Amend_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)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

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

FAR (48 CFR) 53.243

The subject solicitation for Mississippi River, New Orleans Harbor, Cutterhead Dredge Rental No. 3-2019, Orleans, Jefferson Parishes, Louisiana (OM-19-032) is hereby amended as follow s:

1. Incorporate attached pages to solicitation. Inadvertantly left off of Amendment 0001.

2. All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

1 2

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

16C. DATE SIGNED

BY 08-Aug-2019

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 W912P819B0034

X 9B. DATED (SEE ITEM 11)

02-Apr-2019

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

08-Aug-2019

CODE

USACE, CONTRACTING DIVISION

ATTN: CEMVN-CT, ROOM 172

7400 LEAKE AVE.

NEW ORLEANS LA 70118-3651

W912P8 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

Miss R, New Orleans Harbor and Various Bar Channels Cutterhead OM19032AM001

SECTION TABLE OF CONTENTS

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

SECTION 00010

BID SCHEDULE

PART 1 GENERAL

1.1 BIDDING SCHEDULES

1.2 BID FORM NOTES

1.3 BIDDING

1.4 EVALUATION OF BIDS

1.5 CONDITIONS OF CONTRACT AWARD

1.6 BIDDER QUALIFICATIONS

1.7 PRE-AWARD INSPECTION OF PLANT

1.8 OPTION ITEMS

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION (Not Used)

-- End of Section Table of Contents --

SECTION 00010 Page 1

SECTION 00010

BID SCHEDULE

PART 1 GENERAL

1.1 BIDDING SCHEDULES

See bid schedules on the following pages.

SECTION 00010 Page 2

SECTION 00010 - BIDDING SCHEDULE

MISSISSIPPI RIVER, NEW ORLEANS HARBOR

CUTTERHEAD DREDGE RENTAL NO. 3-2019

ORLEANS AND JEFFERSON PARISHES, LOUISIANA

SOLICITATION NO. W912P819B0034

LOT ONE, 27 IN. INSIDE DIAMETER (ID) PUMP DISCHARGE WITHOUT SUBMERGED PUMP

Bid Item DESCRIPTION Estimated Quantity

Unit Unit Price

Total Price

0001 MOBILIZATION AND

DEMOBILIZATION

1 JOB

0002 NOH DREDGING: Rental of one fully operated cutterhead dredge with 27-inch ID pump discharge, attendant plant and discharge pipeline as specified.

1440 HOUR

Option

NOH OPTION DREDGING:

Same plant as listed in Item No. 0002 of this bid lot.

1440 HOUR XXXXXXXX

0004 DREDGE TOWING SERVICE 60 MILE

OPTION

OPTION DREDGE TOWING

SERVICE

60 MILE XXXXXXXX

0006 PREPARATORY WORK FOR

BARATARIA BAR DREDGING

REGION

1 JOB

0007 BARATARIA BAR

DREDGING: Rental of one fully operated cutterhead dredge with 27-inch ID pump discharge, attendant plant, and discharge pipeline as specified.

169 HOUR

OPTION

BARATARIA BAR OPTION

DREDGING: Same plant as listed in Item No.

0007 of this bid lot.

169 HOUR XXXXXXXX

TOTAL: LOT ONE BID

*SEE BID FORM NOTES FOLLOWING LAST BID LOT

SECTION 00010 Page 3

MISSISSIPPI RIVER, NEW ORLEANS HARBOR

CUTTERHEAD DREDGE RENTAL NO. 3-2019

ORLEANS AND JEFFERSON PARISHES, LOUISIANA

SOLICITATION NO. W912P819B0034

LOT TWO, 30 IN. INSIDE DIAMETER (ID) PUMP DISCHARGE WITHOUT SUBMERGED PUMP

Bid Item DESCRIPTION Estimated Quantity

Unit Unit Price

Total Price

0001 MOBILIZATION AND

DEMOBILIZATION

1 JOB

0002 NOH DREDGING: Rental of one fully operated cutterhead dredge with 30-inch ID pump discharge, attendant plant and discharge pipeline as specified.

