W912P624B0010-0004 Amendment - Sturgeon Bay Breakwater 20240628.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83)

Prescribed by GSA

FAR (48 CFR) 53.243

This amendment W912P624B0010-0004 provides the accompanying specif ication page changes.

The response date and time is extended. Offers are now due July 9, 2024 2:00PM central time.

All other terms and coditions remain the same.

1. CONTRACT ID CODE PAGE OF PAGES

1 2

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 28-Jun-2024

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912P624B0010

X 9B. DATED (SEE ITEM 11)

30-May-2024

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer X is extended, is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

28-Jun-2024

CODE

U.S. ARMY ENGINEER DISTRICT, CHICAGO

231 SOUTH LASALLE STREET SUITE 1500

CHICAGO IL 60604-1437

W912P6 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912P624B0010

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

(End of Summary of Changes)

St ur geon Bay Br eakwat er Repai r s FY24 W912P624B0010

SECTI ON TABLE OF CONTENTS

DI VI SI ON 35 - WATERWAY AND MARI NE CONSTRUCTI ON

SECTI ON 35 31 25

TI MBER CRI B BREAKWATER REPAI R

05/ 09

PART 1 GENERAL

1. 1 REFERENCES

1. 2 SYSTEM DESCRI PTI ON

1. 3 DEFI NI TI ONS

1. 3. 1 Gener al

1. 3. 1. 1 Ser i es

1. 3. 1. 2 Sect i on

1. 3. 1. 3 Row

1. 3. 1. 4 Cycl e

1. 3. 1. 5 I nt er mi t t ent Gr out i ng

1. 3. 1. 6 Spl i t Spaci ng

1. 3. 1. 7 Cl osur e

1. 3. 1. 8 Ref usal - Vol umet r i c Ref usal

1. 3. 1. 9 St age

1. 3. 1. 10 Communi cat i on

1. 4 SUBMI TTALS

1. 5 MATERI ALS DELI VERY, STORAGE, AND HANDLI NG

1. 5. 1 Gr out Mat er i al s

1. 6 PROJECT/ SI TE CONDI TI ONS

1. 6. 1 Fi el d Condi t i ons

1. 6. 2 Fi el d Measur ement s

1. 7 SEQUENCI NG AND SCHEDULI NG OF DRI LLI NG AND GROUTI NG

1. 7. 1 Gener al

1. 8 QUALI FI CATI ONS

1. 8. 1 Cr edent i al s

PART 2 PRODUCTS

2. 1 GROUTI NG MATERI AL

2. 1. 1 Wat er

2. 1. 2 Cement

2. 1. 3 Pozzol ans

2. 1. 4 Admi xt ur es

2. 1. 4. 1 Wat er Reducer

2. 1. 4. 2 Super pl ast i c i zer

2. 1. 5 Fl ui di f i er

2. 1. 6 Ant i Wash- out Agent

2. 1. 7 Sand

2. 2 CONTAI NMENT BARRI ERS

PART 3 EXECUTI ON

3. 1 COMPATI BI LI TY TEST PROGRAM AND DRI LLI NG AND GROUTI NG WORK PLANS

AND PREPARATORY I TEMS

3. 1. 1 Gener al

3. 1. 2 Compat i bi l i t y Test Pr ogr am Wor k Pl an

3. 1. 3 Dr i l l i ng and Gr out i ng Wor k Pl ans

SECTI ON 35 31 25 Page 1

AMD0004 - 06/ 17/ 24

3. 1. 4 Gr out Hol e Layout

3. 2 EQUI PMENT

3. 2. 1 Gener al

3. 2. 2 Dr i l l i ng Equi pment

3. 2. 2. 1 Dr i l l i ng Condi t i ons

3. 2. 3 Gr out i ng Equi pment

3. 2. 3. 1 Gr out Pl ant

3. 3 GROUT CONTAI NMENT

3. 4 GROUT HOLE DRI LLI NG

3. 4. 1 Gener al

3. 4. 1. 1 Dr i l l i ng Log and Recor ds

3. 4. 2 Locat i on and Dept h

3. 4. 3 Casi ng f or Gr out Hol es

3. 4. 3. 1 Casi ng

3. 4. 3. 2 Casi ng I nst al l at i on

3. 4. 3. 3 Gr out Dat a Logger

3. 5 GROUTI NG PROCEDURES

3. 5. 1 Gr out i ng

3. 5. 2 Gr out i ng Lakewar d and Har bor si de Rows

3. 5. 3 Gr out Mi xes

3. 5. 4 Communi cat i on

3. 5. 5 Gr out i ng Pr essur es

3. 5. 6 Gr out Dat a

3. 5. 7 Measur ement Equi pment

3. 5. 8 Mi xi ng Pr ocedur e

3. 5. 9 Gr out I nj ect i on

3. 5. 10 Backf i l l i ng of Hol es

3. 5. 11 Equi pment Ar r angement and Oper at i on

3. 5. 12 Pr ot ect i on t o Wor k and Cl eanup

3. 5. 13 Recor ds

3. 5. 14 Communi cat i ons

- - End of Sect i on Tabl e of Cont ent s - -

SECTI ON 35 31 25 Page 2

SECTI ON 35 31 25

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05/ 09

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 i n t he t ext by basi c desi gnat i on onl y.

ASTM I NTERNATI ONAL ( ASTM)

ASTM C 70 ( 2006) St andar d Test Met hod f or Sur f ace Moi st ur e i n Fi ne Aggr egat e

ASTM C 136 ( 2006) St andar d Test Met hod f or Si eve Anal ysi s of Fi ne and Coar se Aggr egat es

ASTM C 150 ( 2007) St andar d Speci f i cat i on f or Por t l and Cement

ASTM C 204 ( 2007) St andar d Test Met hod f or Fi neness of Hydr aul i c Cement by Ai r Per meabi l i t y Appar at us

ASTM C 494 ( 2000) Chemi cal Admi xt ur es f or Concr et e

ASTM C 618 ( 2008) St andar d Speci f i cat i on f or Coal Fl y Ash and Raw or Cal c i ned Nat ur al Pozzol an f or Use i n Concr et e

ASTM C 937 ( 2002) Gr out Fl ui di f i er f or Pr epl aced- Aggr egat e Concr et e

U. S. ARMY CORPS OF ENGI NEERS ( USACE)

COE CRD- C 100 ( 1975) Met hod of Sampl i ng Concr et e Aggr egat e and Aggr egat e Sour ces, and Sel ect i on of Mat er i al f or Test i ng

1. 2 SYSTEM DESCRI PTI ON

Thi s sect i on of t he speci f i cat i ons cover s conduct i ng pr e- gr out i ng compat i bi l i t y pr ogr am on l and; dr i l l i ng t hr ough concr et e br eakwat er cap, usi ng ei t her di amond r ot ar y or per cussi on dr i l l i ng equi pment , maki ng gr out connect i ons; f ur ni shi ng, handl i ng, t r anspor t i ng, st or i ng, mi xi ng and i nj ect i ng t he l ow- mobi l i t y gr out i ng mat er i al s; backf i l l i ng hol es; pat chi ng and backf i l l i ng t he f i ni shed gr out hol es; c l ean up of t he ar eas upon compl et i on of t he wor k and al l ot her such oper at i ons as ar e i nci dent al t o t he dr i l l i ng and gr out i ng. The wor k consi st s of st abi l i z i ng t he br eakwat er st r uct ur e by i nst al l i ng a doubl e r ow gr out cur t ai n, t he appr oxi mat e l ocat i ons, l i mi t s, and det ai l s as i ndi cat ed i n t he dr awi ngs usi ng l ow- mobi l i t y consol i dat i on gr out s.

