W912EP18B0014_Amendment_0002.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)

30-105-04 EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

HORSESHOE COVE MAINTENANCE DREDGING, 6-FOOT PROJECT, ENTRANCE CHANNEL AND TURNING BASIN, DIXIE COUNTY, FLORIDA

A. SEE CONTINUATION SHEET FOR AMENDMENT DETAILS.

B. THE PROPOSAL DUE DATE REMAINS UNCHANGED @ 06 NOVEMBER 2018 AT 2:00 PM, LOCAL TIME.

ALL OTHER TERMS AND CONDITIONS REMAIN UNCHANGED.

1. CONTRACT ID CODE PAGE OF PAGES

1 22

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

16C. DATE SIGNED

BY

16B. UNITED STATES OF AMERICA 15C. DATE SIGNED 15B. 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 W912EP18B0014

X 9B. DATED (SEE ITEM 11)

05-Oct-2018

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 is extended, X 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

02-Nov-2018

CODE

USA ENGINEER DISTRICT, JACKSONVILLE

CONTRACTING DIVISION

701 SAN MARCO BLVD

JACKSONVILLE FL 32207-8175

W912EP 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODE CODE

EMAIL: TEL:

SF 30 CONTINUATION SHEET

Horseshoe Cove, Maintenance Dredging 6-foot Project, Dixie County, Entrance Channel and Turning Basin

W912EP18B0014 2 Amendment 0002

SUMMARY OF CHANGES

1. SPECIFICATIONS:

DELETE Section 00010A and REPLACE with the attached revised Section 00010A.

2. DRAWINGS:

No change to drawings.

(End of Summary of Changes)

DELETE Section 35 20 23 and REPLACE with the attached revised Section 32 20 23.

SECTION 00010A

LINE ITEMS AND PRICING SCHEDULE

HORSESHOE COVE, MAINTENANCE DREDGING

6-FOOT PROJECT, DIXIE COUNTY, ENTRANCE

CHANNEL AND TURNING BASIN

LINE ITEM DESCRIPTION QUANTITY UNIT UNIT PRICE TOTAL

BASE STA. 100+00 TO STA. 183+00

0001 MOBILIZATION AND DEMOBILIZATION 1 JOB $______________

0002 REGROUP PARTNERING MEETING 2 $______________

0003 EXCAVATION, UNCLASSIFIED 65,000

EACH $____________

CUBIC YARD $____________ $______________

ENTRANCE CHANNEL STA. 100+00 TO STA.

183+00, PLUS 1 FT ALLOWABLE OVERDEPTH

(ESTIMATED QUANTITY, SEE NOTE 1)

TURBIDITY MONITORING 1 JOB $______________

0005 ENVIRONMENTAL SPECIES OBSERVERS 1 JOB $______________

0006 BIRD MONITORING 60 DAY $____________ $______________

(ESTIMATED QUANTITY, SEE NOTE 4)

TOTAL (LINE ITEMS 0001 THRU 0006) $______________

OPTION A STA. 183+00 TO STA. 190+73.6

0007 EXCAVATION, UNCLASSIFIED 33,000 CUBIC YARD $____________ $______________

ENTRANCE CHANNEL STA. 183+00 TO STA.

190+73.6, PLUS 1 FT ALLOWABLE OVERDEPTH

(ESTIMATED QUANTITY, SEE NOTE 1)

0008 TURBIDITY MONITORING 1 JOB $______________

0009 ENVIRONMENTAL SPECIES OBSERVERS 1 JOB $______________

0010 BIRD MONITORING 35 DAY $____________ $______________

(ESTIMATED QUANTITY, SEE NOTE 4)

TOTAL OPTION A (LINE ITEMS 0007 THRU 0010) $______________

TOTAL BASE + OPTION A (LINE ITEMS 0001 THRU 0010) $______________

NOTES: (1) THE TOTAL QUANTITY SHOWN FOR EACH EXCAVATION CLIN INCLUDES REQUIRED DEPTH, ALLOWABLE OVERDEPTH, AND SHOALING ESTIMATED TO OCCUR BETWEEN THE DATES OF SURVEYS SHOWN ON THE DRAWINGS AND ACTUAL DREDGING. THE CONTRACTOR SHALL NOT PERFORM WORK IN EXCESS OF THE TOTAL ESTIMATED QUANITITY GIVEN FOR EACH CLIN WITHOUT PRIOR APPROVAL OF THE CONTRACTING OFFICER. THE CONTRACTOR SHALL NOTIFY THE CONTRACTING OFFICER AT LEAST ONE WEEK PRIOR TO THE ANTICIPATED DATE THAT THE ESTIMATED QUANTITY MAY

BE EXCEEDED.

(2) ALL BIDS MUST BE FOR THE ENTIRE WORK AND MUST HAVE EACH BLANK SPACE COMPLETED.

(3) FAILURE TO COMPLETE AND RETURN ALL REQUIRED SUBMISSIONS (SF 1442, SECTION 00010A, SECTION 00101 AND BID GUARANTEE) COULD RENDER YOUR BID NON-RESPONSIVE. SEE PARAGRAPH 999.214-4018 OF SECTION 00100. SEE

CLAUSE 52.214-18 PREPARATION OF BIDS--CONSTRUCTION OF SECTION 00100.

(4) THIS LINE ITEM IS FOR BIDDING PURPOSES ONLY. ACTUAL QUANTITIES MAY DIFFER FROM ESTIMATED QUANTITIES.

THIS LINE ITEM IS NOT SUBJECT TO THE VARIATION IN ESTIMATED QUANTITIES CLAUSE, AND PAYMENT WILL ONLY BE

MADE FOR ACTUAL DAYS MONITORING IS PERFORMED.

W912EP-18-B-0014 00010A-1 Amendment 0002

Hor seshoe Cove, Mai nt enance Dr edgi ng, 6- Foot Pr oj ect Di x i e Count y, Ent r ance Channel and Tur ni ng Basi n

SECTI ON TABLE OF CONTENTS

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

SECTI ON 35 20 23

DREDGING

PART 1 GENERAL

1. 1 SCOPE

1. 2 REFERENCES

1. 3 SUBMI TTALS

1. 4 DREDGI NG RESTRI CTI ONS

1. 4. 1 Or der of Wor k

1. 4. 2 Tr anspor t at i on of Mat er i al

1. 5 SPECI AL I NSTRUCTI ONS

1. 5. 1 Debr i s Removal

1. 5. 2 I nsi t u Rock

1. 6 PUMPI NG OF BI LGES

1. 7 HI STORI CAL PERI OD SHI PWRECK SI TES

1. 8 UTI LI TY CROSSI NGS

1. 8. 1 Gener al

1. 9 PERMI TS

1. 10 FUEL OI L TRANSFER OPERATI ONS

1. 11 SI GNAL LI GHTS

1. 12 NOTI CE TO MARI NERS - - DREDGI NG CONTRACTS

1. 13 FI NAL CLEANUP

1. 14 WORK VI OLATI ONS

1. 15 NATI ONAL DREDGI NG QUALI TY MANAGEMENT PROGRAM SYSTEM ( HOPPER

DREDGES AND DUMP SCOWS)

