Fi t t i ngs

ASTM D3753 ( 2019) Gl ass- Fi ber - Rei nf or ced Pol yest er Manhol es and Wet wel l s

ASTM F758 ( 2014) Smoot h- Wal l Pol y( Vi nyl Chl or i de) ( PVC) Pl ast i c Under dr ai n Syst ems f or Hi ghway, Ai r por t , and Si mi l ar Dr ai nage

ASTM F949 ( 2020) St andar d Speci f i cat i on f or Pol y( Vi nyl Chl or i de) ( PVC) Cor r ugat ed Sewer Pi pe wi t h a Smoot h I nt er i or and Fi t t i ngs

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1. 2 SUBMI TTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" or " S" c l assi f i cat i on. Submi t t al s not havi ng a " G" or " S" c l assi f i cat i on ar e f or i nf or mat i on onl y. When used, a code f ol l owi ng t he " G" c l assi f i cat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment .

Submi t t he f ol l owi ng i n accor dance wi t h Sect i on 01 33 00 SUBMI TTAL

PROCEDURES:

SD- 04 Sampl es

Geot ext i l e

Pi pe and Pi pe Fi t t i ngs

SD- 07 Cer t i f i cat es

Geot ext i l e

Pi pe and Pi pe Fi t t i ngs

1. 3 DELI VERY, STORAGE, AND HANDLI NG

1. 3. 1 Del i ver y and St or age

I nspect mat er i al s del i ver ed t o s i t e f or damage; unl oad, and st or e wi t h mi ni mum handl i ng. Do not st or e mat er i al s di r ect l y on t he gr ound. Keep t he i nsi de of pi pes and f i t t i ngs f r ee of di r t and debr i s. Keep, dur i ng shi pment and st or age, geot ext i l e wr apped i n bur l ap or s i mi l ar heavy dut y pr ot ect i ve cover i ng. Pr ot ect t he geot ext i l e f r om mud, soi l , dust , and debr i s. Do not st or e geot ext i l e mat er i al s i n di r ect sunl i ght . I nst al l pl ast i c pi pe wi t hi n 6 mont hs f r om t he dat e of manuf act ur e unl ess ot her wi se appr oved.

1. 3. 2 Handl i ng

Handl e mat er i al s i n such a manner as t o ensur e del i ver y t o t he t r ench i n sound undamaged condi t i on. Car r y pi pe t o t he t r ench.

PART 2 PRODUCTS

2. 1 PI PE FOR SUBDRAI NS

Submi t sampl es of pi pe and pi pe f i t t i ngs, bef or e st ar t i ng t he wor k.

Pr ovi de t ype and si zes of subdr ai n pi pe i ndi cat ed. Submi t cer t i f i cat i ons f r om t he manuf act ur er s at t est i ng t hat mat er i al s meet speci f i cat i on r equi r ement s. Cer t i f i cat es ar e r equi r ed f or dr ai n pi pe and f i t t i ngs.

2. 1. 1 Pl ast i c

Pr ovi de pl ast i c pi pe cont ai ni ng ul t r avi ol et i nhi bi t or t o pr ovi de pr ot ect i on f r om exposur e t o di r ect sunl i ght . Pr ovi de pi pe wi t h wi t h bel l and spi got or sol vent cement j oi nt s. Pr ovi de manuf act ur er ' s st andar d t ype f i t t i ngs conf or mi ng t o t he i ndi cat ed speci f i cat i on.

2. 1. 1. 1 Pol yvi nyl Chl or i de ( PVC) and Fi t t i ngs

ASTM D3034, ASTM F949 or ASTM F758, Type PS 46.

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2. 1. 1. 2 Cor r ugat ed Pol yet hyl ene ( PE) and Fi t t i ngs

AASHTO M 252, Type S or SP as i ndi cat ed.

2. 1. 1. 3 Pi pe Per f or at i ons

Pr ovi de pi pe per f or at i ons wi t h a mi ni mum wat er i nl et ar ea of 0. 5 squar e i nch per l i near f oot and as speci f i ed bel ow.

2. 1. 1. 3. 1 Ci r cul ar Per f or at i ons i n Pl ast i c Pi pe

Cl eanl y cut c i r cul ar hol es not mor e t han 3/ 8 i nch or l ess t han 3/ 16 i nch i n di amet er and ar r ange i n r ows par al l el t o t he l ongi t udi nal axi s of t he pi pe. Pr ovi de pi pe wi t h per f or at i ons spaced uni f or ml y al ong r ows. Unl ess ot her wi se r ecommended by t he pi pe manuf act ur er , pr ovi de pi pe wi t h r ows appr oxi mat el y 1- 1/ 2 i nches apar t and ar r anged i n a st agger ed pat t er n so t hat al l per f or at i ons l i e at t he mi dpoi nt bet ween per f or at i ons i n adj acent r ows. Space t he r ows over not mor e t han 155 degr ees of c i r cumf er ence.