SECTI ON 35 31 25 Page 3

I nspect t he br eakwat er st r uct ur e and backf i l l open 2' x2' cent er l i ne r el i ef wel l s and openi ngs i n t he concr et e cap wi t h l ow- mobi l i t y Cont r ol l ed Low St r engt h Mat er i al ( CLSM) as shown on t he Dr awi ngs as an i ni t i al saf et y measur e. No wor k i s r equi r ed on t he br eakwat er shoul der . Dr i l l i ng and gr out i ng shal l f ol l ow t he sequence of wor k pr esent ed i n t he Cont r act or ' s Dr i l l i ng and Gr out i ng Wor k Pl an and appr oved by t he Cont r act i ng Of f i cer Repr esent at i ve ( COR) . Adher ence t o t he schedul e and sequence di r ect ed by t he COR wi l l not be seen as cause f or t i me ext ensi on or c l ai ms f or addi t i onal cost s beyond t hose speci f i ed her ei n.

1. 3 DEFI NI TI ONS

1. 3. 1 Gener al

The dr i l l i ng and gr out i ng shal l consi st of t wo- l i ne gr out cur t ai n. The l i nes of t he gr out cur t ai n shal l be gr out ed usi ng a l ow- mobi l i t y sanded por t l and cement Cont r ol l ed Low St r engt h Mat er i al ( I DOT St andar d Speci f i cat i on f or Road and Br i dge Const r uct i on, Sect i on 1019 Cont r ol l ed Low St r engt h Mat er i al - CLSM, or s i mi l ar ) i n l i mi t ed quant i t i es t o pr event gr out mat er i al s f r om cont ami nat i ng l ake wat er . The gr out cur t ai n shal l be gr out ed usi ng CLSM wi t h ant i - washout addi t i ves and char act er i st i cs. The dr i l l i ng and gr out i ng shal l be per f or med on ser i es of bor ehol es wi t hi n sect i ons, usi ng t he met hods as descr i bed her ei n.

1. 3. 1. 1 Ser i es

A ser i es of gr out hol es r ef er s t o a gr oup of bor ehol es gr out ed at one st at i on al i gned per pendi cul ar t o t he br eakwat er cent er l i ne.

1. 3. 1. 2 Sect i on

A sect i on i s a di v i s i on al ong t he gr out cur t ai n, not l ess t han 48 f eet up and down st at i on f r om a hol e bei ng dr i l l ed or gr out ed wi t hi n whi ch gr out i ng of successi ve ser i es of hol es shal l be gr out ed. I nsof ar as pr act i cabl e, t he gr out cur t ai n shal l be subdi v i ded i nt o sect i ons i n a manner t o f aci l i t at e t he Cont r act or ' s oper at i ons; however , dr i l l i ng wi t hi n one sect i on adj acent t o a sect i on t hat has yet t o be gr out ed shal l not be done except as di r ect ed by t he COR.

1. 3. 1. 3 Row

A r ow i s def i ned as t he l i ne of hol es par al l el t o t he st r uct ur e. Ther e ar e 2 r ows desi gned as shown on t he Dr awi ngs:

Row A - t he l akesi de r ow of hol es Row B - t he r ow of hol es near est t he har bor s i de of t he st r uct ur e.

1. 3. 1. 4 Cycl e

A cycl e under t hese Speci f i cat i ons i s def i ned as a per i od of cont i nuous gr out i ng of a hol e f r om st ar t t o shut of f of gr out f l ow. Hol es may be gr out ed f or mor e t han one cycl e, f ol l owi ng suf f i c i ent el apsed t i me bet ween cycl es f or t he gr out t o set , i n cases wher e gr out i ng was suspended because t he maxi mum cycl e quant i t y has been pumped, pr i or t o gr out communi cat i ng wi t h adj acent hol es, has not f i l l ed voi ds wi t hi n t he st r uct ur e, or due t o

SECTI ON 35 31 25 Page 4 t he appear ance of gr out out si de of cont ai nment , or when i nt er r upt i on i s di r ect ed by t he COR.

1. 3. 1. 5 I nt er mi t t ent Gr out i ng

I nt er mi t t ent gr out i ng under t hese Speci f i cat i ons i s def i ned as gr out i ng of mor e t han one cycl e appl i ed t o t he same gr out hol e, each cycl e separ at ed by suf f i c i ent t i me f or t he gr out t o r each i ni t i al set .

1. 3. 1. 6 Spl i t Spaci ng

Spl i t spaci ng i s t he pr ocedur e of l ocat i ng an addi t i onal gr out hol e mi dway bet ween t wo pr evi ousl y dr i l l ed and gr out ed hol es. Addi t i onal spl i t space hol es ar e as di r ect ed by t he Cont r act i ng Of f i cer .

1. 3. 1. 7 Cl osur e

Cl osur e i s def i ned as t he maxi mum al l owabl e quant i t y bei ng i nj ect ed, or t he accept abl e l evel of voi d- f i l l i ng of a sect i on achi eved by gr out i ng.

For t hi s Cont r act , t he c l osur e cr i t er i a ar e:

1. Reachi ng t he pr e- det er mi ned maxi mum vol ume of gr out t o be i nj ect ed. Obser ved compl et e f i l l i ng of voi ds i n t he st one f i l l wi t hi n t he t i mber cr i b t o t he desi gned ext ent , det er mi ned by t he pr esence of gr out f i l l i ng or bei ng cl ear l y v i s i bl e i n adj acent hol es; or

2. Cessat i on of gr out i ng di r ect ed by t he COR.

1. 3. 1. 8 Ref usal - Vol umet r i c Ref usal

Ref usal i s def i ned f or t hi s Cont r act as t he condi t i on wher e a st age has accept ed a quant i t y of CLSM not t o exceed 6 ( s i x) cubi c yar ds under t he mi ni mal l y r equi r ed pr essur e exer t ed by t he gr out pump t o move t he gr out t hr ough t he gr out l i nes but i n no case shal l exceed 40 PSI or t he st age or hol e has been f i l l ed wi t h CLSM.

1. 3. 1. 9 St age

A st age i s one compl et e oper at i onal cycl e of pr essur e gr out i ng, wi t hi n a segment of a gr out hol e. For t hi s cont r act t her e ar e t wo st ages per hol e.

1. 3. 1. 10 Communi cat i on

Communi cat i on i s t he passage of wat er or gr out f r om one hol e t o anot her or t o any openi ng or exposed sur f ace dur i ng t he cour se of dr i l l i ng and/ or gr out i ng. Hol es t hat communi cat e wi l l be not ed on t he gr out l ogs.