1. 15. 1 Syst em Requi r ement s

PART 2 PRODUCTS

2. 1 FLASHBOARD

PART 3 EXECUTI ON

3. 1 NOTI FI CATI ON OF COAST GUARD

3. 1. 1 Navi gat i on Ai ds

3. 1. 2 Dr edgi ng Ai ds

3. 2 WORK AREA

3. 2. 1 Access

3. 2. 2 Pr ot ect i on of Exi st i ng Wat er ways

3. 2. 3 Adj acent Pr oper t y and St r uct ur es

3. 2. 4 Subaqueous Cabl e Cr ossi ngs

3. 3 DI SPOSAL OF EXCAVATED MATERI AL

3. 3. 1 Gener al

3. 3. 2 Upl and Di sposal Ar ea

3. 3. 2. 1 Mat er i al Pl acement

3. 3. 2. 2 Maxi mum Hei ght of Dr edged Mat er i al s

3. 3. 2. 3 Di sposal Ar ea Dr ai nage

3. 3. 2. 4 Exi st i ng Wei r s

SECTI ON 35 20 23 Page 1 W912EP-18-B-0014 Amendment 0002

3. 3. 2. 5 Di ke I nspect i on

3. 3. 2. 6 Upl and Di sposal Ar ea/ Wei r Oper at i ons

3. 3. 2. 7 Over l and Pi pel i ne Access

3. 3. 2. 8 Exi st i ng Out f al l Pi pes

3. 3. 3 Bar ges

3. 3. 4 Pl aci ng of Dr edged Mat er i al

3. 3. 5 Dr edge Pi pel i nes

3. 3. 5. 1 Dr edge Di schar ge Pi pel i ne

3. 3. 5. 2 Submer ged Pi pel i ne

3. 3. 5. 3 Fl oat i ng Pi pel i ne

3. 3. 6 Boost er Pumps

3. 3. 7 Mi spl aced Mat er i al s

3. 4 REQUI RED DEPTH, ALLOWABLE OVERDEPTH, AND SI DE SLOPES

3. 4. 1 Requi r ed Dept h

3. 4. 2 Al l owabl e Over dept h

3. 4. 3 Si de Sl opes

3. 4. 4 Excessi ve Dr edgi ng

3. 4. 5 Ar eas t o be Dr edged

3. 4. 6 Accept ance Sect i ons

3. 5 SURVEYS

3. 5. 1 Gener al

3. 5. 2 Cont r act or Repr esent at i ve

3. 5. 3 Ti de Dat a

3. 5. 3. 1 Real Ti me Ki nemat i c ( RTK) GPS

3. 5. 3. 2 Ki nemat i c Ti dal Dat um

3. 6 I NSPECTI ON

3. 6. 1 Qual i t y Assur ance Repr esent at i ve ( QAR)

3. 6. 2 Fai l ur e t o Compl y

3. 7 FI NAL EXAMI NATI ON AND ACCEPTANCE

3. 7. 1 Fi nal Exami nat i on of Wor k

3. 7. 2 Bed Level i ng

3. 7. 3 Bed Level i ng - Repor t i ng and Document i ng

3. 7. 4 Fi nal Accept ance

3. 8 SHOALI NG

3. 9 CONTI NUI TY OF WORK

3. 10 NOI SE CONTROL

3. 11 DREDGE CERTI FI CATI ON

3. 12 GENERAL DREDGI NG SAFETY REQUI REMENTS

3. 12. 1 Cer t i f i cat i on of At t endant and Auxi l i ar y Pl ant

3. 12. 2 Mi ni mum Tow- Boat Requi r ement s

3. 13 CONSTRUCTI ON FORMS AND DETAI LS

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

SECTI ON 35 20 23 Page 2

SECTI ON 35 20 23

DREDGING

PART 1 GENERAL

1. 1 SCOPE

The wor k cover ed by t hi s sect i on consi st s of f ur ni shi ng al l l abor , mat er i al s, and equi pment , and per f or mi ng al l excavat i on and di sposal of al l mat er i al as speci f i ed her ei n or i ndi cat ed on t he dr awi ngs. Thi s scope al so i ncl udes al l necessar y measur es f or pr ot ect i on of t he envi r onment .

Envi r onment al pr ot ect i on r equi r ement s under t hi s cont r act ar e as i mpor t ant t o over al l compl et i on of t he wor k as ot her t echni cal aspect s. Fai l ur e t o meet t he r equi r ement s of t hese speci f i cat i ons f or envi r onment al pr ot ect i on may r esul t i n wor k st oppages or t er mi nat i on f or def aul t . No par t of t he t i me l ost due t o any such wor k st oppages shal l be made t he subj ect of c l ai ms f or ext ensi ons of t i me or f or excess cost s or damages by t he Cont r act or . I f t he Cont r act or f ai l s or r ef uses t o pr ompt l y r epai r any damage caused by v i ol at i on of t he pr ovi s i ons of t hese speci f i cat i ons, t he Cont r act i ng Of f i cer may have t he necessar y wor k per f or med and char ge t he cost t her eof t o t he Cont r act or .

1. 2 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.

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

EM 385- 1- 1 Saf et y and Heal t h Requi r ement s Manual

EM 1110- 1- 1000 ( 2015) Phot ogr ammet r i c and Li DAR Mappi ng

EM 1110- 1- 1002 ( 2012) Sur vey Mar ker s and Monument at i on

EM 1110- 1- 1003 ( 2011) NAVSTAR Gl obal Posi t i oni ng Syst em Surveying

EM 1110- 1- 2909 ( 2012) Geospat i al Dat a and Syst ems

EM 1110- 2- 1003 ( 2013) Hydr ogr aphi c Sur veyi ng

FLORI DA BOARD OF PROFESSI ONAL SURVEYORS AND MAPPERS ( FBPSM)

FBPSM Mi ni mum Techni cal St andar ds, Chapt er s 177, 472, 61G17

TRI - SERVI CE STANDARDS ( TSS)

TSS ( 2006) A/ E/ C CADD St andar ds

SECTI ON 35 20 23 Page 3

1. 3 SUBMITTALS

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

Not i ce of I nt ent t o Dr edge

Pr i or t o commencement of wor k on t hi s cont r act , t he Cont r act or shal l not i f y t he Commander , Sevent h Coast Guar d Di st r i c t of hi s i nt ended oper at i ons t o dr edge and r equest t hat i t be publ i shed i n t he Local Not i ce t o Mar i ner s. Thi s not i f i cat i on must be gi ven i n suf f i c i ent t i me so t hat i t appear s i n t he Not i ce t o Mar i ner s at l east t wo weeks pr i or t o t he commencement of t hi s dr edgi ng oper at i on. A copy of t he not i f i cat i on shal l be pr ovi ded t o t he Cont r act i ng Of f i cer .

Rel ocat i on of Navi gat i on Ai ds

The Cont r act or shal l not r emove, change t he l ocat i on of , obst r uct , wi l l f ul l y damage, make f ast t o, or i nt er f er e wi t h any ai d t o navi gat i on. Wi t hi n 7 cal endar days f ol l owi ng r ecei pt of Not i ce of Awar d, t he Cont r act or shal l not i f y t he Commander , Sevent h Coast Guar d Di st r i c t , Mi ami , Fl or i da, of hi s pl an t o dr edge adj acent t o any ai ds whi ch r equi r e r el ocat i on t o f aci l i t at e dr edgi ng. The not i f i cat i on shal l be sent v i a Fax t o 305- 415- 6757, ATTN: Mr . Gene St r at t en. Thi s not i f i cat i on shal l be i mmedi at el y f ol l owed by a f or mal wr i t t en r equest wi t h a copy t o t he Cont r act i ng Of f i cer . The Cont r act or shal l al so cont act t he U. S.

