W912P823B0028 Amendment 0001.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 above numbered solicitation for Mississippi River, New Orleans Harbor, and Various Bar Channels Cutterhead Dredge No. 3-2023.

Orleans, Jefferson, Terrebonne, Plaquemines, and Lafourche Parishes, Louisiana is hereby amended as follow s:

1. Establish Bid Opening date of Thursday, 3 August 2023 at 1:30 p.m. CST via audio teleconference. See Instructions to Bidders.

2. Make changes to the solicitation as detailed in the follow ing pages.

3. Updated Instructions to Bidders.

4. Update Wage Determination.

Please Note: The Contracting Officer and Contract Specialist w ill begin dow nloading bids at 12:30 PM CST, w hich is the bid receipt cutoff time. All bids received after 12:30 PM CST on Thursday, August 3, 2023 w ill be considered late. For any questions, please contact the Contracting Officer - Veronica Garner Flint, (504) 862-1515 or the Contract Specialist - Melissa A. Vaughn, (504) 862-2762.

1. CONTRACT ID CODE PAGE OF PAGES

1 42

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

16C. DATE SIGNED

BY 17-Jul-2023

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 W912P823B0028

X 9B. DATED (SEE ITEM 11)

17-Mar-2023

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

17-Jul-2023

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 OM23032AMEND

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

SECTION 00010 - BIDDING SCHEDULE

MISSISSIPPI RIVER, NEW ORLEANS HARBOR AND VARIOUS BAR CHANNELS

CUTTERHEAD DREDGE NO. 3-2023

ORLEANS, JEFFERSON, TERREBONNE, PLAQUEMINES, AND LAFOURCHE PARISHES, LA

SOLICITATION NO. W912P823B0028

LOT ONE, 24 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 HOUMA DREDGING 403 HOUR

Option

HOUMA OPTION DREDGING 403 HOUR XXXXXXXX

0004 PREPARATORY WORK FOR

BARATARIA BAY - LOWER

DISPOSAL AREA

1 JOB

0005 PREPARATORY WORK FOR

BARATARIA BAY - UPPER

DISPOSAL AREA

1 JOB

0006 BARATARIA BAY DREDGING 695 HOUR

Option

BARATARIA BAY OPTION

DREDGING

695 HOUR XXXXXXXX

0008 DREDGE TOWING SERVICE 45 MILE

Option

BIRD NESTING PREVENTION

AND AVOIDANCE MEASURES

70 DAY

TOTAL: LOT ONE BID

*SEE BID FORM NOTES FOLLOWING LAST BID LOT

SECTION 00010 Page 2

SECTION 00010 - BIDDING SCHEDULE

MISSISSIPPI RIVER, NEW ORLEANS HARBOR AND VARIOUS BAR CHANNELS

CUTTERHEAD DREDGE NO. 3-2023

ORLEANS, JEFFERSON, TERREBONNE, PLAQUEMINES, AND LAFOURCHE PARISHES, LA

SOLICITATION NO. W912P823B0028

LOT TWO, 24 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 HOUMA DREDGING 351 HOUR

Option

HOUMA OPTION DREDGING 351 HOUR XXXXXXXX

0004 PREPARATORY WORK FOR

BARATARIA BAY - LOWER

DISPOSAL AREA

1 JOB

0005 PREPARATORY WORK FOR

BARATARIA BAY - UPPER

DISPOSAL AREA

1 JOB

0006 BARATARIA BAY DREDGING 491 HOUR

Option

BARATARIA BAY OPTION

DREDGING

491 HOUR XXXXXXXX

0008 DREDGE TOWING SERVICE 45 MILE

Option

BIRD NESTING PREVENTION

AND AVOIDANCE MEASURES

49 DAY

TOTAL: LOT TWO BID

SECTION 00010 Page 3

MISSISSIPPI RIVER, NEW ORLEANS HARBOR AND VARIOUS BAR CHANNELS

CUTTERHEAD DREDGE NO. 3-2023

ORLEANS, JEFFERSON, TERREBONNE, PLAQUEMINES, AND LAFOURCHE PARISHES, LA

SOLICITATION NO. W912P823B0028

LOT THREE, 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 HOUMA DREDGING 300 HOUR

