35 20 23_Amend 2.pdf

PL 84- 99 FI MI - Ocean Bay Par k t o Davi s Par k PL8499FI MI Amendment 02

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DREDGI NG

08/ 20

PART 1 GENERAL

1. 1 GENERAL I NFORMATI ON

Thi s Sect i on cover s f ur ni shi ng sui t abl e dr edgi ng pl ant and per f or mi ng al l wor k r equi r ed t o r emove t he speci f i ed mat er i al s f r om wi t hi n t he pr escr i bed wor k ar ea l i mi t s as i ndi cat ed, and pl acement of t he dr edge mat er i al wi t hi n t he pr escr i bed mat er i al pl acement ar eas. The Cont r act or i s r esponsi bl e f or maki ng t hei r own i nvest i gat i on of submer ged, sur f ace, and over head st r uct ur es i n t he wor k ar eas and ot her l ocat i ons t hey f i nd necessar y t o t r aver se. The exact l ocat i on, dept hs, and hei ght s of var i ous st r uct ur es i ncl udi ng, but not l i mi t ed t o submar i ne cabl es, pi pes, hi ghl i nes, docks, pi er s, bul kheads, and br i dges ( as appl i cabl e) , ar e not known and i t wi l l be necessar y f or t he Cont r act or t o ascer t ai n i nt er f er ence pr obl ems and not i f y t he r espect i ve owner s i n advance of dr edgi ng oper at i ons. The Cont r act or i s r esponsi bl e f or maki ng necessar y ar r angement s wi t h t he r espect i ve owner s of t he st r uct ur e( s) t o assur e sat i sf act or y compl et i on of dr edgi ng i n t he v i c i ni t y wi t h a mi ni mum i nt er r upt i on of ser vi ce, and must per f or m t hei r oper at i ons i n such a manner as wi l l avoi d damage t o t hese f aci l i t i es.

1. 2 DEFI NI TI ONS

1. 2. 1 Mai nt enance Mat er i al

Mai nt enance mat er i al i s def i ned as t hat compr i s i ng shoal i ng whi ch has occur r ed si nce t he channel ar eas wer e l ast dr edged.

1. 2. 1 New Wor k Mat er i al

New wor k mat er i al i s def i ned as pr evi ousl y undr edged mat er i al .

1. 2. 2 Har d Mat er i al

Har d mat er i al i s def i ned as mat er i al r equi r i ng bl ast i ng or t he use of speci al equi pment f or economi cal r emoval , and i ncl udes boul der s or f r agment s t oo l ar ge t o be r emoved i n one pi ece by t he dr edge.

1. 3 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- 02 Shop Dr awi ngs

Submer ged Pi pel i nes

Soundi ngs or Sweepi ngs; G, RO

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I ndi cat e pi pel i ne l ocat i on and i nst al l at i on det ai l s. Submi t dr awi ngs of sur veys dur i ng pr ogr ess of wor k by soundi ngs or sweepi ngs.

1. 4 METHOD OF COMMUNI CATI ON

Pr ovi de a syst em of communi cat i on bet ween t he dr edge cr ew and t he cr ew at t he pl acement ar ea. A por t abl e t wo- way r adi o i s accept abl e.

1. 5 ENVI RONMENTAL COMPLI ANCE AND PROTECTI ON

Compl y wi t h condi t i ons and r equi r ement s of St at e or Feder al per mi t s. The Gover nment wi l l secur e t he per mi t f or dr edgi ng and pl acement of mat er i al as i ndi cat ed. Coor di nat e wi t h COR f or pl acement of excavat ed mat er i al s.

Dur i ng t he l i f e of t he cont r act , pr ovi de and mai nt ai n envi r onment al pr ot ect i ve measur es. Al so, envi r onment al pr ot ect i ve measur es r equi r ed t o cor r ect condi t i ons, such as oi l spi l l s or debr i s, t hat occur dur i ng t he dr edgi ng oper at i ons, must be pr ovi ded. Compl y wi t h Feder al , St at e, and l ocal r egul at i ons per t ai ni ng t o wat er , ai r , and noi se pol l ut i on.