Coast Guar d, 305- 415- 6750, f or i nf or mat i on concer ni ng t he posi t i on t o whi ch t he ai ds wi l l be r el ocat ed.

Pr e- Exi st i ng Condi t i ons; G|RO

The cont r act or shal l pr ovi de a exi st i ng condi t i ons sket ch and phot ogr aphi c document at i on of t he upl and pi pel i ne access ar ea t o be used by t he Cont r act or and al l af f ect ed st r uct ur es. Sket ch shal l i ncl ude at l east l ocat i on of any st r uct ur e wi t hi n access ar ea such as access r oads, r amps, wal kover s, f ences, shower s, l i mi t s of paver s as wel l as exi st i ng veget at i on.

The Cont r act or shal l pr ovi de an addi t i onal sket ch showi ng al t er at i ons f or each access ar ea t o be i mpact ed by const r uct i on act i v i t i es. Al so i ncl ude f i nal r est or at i on pl ans of t he access ar ea upon compl et i on of wor k.

Wei r I nspect i on Repor t ; G|RO

The cont r act or shal l pr ovi de bef or e commencement of t he dr edgi ng oper at i ons a r epor t of t he exi st i ng wei r st r uct ur es condi t i on.

Cont r act or shal l pr ovi de t he pr of essi onal engi neer qual i f i cat i ons. See par agr aph 3. 3. 2. 4 bel ow.

SD- 02 Shop Dr awi ngs

SECTI ON 35 20 23 Page 4

Dr ag Bar ; G|RO

Submi t dr awi ngs and one phot ogr aph showi ng dr ag bar equi pment used f or f i nal l evel i ng wor k i ndi cat ed i n t he par agr aph FI NAL EXAMI NATI ON AND ACCEPTANCE bel ow.

Accept ance Sect i ons Pl an; G|RO

Submi t an accept ance sect i ons pl an f or appr oval by t he Gover nment pr i or t o commencement of wor k. See subpar agr aph " Accept ance Sect i ons" i n par agr aph REQUI RED DEPTH, ALLOWABLE OVERDEPTH, AND SI DE SLOPES bel ow.

SD- 07 Cer t i f i cat es

Hi st or i cal Per i od Shi pwr eck Si t es

The Cont r act or shal l i mmedi at el y not i f y t he Cont r act i ng Of f i cer i f any shi pwr eck, ar t i f act , or ot her obj ect s of ant i qui t y t hat have sci ent i f i c or hi st or i cal val ue, or ar e of i nt er est t o t he publ i c, ar e di scover ed, l ocat ed, and/ or r ecover ed.

Surveys

The Cont r act or shal l gi ve 10 days advance not i ce, i n wr i t i ng, t o t he Cont r act i ng Of f i cer of t he need f or a pr e- dr edgi ng sur vey or af t er - dr edgi ng sur vey f or f i nal accept ance f or each accept ance section.

Dai l y/ Mont hl y Repor t of Oper at i ons

The Cont r act or shal l pr epar e on RMS and submi t one ( 1) har d copy of t he Dai l y Repor t of Oper at i ons, usi ng ei t her ENG For m No. 27A or ENG For m No. 4267, f or each dr edge and/ or unl oader wor ki ng.

Thi s r epor t shal l be submi t t ed on a dai l y basi s and not i n gr oups ( gr oups = mul t i - days r epor t s packaged t oget her at one t i me) . I n addi t i on t o t he dai l y r epor t , t he Cont r act or shal l pr epar e a Mont hl y Repor t of Oper at i ons f or each mont h or par t i al mont h' s wor k on ei t her ENG For m No. 27A or ENG For m No. 4267. The mont hl y r epor t shal l be submi t t ed on or bef or e t he 7t h of each mont h, consol i dat i ng t he pr evi ous mont h' s wor k. Upon compl et i on of t he j ob, t he Cont r act or shal l submi t a consol i dat ed j ob r epor t , combi ni ng t he mont hl y r epor t s. The Cont r act or shal l di st r i but e one copy of each r epor t t o t he Di st r i c t Engi neer ; ATTN:

CESAJ- EN- C; U. S. Ar my Engi neer Di st r i c t , Jacksonvi l l e, P. O. Box 4970; Jacksonvi l l e, Fl or i da 32232- 0019. Repor t s shal l be submi t t ed on a mont hl y basi s wi t h dai l y r epor t s accompanyi ng t he mont hl y r epor t and j ob r epor t .

Addi t i onal l y, one copy of t he f or m( s) shal l be mai nt ai ned by t he Cont r act or on t he dr edge( s) f or t he Cont r act i ng Of f i cer ' s i nspect i on pur pose. Fur t her i nst r uct i ons on t he pr epar at i on of t he r epor t s wi l l be f ur ni shed at t he Pr econst r uct i on Conf er ence.

Mi spl aced Mat er i al

The Cont r act or shal l not i f y t he U. S. Coast Guar d Mar i ne Saf et y Of f i ce of any mi spl aced mat er i al as st at ed i n t he Cl ause OBSTRUCTI ON OF NAVI GABLE WATERWAYS of Sect i on 00700 CONTRACT

SECTI ON 35 20 23 Page 5

CLAUSES i n Vol ume 1.

Decl ar at i on of I nspect i on f or Ref uel i ng

Ref er t o par agr aph FUEL OI L TRANSFER OPERATI ONS bel ow f or submittal.

SD- 11 Cl oseout Submi t t al s

Post Const r uct i on Condi t i ons; G|RO

The Cont r act or shal l pr ovi de phot ogr aphi c document at i on of t he post const r uct i on condi t i ons of t he upl and pi pel i ne access ar ea.

1. 4 DREDGI NG RESTRI CTI ONS

1. 4. 1 Or der of Wor k

Ther e i s no speci f i c or der of wor k f or t hi s pr oj ect . The dr edgi ng per f or med by al l dr edges shal l be cont i nuous wi t hi n r eaches appr oved by t he Cont r act i ng Of f i cer .

1. 4. 2 Tr anspor t at i on of Mat er i al

Wat er and dr edge mat er i al shal l not be per mi t t ed t o over f l ow or spi l l out of bar ges or hopper dr edges dur i ng t r anspor t t o t he di sposal s i t e.

1. 5 SPECI AL I NSTRUCTI ONS

1. 5. 1 Debr i s Removal

Debr i s r emoved f r om t he dr edged mat er i al s shal l be di sposed of appr opr i at el y at a sol i d wast e di sposal f aci l i t y appr oved by t he Cont r act i ng Of f i cer ' s Repr esent at i ve.

1. 5. 2 I nsi t u Rock

Dr edgi ng of i nsi t u r ock i s not r equi r ed; but i f encount er ed, t he l ocat i on and ext ent of any i nsi t u r ock above gr ade or r equi r ed dept h shal l be r epor t ed t o t he Cont r act i ng Of f i cer .

1. 6 PUMPI NG OF BI LGES

Cont r act or s ar e war ned t hat pumpi ng oi l or bi l ge wat er cont ai ni ng oi l i nt o navi gabl e wat er s, or i nt o ar eas whi ch woul d per mi t t he oi l t o f l ow i nt o such wat er s, i s pr ohi bi t ed by Sect i on 13 of t he Ri ver and Har bor Act of 1899, appr oved 3 Mar ch 1899 ( 30 St at . 1152; 33 U. S. C. 407) . Vi ol at i on of t hi s pr ohi bi t i on i s subj ect t o t he penal t i es under t he r ef er enced Act s.