1168 HOUR

Option

NOH OPTION DREDGING:

Same plant as listed in Item No. 0002 of this bid lot.

1168 HOUR XXXXXXXX

0004 DREDGE TOWING SERVICE 60 MILE

OPTION

OPTION DREDGE TOWING

SERVICE

60 MILE XXXXXXXX

0006 PREPARATORY WORK FOR

BARATARIA BAR DREDGING

REGION

1 JOB

0007 BARATARIA BAR

DREDGING: Rental of one fully operated cutterhead dredge with 30-inch ID pump discharge, attendant plant, and discharge pipeline as specified.

137 HOUR

OPTION

BARATARIA BAR OPTION

DREDGING: Same plant as listed in Item No.

0007 of this bid lot.

137 HOUR XXXXXXXX

TOTAL: LOT TWO BID

SECTION 00010 Page 4

MISSISSIPPI RIVER, NEW ORLEANS HARBOR

CUTTERHEAD DREDGE RENTAL NO. 3-2019

ORLEANS AND JEFFERSON PARISHES, LOUISIANA

SOLICITATION NO. W912P819B0034

LOT THREE, 30 IN. INSIDE DIAMETER (ID) PUMP DISCHARGE WITH SUBMERGED PUMP

Bid Item DESCRIPTION Estimated Quantity

Unit Unit Price

Total Price

0001 MOBILIZATION AND

DEMOBILIZATION

1 JOB

0002 NOH DREDGING: Rental of one fully operated cutterhead dredge with 30-inch ID pump discharge, submerged pump, attendant plant and discharge pipeline as specified.

880 HOUR

Option

NOH OPTION DREDGING:

Same plant as listed in Item No. 0002 of this bid lot.

880 HOUR XXXXXXXX

0004 DREDGE TOWING SERVICE 60 MILE

OPTION

OPTION DREDGE TOWING

SERVICE

60 MILE XXXXXXXX

0006 PREPARATORY WORK FOR

BARATARIA BAR DREDGING

REGION

1 JOB

0007 BARATARIA BAR

DREDGING: Rental of one fully operated cutterhead dredge with 30-inch ID pump discharge, submerged pump, attendant plant, and discharge pipeline as specified.

110 HOUR

OPTION

BARATARIA BAR OPTION

DREDGING: Same plant as listed in Item No.

0007 of this bid lot.

110 HOUR XXXXXXXX

TOTAL: LOT THREE

BID

SECTION 00010 Page 5

1.2 BID FORM NOTES

a. Bidders shall bid on all items including optional items (see "Evaluation of Options" FAR 52.217-5). Failure to bid on all items will result in a non-responsive bid.

b. Bidders shall use the Item No. 0002 unit price to compute Option Item No. 0003 total price, Item No. 0004 unit price to compute Option Item No. 0005 total price, and Item No. 0007 unit price to compute Option Item No. 0008 total price.

c. Any bid may be rejected if the Contracting Officer or his/her authorized representative determines in writing that it is unreasonable as to price. Unreasonableness of price includes not only the total price of the bid, but the prices for individual line items as well.

Any bid may be rejected if the prices for any line items or subline items are materially unbalanced (see "Rejection of Individual Bids" FAR 14.404-2.

d. THE NOTICE TO PROCEED (NTP): The successful bidder is advised that performance and payment bonds shall be submitted in accordance with the time frame in block 12B of SF 1442 after Notice of Award. The NTP will be issued after verification of acceptable performance and payment bonds. Within 48 hours after issuance of the NTP, the Contractor shall initiate a meeting to discuss the submittal process with the Administrative Contracting Officer or his/her authorized representative. Physical work cannot start until the Resident Management System is set-up, the Accident Prevention Program and other required submittals have been submitted and approved, and all preliminary meetings called for under the contract have been conducted.

e. RAPID VENDOR PAYMENT: See the following web based instructions for the submission of invoices:

www.mvn.usace.army.mil/Business-With-Us/Contracting/Rapid-Vendor-Payment.aspx.

f. The unit "job" is a one-time payment for work performed. "Job" is synonymous with the previously used term "lump sum".