1. 6 BASI S FOR BI DS

For uni t pr i ce bi d, see par agr aph ent i t l ed " Basi s of Bi ds, Measur ement , and Payment " i n Sect i on 01 20 00 PRI CE AND PAYMENT PROCEDURES.

I f t he Cont r act i ng Of f i cer r equi r es an i ncr ease or a decr ease i n t ot al vol ume of dr edgi ng, t he cont r act pr i ce wi l l be adj ust ed i n accor dance wi t h t he FAR 52. 211- 18 Var i at i on i n Est i mat ed Quant i t y. Dr edgi ng condi t i ons speci f i ed and i ndi cat ed descr i be condi t i ons whi ch ar e known at t he t i me of sur vey. However , t he Cont r act or i s r esponsi bl e f or ot her condi t i ons encount er ed whi ch ar e not unusual when compar ed t o condi t i ons r ecogni zed i n t he dr edgi ng busi ness as usual i n dr edgi ng act i v i t i es such as t hose r equi r ed under t hi s cont r act .

PART 2 PRODUCTS

Not Used

PART 3 EXECUTI ON

3. 1 I NSPECTI ON

I nspect t he wor k, keep r ecor ds of wor k per f or med, and ensur e t hat gages, t ar get s, r anges, and ot her mar ker s ar e i n pl ace and usabl e f or t he i nt ended pur pose. Pr ovi de, at t he r equest of t he Cont r act i ng Of f i cer , boat s, boat men, l abor er s, and mat er i al s necessar y f or i nspect i ng, super vi s i ng, and sur veyi ng t he wor k. When r equi r ed, pr ovi de t r anspor t at i on f or t he Cont r act i ng Of f i cer and i nspect or s t o and f r om t he pl acement ar ea and bet ween t he dr edgi ng pl ant and adj acent poi nt s on shor e.

The dr edge pl ant wi l l be i nspect ed by t he Cont r act i ng Of f i cer , or t hei r r epr esent at i ve, pr i or t o begi nni ng wor k t o ensur e t ot al dr edgi ng pl ant i s i n saf e wor ki ng condi t i on. Bef or e any machi ner y or mechani zed equi pment i s pl aced i n ser vi ce, i t must be i nspect ed and t est ed by t he Cont r act or and cer t i f i ed t o be i n saf e oper at i ng condi t i on.

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3. 2 DREDGI NG

3. 2. 1 Or der of Wor k

See Sect i on 01 14 00 Wor k Rest r i ct i on. The Gover nment r eser ves t he r i ght t o change t he or der of wor k at any t i me.

3. 2. 2 I nt er f er ence wi t h Navi gat i on

Mi ni mi ze i nt er f er ence wi t h t he use of channel s and passages. The Cont r act or i s r esponsi bl e f or shi f t i ng or movi ng of dr edges or t he i nt er r upt i on of dr edgi ng oper at i ons t o accommodat e t he movement of vessel s and f l oat i ng equi pment , i f necessar y. Adher e t o Coast Guar d Regul at i ons f or passi ng vessel s.

3. 2. 3 Li ght s

Each ni ght , bet ween sunset and sunr i se and dur i ng per i ods of r est r i ct ed vi s i bi l i t y , pr ovi de l i ght s f or f l oat i ng pl ant s, pi pel i nes, r anges, and mar ker s. Al so, pr ovi de l i ght s f or buoys t hat coul d endanger or obst r uct navi gat i on. When ni ght wor k i s i n pr ogr ess, mai nt ai n l i ght s f r om sunset t o sunr i se f or t he obser vat i on of dr edgi ng oper at i ons. Li ght i ng must conf or m t o Uni t ed St at es Coast Guar d r equi r ement s f or v i s i bi l i t y and col or .