1. 7 HI STORI CAL PERI OD SHI PWRECK SI TES

I f any shi pwr eck, ar t i f act , or ot her obj ect s of ant i qui t y t hat have sci ent i f i c or hi st or i cal val ue, or ar e of i nt er est t o t he publ i c, ar e di scover ed, l ocat ed, and/ or r ecover ed, t he Cont r act or acknowl edges t hat :

a. The si t e( s) , ar t i c l es, or ot her mat er i al s ar e t he pr oper t y of t he St at e of Fl or i da, wi t h t i t l e vest ed i n t he Depar t ment of St at e, Di v i s i on of Hi st or i cal Resour ce; and t hat , SECTI ON 35 20 23 Page 6

b. Cont r act or shal l i mmedi at el y not i f y t he Cont r act i ng Of f i cer .

1. 8 UTI LI TY CROSSI NGS

1. 8. 1 General

I t i s t he Cont r act or ' s r esponsi bi l i t y t o i nvest i gat e t he l ocat i on of al l ut i l i t y cr ossi ngs. The Cont r act or shal l t ake pr ecaut i ons agai nst damages whi ch mi ght r esul t f r om hi s oper at i ons i n t he v i c i ni t y of t he ut i l i t y cr ossi ngs. I f any damage occur s as a r esul t of hi s oper at i ons, t he Cont r act or wi l l be r equi r ed t o suspend dr edgi ng unt i l t he damage i s r epai r ed and appr oved by t he Cont r act i ng Of f i cer . Cost s of such r epai r s and downt i me of t he dr edge and at t endant pl ant shal l be at t he Cont r act or ' s expense.

1. 9 PERMITS

The Cont r act or ' s at t ent i on i s di r ect ed t o t he Cl ause PERMI TS AND RESPONSI BI LI TI ES of Sect i on 00700 CONTRACT CLAUSES i n Vol ume 1 and t he par agr aph PERMI TS AND AUTHORI ZATI ONS of Sect i on 01 57 20 ENVI RONMENTAL

PROTECTION.

1. 10 FUEL OI L TRANSFER OPERATI ONS

I n accor dance wi t h U. S. Coast Guar d r egul at i ons ( 33 CFR 156. 120) , coupl i ngs used i n f uel oi l t r ansf er oper at i ons on any vessel wi t h a capaci t y of 250 or mor e bar r el s of oi l shal l be ei t her a bol t ed or f ul l - t hr eaded connect i on; or a qui ck- connect coupl i ng appr oved by t he Commandant ; or an aut omat i c back- pr essur e shut of f nozzl e used t o f uel t he vessel . An execut ed f uel oi l t r ansf er ( Decl ar at i on) f or m si gned by t he t anker oper at or shal l be submi t t ed t o t he Cont r act i ng Of f i cer f or each r ef uel i ng oper at i on. The U. S. Coast Guar d shal l al so be not i f i ed pr i or t o any r ef uel i ng. A copy of t he Decl ar at i on of I nspect i on f or Ref uel i ng i s on t he web si t e i ndi cat ed i n t he par agr aph CONSTRUCTI ON FORMS AND DETAI LS bel ow.

1. 11 SI GNAL LI GHTS

The Cont r act or shal l di spl ay s i gnal l i ght s and conduct oper at i ons i n accor dance wi t h t he Gener al Regul at i ons of t he Depar t ment of t he Ar my and of t he Coast Guar d gover ni ng l i ght s and day s i gnal s t o be di spl ayed by t owi ng vessel s wi t h t ows on whi ch no s i gnal s can be di spl ayed, vessel s wor ki ng on wr ecks, dr edges, and vessel s engaged i n l ayi ng cabl es or pi pe or i n submar i ne or bank pr ot ect i on oper at i ons, l i ght s t o be di spl ayed on dr edge pi pe l i nes, and day s i gnal s t o be di spl ayed by vessel s of mor e t han 65 f eet i n l engt h moor ed or anchor ed i n a f ai r way or channel , and t he passi ng by ot her vessel s of f l oat i ng pl ant wor ki ng i n navi gabl e channel s, as set f or t h i n Commandant U. S. Coast Guar d I nst r uct i on M16672. 2, Navi gat i on Rul es: I nt er nat i onal - I nl and ( COMDTI NST M16672. 2) , or 33 CFR 81 Appendi x A ( I nt er nat i onal ) and 33 CFR 84 t hr ough 33 CFR 89 ( I nl and) as applicable.

1. 12 NOTI CE TO MARI NERS - - DREDGI NG CONTRACTS

Shoul d t he Cont r act or , dur i ng oper at i ons, encount er any obj ect s on t he channel bot t om whi ch coul d be a hazar d t o navi gat i on, t he Cont r act or shal l i mmedi at el y not i f y t he Cont r act i ng Of f i cer as t o t he l ocat i on of sai d obj ect and shal l pr ovi de any ot her per t i nent i nf or mat i on necessar y f or t he Cont r act i ng Of f i cer t o pr epar e and i ssue a Not i ce t o Mar i ner s.

SECTI ON 35 20 23 Page 7

1. 13 FI NAL CLEANUP

Fi nal c l eanup, as st at ed i n t he par agr aph COMMENCEMENT, PROSECUTI ON, AND COMPLETI ON OF WORK of Sect i on 00700 CONTRACT CLAUSES i n Vol ume 1, shal l i ncl ude t he r emoval of al l t he Cont r act or ' s pl ant and equi pment ei t her f or di sposal or r euse. Pl ant and/ or equi pment and/ or mat er i al s t o be di sposed of shal l onl y be di sposed i n a manner and at l ocat i ons appr oved by t he Cont r act i ng Of f i cer . Unl ess ot her wi se appr oved by t he Cont r act i ng Of f i cer , t he Cont r act or wi l l not be per mi t t ed t o abandon any equi pment i n t he di sposal ar ea or ot her ar eas adj acent t o t he wor ksi t e. Fai l ur e t o pr ompt l y r emove al l pl ant , pi pel i ne, equi pment , and mat er i al s upon compl et i on of t he dr edgi ng wi l l be consi der ed a del ay i n t he compl et i on of t he f i nal c l eanup and demobi l i zat i on wor k. I n such case, t he Gover nment wi l l exer ci se i t s r i ght as st at ed i n Cl ause DEFAULT ( FI XED- PRI CE CONSTRUCTI ON) of Sect i on 00700 CONTRACT CLAUSES i n Vol ume 1 t o r emove any pl ant and/ or equi pment and/ or mat er i al s at t he Cont r act or ' s expense. The cont r act or shal l l eave al l ar eas wi t hi n t he upl and pi pel i ne access ar eas equal t o or gr eat er t han t he condi t i on of t he s i t e pr i or t o const r uct i on upon compl et i on of t he project.

1. 14 WORK VI OLATI ONS

Wor k done i n v i ol at i on of t hese speci f i cat i ons or a ver bal or wr i t t en st op or der of t he Cont r act i ng Of f i cer wi l l be consi der ed as unsat i sf act or y pr ogr ess f or pur poses of pr ogr ess payment s i n accor dance wi t h Cl ause PAYMENTS UNDER FI XED- PRI CE CONSTRUCTI ON CONTRACTS of Sect i on 00700 CONTRACT CLAUSES i n Vol ume 1.