Pr ovi de pi pe t hat i s not per f or at ed f or a l engt h equal t o t he dept h of t he socket at t he spi got or t ongue end and pr ovi de per f or at i ons t hat cont i nue at uni f or m spaci ng over t he ent i r e l engt h of t he pi pe.

2. 1. 1. 3. 2 Sl ot t ed Per f or at i ons i n Pl ast i c Pi pe

Cl eanl y cut c i r cumf er ent i al s l ot s so as not t o r est r i ct t he i nf l ow of wat er and uni f or ml y spaced al ong t he l engt h and ci r cumf er ence of t he pi pe. Pr ovi de pi pe wi t h s l ot s not exceedi ng 1/ 8 i nch nor l ess t han 1/ 32 i nch i n wi dt h. Pr ovi de pi pe wi t h i ndi v i dual s l ot l engt hs not exceedi ng 10 per cent of t he pi pe i nsi de nomi nal c i r cumf er ence on 6 t o 8 i nch di amet er pi pe, and 2- 1/ 2 i nches on 10 i nch di amet er pi pe. Symmet r i cal l y space r ows of s l ot s so t hat t hey ar e f ul l y cont ai ned i n 2 quadr ant s of t he pi pe.

Cent er s l ot s i n t he val l eys of t he cor r ugat i ons of pr of i l e wal l pi pe.

2. 2 GEOTEXTI LE

Pr ovi de geot ext i l e meet i ng t he r equi r ement s i n Sect i on 31 05 19. 13

GEOTEXTI LE.

Submi t sampl es of geot ext i l e and cer t i f i cat i ons f r om t he manuf act ur er s at t est i ng t hat geot ext i l e meet s speci f i cat i on r equi r ement s.

2. 3 DRAI NAGE LAYER MATERI AL

Pr ovi de dr ai nage l ayer mat er i al meet i ng t he r equi r ement s i n Sect i on

31 23 00. 00 20 EXCAVATI ON AND FI LL.

2. 4 DRAI NAGE STRUCTURES

2. 4. 1 Concr et e

Pr ovi de concr et e and r ei nf or ced concr et e conf or mi ng t o t he r equi r ement s f or 4, 500 psi concr et e i n Sect i on 03 30 53 MI SCELLANEOUS CAST- I N- PLACE

CONCRETE.

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2. 4. 2 Mor t ar

Pr ovi de mor t ar f or connect i ons t o dr ai nage st r uct ur es t hat i s composed of one par t by vol ume of por t l and cement and t wo par t s of sand. Pr ovi de suf f i c i ent quant i t y of wat er i n t he mi xt ur e t o pr oduce a st i f f wor kabl e mor t ar . Use wat er t hat i s c l ean and f r ee of i nj ur i ous aci ds, al kal i es, and or gani c i mpur i t i es. Use t he mor t ar wi t hi n 30 mi nut es f r om t he t i me t he i ngr edi ent s ar e mi xed wi t h wat er .

2. 4. 3 Manhol es and Appur t enances

2. 4. 3. 1 Pr ecast Rei nf or ced Concr et e Manhol e Ri ser s and Tops

ASTM C478.

2. 4. 3. 2 Pr ecast Concr et e Manhol e Bases

ASTM C478. Pr ovi de bases t hat al l ow sui t abl e connect i on wi t h i nf l uent and ef f l uent l i nes and t o pr ovi de a sui t abl e base st r uct ur e f or r i ser sect i ons.

2. 4. 3. 3 Gl ass Fi ber - Rei nf or ced Pol yest er ( FRP)

ASTM D3753.

2. 4. 3. 4 Fr ames and Cover s or Gr at i ngs

Except as ot her wi se per mi t t ed, pr ovi de f r ames and gr at i ngs, or f r ames and cover s of ei t her cast i r on wi t h t ensi l e st r engt h t est not l ess t han ASTM A48/ A48M Cl ass 25 or st eel conf or mi ng t o ASTM A27/ A27M, Cl ass 65- 35.

Requi r ed wei ght , shape, and si ze ar e i ndi cat ed on t he dr awi ngs. Fr ames and cover s not subj ect ed t o vehi cul ar t r af f i c or st or age may be of mal l eabl e i r on wher e i ndi cat ed. Pr ovi de mal l eabl e- i r on f r ames and cover s conf or mi ng t o ASTM A47/ A47M and of t he wei ght , shape, and si ze i ndi cat ed.

2. 4. 3. 5 St eel Ladder

Pr ovi de a st eel l adder wher e t he dept h of a manhol e exceeds 12 f eet . The l adder wi l l be not l ess t han 16 i nches i n wi dt h, wi t h 3/ 4 i nch di amet er r ungs spaced 12 i nches apar t . Pr ovi de t wo st r i nger s t hat ar e a mi ni mum 3/ 8 i nch t hi ck and 2 i nches wi de. Adequat el y anchor l adder t o t he wal l by means of st eel i nser t s spaced not mor e t han 6 f eet apar t ver t i cal l y, and i nst al l so as t o pr ovi de at l east 6 i nches of space bet ween t he wal l and t he r ungs. Gal vani ze l adder s and i nser t s af t er f abr i cat i on i n conf or mance wi t h ASTM A123/ A123M.