1.3 BIDDING

a. The bidder shall select only one bid lot, determined by the class of dredge intended to be used. Bids which are submitted on an inappropriate bid lot will be declared non-responsive.

b. Bidders shall furnish unit prices for all items listed on the schedule of bid items that require unit prices. If the bidder fails to insert a unit price in the appropriate blank for required items but does furnish an extended total or an estimated amount for such items, the Government will deem the unit price to be the quotient obtained by dividing the extended estimated amount for that line item by the quantity. IF THE BIDDER OMITS BOTH THE UNIT PRICE AND THE EXTENDED

ESTIMATED AMOUNT FOR ANY REQUIRED ITEM, THE BID WILL BE DECLARED

NON-RESPONSIVE.

1.4 EVALUATION OF BIDS

a. To provide fair competition between dredges of dissimilar sizes and production rates, the hourly dredging quantities have been determined based on the estimated quantity of shoal material to be removed and the

SECTION 00010 Page 6 nominal production rates of the dredges in each bid lot. The production rates shown in the minimum production rate chart located in the Dredging Regions Section(s) were used to make this determination.

b. The nominal dredge production rates listed in this solicitation were conservatively estimated based on lower-bound material face availability of this solicitation's dredging regions, which have variable and dynamic shoaling conditions. It is the bidder's responsibility to make its own assessment of the actual dredging conditions in order to prepare a bid for this work.

c. Award will be made to that responsible bidder presenting the lowest priced responsive bid in response to this solicitation, regardless of the Bid Lot used.

d. The hourly quantities for the Dredging and Option Dredging Items shown on the bid lots are 100% pay time hours. The actual term of the dredge rental may vary as a result of fractional pay time. Refer to Section 35 20 23.23, paragraph entitled "Dredging and Option Dredging Items", for additional information.

1.5 CONDITIONS OF CONTRACT AWARD

a. Award will be made as a whole to one bidder. The dredge and attendant plant offered in the bidding schedule shall be complete with full operating personnel and in operating status for the contract period. EM 385-1-1, Section 19, "Floating Plant and Marine Activities" shall be complied with at all times. NOTE: All work under these specifications shall be performed in accordance with the provisions of EM 385-1-1 "Army Corps of Engineers Safety and Health Requirements Manual", latest edition.

b. The Government may award the contract at the total bid price, comprised of the base items and option item(s); however, the Government will not be obligated to exercise any option item(s).

c. The number of hours of rental time stated in the bidding schedule is an estimated quantity. The dredge and attendant plant will be retained for an approximate number of days shown in the table below starting no later than 240 hours after receipt of Government Notice to Proceed by the Contractor.

SECTION 00010 Page 7

APPROXIMATE DREDGE

CONTRACT DURATION

(BASE PLUS OPTION)

Bid Lot Discharge Line ID

(INCHES)

SUBMERGED PUMP Approximate Number of Rental Days

1 27 No 192

2 30 No 163

3 30 Yes 134

d. The bidder shall be capable of providing for assignment of the dredge and all attendant plant, complete and in full operating condition in all respects, no later than 240 hours after receipt of Notice to Proceed by the Contractor.

1.6 BIDDER QUALIFICATIONS

a. Before the Government will award a contract based on this solicitation, the apparent low bidder shall establish that it is responsible and entitled to award of the contract, by certifying that its dredge meets the appropriate production rate for the dredging region, as listed in the minimum production rate chart located in the Dredging Regions Section(s). The dredge must have performed at, or above, the listed production rate for at least 85 percent of the total contract duration, on any contracts that are used to prove plant capability, within three years prior to the bid opening date of this solicitation. Failure to establish the dredge's capability to meet the required production rate will result in a finding of non-responsibility.

b. A bidder may be rejected as non-responsible if it cannot show the necessary capital, experience, or equipment needed to perform the work described under this solicitation (see "Responsible Prospective Contractors" FAR 9.1). The bidder must also show that the dredge and attendant plant are not already obligated for the performance of other work which would delay commencement, performance, and completion of the solicited work; and must show that delivery of the dredge and attendant plant to the site of work can be made within the time allowed in the specifications.

c. Bidders must register in the System for Award Management (SAM) database in accordance with FAR 52.204-7 and DFARS 252.204-7004 Alt A.