1. 15 NATI ONAL DREDGI NG QUALI TY MANAGEMENT PROGRAM SYSTEM ( HOPPER DREDGES

AND DUMP SCOWS)

1. 15. 1 Syst em Requi r ement s

See Sect i on 35 20 26. 03 NATI ONAL DREDGI NG QUALI TY MANAGEMENT PROGRAM SCOW - ULLAGE PROFI LE. However , i n t he event of NDQMP Syst em f ai l ur e ( not f ul l y oper at i onal ) , t he Cont r act or shal l not i f y t he Cont r act i ng Of f i cer and cont i nue t r acki ng usi ng ETS ( see par agr aph " El ect r oni c Tr acki ng Syst em ( ETS) f or Ocean Di sposal Vessel s" bel ow) f or up t o 48 hour s unt i l t he NDQMP Syst em i s f ul l y oper at i onal and i n use. I f , upon NDQMP Syst em f ai l ur e, t he Cont r act or cannot use ETS or cannot use t he NDQMP Syst em wi t hi n 48 hour s of f ai l ur e, al l dr edgi ng oper at i ons f or t he vessel shal l cease unt i l t he NDQMP Syst em i s f ul l y oper at i onal . Any del ays r esul t i ng f r om NDQMP Syst em f ai l ur e shal l be at t he Cont r act or ' s expense. When r equi r ed t o cal cul at e di spl acement , t he densi t y of wat er shal l be 64. 0 pounds per cubi c f oot or i t s met r i c equi val ent of 1025 ki l ogr ams per cubi c met er .

PART 2 PRODUCTS

2. 1 FLASHBOARD

The Cont r act or shal l pr ovi de appr oxi mat el y 300 boar d- f eet wi t h pi eces cut t o f i t t he wei r r i ser openi ngs r esul t i ng i n appr oxi mat el y 75 pi eces of t ongue and gr oove f l ashboar ds of t he f ol l owi ng di mensi ons: 4" x 6" x 4' +/ -

0. 5' . Fl ashboar ds shal l be No. 2 gr ade or bet t er Sout her n Pi ne l umber pr essur e pr eser vat i ve t r eat ed wi t h 2. 5 l bs/ cf CCA i n accor dance wi t h AWPA C2. Al l t ongue and gr oove f l ashboar ds must f i t wel l wi t h no bi ndi ng or excessi ve l ooseness. Exposed ar eas of wood t hat ar e cut af t er t r eat ment shal l r ecei ve a f i el d t r eat ment i n accor dance wi t h AWPA M4.

SECTI ON 35 20 23 Page 8

PART 3 EXECUTI ON

3. 1 NOTI FI CATI ON OF COAST GUARD

3. 1. 1 Navi gat i on Ai ds

Navi gat i on ai ds l ocat ed wi t hi n or near t he ar eas r equi r ed t o be dr edged wi l l be r emoved, i f necessar y, by t he U. S. Coast Guar d i n advance of dr edgi ng oper at i ons. The Cont r act or shal l not r emove, change t he l ocat i on of , obst r uct , wi l l f ul l y damage, make f ast t o, or i nt er f er e wi t h any ai d of navigation.

3. 1. 2 Dr edgi ng Ai ds

The Cont r act or shal l obt ai n appr oval f r om t he U. S. Coast Guar d f or al l buoys, dr edgi ng ai d mar ker s t o be pl aced i n t he wat er , and dr edgi ng ai d mar ker s af f i xed wi t h a l i ght pr i or t o t he i nst al l at i on. Dr edgi ng ai d mar ker s and l i ght s shal l not be col or ed or pl aced i n a manner t hat t hey wi l l obst r uct or be conf used wi t h navi gat i on ai ds.

3. 2 WORK AREA

The Cont r act or wi l l be per mi t t ed t o excl ude t he publ i c f r om t he wor k ar eas i n t he i mmedi at e v i c i ni t y of hi s dr edgi ng, t r anspor t i ng, and di sposal oper at i ons. The Cont r act or shal l pr event publ i c access t o t he di schar ge end of t he pi pel i ne. The Cont r act or shal l er ect , mai nt ai n, and move as necessar y, a r est r i c t i ve bar r i er ar ound t he di schar ge of t he hydr aul i c pi pel i ne. The bar r i er shal l be const r uct ed so as t o pr event t he publ i c f r om appr oachi ng t he di schar ge f r om any di r ect i on c l oser t han 40 f eet . The Cont r act or shal l post s i gns i n a conspi cuous l ocat i on wi t h t he wor di ng " DANGER - HI GH PRESSURE DI SCHARGE FROM DREDGE" . Enf or cement shal l be t he Cont r act or ' s r esponsi bi l i t y at no addi t i onal cost t o t he Gover nment . The enf or cement shal l be coor di nat ed wi t h l ocal enf or cement agenci es and wi l l be subj ect t o appr oval of t he Cont r act i ng Of f i cer . Addi t i onal l y, t he Cont r act or shal l pl ace a saf et y per son at t he di schar ge end of t he di sposal pi pel i ne. The saf et y per son shal l be pr esent at al l t i mes dur i ng di schar ge oper at i ons and wi l l mai nt ai n r adi o communi cat i on bet ween t he dr edge and t he di sposal oper at i on.

3. 2. 1 Access

The Cont r act or shal l be r esponsi bl e f or pr ovi di ng and mai nt ai ni ng access necessar y f or hi s equi pment and pl ant t o and f r om t he wor k s i t e, moor i ng ar ea, and di sposal ar ea. The Cont r act or shal l ascer t ai n t he envi r onment al condi t i ons whi ch can af f ect t he access such as c l i mat e, wi nds, cur r ent s, waves, dept hs, shoal i ng, and scour i ng t endenci es.

3. 2. 2 Pr ot ect i on of Exi st i ng Wat er ways

The Cont r act or shal l conduct hi s oper at i ons i n such a manner t hat mat er i al or ot her debr i s ar e not pushed out s i de of dr edgi ng l i mi t s or ot her wi se deposi t ed i n exi st i ng s i de channel s, basi ns, docki ng ar eas, or ot her ar eas bei ng ut i l i zed by vessel s. The Cont r act or wi l l be r equi r ed t o change hi s met hod of oper at i ons as may be r equi r ed t o compl y wi t h t he above r equi r ement s. Shoul d any bot t om mat er i al or ot her debr i s be pushed i nt o ar eas descr i bed above, as a r esul t of t he Cont r act or ' s oper at i ons, t he same must be pr ompt l y r emoved by and at t he expense of t he Cont r act or t o t he sat i sf act i on of t he Cont r act i ng Of f i cer .

SECTI ON 35 20 23 Page 9

3. 2. 3 Adj acent Pr oper t y and St r uct ur es

No dr edgi ng wi l l be per mi t t ed wi t hi n 25 f eet of any st r uct ur e. Any damage t o pr i vat e or publ i c pr oper t y or st r uct ur es r esul t i ng f r om t he di sposal or dr edgi ng oper at i ons shal l be r epai r ed pr ompt l y by t he Cont r act or at hi s expense. Any damage t o st r uct ur es as a r esul t of Cont r act or ' s negl i gence wi l l r esul t i n suspensi on of dr edgi ng and r equi r e pr ompt r epai r at t he Cont r act or ' s expense as a pr er equi s i t e t o t he r esumpt i on of dr edgi ng.