1. 4 SUBMI TTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;

submi t t al s not havi ng a " G" desi gnat i on ar e f or i nf or mat i on onl y. When used, a desi gnat i on f ol l owi ng t he " G" desi gnat 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 . The f ol l owi ng shal l be submi t t ed i n accor dance wi t h Sect i on 01 33 00 SUBMI TTAL PROCEDURES:

SD- 01 Pr econst r uct i on Submi t t al s

Compat i bi l i t y Test ; G, GG

SECTI ON 35 31 25 Page 5

Submi t compat i bi l i t y t est r esul t s i ndi cat i ng t he component s, mi xi ng pr ocedur es, pr opor t i ons t est r esul t s f or s l ump, speci f i c gr avi t y, bl eed, compr essi ve st r engt h and document at i on of compat i bi l i t y f r om admi xt ur e manuf act ur er s.

Dr i l l i ng Wor k Pl an; G, GG

Submi t Wor k Pl an det ai l i ng st af f i ng, equi pment and pr ocesses pr oposed t o dr i l l gr out hol es. I dent i f y l ogi st i cs, sequence of wor k, and coor di nat i on wi t h ot her aspect s of t he wor k. I dent i f y pr ocedur es t o mi t i gat e obst r uct i ons ( r e- bar and wood) encount er ed, and met hods t o i dent i f y and measur e voi ds encount er ed. Pr ovi de f or ms t o be used f or dr i l l hol e l ogs.

Gr out i ng Wor k Pl an; G, GG

Submi t Wor k Pl an det ai l i ng st af f i ng, equi pment and pr ocesses pr oposed t o t r anspor t , st or e, measur e, mi x and cont r ol pr essur e and f l ow r at es and r ecor d quant i t i es, pr essur es and vol umes of gr out i nj ect ed i nt o gr out hol es I dent i f y l ogi st i cs, sequence of wor k, and coor di nat i on wi t h ot her aspect s of t he wor k. I dent i f y pr ocedur es t o mi t i gat e l i ne bl ockage, and l eakage of gr out f r om t he br eakwat er st r uct ur e. Pr ovi de gr out and dr i l l i ng f or ms, r ecor d sampl es t o be used, and el ect r oni c dat a.

Compat i bi l i t y Test Pr ogr am Wor k Pl an; G, GG

SD- 02 Shop Dr awi ngs

Recor ds; G, GG

The Cont r act or shal l submi t compl et e, l egi bl e copi es of DRI LLI NG RECORDS, GROUT RECORDS and al l phot ogr aphs t o t he COR wi t hi n 1 week af t er a hol e i s compl et ed or at any t i me di r ect ed by t he COR.

Recor ds shal l i dent i f y t he hol e number , t ot al dept h dr i l l and t he dept hs/ i nt er val s of t he voi d space beneat h t he concr et e cap and t he gr out i ng cycl es, vol umes pr essur es and t i me i nt er val s of dr i l l i ng and gr out i ng.

Gr out i ng Dat a Repor t s

The Cont r act or shal l submi t an exampl e of t he r ecor ds pr oduced by t he Gr out i ng Dat a Logger ( s) not l ess t han 30 days pr i or t o t he commencement of dr i l l i ng and gr out i ng hol es.

Gr out Pr oduct i on Recor ds

The Cont r act or shal l submi t Gr out Pr oduct i on Recor ds f r om t he Gr out i ng Dat a Logger ( s) on a dai l y basi s.

The Cont r act or shal l submi t el ect r oni c r ecor ds i n Mi cr ost at i on and Excel Spr eadsheet i ndi cat i ng t he hol e i dent i f i cat i on; t ype( s) and quant i t i es of gr out and gr out component s pl aced, dat e( s) and t i mes of act i v i t i es on a weekl y basi s.

Gr out Hol e Layout G, GG

The Cont r act or shal l submi t a l ayout i n pl an vi ew i l l ust r at i ng t he

SECTI ON 35 31 25 Page 6 l ayout of gr out hol e l i nes of t he gr out cur t ai n not l ess t han 30 days pr i or t o t he commencement of dr i l l i ng.

SD- 03 Pr oduct Dat a

Dr i l l i ng Equi pment ; G, GG

Gr out Mi xes; G, GG

Det ai l s i ncl udi ng, but not l i mi t ed t o al l component s, pr opor t i ons, mi xi ng pr ocedur es and sequence of addi t i ves, t est r esul t s f or sand gr adat i on, gr out v i scosi t y/ s l ump, densi t y, set t i me, st r engt h, bl eed, shr i nkage, and ot her t est i ng as may be appr opr i at e shal l be submi t t ed 7- days pr i or t o commencement of use of t he mi xes.

Gr out i ng Mat er i al ; G, GG

The sour ce of al l gr out component s and a det ai l ed l i s t and manuf act ur er s ' descr i pt i ve l i t er at ur e of al l component s of gr out s used i n t he wor k. I ncl ude st at ement s of compat i bi l i t y of al l component s f or t hi s appl i cat i on and wi t h each ot her .

Gr out Pl ant ; G, GG

Gr out i ng Equi pment G, GG

A det ai l ed pl an shal l be submi t t ed showi ng equi pment f l oat i ng pl ant and gr out pl ant and gr out mat er i al s st or age l ayout pr oposed f or mi xi ng and pl aci ng gr out . A l i s t , det ai l s, descr i pt i on and dat a on t he gr out i ng equi pment and mat er i al s shal l be submi t t ed f or conf or mance wi t h t he r equi r ement s of par agr aph EQUI PMENT.

SD- 06 Test Repor t s

Syst em Cal i br at i on Repor t s

The Cont r act or shal l pr ovi de NI ST t r aceabl e cal i br at i on r epor t s f or cal i br at i on cer t i f i cat es f or f l ow met er s, pr essur e t r ansducer s, and any bat ch scal es and/ or admi xt ur e di spensi ng equi pment , Gr out Dat a Logger ( s) and al l r el at ed equi pment not l ess t han 7 days pr i or t o t he commencement usi ng t he equi pment . Fl ow met er s and pr essur e t r ansducer s wi l l be f i el d cal i br at ed weekl y.

Gr out Pr oper t y Test s

The Cont r act or shal l pr ovi de l abor at or y t est i ng r esul t s of gr out mat er i al s pr oper t i es not l ess t han 7 days pr i or t o t he use of t hese mat er i al s. Fi el d t est dat a f or s l ump and any ot her f i el d t est s r equi r ed shal l al so be r ecor ded f or ever y 50 cubi c yar d of gr out pl aced on t he dai l y QC r epor t s and t he dai l y gr out r epor t s.

Gr out Dat a

SD- 07 Cer t i f i cat es

Cr edent i al s; G, GG

The Cont r act or shal l submi t t he name and qual i f i cat i ons of t he Gr out i ng Super i nt endent ( s) not l ess t han 30 days pr i or t o

SECTI ON 35 31 25 Page 7 commencement of t he Compat i bi l i t y Test Pr ogr am. Changes i n per sonnel wi l l r equi r e addi t i onal submi t t al s f or appr oval of t hese key per sonnel .