1.7 PRE-AWARD INSPECTION OF PLANT

a. The apparent low bidder shall make the dredge and attendant plant available for inspection, to determine compliance with these specifications, as soon as practicable after bids are opened, and prior to contract award. If deficiencies are found during the inspection, the bidder will be notified in writing, which may be transmitted by email or facsimile. Upon receipt of such notice, the bidder shall correct all deficiencies at least two calendar days in advance of the projected contract award date.

SECTION 00010 Page 8

b. Two calendar days before the projected award date, or upon notification by the bidder that the deficiencies have been corrected, a Government representative will re-inspect the dredge and attendant plant. If at that time the dredge and attendant plant do not meet the requirements of these specifications, the bidder will be rejected as non-responsible.

c. The Government may choose to waive the pre-award inspection if the projected contract award date is less than five calendar days after the bid opening date. Waiver of the pre-award inspection does not relieve the bidder from the requirement to provide a dredge and attendant plant in full compliance with the specifications.

1.8 OPTION ITEMS

a. The Government may require the delivery of, in whole or part, any Option Items. The Government may exercise an Option Item by written notice to the Contractor. If the Government activates the Option Item, the activation will occur while the Contractor's equipment is in the work vicinity as described in the applicable Dredging Region Section(s). If Option Dredging Item work is exercised, it shall be performed as a continuance of Dredging Item work, which shall be activated first.

b. No additional mobilization/demobilization will be paid to the Contractor for Option Item work performed within the work region. The Contractor shall commence performance of optional work no more than three calendar days after the time the Contractor receives the Government's Notice to Proceed with the optional work.

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION (Not Used)

-- End of Section --

SECTION 00010 Page 9

SUBMITTAL REGISTER CONTRACT NO.

(ER 415-1-10)

TITLE AND LOCATION CONTRACTOR SPECIFICATION SECTION

CONTRACTOR

TYPE OF SUBMITTAL ACTION

A C T I V I T Y

N O

TRANS-

MITTAL

NO

I T E M

N O

SPECIFICATION

SECTION

NUMBER

DESCRIPTION OF

ITEM SUBMITTED

D A T A

D R A W I N G S

I N S T R U C T I O N S

S C H E D U L E S

S T A T E M E N T S

R E P O R T S

C E R T I F I C A T E S

S A M P L E S

R E C O R D S

O M

M A N U A L S

I N F O R M A T I O N

O N L Y

G O V E R N M E N T

A P P R O V E D

R E V I E W E R

SUBMIT

APPROVAL

NEEDED

BY

MATERIAL

NEEDED

BY

C O D E

DATE

SUBMIT TO

GOVERN-

MENT

C O D E

DATE REMARKS

a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q. r. s. t. u. v. w. x. y. z. aa.

1 01 30 00 As-Built Drawings X X NOAO

/LAO

2 01 35 26 Accident Prevention Program X SS

3 01 57 20.00 10 Environmental Protection Plan X X NOAO

/LAO

4 35 01 50.73 Plan for Verification of Survey Equipment X X NOAO

/LAO

5 35 01 50.73 Calibration of Fathometer X X NOAO

/LAO

6 35 01 50.73 Calibration of Horizontal Positioning Equipment X X NOAO

/LAO

7 35 01 50.73 Before and After Dredging Cross Sections X X X NOAO

/LAO

8 35 20 23.23 Pump Curve(s) X X OD-T

9 35 20 23.23 Plant Data Sheet X X OD-T

10 35 20 23.23 Plan of Operations for Utility Crossings X X NOAO

/LAO

11 35 20 23.23 Utility As-Builts and Surveys Received from the Owners X X X OD-T

12 35 20 23.23 19 Before and After Disposal Surveys X X X NOAO

/LAO

ENG FORM 4288-R, JAN 97 EDITION OF MAR 95 IS OBSOLETE. PAGE _1_ OF _1_ PAGES (PROPONENT: CEMP-CE)

NOTE: THIS REGISTER IS NOT NECESSARILY COMPLETE. THE CONTRACTOR SHALL BE RESPONSIBLE FOR DEVELOPING A COMPREHENSIVE REGISTER.