Option

HOUMA OPTION DREDGING 300 HOUR XXXXXXXX

0004 PREPARATORY WORK FOR

BARATARIA BAY - LOWER

DISPOSAL AREA

1 JOB

0005 PREPARATORY WORK FOR

BARATARIA BAY - UPPER

DISPOSAL AREA

1 JOB

0006 BARATARIA BAY DREDGING 500 HOUR

Option

BARATARIA BAY OPTION

DREDGING

500 HOUR XXXXXXXX

0008 DREDGE TOWING SERVICE 45 MILE

Option

BIRD NESTING PREVENTION

AND AVOIDANCE MEASURES

50 DAY

TOTAL: LOT THREE BID

SECTION 00010 Page 4

MISSISSIPPI RIVER, NEW ORLEANS HARBOR AND VARIOUS BAR CHANNELS

CUTTERHEAD DREDGE NO. 3-2023

ORLEANS, JEFFERSON, TERREBONNE, PLAQUEMINES, AND LAFOURCHE PARISHES, LA

SOLICITATION NO. W912P823B0028

LOT FOUR, 30 IN. OR GREATER 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 HOUMA DREDGING 209 HOUR

Option

HOUMA OPTION DREDGING 209 HOUR XXXXXXXX

0004 PREPARATORY WORK FOR

BARATARIA BAY - LOWER

DISPOSAL AREA

1 JOB

0005 PREPARATORY WORK FOR

BARATARIA BAY - UPPER

DISPOSAL AREA

1 JOB

0006 BARATARIA BAY DREDGING 405 HOUR

Option

BARATARIA BAY OPTION

DREDGING

405 HOUR XXXXXXXX

0008 DREDGE TOWING SERVICE 45 MILE

Option

BIRD NESTING PREVENTION

AND AVOIDANCE MEASURES

41 DAY

TOTAL: LOT FOUR BID

SECTION 00010 Page 5

MISSISSIPPI RIVER, NEW ORLEANS HARBOR AND VARIOUS BAR CHANNELS

CUTTERHEAD DREDGE NO. 3-2023

ORLEANS, JEFFERSON, TERREBONNE, PLAQUEMINES, AND LAFOURCHE PARISHES, LA

SOLICITATION NO. W912P823B0028

LOT FIVE, 30 IN. OR GREATER 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 HOUMA DREDGING 165 HOUR

Option

HOUMA OPTION DREDGING 165 HOUR XXXXXXXX

0004 PREPARATORY WORK FOR

BARATARIA BAY - LOWER

DISPOSAL AREA

1 JOB

0005 PREPARATORY WORK FOR

BARATARIA BAY - UPPER

DISPOSAL AREA

1 JOB

0006 BARATARIA BAY DREDGING 325 HOUR

Option

BARATARIA BAY OPTION

DREDGING

325 HOUR XXXXXXXX

0008 DREDGE TOWING SERVICE 45 MILE

Option

BIRD NESTING PREVENTION

AND AVOIDANCE MEASURES

33 DAY

TOTAL: LOT FIVE BID

SECTION 00010 Page 6

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 the Option Item No. 0003 total price, and the Item No. 0006 unit price to compute the Option Item No. 0007 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 nominal production rate of the dredge in each bid lot. The production

SECTION 00010 Page 7 rates shown in the chart in the paragraph entitled "Minimum Production Rate Requirements" located in the Dredging Region Section(s) were used to make this determination.

b. The nominal dredge production rates listed in this solicitation were conservatively estimated based on an average "Standard" cross-sectional quantity of material for 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 calendar duration of the contract 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 is not obligated to exercise any option item(s).

c. The number of hours 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 20 calendar days after issuance of the Notice to Proceed.

APPROXIMATE DREDGE

CONTRACT DURATION

Bid Lot Approx. Number of Days for Item 0002

Approx. Number of Days for

Option Item 0003

Approx. Number of Days for Item 0006

Approx. Number of Days for

Option Item 0007

1 26 26 44 44

2 23 23 35 35

3 21 21 35 35

4 17 17 31 31

5 15 15 27 27

SECTION 00010 Page 8

The time required for completion of the contract shall be established as the sum of the calendar days listed in the columns entitled "Approx.