3. 2. 4 Navi gat i on War ni ngs

Fur ni sh and mai nt ai n navi gat i on war ni ng si gns al ong t he pi pel i ne. Pr ovi de not i ce t o i ncr ease publ i c awar eness of pot ent i al hazar ds pr esent ed by dr edge pl ant equi pment by st at i ng t he l ocat i on, dat e of const r uct i on, equi pment moor i ng, mar shal i ng ar eas, usi ng l ocal newspaper s, r adi os, t el evi s i on, wat er way user s associ at i ons, or ot her appr opr i at e ar ea speci f i c communi cat i on net wor ks. Ensur e t hat an announcement i s made t hr ough t he same net wor ks at t he begi nni ng of t he dr edgi ng oper at i on.

Make per i odi c updat es/ st at us announcement s at i nt er val s of not mor e t han a mont h t hr oughout t he cont r act l i f e.

Di spl ay a st ur dy and pr omi nent war ni ng si gn at al l publ i c boat mar i nas wi t hi n 10 mi l es of dr edgi ng oper at i ons or moor ed equi pment . The Cont r act or i s r esponsi bl e f or keepi ng t hi s s i gn cur r ent wi t h r espect t o t he dr edgi ng oper at i ons or equi pment .

3. 2. 5 Ranges, Gages, and Li nes

Pr ovi de, set , and mai nt ai n r anges, buoys, and mar ker s needed t o def i ne t he wor k and t o f aci l i t at e i nspect i on. Est abl i sh and mai nt ai n gages i n l ocat i ons obser vabl e f r om each par t of t he wor k so t hat t he dept h may be det er mi ned. Suspend dr edgi ng when t he gages or r anges cannot be seen or f ol l owed. The Cont r act i ng Of f i cer wi l l f ur ni sh, upon r equest by t he Cont r act or , sur vey l i nes, poi nt s, and el evat i ons necessar y f or t he set t i ng of r anges, gages, and buoys.

3. 2. 6 Dr edge Pl ant and Equi pment

a. Mai nt ai n al l dr edge pl ant and associ at ed equi pment such as, but not l i mi t ed t o, scows, coami ngs, bar ges, and pi pel i nes, t o meet t he r equi r ement s of t he wor k. Pr ompt l y r epai r l eaks or br eaks al ong pi pel i nes.

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3. 2. 6. 1 Si de Sl opes

Si de sl opes i n t he dr edgebor r ow ar eas wi t hi n t hi s cont r act wi l l be measur ed and pai d based on a f i ve f eet hor i zont al t o one f eet ver t i cal r at i o. Dr edgi ng on si de sl opes must f ol l ow, as c l osel y as pr act i cabl e, t he dr edgebor r ow ar ea l i mi t s i ndi cat ed on associ at ed l ayout dr awi ngs.

No al l owance wi l l be made f or dr edgi ng beyond t he dr edgebor r ow ar ea l i mi t s as i ndi cat ed on t he associ at ed l ayout dr awi ngs. No dr edgi ng can occur out si de of t he dr edgebor r ow ar ea and si de sl ope l i mi t s.

3. 2. 7 Obst r uct i ons and Debr i s

The Gover nment has no knowl edge of cabl es, pi pes, or ot her ar t i f i c i al obst r uct i ons or of any wr ecks, wr eckage, or ot her mat er i al t hat woul d necessi t at e t he use of expl osi ves or t he empl oyment of addi t i onal equi pment f or economi cal r emoval . Cont r act or s shoul d however exer ci se due di l i gence i n det er mi ni ng t he exi st ence of any obst r uct i ons wi t hi n pr oposed wor k ar eas dur i ng bi d pr epar at i on.

The Gover nment has no knowl edge of exi st i ng wr ecks, wr eckage, or ot her mat er i al of such si ze or char act er as t o r equi r e t he use of expl osi ves or speci al or addi t i onal pl ant f or i t s economi cal r emoval .