ACTION

Mississippi River, New Orleans Harbor and Various Bar Channels Cutterhead Dredge Rental Contract No. 3-2019

CLASSI-

FICATION

GOVERNMENT CONTRACTOR

SCHEDULE DATES

SECTION TABLE OF CONTENTS

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

SECTION 35 20 23.23 19

HYDRAULIC DREDGING - BARATARIA BAY WATERWAY BAR CHANNEL DREDGING REGION

PART 1 GENERAL

1.1 SCOPE

1.2 MEASUREMENT AND PAYMENT

1.2.1 Base Item: Preparatory Work For Barataria Bar Dredging Region

1.2.2 Non-Standard Dredging Conditions

1.2.3 Dredging and Option Dredging Items

1.3 EXISTING STRUCTURES OR UTILITIES

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION

3.1 DREDGING

3.1.1 Dredging Region

3.1.1.1 Barataria Bay Waterway Bar Channel

3.1.2 Pipeline and Equipment Access

3.1.3 Dredge Discharge Pipeline

3.1.4 Before and After Disposal Surveys

3.1.5 Before and After Dredging Cross Sections

3.1.6 Survey Data

3.2 PREVIOUS DREDGING CONTRACTS

3.3 MINIMUM PRODUCTION RATE REQUIREMENTS

3.4 HORIZONTAL AND VERTICAL CONTROL POINTS

ATTACHMENTS:

Barataria Bay Waterway Bar Channel Maintenance Dredging Plates

-- End of Section Table of Contents --

SECTION 35 20 23.23 19 Page 1

SECTION 35 20 23.23 19

HYDRAULIC DREDGING - BARATARIA BAY WATERWAY BAR CHANNEL DREDGING REGION

PART 1 GENERAL

1.1 SCOPE

This section details specific requirements, which are in addition to the general requirements set forth in the specifications, for the Barataria Bay Waterway Bar Channel Dredging Region. The work covered by this section consists of furnishing all labor, materials, and equipment, and performing all work required for dredging in the specified dredging region, except for those measures set forth in other technical portions of the specifications.

1.2 MEASUREMENT AND PAYMENT

Payment for the work covered under this section shall be included in the applicable contract unit price per hour for "Barataria Bar Dredging" and "Barataria Bar Option Dredging" except for "Preparatory Work For Barataria Bar Dredging Region".

1.2.1 Base Item: Preparatory Work For Barataria Bar Dredging Region

All costs associated with the mobilization of any dredge plant required for the Barataria Bay Waterway Bar Channel Dredging Region that is in excess of what was required at the Algiers, IHNC, and Harvey Lock Forebays Dredging Region shall be included in the job price for "Preparatory Work For Barataria Bar Dredging Region". Once dredging operations are complete in Barataria Bar Channel, payment for final demobilization of the Contractor's plant and equipment shall be included in the contract job price for "Mobilization and Demobilization".

1.2.2 Non-Standard Dredging Conditions

The following conditions will be considered non-standard:

a. Those conditions described in Section 35 20 23.23, paragraph entitled "Dredging in Non-Standard Reaches and Conditions".

b. Any locations within the Barataria Bar Channel where the dredging template from station -75+00 to -210+00 yields less than a 250 foot swing width.

1.2.3 Dredging and Option Dredging Items

Reference Section 35 20 23.23, paragraph entitled "70% Pay Time Hours".