The Cont r act or or subcont r act or per f or mi ng t he gr out i ng shal l have per f or med gr out i ng on a scal e compar abl e t o t hi s wor k on a mi ni mum of 3 pr oj ect s i n t he past 5 year s, and shal l have demonst r at ed pr of i c i ency wi t h t he mat er i al s and equi pment t o be used i n t hi s wor k. The Cont r act or shal l submi t t he names and descr i pt i ons of pr evi ous pr oj ect s i ndi cat i ng f ul f i l l ment of t he exper i ence r equi r ement f or t hi s wor k wi t h t he Wor k Pl an.

1. 5 MATERI ALS DELI VERY, STORAGE, AND HANDLI NG

1. 5. 1 Gr out Mat er i al s

A suf f i c i ent quant i t y of pr e- mi xed gr out mat er i al s or cement , wat er and al l ot her gr out mi x component s shal l be st or ed at or near t he s i t e of t he wor k t o i nsur e t hat gr out i ng oper at i ons wi l l not be del ayed by shor t age of gr out mat er i al s or wat er .

I n t he event t he mi x component s and/ or cement ar e f ound t o cont ai n l umps or f or ei gn mat t er of a nat ur e and i n amount s whi ch, i n t he opi ni on of t he COR, may be del et er i ous t o t he gr out i ng oper at i ons, scr eeni ng t hr ough a st andar d 100 mesh scr een may be r equi r ed. No payment wi l l be made f or such scr eeni ng.

Al l mat er i al s ar e r equi r ed t o be adequat el y pr ot ect ed f r om i ncl ement weat her , i ncl udi ng r ai n, snow and f r eezi ng condi t i ons. Sui t abl e encl osur es t o pr event t he degr adat i on of t he var i ous mat er i al s pr i or t o use, wi l l be r equi r ed. Mat er i al s beyond t he manuf act ur er ' s desi gnat ed shel f l i f e shal l not be used i n t hi s wor k, and any such mat er i al s br ought on si t e shal l be r emoved and di sposed of at t he Cont r act or ' s expense.

1. 6 PROJECT/ SI TE CONDI TI ONS

1. 6. 1 Fi el d Condi t i ons

The pr ogr am shown and descr i bed her ei n and i n t he Dr awi ngs i s based on cur r ent l y avai l abl e i nf or mat i on. Condi t i ons encount er ed dur i ng const r uct i on may r equi r e addi t i ons or del et i ons. Gr out i ng mi xes, pr essur es, i nj ect i on r at e and t he sequence i n whi ch t he hol es ar e dr i l l ed and gr out ed shal l be submi t t ed by t he Cont r act or i n accor dance wi t h t he r equi r ement s i ndi cat ed, but may be al t er ed as f i el d condi t i ons di ct at e and appr oved by t he COR. The cap of t he br eakwat er st r uct ur e cont ai ns exi st i ng pr essur e r el i ef wel l s t o be f i l l ed as t he f i r st st ep of const r uct i on by t he Cont r act or .

1. 6. 2 Fi el d Measur ement s

Pr oduce a pr el i mi nar y gr out hol e l ayout f or t he r evi ew and appr oval of t he COR. The f i nal dr i l l hol e l ocat i ons wi l l be as appr oved by t he COR pr i or t o t he st ar t of wor k. The l ocat i ons of dr i l l hol es shal l be sur veyed by t he Cont r act or t o t he near est 0. 1 f t on t he NAD 83 coor di nat e syst em and el evat i ons sur veyed usi ng t he I nt er nat i onal Gr eat Lakes Dat um. I ncl ude sur veyed l ocat i ons of hol es r edr i l l ed or r epl aced r egar dl ess of r eason.

1. 7 SEQUENCI NG AND SCHEDULI NG OF DRI LLI NG AND GROUTI NG

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1. 7. 1 Gener al

The or der i n whi ch t he wor k i s t o be accompl i shed shal l be as out l i ned i n t he Compat i bi l i t y Test Pr ogr am Wor k Pl an and Dr i l l i ng and Gr out i ng Wor k Pl ans and as appr oved by t he COR. The gener al r equi r ement s t hat shal l appl y ar e as f ol l ows:

a. Conduct an on- l and Compat i bi l i t y Test Pr ogr am usi ng t he act ual gr out i ng equi pment t o devel op t he mi x desi gns f or t he CLSM gr out .

Base l i ne r heol ogi c and physi cal pr oper t i es of gr out mi xes shal l be est abl i shed and compar e t o t he dai l y QC t est r esul t s. I f t est r esul t s do not mat ch, t he Cont r act or wi l l cease oper at i ons unt i l cor r ect i ve act i on i s t aken t o achi eve.

b. I dent i f y and enumer at e pr essur e r el i ef hol es t o be f i l l ed wi t h CLSM pr i or t o est abl i shi ng l i nes of gr out hol es.

c. Ver i f y t he cor r ect and appr oved l ocat i on, or i ent at i on and al i gnment of t he gr out hol es bef or e dr i l l i ng and i nst al l i ng t empor ar y casi ngs. Est abl i sh and l ayout sect i ons of t he gr out cur t ai n t o be dr i l l ed and gr out ed i n sequence and mar k gr out hol es and sect i ons on t he concr et e br eakwat er cap accor di ngl y wi t h pai nt .

d. I f CLSM appear s beyond cont ai nment bar r i er , r epor t t hi s obser vat i on t o t he COR i mmedi at el y, cease gr out i ng and adj ust gr out f l ows, cont ai nment pr ocedur es, and/ or mi x t o pr event r ecur r ence bef or e commenci ng gr out i ng. Onl y af t er di r ect i on by t he COR may t he Cont r act or cont i nue gr out i ng a hol e t hat has r esul t ed i n communi cat i on t o t he l ake wat er . Gr out each hol e unt i l :

1. CLSM i s det ect ed i n adj acent hol es;

2. 6 6 ( s i x) cubi c yar ds of gr out has been i nj ect ed i n each st age, or ;

3. The hol e r ef uses t o accept gr out ;

4. Di r ect ed by t he COR t o st op.

I n t he case of bot h t he l akewar d and har bor si de r ows of gr out hol es, gr out i ng shal l be done i n t he sequence def i ned i n t he Wor k Pl an unl ess ot her wi se appr oved by t he COR.

f . Gr out hol es wi t hi n each r ow shal l be spaced 6 ( s i x) - f eet apar t i n each l i ne of t he gr out cur t ai n. Dr i l l i ng and gr out i ng shal l not be per f or med i n sect i ons adj oi ni ng an i ncompl et el y- gr out ed sect i on of t he gr out cur t ai n except as di r ect ed by t he COR.

g. Remove casi ngs and t op of f gr out hol es t o t he sur f ace of t he br eakwat er cap by t r emi e gr out i ng upon compl et i on of each sect i on of t he gr out cur t ai n.

1. 8 QUALI FI CATI ONS

1. 8. 1 Cr edent i al s

The Cont r act or shal l pr ovi de a qual i f i ed Gr out i ng Super i nt endent , exper i enced i n usi ng t he mat er i al s and equi pment pr oposed f or t hi s wor k.