3. 2. 8 Qual i t y Cont r ol

Est abl i sh and mai nt ai n qual i t y cont r ol f or oper at i ons t o assur e compl i ance wi t h cont r act ual r equi r ement s and mai nt ai n r ecor ds of t hi s qual i t y cont r ol f or dr edgi ng oper at i ons.

Whi l e per f or mi ng al l dr edgi ng wor k cont r ol t he hor i zont al posi t i oni ng of t he dr edge wi t h el ect r oni c posi t i oni ng.

3. 2. 9 Sur veys dur i ng Pr ogr ess of Wor k

Qual i t y of dr edgi ng dept h wi l l be det er mi ned by soundi ngs or sweepi ngs t aken behi nd t he dr edge as wor k pr ogr esses. The Cont r act or wi l l t ake pr ogr ess soundi ngs or sweepi ngs. I ndi cat e pi pel i ne l ocat i on and i nst al l at i on det ai l s. Submi t dr awi ngs of sur veys dur i ng pr ogr ess of wor k by soundi ngs or sweepi ngs.

3. 2. 10 Ski mmi ng of Hopper s

Ski mmi ng of hopper s must be per f or med i n compl i ance wi t h envi r onment al r equi r ement s and ABS/ USCG l oad l i ne mar ks.

3. 2. 11 Sal vaged Mat er i al

Anchor s, chai ns, f i r ear ms, and ot her ar t i c l es of val ue, whi ch ar e br ought t o t he sur f ace dur i ng dr edgi ng oper at i ons, must r emai n or become t he pr oper t y of t he Gover nment and wi l l be pl aced on shor e at a conveni ent l ocat i on near t he s i t e of t he wor k, as di r ect ed.

3. 2. 12 Saf et y of St r uct ur es

The pr osecut i on of wor k must ensur e t he st abi l i t y of pi er s, bul kheads, and ot her st r uct ur es l y i ng on or adj acent t o t he s i t e of t he wor k, i nsof ar as st r uct ur es may be j eopar di zed by dr edgi ng oper at i ons. Repai r damage r esul t i ng f r om dr edgi ng oper at i ons i s t he r esponsi bi l i t y of t he

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Cont r act or , i nsof ar as such damage may be caused by var i at i on i n l ocat i ons or dept h of dr edgi ng, or bot h, f r om t hat i ndi cat ed or per mi t t ed under t he cont r act . The Cont r act or i s r esponsi bl e f or coor di nat i ng wi t h t he owner of t he st r uct ur e f or any necessar y r epai r s.

3. 3 PLACEMENT OPERATONS

3. 3. 1 Pl acement of Excavat ed Mat er i al s

Pr ovi de f or saf e t r anspor t at i on and pl acement of dr edged mat er i al s.

Tr anspor t and pl acement of dr edged mat er i al i n t he pl acement ar e as shown on t he cont r act dr awi ngs. The pl acement of dr edged mat er i al s i n unaut hor i zed pl aces i s f or bi dden. Compl y wi t h r ul es and r egul at i ons of al l , f eder al , st at e and l ocal aut hor i t i es.

3. 3. 2 Met hod of Pl acement

Pl ace al l dr edged mat er i al by t he hydr aul i c pr ocess. Coor di nat e compl et i on of l oad wi t h t he Gover nment . Pi pel i ne f or hydr aul i c dr edgi ng must di schar ge i nt o t he pl acement ar ea.

3. 3. 3 Mi spl aced Dr edged Mat er i al

Any dr edged mat er i al s deposi t ed at l ocat i ons ot her t han i n ar eas desi gnat ed or appr oved by t he Cont r act i ng Of f i cer wi l l be consi der ed mi spl aced mat er i al and wi l l not be pai d f or unt i l t he Cont r act or , at hi s own expense, r emoves and deposi t s such mi spl aced mat er i al wher e di r ect ed.

Thi s r equi r ed r emoval and r edeposi t of t he mi spl aced mat er i al and any necessar y pl acement s i t e r est or at i on wor k i s not t he basi s f or a t i me ext ensi on or addi t i onal compensat i on under t hi s cont r act .