Movement of the dredge and attendant plant from the Algiers, IHNC, and Harvey Lock Forebays Dredging Region to the Barataria Bay Waterway Bar Channel Dredging Region will be paid at 70% of the contract unit price per hour for "Barataria Bar Dredging".

SECTION 35 20 23.23 19 Page 2

1.3 EXISTING STRUCTURES OR UTILITIES

The structures or utilities listed below are known to be located within or near the dredging region.

Structure or Utility

Owner Information Approximate C/L Station

Elevation (feet MLG)

Two Electrical Power Lines

Entergy

2581 Highway 1 Labadieville, LA 70372

Mr. Terry Hebert 504-343-7273 theber2@entergy.com crosses disposal area

Unknown

Two 20-inch Oil Pipelines

Chevron Pipeline Co.

1400 Smith St., 38114 Houston, TX 77002-7327

Mr. Steven Fontana 2219 West Park Ave.

Gray, LA 70359-3602

985-446-4658 sfontana@chevron.com

Mr. Jace Serigny 165 Chevron Road

Golden Meadow, LA 70357 985-258-7618 jserigny@chevron.com near disposal area (north of flotation channel)

3.0' below mudline

4-inch flowline

McMoran Oil and Gas, LP

1615 Poydras St.

New Orleans, LA 70112

504-582-4000

Mr. John Seip 504-582-4314 jseip@FMI.com

-224+69 3.0' below mudline

12-inch Oil Pipeline

Energy XXI

1021 Main St.

Suite 2626

Houston, TX 77002

Mr. Stephen Heimel 713-396-4196 sheimel@energyxxi.com

Ms. Amy Moreau 713-594-7994

-242+27 3.0' below mudline

SECTION 35 20 23.23 19 Page 3

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION

3.1 DREDGING

3.1.1 Dredging Region

3.1.1.1 Barataria Bay Waterway Bar Channel

a. The authorized dimensions for the Barataria Bay Waterway Bar Channel are -15 feet Mean Low Gulf (MLG) by 250 feet bottom width from Station -75+00 to -210+00. The Contracting Officer or his/her authorized representative may issue dredging assignments for all or portions of this dredging region. Each dredging assignment will define the dredging template to be dredged by the Contractor. The dredging template will include the swing width, the side slope, and the specified elevation. The specified elevation in the dredging assignment will not exceed 3 feet below the authorized elevation and may be specified above the authorized dimensions when determined to be beneficial to the Government.

b. Disposal of dredge material shall be at the Government's direction. Material deposited shall be deposited along the edge of the gulf side beach, in the immediate vicinity of the water's edge. At no time during construction shall any equipment be operated in areas along the beach with existing vegetation. Disposal shall initiate at the western limit of proposed disposal. The discharge line shall be placed so as to direct the discharge parallel to the shoreline and in an easterly direction in an effort to maximize material retention. No direct discharge shall be placed within 50 feet of the existing buildings of the Lyle S. St. Amant Laboratory buildings. The elevation of the material shall not exceed +4.0 feet MLG. As the maximum elevation is reached, the discharge line shall be moved as necessary to maintain construction of a continuous disposal berm, in compliance with this elevation. The approved disposal area is shown on the Barataria Bay Waterway Bar Channel Maintenance Dredging Plates.

3.1.2 Pipeline and Equipment Access

When disposing in the disposal area, the pipeline shall be routed from the Barataria Bar Channel to the disposal area(s) across the gulf shoreline.

No flotation excavation is allowed through the gulf. The Contractor shall ensure that equipment and pipeline are not placed over the existing stone dike surrounding Fort Livingston.

3.1.3 Dredge Discharge Pipeline

The Contractor shall provide 18,000 feet of serviceable floating, submerged, or shore pipeline and all associated equipment as directed by the Government. See Section 35 20 23.23, paragraphs entitled "Dredge Discharge Pipeline" and "Shore Pipeline", for additional information regarding pipeline requirements.