3. 2. 4 Subaqueous Cabl e Cr ossi ngs

The Cont r act or shal l be r esponsi bl e f or ver i f y i ng t he l ocat i ons and dept hs of al l ut i l i t y cr ossi ngs and t ake pr ecaut i ons agai nst damages whi ch mi ght r esul t f r om hi s oper at i ons, especi al l y t he s i nki ng of dr edge spuds and/ or anchor s i nt o t he channel bot t om, i n t he v i c i ni t y of ut i l i t y cr ossi ngs. I f any damage occur s as a r esul t of hi s oper at i ons, t he Cont r act or wi l l be r equi r ed t o suspend dr edgi ng unt i l t he damage i s r epai r ed and appr oved by t he Cont r act i ng Of f i cer . Cost s of such r epai r s and downt i me of t he dr edge and at t endant pl ant shal l be at t he Cont r act or ' s expense.

3. 3 DI SPOSAL OF EXCAVATED MATERI AL

3. 3. 1 General

Mat er i al excavat ed shal l be t r anspor t ed t o and deposi t ed i n t he di sposal ar ea desi gnat ed on t he dr awi ngs. The aver age di st ance t o whi ch t he mat er i al wi l l have t o be t r anspor t ed i s appr oxi mat el y 1. 9 st at ut e mi l es and t he maxi mum di st ance wi l l be appr oxi mat el y 2. 75 st at ut e mi l es. The mat er i al t o be excavat ed shal l be pl aced i n t he desi gnat ed Upl and Di sposal Ar ea accor di ng t o t he " Est i mat ed Dr edgi ng Quant i t i es" t abl e on Dr awi ng G- 03.

3. 3. 2 Upl and Di sposal Ar ea

3. 3. 2. 1 Mat er i al Pl acement

Dr edged mat er i al shal l be pl aced i n t he di sposal ar ea at a maxi mum di st ance f r om t he wei r s t o i nsur e suf f i c i ent set t l i ng t i me so t hat t he ef f l uent wi l l meet t he t ur bi di t y r equi r ement s speci f i ed i n Sect i on 01 57 25 TURBI DI TY AND DI SPOSAL MONI TORI NG. The dr edged mat er i al shal l be pl aced i n t he di sposal ar ea i n such a manner as t o not scour out or damage t he cr own and s i de s l opes of t he exi st i ng di kes. Damage t o di kes or scour i ng of t he cr own and si de s l opes shal l be r epai r ed by t he Cont r act or t o t hei r or i gi nal pr e- awar d condi t i on at no addi t i onal cost t o t he Gover nment . The Cont r act or shal l not cut i nt o or modi f y t he upl and di sposal s i t e di ke sect i on f or any r eason. I n t he event t hat t he cont r act or excavat es, cut s i nt o, or modi f i es t he upl and di sposal s i t e di ke, t he dr edgi ng oper at i ons shal l be i mmedi at el y suspended and r equi r e pr ompt r epai r of t he di ke as a pr er equi s i t e t o t he r esumpt i on of dr edgi ng.

3. 3. 2. 2 Maxi mum Hei ght of Dr edged Mat er i al s

Dr edged mat er i al s and/ or wat er shal l not be pl aced hi gher t han 2 f eet bel ow t he l owest poi nt on t he cont ai nment di ke of t he Upl and Di sposal Ar ea.

Pr i or t o any dr edgi ng or di sposal t he Cont r act or shal l sur vey t he cont ai nment di ke of t he Upl and Di sposal Ar ea t o ascer t ai n t he l owest poi nt of el evat i on on t he di ke cr est . The Cont r act or shal l const ant l y moni t or t he wat er hei ght whi l e pumpi ng t o ensur e t hat t hi s c l ear ance i s mai nt ai ned. However , t he Cont r act or may t empor ar i l y st ack dr edged mat er i al wi t hi n t he di sposal ar ea dur i ng t he dr edgi ng pr ocess pr ovi ded t hat mat er i al

SECTI ON 35 20 23 Page 10 i s not pl aced wi t hi n 20 f eet of any di ke. The Cont r act or may al so r el ocat e exi st i ng mat er i al wi t hi n t he Upl and Di sposal Ar ea t o f aci l i t at e di sposal oper at i ons. Mat er i al s deposi t ed i n t he di sposal ar ea above t he maxi mum hei ght or out s i de t he di sposal ar ea wi l l r esul t i n suspensi on of dr edgi ng oper at i ons and r equi r e t he r emoval of such mat er i al s as a pr er equi s i t e t o t he r esumpt i on of dr edgi ng. Upon compl et i on of dr edgi ng i f r equi r ed, degr ade and pl ace mat er i al wi t hi n t he Upl and Di sposal Ar ea t o t he el evat i on 2 f eet bel ow t he l owest poi nt of t he out er di ke cr est . Any degr adi ng or r emoval of such mat er i al shal l be at t he Cont r act or ' s expense.

Dr ai nage of ext er i or ar eas adj acent t o t he di ked di sposal ar ea shal l not be bl ocked or i mpai r ed i n any manner by t he Cont r act or ' s oper at i ons. The Cont r act or shal l excavat e and mai nt ai n di t ches necessar y t o pr event bl ocki ng or i mpai r i ng dr ai nage. The di t ches shal l be of adequat e number and si ze t o el i mi nat e al l bl ockage or i mpai r ment of dr ai nage adj acent t o t he di ked di sposal ar ea.

3. 3. 2. 3 Di sposal Ar ea Dr ai nage

The Cont r act or shal l , i f necessar y, excavat e and mai nt ai n di t ches t o dr ai n al l l ow ar eas i n t he dr edged mat er i al and di sposal ar ea t o t he wei r s. The di t ches shal l be of adequat e number and si ze t o el i mi nat e al l pondi ng of wat er i n t he dr edged mat er i al above t he el evat i on of t he wei r i nver t .

3. 3. 2. 4 Exi st i ng Wei r s

a. Bef or e commencement of dr edgi ng oper at i ons, a r egi st er ed Pr of essi onal Engi neer or someone havi ng a mi ni mum of f i ve year s of exper i ence i n cul ver t i nspect i on shal l cer t i f y t hat t he wei r st r uct ur es and wei r dr ai nage pi pes have suf f i c i ent st r uct ur al i nt egr i t y t o wi t hst and wat er and soi l pr essur e and not col l apse dur i ng dr edgi ng oper at i ons. The i nspect or shal l make t hi s cer t i f i cat i on by ent er i ng ( i . e. r obot i cs) and i nspect i ng t he i nt er i or sur f ace of t he wei r dr ai nage pi pes.

b. The exi st i ng wei r s shal l be oper at ed by t he Cont r act or t o cont r ol di schar ge of di sposal ar ea ef f l uent dur i ng di sposal and decant i ng oper at i ons. Access t o t he r i ser boar ds wi l l be pr ovi ded by t he Cont r act i ng Of f i cer ' s Repr esent at i ve.

c. The Cont r act or shal l i nst al l r i ser boar ds i n t he wei r s t o a cr est el evat i on whi ch pr oduces an ef f l uent qual i t y meet i ng t he t ur bi di t y r equi r ement s speci f i ed i n Sect i on 01 57 25 TURBI DI TY AND DI SPOSAL MONI TORI NG. The Cont r act or shal l wedge t he r i ser boar ds i n pl ace and seal t he end and bet ween- boar d j oi nt s as needed t o pr event soi l s l ur r y and t ur bi d wat er f r om passi ng t hr ough t he wei r s.

d. Upon compl et i on of di sposal oper at i ons, al l wei r s boar ds shal l be l ef t i n pl ace and t he Cont r act or shal l adj ust t he el evat i ons of t he cr est s t o pr ovi de f or compl et e dr ai nage wi t hout pondi ng of t he di sposal ar ea f or a mi ni mum of 15 days. The el evat i on adj ust ment t o t he wei r s shal l be t he same on al l wei r s i n t he di sposal ar ea. The wei r ' s r i ser boar ds shal l be r emoved one r ow at a t i me. The next r ow of boar ds shal l not be r emoved unt i l t he wat er l evel i s dr awn down t o not mor e t han one i nch above t he wei r s ' cr est . Thi s pr ocess shal l be cont i nued unt i l t he i nt er f ace wi t h t he suspended dr edged mat er i al i s r eached.