PART 3 EXECUTI ON

3. 1 EXCAVATI ON AND BEDDI NG FOR SUBDRAI N SYSTEMS

Excavat e t r enches, i ncl udi ng t he r emoval of r ock and unst abl e mat er i al , i n accor dance wi t h Sect i on 31 23 00. 00 20 EXCAVATI ON AND FI LL. Pl ace beddi ng mat er i al i n t he t r ench as i ndi cat ed or as r equi r ed as r epl acement mat er i al s used i n t hose ar eas wher e unst abl e mat er i al s wer e r emoved.

Compact beddi ng mat er i al as speci f i ed f or cohesi onl ess mat er i al i n Sect i on

31 05 19. 13 GEOTEXTI LES FOR EARTHWORK.

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3. 2 MANHOLES AND FLUSHI NG AND OBSERVATI ON RI SERS

3. 2. 1 Manhol es

I nst al l manhol es compl et e wi t h f r ames and cover s or gr at i ngs at t he l ocat i ons and wi t hi n t he l i mi t s and si zes i ndi cat ed. Const r uct manhol es of one of t he mat er i al s speci f i ed f or manhol es i n par agr aph DRAI NAGE STRUCTURES. Compl et el y f i l l pr ecast concr et e manhol e j oi nt s so t hat t hey ar e smoot h and f r ee of sur pl us mor t ar or mast i c on t he i nsi de of t he st r uct ur e. Use ei t her pr ecast or cast - i n- pl ace concr et e manhol e bases.

3. 2. 2 Fl ushi ng and Obser vat i on Ri ser s

I nst al l f l ushi ng and obser vat i on r i ser pi pes wi t h f r ames and cover s at t he l ocat i ons i ndi cat ed. Const r uct r i ser s of non- per f or at ed pl ast i c or pi pe.

Joi n r i ser pi pes t o t he subdr ai n syst em as i ndi cat ed.

3. 3 I NSTALLATI ON OF GEOTEXTI LE AND PI PE FOR SUBDRAI NS

3. 3. 1 I nst al l at i on of Geot ext i l e

3. 3. 1. 1 Tr ench Li ni ng and Over l aps

Gr ade t r enches t o be l i ned wi t h geot ext i l e t o obt ai n smoot h s i de and bot t om sur f aces so t hat t he geot ext i l e wi l l not br i dge cavi t i es i n t he soi l or be damaged by pr oj ect i ng r ock. Lay t he geot ext i l e f l at but not st r et ched on t he soi l , and secur e i t wi t h anchor pi ns i n accor dance wi t h manuf act ur er ' s i nst r uct i ons. Over l ap at l east 6 t o 12 i nches, and secur e wi t h anchor pi ns al ong t he over l aps.

3. 3. 2 I nst al l at i on of Pi pe f or Subdr ai ns

3. 3. 2. 1 Pi pel ayi ng

I nst al l pi pe i n accor dance wi t h t he manuf act ur er ' s r ecommendat i ons.

Thor oughl y exami ne each sect i on of pi pe bef or e bei ng l ai d; do not use def ect i ve or damaged pi pe. Do not l ay pi pe when t he t r ench condi t i ons or weat her i s unsui t abl e f or such wor k. Remove wat er f r om t r enches by sump pumpi ng or ot her appr oved met hods. Lay t he pi pe t o t he gr ades and al i gnment as i ndi cat ed. Bed t he pi pe t o t he est abl i shed gr adel i ne.

Cent er per f or at i ons on t he bot t om of t he pi pe. Lay bel l - and- spi got t ype wi t h t he bel l ends upst r eam. Appr oval of al l i n- pl ace pi pes by t he Cont r act i ng Of f i cer i s r equi r ed pr i or t o backf i l l i ng.

3. 4 I NSTALLATI ON OF DRAI NAGE LAYER MATERI AL AND BACKFI LLI NG FOR PERFORATED

SUBDRAI NS

Af t er per f or at ed pi pe f or subdr ai ns has been l ai d, i nspect ed, and appr oved, pl ace dr ai nage l ayer mat er i al ar ound and over t he pi pe t o t he dept h i ndi cat ed. Pl ace t he dr ai nage l ayer mat er i al i n l ayer s not t o exceed 8 i nches t hi ck. Sat ur at e by f l oodi ng. Thor oughl y compact each l ayer usi ng mechani cal t amper s or r ammer s.

3. 5 I NSTALLATI ON OF BEDDI NG AND BACKFI LL FOR NON- PERFORATED SUBRAI N

OUTFALL PI PE

3. 5. 1 Pl ast i c Pi pe

Pl ace and compact pi pe embedment f or pl ast i c pi pe i n accor dance wi t h

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ASTM D2321. Use Cl ass I B or I I embedment mat er i al s.

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