3.1.4 Before and After Disposal Surveys

Before and after disposal area surveys shall be taken at the Government's direction within the disposal area. Cross-sections shall be taken normal to the beach, beginning at the water's edge and extending 100 feet

SECTION 35 20 23.23 19 Page 4 gulfward. Spacing between the cross sections shall not exceed 100 feet.

Soundings and/or rod readings shall be recorded to the nearest tenth of a foot and the distance between soundings and/or rod readings shall not exceed 25 feet. The surveys shall extend to adequately cover the area impacted by dredge material placement.

All surveys shall be tied/referenced to the centerline of the channel. All notes resulting from these surveys shall be presented to the Contracting Officer's Representative. The Contractor shall provide a topographic plot of the disposal site. The plot shall have contour intervals of not less than 1 foot and a scale of 1 inch = 30 feet. The before and after disposal surveys shall be furnished to the Government in a Microstation version

5.07.01.22 (or updated) design file containing survey elevations with contours in one foot increments. A hard copy of the before and after disposal surveys with contours shall also be furnished to the Government.

All survey data shall be in NAD 83. Data shall also be furnished to the Government in a computerized IBM-compatible structured ASCII format on magnetic media. Each disk submitted shall bear a pre-printed disk label that provides for disk contents, have a write protect seal mechanism, and provide a space to indicate disk virus check. All disks submitted shall be virus checked, cleared of viruses if necessary, and all disk label entries completed. Copies of the before and after disposal surveys shall be submitted to Mr. Ed Creef electronically at Edward.D.Creef@usace.army.mil or by hard copy to the address listed below:

US Army Corps of Engineers New Orleans District Attn: Mr. Ed Creef, CEMVN-OD-T Room 296 7400 Leake Ave New Orleans, LA 70118

3.1.5 Before and After Dredging Cross Sections

In addition to the requirements in Section 35 01 50.73, paragraph entitled "Before and After Dredging Cross Sections", the before and after dredging cross sections of the channel shall be taken at approximately 200-foot intervals along the channel.

3.1.6 Survey Data

In addition to the requirements in Section 35 01 50.73, paragraph entitled "Survey Data", the Contractor shall promptly plot the channel cross sections on a scale of 1 inch = 25 feet horizontal and 1 inch = 10 feet vertical.

3.2 PREVIOUS DREDGING CONTRACTS

Contact the contract personnel listed at the beginning of the specifications for information regarding previous dredging contracts.

3.3 MINIMUM PRODUCTION RATE REQUIREMENTS

a. The following chart shows the minimum production rates the dredge must perform at as specified in Section 35 20 23.23, paragraph entitled "Required Production and Dredging Tolerances".

SECTION 35 20 23.23 19 Page 5

Size of Dredge Pump Discharge (inches)

Submerged Pump

Minimum Output (cy/hr)

27 No 1667

30 No 2058

30 Yes 2563

b. If a dredge's submerged pump becomes inoperable and the Contractor elects to continue dredging, then the Contractor will be allowed to operate without the submerged pump provided the specifications have a bid lot for that size dredge without a submerged pump and provided the dredge meets the minimum production rate shown on the chart above and as specified in Section 35 20 23.23, paragraph entitled "Required Production and Dredging Tolerances". For a dredge with an inoperable submerged pump, the new unit price per hour for "Barataria Bar Dredging" and "Barataria Bar Option Dredging" shall be computed as follows:

New unit price per hour = (Original Base Item Estimated Quantity)x(Original Base Item Unit Price) Estimated Quantity From Base Item Bid Schedule of Applicable Bid Lot for the Same Size Dredge Without a Submerged Pump

The remaining hours, if any, on the Basic Payment Items will be prorated so that payments available to the Contractor under Option Payment Items will be unchanged. Option dredging payment hours will also be prorated separately, so that the total payments available to the Contractor for exercised options remain unchanged.

3.4 HORIZONTAL AND VERTICAL CONTROL POINTS

Horizontal and vertical control points are shown on the plates attached at the end of this section.

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SECTION 35 20 23.23 19 Page 6

BARATARIA BAR CHANNEL MINIMUM PRODUCTION RATE TABLE