Af t er t he i nt er f ace i s r eached, t he Cont r act or shal l cont i nue t o i nspect t he di sposal ar ea unt i l compl et i on of hi s/ her wor k under t hi s cont r act , and he/ she shal l r emove anot her r ow of boar ds each t i me t he

SECTI ON 35 20 23 Page 11 mat er i al has consol i dat ed suf f i c i ent l y so t hat i t wi l l not f l ow f r om t he di sposal ar ea. The ef f l uent f r om t hi s f i nal dr ai nage f or el i mi nat i ng pondi ng shal l meet t he appl i cabl e r equi r ement speci f i ed i n Section 01 57 20 ENVI RONMENTAL PROTECTI ON and/ or Sect i on 01 57 25 TURBI DI TY AND DI SPOSAL MONI TORI NG. The Cont r act or shal l pr ovi de at l east hour l y i nspect i on of t he wei r s dur i ng f i nal dr ai nage of t he ar eas and r ai se t he wei r boar ds i f necessar y t o st op t he ef f l uent i f i t does not meet t he appl i cabl e r equi r ement s. Thi s i nspect i on shal l be at c l oser i nt er val s, i f necessar y, dur i ng per i ods of r ai n and when t he wat er l evel i s appr oachi ng t he i nt er f ace.

3. 3. 2. 5 Di ke I nspect i on

The Cont r act or shal l per f or m a weekl y i nspect i on of t he ent i r e per i met er of t he di ke cr est and sl opes ( ext er i or and i nt er i or ) of t he Upl and Di sposal Ar ea, i ncl udi ng 50 f eet beyond t he ext er i or t oe of t he s l ope. The Cont r act or shal l cut and mai nt ai n any veget at i on necessar y i n or der t o per f or m r equi r ed i nspect i ons. The pur pose of t he i nspect i on i s t o not e any di ke def i c i enci es and r epor t t hem t o t he Cont r act i ng Of f i cer . The i nspect i on shal l document any occur r ence of t he f ol l owi ng:

a. Seepage on out er f ace or downst r eam f r om t he t oe i n whi ch t her e ar e boi l s, sand cones, or del t as.

b. Si l t or sand accumul at i ons, boi l s, del t as, or cones i n t he dr ai nage di t ches at t he base of di kes.

c. Cr acki ng of soi l sur f ace on cr est or ei t her f ace of t he di ke.

d. Ser i ous er osi on of any di ke sur f ace.

e. Bul gi ng of t he ext er i or f ace of di ke.

f . Seepage, damp ar eas, boi l s, er osi on near wei r st r uct ur e or out f al l pipes.

g. Any subsi dence of t he di ke cr est or f aces.

I f no def i c i enci es ar e f ound, t he Cont r act or shal l document each weekl y i nspect i on i n hi s Dai l y Repor t of Oper at i ons f or t hat day. I f def i c i enci es ar e f ound, t he Cont r act or shal l i mmedi at el y not i f y t he Cont r act i ng Of f i cer as wel l as document each weekl y i nspect i on i n hi s Dai l y Repor t of Oper at i ons f or t hat day.

3. 3. 2. 6 Upl and Di sposal Ar ea/ Wei r Oper at i ons

a. Pl acement of Dr edge Di schar ge Pi pe. The dr edge di schar ge l i ne shal l be pl aced so t hat t he poi nt of di schar ge i nt o t he Upl and Di sposal Ar ea i s as f ar f r om t he wei r s as possi bl e.

b. Pondi ng and Wei r Oper at i ons. The wei r s shal l be act i vel y managed t o mi ni mi ze t he r et ur n of suspended sol i ds and associ at ed t ur bi di t y t o t he r ecei v i ng wat er body as speci f i ed i n Sect i on 01 57 25 Tur bi di t y Moni t or i ng. The wei r r i ser boar ds shal l be set t o mai nt ai n a mi ni mum pondi ng dept h at t he wei r of 2 f eet and a maxi mum pondi ng dept h of 4 f eet .

Al l wei r s shal l be act i vel y used i n decant i ng t he r et ur n wat er , and t he r i ser boar ds f or each wei r shal l be set at t he same el evat i on. Any devi at i on f r om t hese r equi r ement s must have pr i or wr i t t en appr oval f r om t he Cont r act i ng Of f i cer .

SECTI ON 35 20 23 Page 12

3. 3. 2. 7 Over l and Pi pel i ne Access

An over l and pi pel i ne easement i s shown on t he pl ans. The dr edge di schar ge pi pel i ne shal l be pl aced above gr ound and t he r out e wi l l be f l agged i n t he f i el d. Wher ever t he pi pel i ne i nt er sect s a r oad, a r amp shal l be const r uct ed over t he pi pel i ne by t he Cont r act or t o al l ow r oadway access.

Appr oxi mat e r amp l ocat i ons ar e i ndi cat ed on t he pl ans.

Ramps shal l be mai nt ai ned pr ompt l y by t he cont r act or f or saf e vehi cul ar use t hr oughout t he pr oj ect , and r emoved by t he cont r act or upon compl et i on of dr edge di sposal oper at i ons al ong wi t h any necessar y under l y i ng pavement repairs.

3. 3. 2. 8 Exi st i ng Out f al l Pi pes

The Cont r act or shal l ensur e t hat al l wei r s and out f al l pi pes ar e oper at i onal f or t hi s dr edgi ng event . The Cont r act or shal l i nspect , c l ean out and r epai r out f al l pi pes f or saf e oper at i on of t he wei r s. The cont r act or shal l i nspect out f al l shor el i ne st abi l i zat i on f or s i gns of scour and f ai l ur e pr i or t o st ar t i ng dr edgi ng oper at i ons and upon compl et i on.

Repai r s shal l be made t o r et ur n t he wei r syst ems t o t hei r i nt ended f unct i on i f necessar y. The cont r act or shal l i nspect t hese ar eas dur i ng t he pr e- bi d, di sposal ar ea s i t e v i s i t , est i mat e mat er i al s and equi pment r equi r ed t o compl et e t he wor k, and i ncl ude t hi s cost i n t he j ob pr i ce f or t he " Mobi l i zat i on and Demobi l i zat i on" l i ne i t em i n t he Li ne I t ems and Pr i c i ng Schedul e ( Sect i on 00010A) .

3. 3. 3 Barges

Wat er and dr edged mat er i al s shal l not be per mi t t ed t o over f l ow or spi l l out of bar ges or dump scows dur i ng t r anspor t t o t he di sposal s i t e( s) . Fai l ur e t o r epai r l eaks or change t he met hod of oper at i on whi ch i s r esul t i ng i n over f l ow or spi l l age wi l l r esul t i n suspensi on of dr edgi ng oper at i ons and r equi r e pr ompt r epai r or change of oper at i on t o pr event over f l ow or spi l l age as a pr er equi s i t e t o t he r esumpt i on of dr edgi ng.