The Gr out i ng Super i nt endent shal l have a mi ni mum of 5- year s exper i ence i n mar i ne const r uct i on, and 10- year s exper i ence i n gr out i ng pr oj ect s, wi t h at l east 3 gr out i ng pr oj ect s i nvol v i ng sodi um si l i cat e gr out s. The Gr out i ng

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Super i nt endent shal l be pr esent dur i ng al l dr i l l i ng and gr out i ng. Thi s i ndi v i dual shal l be r esponsi bl e f or t he over si ght of al l dr i l l i ng and gr out i ng oper at i ons, mi x f or mul at i ons and t he pr epar at i on of gr out i ng r ecor ds f or each bor i ng and ser i es of bor i ngs.

The pr esence of a Gover nment r epr esent at i ve or t he keepi ng of separ at e dr i l l i ng r ecor ds by t he COR shal l not r el i eve t he Cont r act or of t he r esponsi bi l i t y f or t he wor k speci f i ed i n t hi s speci f i cat i on.

PART 2 PRODUCTS

2. 1 GROUTI NG MATERI AL

The gr out s shal l be composed of wat er and por t l and cement , pozzol ans, admi xt ur es, ant i washout addi t i ve and sand, wher e appr opr i at e and f i l l er s i n var yi ng pr opor t i ons consi st ent wi t h I DOT Sect i on 1019 CLSM, or s i mi l ar . The maxi mum compr essi ve st r engt h l i mi t i n I DOT Sect i on 1019 may be exceeded. The gr out mi xes shal l be pr oposed and demonst r at ed by t he Cont r act or i n accor dance wi t h t he r equi r ement s of t hese speci f i cat i ons, and shal l be var i ed t o meet t he char act er i st i cs of each hol e as det er mi ned by condi t i ons encount er ed. The var i ous mat er i al s t o be f ur ni shed by t he Cont r act or shal l conf or m t o t he speci f i cat i ons l i s t ed i n par agr aphs bel ow.

2. 1. 1 Wat er

The Cont r act or i s r esponsi bl e f or obt ai ni ng wat er f or hi s oper at i ons and t he use of hi s empl oyees on- si t e. Lake wat er may be used i n gr out mi xes;

however t he Cont r act or shal l be r esponsi bl e f or any per mi t s associ at ed wi t h t he use of wat er f r om Lake Mi chi gan. The Cont r act or shal l be sol el y r esponsi bl e f or f ur ni shi ng wat er of sui t abl e quant i t y and qual i t y f or use i n t he wor k. The Cont r act or shal l be sol el y r esponsi bl e f or al l pumps, suppl y l i nes, hoses, power and r el at ed equi pment and mat er i al s necessar y t o pr ovi de wat er f or t he act i v i t i es under t hi s Cont r act . Al l wat er l i nes and pumps shal l be s i zed appr opr i at el y t o del i ver suf f i c i ent quant i t y and qual i t y of wat er f or al l concur r ent act i v i t i es on si t e. The cost of obt ai ni ng wat er and any cost f or wat er qual i t y t est i ng and i mpr ovement s shal l be t he r esponsi bi l i t y of t he Cont r act or and ar e consi der ed i nci dent al t o t he dr i l l i ng and gr out i ng act i v i t i es.

2. 1. 2 Cement

Cement used i n gr out shal l be Type I I or Type I L Por t l and cement t hat conf or ms t o t he r equi r ement s of ASTM C 150, except t hat t he cement shal l have a Bl ai ne f i neness of 3, 500 cm2/ g as det er mi ned by ASTM C 204. The use of bul k cement wi l l be per mi t t ed, pr ovi ded t he Cont r act or empl oys met hods of handl i ng, t r anspor t i ng, and st or age t hat ar e sat i sf act or y t o t he Cont r act i ng Of f i cer Repr esent at i ve, ot her wi se onl y cement f ur ni shed i n c l ot h or paper bags wi l l be accept ed t o use i n t he wor k.

2. 1. 3 Pozzol ans

Pozzol ans shal l be Type F f l yash conf or mi ng t o ASTM C 618. Sampl i ng shal l be done by t he Cont r act or dur i ng mi x desi gn. Addi t i onal sampl i ng and t est i ng may be r equi r ed at t he di r ect i on of t he COR t o i nsur e compl i ance wi t h ASTM C 618. Al l t est s of pozzol ans shal l be made by t he Cont r act or at no addi t i onal expense t o t he Gover nment . Pozzol ans may be f ur ni shed i n paper sacks or i n bul k, Mat er i al s shal l be t r anspor t ed, handl ed, and st or ed so as t o avoi d damage, wast e, or absor pt i on of moi st ur e.

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2. 1. 4 Admi xt ur es

Admi xt ur es shal l be added t o t he gr out i mmedi at el y bef or e or dur i ng i t s mi xi ng and shal l consi st of an appr opr i at e combi nat i on of one or mor e of t he f ol l owi ng: wat er r educer s, super pl ast i c i zer s, f l ui di f i er s, ant i wash- out addi t i ves. Al l admi xt ur es shal l be compat i bl e wi t h ot her component s of t he gr out .

2. 1. 4. 1 Wat er Reducer

A wat er r educer possessi ng char act er i st i cs t hat r educe t he wat er demand by at l east 5 per cent shal l be used. The qual i t y of t he mat er i al s shal l meet t he r equi r ement s of ASTM C 494. The mat er i al s shal l be shi pped handl ed and st or ed i n such a way as t o pr event det er i or at i on, cont ami nat i on, damage or wast e.

2. 1. 4. 2 Super pl ast i c i zer

A hi gh- r ange wat er r educer t hat decr ease t he wat er demand by at l east 12 per cent . Napht hal ene sul phonat e wi t h t he abi l i t y t o coat gr out par t i c l es i n t he suspensi on wi t h a f i l m havi ng a negat i ve char ge may be used i f compat i bl e wi t h t he ot her component s of t he gr out mi xes wi t hout adver sel y af f ect i ng t he desi r ed gr out pr oper t i es of each mi x. The mat er i al s shal l be shi pped, handl ed, and st or ed i n such a way as t o pr event det er i or at i on, cont ami nat i on, damage or wast e. Al t er nat i ves may be pr oposed by t he Cont r act or , cont i ngent upon appr oval by t he COR based on t est r esul t s and r evi ew of avai l abl e l i t er at ur e. No t i me ext ensi on wi l l be al l owed f or t he t i me r equi r ed t o r evi ew al t er nat i ve mat er i al s.

2. 1. 5 Fl ui di f i er

Fl ui di f i er shal l be a compound possessi ng char act er i st i cs whi ch wi l l i ncr ease t he f l owabi l i t y of t he mi xt ur e, assi st i n di sper sal of t he cement gr ai ns, and neut r al i ze t he set t i ng shr i nkage of t he gr out . The qual i t y of t he mat er i al shal l meet t he r equi r ement s speci f i ed i n ASTM C 937.

Sampl i ng of f l ui di f i er shal l be done by an aut hor i zed r epr esent at i ve of t he Cont r act i ng Of f i cer . Al l t est s wi l l be made by and at t he expense of t he Gover nment . Fl ui di f i er shal l be f ur ni shed i n moi st ur e- r esi st ant paper sacks shi pped i n seal ed cont ai ner s and shal l be handl ed and st or ed so as t o avoi d absor pt i on of moi st ur e, damage or wast e. Mat er i al whi ch has become caked due t o moi st ur e absor pt i on wi l l be r ej ect ed.