Number of Days for Item 0002" and "Approx. Number of Days for Item 0006" for the applicable bid lot. In the event all Option Items are fully exercised under the terms of the contract, the time required for completion of the contract shall be extended by the sum of the calendar days listed in the columns entitled "Approx. Number of Days for Option Item 0003" and "Approx. Number of Days for Option Item 0007" for the applicable bid lot. In the event an Option Item is partially exercised, the contract completion date shall be extended using the following formula:

[(partial option hours exercised)/(option hours listed in bid schedule for applicable bid lot)] x calendar days listed in the column entitled "Approx. Number of Contract Days for Option Item 0003" (or whichever Option Item is applicable) for the applicable bid lot

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, and to commence dredging no later than 20 calendar days after issuance of the Notice to Proceed.

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 chart in the paragraph entitled "Minimum Production Rate Requirements" located in the Dredging Region 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 Subpart 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-OCT 2018.

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

SECTION 00010 Page 9 projected contract award date.

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 10

FROM:

NAME AND TYPE [ ]

TYPE (walking, carriage, wires): [ ]

DREDGE PUMP, HP CUTTER, HP DIPPER OR BUCKET

OTHER TOTAL SHIFTS PER DAY

AUTHORIZED

DIMENSIONS

> WIDTH OF SWING

> WIDTH OF SWING

C/L STATIONS > WIDTH OF SWING

GMS/liter GMS/liter

TYPE

TYPE

MM TYPE

AMOUNT

AVERAGE WIDTH OF CUT (SWING) FEET

TOTAL ADVANCE THIS PERIOD FEET

TOTAL ADVANCE PREVIOUS TO THIS PERIOD FEET BOOSTER (in line) :

TOTAL ADVANCE TO DATE FEET

TOTAL LENGTH OF DISCHARGE PIPE: *SEE REVERSE SIDE HANDLING PIPE LINES HPL

AVERAGE LIFT FEET HANDLING ANCHOR LINES HAL

AVERAGE PUMP SPEED RPM CLEARING PUMP AND PIPE LINE CPPL

AVERAGE GROSS CY'S DREDGED PER PUMP HOUR CY/HR CLEARING CUTTER OR SUCTION HEAD CCSH

AVERAGE NET CY'S DREDGED PER PUMP HOUR CY/HR WAITING FOR SCOWS WFS

LF/HR TO AND FROM WHARF OR ANCHORAGE TFWA

CHANGING LOCATION OF PLANT ON JOB CLPJ

CUBIC YARDS REMOVED LOSS DUE TO OPPOSING NATURAL ELEMENTS LDNE

LOSS DUE TO PASSING VESSELS WVP

(1) CREDITED (pay place) SHORE LINE AND SHORE WORK SLSW

(2) GROSS (computed amount) WAITING FOR BOOSTER WFB

MINOR OPER. REPAIRS (explain in remarks) MOR

(1) CREDITED (pay place) WAITING FOR ATTENDANT PLANT WAP

(2) GROSS (computed amount) PREPARATION AND MAKING UP TOW PMUT

TRANSFERRING PLANT BETWEEN WORKS TPBW

(1) CREDITED (pay place) LAY TIME OFF SHIFT AND SATURDAYS LTOSS

(2) GROSS (computed amount) SUNDAYS AND HOLIDAYS SH

FIRE DRILL FD

MISCELLANEOUS (explain in remarks) MISC

TOTAL NON-EFFECTIVE WORKING TIME

DREDGE

TENDER #1

TENDER #2

SKIFF

CREW PCT OF TOTAL TIME IN PERIOD

SURVEY

BARGES

CRANE BARGE MAJOR REPAIRS AND ALTERATIONS

IDLER BARGE CESSATION

CUTTER-TYPE COLLISIONS

SPUD LENGTH MISCELLANEOUS (explain in remarks)

NUMBER OF TOTAL LOST TIME

INSPECTIONS PERCENTAGE OF TOTAL TIME

( ) NO

TOTAL TIME IN PERIOD

( ) YES

Version: April 2023 (Signature and Remarks required on reverse side)

DATE OR PERIOD

DREDGE TYPE:

cu. yds. cap.