3. 3. 4 Submer ged Pi pel i nes

I f a l eak occur s i n t he di schar ge pi pel i ne, i mmedi at el y di scont i nue usi ng t he l i ne unt i l l eaks ar e r epai r ed. Fol l owi ng a l eak, t he Cont r act or shoul d conduct , or r equest t he Gover nment t o conduct , a hydr osur vey t o ensur e t hat any dr edged mat er i al di schar ged t hr ough t he l eak di d not accumul at e or cause moundi ng. I f accumul at i on di d occur , t he Cont r act or must coor di nat e wi t h t he Gover nment t o r emove t he accumul at ed mat er i al , i f deemed necessar y. The Cont r act or i s r esponsi bl e f or any r esul t i ng cost s of r epai r and r est or at i on.

3. 4 MEASUREMENT

The Cont r act or i s r esponsi bl e f or t aki ng soundi ngs bef or e and af t er dr edgi ng.

Fi nal quant i t i es wi l l be subj ect t o deduct i ons or cor r ect i on of deduct i ons pr evi ousl y made because of excessi ve over dept h, dr edgi ng out si de or aut hor i zed ar eas, or pl acement of mat er i al i n an unaut hor i zed manner .

3. 4. 1 Met hod of Measur ement

Quant i t y of mat er i al r emoved t hat wi l l be pai d f or wi l l be measur ed by cubi c yar d by means of t opogr aphi c sur veys of f i l l s i t es t aken bef or e and af t er dr edgi ng. The dr awi ngs r epr esent exi st i ng condi t i ons based on cur r ent avai l abl e i nf or mat i on, but wi l l be ver i f i ed and cor r ect ed, i f necessar y, by soundi ngs t aken bef or e dr edgi ng i n each l ocal i t y.

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3. 4. 2 Mont hl y Est i mat es

Mont hl y est i mat es of wor k compl et ed wi l l be based on t he r esul t of soundi ngs t aken dur i ng t he pr ogr ess of t he wor k. Deduct i ons wi l l be made f or dr edgi ng and pl acement not i n accor dance wi t h t he speci f i cat i ons.

3. 5 FI NAL EXAMI NATI ON AND ACCEPTANCE

As soon as pr act i cabl e af t er t he compl et i on of ar eas, whi ch i n t he opi ni on of t he Cont r act i ng Of f i cer , wi l l not be af f ect ed by f ur t her dr edgi ng oper at i ons, each ar ea wi l l be exami ned by t he Gover nment by soundi ng or sweepi ng, or bot h. Remove shoal s and l umps as r equi r ed by met hods appr oved by t he Gover nment . However , i f t he bot t om i s sof t and t he shoal ar eas f or m no mat er i al obst r uct i on t o navi gat i on, r emoval may be wai ved at t he di scr et i on of t he Gover nment . The Cont r act or wi l l be not i f i ed when soundi ngs or sweepi ngs ar e t o be made and wi l l be per mi t t ed t o accompany t he soundi ng or sweepi ng par t y and t o i nspect t he dat a and met hods used i n pr epar i ng t he f i nal quant i t y f or payment . When ar eas ar e f ound t o be i n a sat i sf act or y condi t i on, t he wor k t her ei n wi l l be accept ed as compl et e.

Re- dr edgi ng at t he Cont r act pr i ce, wi t hi n t he l i mi t of avai l abl e f unds, may be compl et ed wi t h t he consent of bot h t he Gover nment and t he Cont r act or when i nf i l l or shoal i ng beyond t he Cont r act or ' s cont r ol occur s i n any ar ea pr evi ousl y accept ed.

3. 6 PLANT REMOVAL

Upon compl et i on of t he wor k, r emove al l dr edgi ng pl ant , i ncl udi ng r anges, buoys, pi l es, and ot her mar ker s or obst r uct i ons wi t hi n 14 days.

- - End of Sect i on - -

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