2. 1. 6 Ant i Wash- out Agent

An ant i - washout component such as Rheomac UW 450 or equal shal l be used i n gr out used f or t he i nt er i or hol es desi gned t o mai nt ai n t he gr out mi x i n an aqueous envi r onment .

2. 1. 7 Sand

a. Sand f or gr out shal l be c l ean and consi st of har d, t ough, dur abl e, uncoat ed par t i c l es wi t h no mor e t han 5 per cent passi ng t he #200 si eve. The shape of t he par t i c l es shal l be gener al l y r ounded or cubi cal . The sand shal l be gener al l y wel l gr aded f r om f i ne t o coar se i n accor dance wi t h ASTM C 136 wi t h 100 per cent passi ng t he No. 16 si eve. Sl ag sand wi l l not be accept ed f or t hi s wor k. .

b. The sand shal l be subj ect ed t o such t est s by t he Cont r act or at no addi t i onal expense t o t he Gover nment as ar e necessar y t o det er mi ne i t s

SECTI ON 35 31 25 Page 11 accept abi l i t y . Al l sampl i ng of sand shal l be i n accor dance wi t h t he appl i cabl e sampl i ng pr ovi s i ons cont ai ned i n COE CRD- C 100 or as di r ect ed. The t est s t o whi ch t he sand wi l l be subj ect ed i ncl ude speci f i c gr avi t y, absor pt i on, soundness i n magnesi um sul f at e, pet r ogr aphi c anal yses, and any ot her t est s t hat ar e necessar y t o demonst r at e t hat gr out of adequat e dur abi l i t y can be pr oduced.

c. The per cent age of sur f ace moi st ur e i n t er ms of t he sat ur at ed sur f ace- dr i ed sand shal l be det er mi ned i n accor dance wi t h ASTM C 70, or ot her met hod gi v i ng compar abl e r esul t s.

d. Sand shal l be st or ed i n such a manner as t o avoi d t he i ncl usi on of any f or ei gn mat er i al s i n t he gr out . Al l sand shal l r emai n i n f r ee dr ai ni ng st or age f or at l east 72 hour s pr i or t o use.

2. 2 CONTAI NMENT BARRI ERS

The gr out - cont ai nment bar r i er s shal l be of a mat er i al and desi gn such t hat t hey wi l l f i t t he t i mber cr i b sur f ace or ext er nal st one pr ot ect i on and r est r i ct t he escape of gr out f r om t he br eakwat er . Pl ace an ext er i or l akesi de l ayer 18- i nch t hi ck of I DOT RR- 4, or s i mi l ar f r om t he wat er el evat i on ( +/ - 1 f oot ) t o a di st ance 5 f eet bel ow t he l ake l evel ( +/ - 1 f oot ) par al l el t o t he s l ope of t he st r uct ur e as t he mi ni mum l akesi de cont ai nment bar r i er . An appr oved t ur bi di t y cur t ai n shal l be pl aced al ong t he har bor si de of t he st r uct ur e as mi ni mum cont ai nment bar r i er on t he har bor si de of t he st r uct ur e. Addi t i onal measur es may be r equi r ed at t he di r ect i on of t he COR. I f used, f or ms shal l be of suf f i c i ent st r engt h and desi gn t o cont ai n t he gr out mat er i al s. Bar r i er s f or t he har bor s i de may be const r uct ed of wood, st eel , i mper meabl e geot ext i l e or ot her mat er i al accept ed by t he COR and may be si ngl e- use or r eusabl e. Bar r i er s ot her t han st one shal l be r emoved upon compl et i on of t he wor k, unl ess ot her wi se appr oved by t he COR. Gr out i ng wi l l not be per f or med wi t hi n 25 f eet of t he l eadi ng edge of t he bar r i er s.

Cont r act or may t empor ar i l y r emove exi st i ng ar mor st one f or i nst al l at i on of t he cont ai nment bar r i er . Cont r act or t o i ncl ude t he pr ocess and means and met hods i n t he dr i l l i ng wor k pl an. Removal cannot exceed mor e t han 100 f t .

Dur i ng st or m event s st one must r epl ace t o not l eave t he st r uct ur e unpr ot ect ed. Tempor ar i l y r emoved ar mor st one cannot be t empor ar i l y st ockpi l ed on t he l akebed.

PART 3 EXECUTI ON

3. 1 COMPATI BI LI TY TEST PROGRAM AND DRI LLI NG AND GROUTI NG WORK PLANS AND

PREPARATORY I TEMS

3. 1. 1 Gener al

Pr i or t o ot her const r uct i on act i v i t i es on t he br eakwat er st r uct ur e, backf i l l al l hol es on t he cap wi t h CLSM and al l ow suf f i c i ent t i me t o r each adequat e set / st r engt h f or subsequent oper at i ons as a pr el i mi nar y saf et y measur e. The Wor k Pl ans shal l i ncl ude, but not be l i mi t ed t o a wor ki ng schedul e of act i v i t i es; a per sonnel char t i dent i f y i ng key per sonnel , poi nt s of cont act and t hei r r esponsi bi l i t i es; a det ai l ed l i s t of equi pment and mat er i al s t o be used; pl an v i ew, shop dr awi ngs, and sect i ons i dent i f y i ng t he f eat ur es of t he wor k ar ea i ncl udi ng f l oat i ng pl ant , t r ai l er s, gr out pl ant s, st or age ar eas, st agi ng ar eas and t he gr out cur t ai n det ai l s; pr oposed sequence of dr i l l i ng, and gr out i ng. The Wor k Pl an shal l i ncl ude det ai l s of t he sequence of : compat i bi l i t y t est s, mi x desi gns, SECTI ON 35 31 25 Page 12 desi gn l ayout and i nst al l at i on of gr out / CLSM cont ai nment measur es, dr i l l i ng, gr out i ng gr out hol es, ant i c i pat ed st af f i ng and shi f t s, i dent i f i cat i on of key mi l est ones and a l i s t of assumpt i ons and a di scussi on of t hei r pot ent i al i mpact s on t he cour se of wor k and coor di nat i on of t he var i ous oper at i ons i nvol ved i n compl et i on of t he wor k.

3. 1. 2 Compat i bi l i t y Test Pr ogr am Wor k Pl an

Not l ess t han 30 days pr i or t o t he st ar t of t he appl i cabl e por t i on of t he wor k, t he Cont r act or shal l pr epar e and submi t a Compat i bi l i t y Test Pr ogr am Wor k Pl an. The Compat i bi l i t y Test Pr ogr am shal l be desi gned by t he Cont r act or t o devel op and demonst r at e t he f unct i onal i t y and per f or mance of gr out t o be used and det er mi ne t he appr opr i at e measur i ng, mi xi ng and pumpi ng pr ocedur es.