3. 3. 4 Pl aci ng of Dr edged Mat er i al

Dur i ng pl acement of dr edged mat er i al i n t he di sposal ar ea, t he Cont r act or wi l l be r equi r ed t o pr ovi de const ant r adi o cont act bet ween t he dr edge and t he di sposal ar ea. Thi s wi l l enabl e t he Cont r act or ' s per sonnel at t he di sposal ar ea t o i mmedi at el y not i f y t he dr edge i n t he event of di ke or pi pel i ne f ai l ur e. I n t he event of di ke or pi pel i ne f ai l ur e, t he dr edgi ng oper at i ons shal l be i mmedi at el y suspended and r equi r e pr ompt r epai r of t he di ke or pi pel i ne as a pr er equi s i t e t o t he r esumpt i on of dr edgi ng.

3. 3. 5 Dr edge Pi pel i nes

3. 3. 5. 1 Dr edge Di schar ge Pi pel i ne

The Cont r act or shal l pl ai nl y mar k t he pi pel i ne access r out es wi t h conspi cuous st akes, t ar get s and/ or buoys t o be mai nt ai ned t hr oughout t he cont r act oper at i ons. A t i ght dr edge di schar ge pi pel i ne shal l be mai nt ai ned t o pr event spi l l i ng of dr edged mat er i al or dr edge wat er out s i de of t he di sposal ar ea. The Cont r act or shal l pr ovi de and mai nt ai n r adi o communi cat i on bet ween t he dr edge and t he di sposal ar eas and t he dr edge and t he Cont r act i ng Of f i cer . The pi pel i ne shal l be i nspect ed at l east t wi ce dai l y f or l eaks. Fai l ur e t o i mmedi at el y r epai r l eaks i n t he di schar ge

SECTI ON 35 20 23 Page 13 pi pel i ne wi l l r esul t i n suspensi on of dr edgi ng oper at i ons and r equi r e pr ompt r epai r of pi pel i ne as a pr er equi s i t e t o t he r esumpt i on of dr edgi ng.

Any damage t o pr i vat e or publ i c pr oper t y r esul t i ng f r om t he Cont r act or ' s oper at i ons shal l be r epai r ed by t he Cont r act or at hi s expense.

3. 3. 5. 2 Submer ged Pi pel i ne

I n t he event t he Cont r act or el ect s t o submer ge hi s pi pel i ne, t he pi pel i ne shal l r est on t he bot t om, and t he t op of t he submer ged pi pel i ne and any anchor secur i ng t he submer ged pi pel i ne shal l be no hi gher t han t he r equi r ed pr oj ect dept h f or t he channel i n whi ch t he submer ged pi pel i ne i s pl aced.

Shoul d t he Cont r act or el ect t o use a pi pel i ne mat er i al whi ch i s buoyant or semi - buoyant , such as PVC pi pe or s i mi l ar l ow densi t y mat er i al s, t he Cont r act or shal l secur el y anchor t he pi pel i ne t o pr event t he pi pel i ne f r om l i f t i ng of f t he bot t om under any condi t i ons. The Cont r act or shal l make dai l y i nspect i ons of t he submer ged pi pel i ne t o ensur e buoyancy has not l oosened t he anchor s. The Cont r act or shal l r emove al l anchor s when t he submer ged pi pel i ne i s r emoved. The l ocat i on of t he ent i r e l engt h of submer ged pi pel i ne shal l be mar ked wi t h s i gns, buoys, l i ght s, and f l ags conf or mi ng t o U. S. Coast Guar d r egul at i ons.

3. 3. 5. 3 Fl oat i ng Pi pel i ne

Shoul d t he Cont r act or ' s pi pel i ne not r est on t he bot t om, i t wi l l be consi der ed a f l oat i ng pi pel i ne and shal l be v i s i bl e on t he sur f ace and cl ear l y mar ked. I n no case wi l l t he Cont r act or ' s pi pel i ne be al l owed t o f l uct uat e bet ween t he sur f ace and t he bot t om, or l i e par t l y submer ged.

Li ght s shal l be i nst al l ed on t he f l oat i ng pi pel i ne as r equi r ed i n par agr aph SI GNAL LI GHTS above. The l i ght s shal l be suppor t ed ei t her by buoys or by t empor ar y pi l i ng, pr ovi ded by t he Cont r act or and appr oved by t he Cont r act i ng Of f i cer . Wher e t he pi pel i ne does not cr oss a navi gabl e channel , t he f l ashi ng yel l ow al l - ar ound l i ght s shal l be spaced not over 200 f eet apar t , unl ess c l oser spaci ng i s r equi r ed by U. S. Coast Guar d per sonnel , i n whi ch case t he r equi r ement s of t he U. S. Coast Guar d shal l gover n, at no addi t i onal cost t o t he Gover nment .

3. 3. 6 Boost er Pumps

Any boost er pumps i nst al l ed by t he Cont r act or shal l be l ocat ed at l east 300 f eet f r om any r esi dent i al - t ype bui l di ng or house. Boost er pumps, t hei r pr i me mover s, and any auxi l i ar y equi pment shal l be f i t t ed or equi pped wi t h muf f l er s, noi se cont r ol encl osur es, or ot her engi neer i ng noi se cont r ol met hods, measur es, and f eat ur es such t hat st eady noi se emanat i ng f r om t hi s equi pment does not exceed 85 deci bel s on t he A scal e at s l ow r esponse, and i mpul s i ve noi se does not exceed 140 deci bel s. Such i t ems shal l be mai nt ai ned t hr oughout t he cour se of t he wor k.

3. 3. 7 Mi spl aced Mat er i al s

Mat er i al s deposi t ed above t he maxi mum i ndi cat ed el evat i on or out s i de of t he di sposal ar ea t empl at e shown wi l l r equi r e t he degr adi ng or r emoval of such mat er i al s at t he Cont r act or ' s expense. The Cont r act or wi l l not be hel d r esponsi bl e f or er osi on caused by waves af t er t he mat er i al has been sat i sf act or i l y pl aced.

SECTI ON 35 20 23 Page 14

3. 4 REQUI RED DEPTH, ALLOWABLE OVERDEPTH, AND SI DE SLOPES

3. 4. 1 Requi r ed Dept h

The mat er i al act ual l y r emoved f r om t he desi gnat ed ar eas t o be dr edged, t o a dept h of not mor e t han t he r equi r ed dept h shown on t he dr awi ngs, wi l l be est i mat ed and pai d f or i n accor dance wi t h t he pr ovi s i ons cont ai ned i n t he subpar agr aphs " Measur ement " and " Payment " of Sect i on 01 22 00 MEASUREMENT

AND PAYMENT.

3. 4. 2 Al l owabl e Over dept h

To cover t he i naccur aci es of t he dr edgi ng pr ocess, mat er i al act ual l y r emoved f r om t he desi gnat ed ar eas t o be dr edged, t o a dept h bel ow t he r equi r ed dept h of not mor e t han t he al l owabl e over dept h shown on t he dr awi ngs, wi l l be measur ed and pai d f or i n accor dance wi t h t he pr ovi s i ons cont ai ned i n t he subpar agr aphs " Measur ement " and " Payment " of Sect i on

01 22 00 MEASUREMENT AND PAYMENT.

3. 4. 3 Si de Sl opes

Al t hough dr edgi ng of s i de s l ope mat er i al may be necessar y t o pr ovi de t he r equi r ed pr oj ect channel di mensi ons ( dept h and wi dt h) , t he s i de s l opes shown on t he dr awi ngs ar e pr ovi ded f or payment pur poses onl y.