3. 1. 3 Dr i l l i ng and Gr out i ng Wor k Pl ans

The Dr i l l i ng Wor k Pl an and Gr out i ng Wor k Pl an shal l i ncl ude descr i pt i ons and det ai l s of equi pment , l abor and mat er i al descr i pt i ons and t he pr ot ocol s t o be f ol l owed i n compl et i on of t he wor k and al l coor di nat i on r equi r ed. Equi pment det ai l s shal l i ncl ude but not be l i mi t ed t o make, model , di mensi ons and capaci t i es of dr i l l i ng equi pment , packer s, gages, Gr out Dat a Logger ( s) , t r ansducer s, pumps, hoses, dr i l l s , dr i l l bi t s i ze and t ype, equi pment st abi l i zer s, and any equi pment t hat wi l l i mpact t he qual i t y of t he wor k. The mi x desi gns f or t he CLSM l ow- mobi l i t y sanded por t l and cement gr out s shal l al so be i ncl uded i n t he submi t t al . I ncl uded i n t he Wor k Pl an shal l be cal i br at i on met hods f or gages, f l ow met er s, and head l oss pl ot s at var i ous pr essur es and f l ow r at es f or t he gr out i ng syst em, and any addi t i onal equi pment det ai l s r equest ed by t he COR. The gener al wor k sequences and pr ocedur es f or al l aspect s of dr i l l i ng, f l ushi ng, and gr out i ng shal l be i ncl uded i n t he Wor k Pl an. Al so i ncl uded i n t he Wor k Pl an shal l be gener al gui del i nes and pr ocedur es f or i dent i f y i ng and i sol at i ng zones of gr out t ake and pr ocedur es t o be f ol l owed i n t hi ckeni ng and t hi nni ng mi xes, t he means of pr ovi di ng t hi cker or t hi nner mi xes expedi t i ousl y t o t he gr out hol e, and t he pr ocedur es used t o cont r ol gr out mobi l i t y and mi ni mi ze wast ed gr out . The Wor k Pl an shal l i ncl ude a det ai l ed descr i pt i on of gr out / CLSM cont ai nment means and met hods and mat er i al s t he Cont r act or wi l l use t o pr event gr out f r om seepi ng or spi l l i ng i nt o t he l ake, i ncl udi ng any cont ai nment mat er i al s or spi l l pr event i on. Gr out ent er i ng t he l ake i s consi der ed a wat er qual i t y v i ol at i on, see sect i on 01 57 20. 03 03 ENVI RONMENTAL PROTECTI ON FOR

WI SCONSI N.

3. 1. 4 Gr out Hol e Layout

The Cont r act or shal l submi t not l ess t han 30 days pr i or t o t he st ar t of dr i l l i ng, a gr out hol e l ayout i n pl an and sect i on t hat shal l pr esent t he r ecommended l ocat i ons and dept hs of al l gr out and ver i f i cat i on hol es.

3. 2 EQUI PMENT

3. 2. 1 Gener al

Al l dr i l l i ng and gr out i ng equi pment used shal l be of a t ype, capaci t y and mechani cal condi t i on sui t abl e f or per f or mi ng t he wor k, as det er mi ned by t he COR. The power and equi pment and t he l ayout t her eof shal l meet al l appl i cabl e r equi r ement s of l ocal , St at e, and Feder al r egul at i ons and codes, bot h saf et y and ot her wi se.

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3. 2. 2 Dr i l l i ng Equi pment

Dr i l l i ng equi pment shal l be sui t abl e f or oper at i on on t he nar r ow br eakwat er cap sur f ace and shal l be oper at ed usi ng onl y ai r and/ or wat er as dr i l l i ng f l ui d. St andar d pneumat i c por t abl e dr i l l s of t he r ot ar y per cussi on t ype or di amond r ot ar y shal l be used t o per f or m t he dr i l l i ng as speci f i ed i n par agr aph GROUT HOLES. Di esel or gasol i ne oper at ed equi pment shal l not be used on t he br eakwat er ; however di esel - power ed ai r compr essor s l ocat ed on t he Cont r act or ' s f l oat i ng pl ant ar e per mi t t ed. The Cont r act or shal l pr event t he di schar ge of oi l s , hydr aul i c f l ui d, or any ot her non- wat er l i qui ds i nt o t he l ake i n t he cour se of dr i l l i ng and gr out i ng. The dr i l l i ng equi pment shal l be of conf i gur at i on, s i ze and wei ght t hat wi l l not damage t he br eakwat er st r uct ur e. Lake wat er may be used as a dr i l l i ng f l ui d.

Suppl i es shal l i ncl ude al l bi t s, dr i l l r ods, hoses, t ool s, casi ng, pi pi ng, pumps, ot her equi pment , compr essed ai r , wat er , and power t o accompl i sh t he r equi r ed dr i l l i ng. Al l dr i l l i ng r i gs and pumps shal l be equi pped wi t h pr essur e gages.

3. 2. 2. 1 Dr i l l i ng Condi t i ons

The dr i l l i ng equi pment f or t he gr out hol es shal l be capabl e of dr i l l i ng t hr ough at l east 12 f eet of concr et e and r ock. The l ogi st i cs of t he wor k ar ea ar e such t hat t he cr own of t he st r uct ur e i s f l at and uneven concr et e t hat i s over 75- year s ol d, and t he t oe bl ocks ar e mor e nar r ow and weat her ed t han t he cr own. The concr et e i ncl udes st eel r ei nf or cement t hat i s par t i al l y exposed, but i s not al ways exposed enough t o v i sual l y det er mi ne t he l ocat i on, nor i s i t spaced r egul ar l y enough t o v i sual l y conf i r m l ocat i ons t o avoi d encount er i ng t hem dur i ng dr i l l i ng. Ther e may al so be wood pr esent beneat h t he concr et e. The Cont r act or may use a met al det ect or or magnet omet er of some ki nd t o det er mi ne f i nal l ocat i ons of gr out hol es, i f dr i l l i ng t hr ough r ei nf or cement i s l i kel y t o i mpede dr i l l i ng pr ogr ess. Ther e i s l i kel y t o be a voi d beneat h t he cap and concr et e shoul der f r om a f ew i nches up t o sever al f eet . Advance dr i l l hol es at l east 2- f eet i nt o f i l l mat er i al beneat h t he cap beyond any voi d space encount er ed.

3. 2. 3 Gr out i ng Equi pment

3. 2. 3. 1 Gr out Pl ant

Each gr out pl ant shal l be capabl e of suppl y i ng, mi xi ng, st i r r i ng and pumpi ng t he gr out and addi t i ves, t o t he sat i sf act i on of t he Cont r act i ng Of f i cer Repr esent at i ve. The pl ant shal l have a mi ni mum capaci t y of 30 cubi c f eet of gr out i nj ect ed at a pumpi ng pr essur e not gr eat er t han 40 psi measur ed at t he pl ant and shal l have t he capabi l i t y of pumpi ng at cont r ol l ed and consi st ent r at es f r om 1 t o 10 cubi c f eet per mi nut e. The gr out pl ant s shal l be mai nt ai ned at al l t i mes and any gr out hol e t hat i s l ost or damaged due t o mechani cal f ai l ur e of equi pment or i nadequacy of gr out suppl y shal l be r epl aced by anot her hol e, dr i l l ed by t he Cont r act or at no addi t i onal cost t o t he Gover nment . The amount of gr out i ng equi pment shal l be as necessar y t o per f or m t he wor k speci f i ed her ei n. The t ype t o be f ur ni shed shal l i ncl ude, but need not be l i mi t ed t o t he f ol l owi ng:

a. A pump capabl e of gener at i ng pr essur es up t o 40 psi measur ed at t he pl ant whi l e pumpi ng f r om 1 up t o 10 cubi c f eet per mi nut e.

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b. A mechani cal t ype gr out mi xer havi ng a mi ni mum dr um capaci t y of appr oxi mat el y 10 cubi c f eet . The gr out mi xer s shal l be capabl e of ef f ect i vel y mi xi ng sanded pea gr avel and por t l and cement gr out havi ng wat er t o cement r at i os of 0. 5: 1 t o 2: 1 measur ed by wei ght .

c. A mechani cal l y agi t at ed st or age t anks capabl e of agi t at i ng and hol di ng i n suspensi on al l sol i d mat t er cont ai ned i n t he gr out .

d. A mi ni mum of 3 ( t hr ee) gr out header s wi t h cont r ol val ves and a pr essur e t r ansducer and gage wi t h pr ot ect or f or each, i f i ncl uded i n t he Wor k Pl an. I f i ncl uded i n t he Wor k Pl an, cont r ol val ves shal l be connect ed t o t he header . The header shal l be j oi ned di r ect l y t o t he r i ser pi pe or gr out pi pe at t he hol e by means of a qui ck connect or uni on.

e. A separ at e wat er pump and/ or st or age t ank or sui t abl e sour ce of c l ean auxi l i ar y wat er f or use i n washi ng and f l ushi ng oper at i ons.

f . A wat er met er gr aduat ed i n cubi c f eet and t ent hs havi ng a di r ect r eadi ng t ot al i zer and capabl e of conveni ent l y bei ng set back t o zer o.

g. Such val ves, packer s, pr essur e gages, pr essur e hose, suppl y l i nes, and smal l t ool s as may be necessar y t o pr ovi de a cont i nuous suppl y of gr out at accur at el y cont r ol l ed pr essur es as speci f i ed. The i nsi de di amet er of t he pr essur e hose and gr out suppl y l i ne shal l be not l ess t han 1 i nch. An accur at el y cal i br at ed and ver i f i ed t hr ough Syst em Cal i br at i on Repor t s, hi gh pr eci s i on mast er pr essur e gage shal l be used t o check t he accur acy of al l gages used i n t he gr out i ng. Gages shal l be checked at l east ever y 24 hour s, or mor e f r equent l y i f t he COR so det er mi nes usi ng t he mast er gage. When def ect s ar e f ound, gr out i ng oper at i ons wi l l be st opped unt i l cal i br at i on of gages has been obt ai ned. The Cont r act or shal l mai nt ai n a r eady suppl y of packer s and ot her accessor i es appr opr i at e f or t he wor k. A suf f i c i ent suppl y of mechani cal packer s shal l be pr ovi ded f or t he pur pose of pr event i ng debr i s f r om ent er i ng or gr out escapi ng t he gr out hol es and t o seal open hol es awai t i ng gr out i ng.

h. Means of ver i f y i ng accur at el y and r out i nel y t hat gr out component s have been mi xed cor r ect l y and compl et el y.

i . A means of measur i ng quant i t i es of al l mat er i al s used i n gr out i ng oper at i ons, i ncl udi ng component s of gr out i nj ect ed and wast ed.

j . A means of el ect r oni cal l y r ecor di ng t he quant i t y and t i mes of gr out i ng.

3. 3 GROUT CONTAI NMENT

Gr out cont ai nment shal l be accompl i shed by a combi nat i on physi cal bar r i er s of t he cont r act or ' s desi gn on bot h l akewar d and har bor si des of t he br eakwat er . As a mi ni mum, pl ace an 18- i nch t hi ck l ayer of I DOT gr adat i on RR4 cr ushed dol omi t e or l i mest one, or s i mi l ar , f r om t he l ake el evat i on ( +/ - 1 f oot ) t o a dept h i n t he l ake 5 f eet al ong t he sl ope of t he st r uct ur e i n t he ar ea t o be gr out ed. Al so as a mi ni mum, i nst al l a cor r espondi ngl y s i zed appr oved t ur bi di t y s i l t f ence on t he i nt er i or / har bor s i de of t he st r uct ur e t o at l east t he same dept h. Pl ace cont ai nment measur es onl y al ong t he por t i ons of t he br eakwat er wher e i t i s ant i c i pat ed t hat gr out i ng wi l l be per mf or medper f or med wi t hi n 24 hour s and not mor e t han 25- f eet al ong t he br eakwat er i n ei t her di r ect i on upst at i on or

SECTI ON 35 31 25 Page 15 downst at i on on bot h s i des of t he st r uct ur e. Consul t weat her and l ake f or ecast s and adj ust pl acement of cont ai nment measur es t hat mi ght be damaged or r ender ed i nef f ect i ve bef or e gr out i ng oper at i ons i n t hose ar eas ar e possi bl e because of weat her . Addi t i onal l y, t he Cont r act or shal l adj ust t he gr out mi xes and pump r at es i mmedi at el y i f i t i s det er mi ned t hat t he gr out i s t oo t hi n t o be cont ai ned by t he measur es t aken. Unl ess ot her wi se di r ect ed by t he COR, a maxi mum i nj ect i on of 6 cubi c yar ds of gr out per st age of gr out hol e shal l not be exceeded, ad gr out i ng wi l l be suspended i mmedi at el y i f gr out / CLSM i s obser ved i n t he wat er out si de t he cont ai nment bar r i er s.

3. 4 GROUT HOLE DRI LLI NG

3. 4. 1 Gener al

The gener al sequence of dr i l l i ng, shal l pr oceed as appr oved i n t he Dr i l l i ng and Gr out i ng Wor k Pl an, wi t hi n t he gui del i nes of t he par agr aphs of t hi s Par agr aphs of t hi s Sect i on ent i t l ed SEQUENCI NG AND SCHEDULI NG OF DRI LLI NG AND GROUTI NG or as di r ect ed by t he COR. Upon appr oval of t he COR, t he Cont r act or may dr i l l bot h t he l akewar d and har bor si de r ows of t he gr out hol es. The gr out hol es shal l be a mi ni mum of 6 i nches i n di amet er .

Gr out hol es shal l be dr i l l ed t hr ough t he concr et e cap, t he t hi ckness of whi ch var i es, but i s not expect ed t o be mor e t han 6 f eet , and dr i l l i ng shal l cont i nue t o a dept h of 10 f eet bel ow t he t op of t he cap of t he st r uct ur e. Whenever pr act i cal , t he Cont r act or shal l dr i l l suf f i c i ent gr out hol es ahead of t i me such t hat t her e ar e enough gr out hol es r emai ni ng ungr out ed t o occupy t he shi f t ' s gr out i ng oper at i ons i n a cont i nuous manner .

I f necessar y, spl i t spaced hol es shal l be dr i l l ed at t he l ocat i ons and i n t he sequence di r ect…