BUCKET

CUTTERHEAD

DIPPER

DUSTPAN

RANGES - RT, CL, LT

HIRED LABOR

TOTAL NUMBER OF DAYS ON

WHICH WORK WAS DONE:

(not chargeable to cost of work)

GRAIN SIZE

MINIMUM

GAGE LOCATION

MAXIMUM

PROJECT

AND

ASSIGNMENT

DEPTHWIDTH

DUSTPAN SUCTION PIPE JET, HP

RANGES - RT, CL, LT

RANGES - RT, CL, LT

THRU: TO:

inch inside diameter discharge

REPORT NO.

SHOREDREDGE

WORK SCHEDULE

COMPLETION

CHARACTER

OF

MATERIAL

(leave blank if grab samples aren't taken)

(chargeable to cost of work)

CONTRACT OR

ORDER

NUMBER

WEATHER

CONDITION miles

AVERAGE

DEPTH

RIVER

STAGE

MM

NUMBER

BEFORE DREDGING

VISUAL MATERIAL

CLASSIFICATION

CHANNEL

CONDITION

ABSOLUTE DENSITY VOIDS RATIOIN PLACE DENSITY

ITEM

NO. OF TIMES

MVN FORM 4267

AVERAGE LINEAR FOOT PER HOUR

CONTRACT USE

ONLY

TOTAL EFFECTIVE AND NON-EFFECTIVE

ITEM

BY DIV & OCE PERSONNEL

ATTENDANT PLANT

HOURS

(If "YES", explain under remarks on back)

BY DISTRICT PERSONNEL

HAS ANYTHING DEVELOPED WHICH MIGHT LEAD TO A

CHANGE ORDER OR CLAIM?

TIME

NAME OR NUMBER

AMOUNT PREVIOUSLY REPORTED:

TOTAL AMOUNT DREDGED TO DATE:

PCT. OF NON-EFFECTIVE TIME

LOST TIME

REPORTS CONTROL SYMBOL

ENGCW-0-13

DAYS PER WEEK

PROPULSION

REPORT OF OPERATIONS -- PIPELINE, DIPPER OR BUCKET DREDGES

DAILY[ ] [ ] [ ]NEW WORK

MAINTE-

NANCE [ ] [ ] ANNUAL

CHARACTER OF

REPORT

DREDGE

IDLER BARGE USED (Yes/No):

PUMP

DISCHARGE

SIZE

DREDGE ADVANCE MECHANISM

PUMPING OR DREDGING

PCT. OF EFFECTIVE TIME

AFTER DREDGING

VISIBILITY

UNIT QUANTITY

(chargeable to cost of work)

AMOUNT DREDGED THIS PERIOD:

DISTRIBUTION OF TIMEWORK PERFORMED

EFFECTIVE WORKING TIME

NON-EFFECTIVE WORKING TIME

(chargeable to cost of work)

WIND (maximum velocity & direction)

BEFORE DREDGING

CONTRACTOR

AFTER DREDGING

AMOUNT

MINIMUM SOUNDING

OVERDEPTH

NUMBER OF

CREWMEMBERS

TIMETIME

(clear, cloudy, rain, snow, and fog)

LOCATION

(INCLUDE STATIONS

NUMBERS)

Section 35 20 23.23 ATTACHMENT

MVN Form 4267

FLOATING Marsh Trackhoes-30' Skidder Barges

PONTOONS Marsh Trackhoes-60'

Metal Metal Metal Marsh Buggies Breast

PVC PVC PVC Dozers Head

Flexifloat Other Other Front End Loaders Line

TOTAL LF Air Boats Other

ATV's

ELBOWS Stiff Y-Valves

Swivel Spreaders

SHORE DATE DATE TOTAL TOTAL TOTAL VISUAL MATERIAL

CONNECTION START FINISH GROSS CYS CREDITED CYS ACREAGE CLASSIFICATION

100% 70% 35% 0% 0% - MISC (Mob) TOTAL

BASE HRS

OPTION HRS

PREVIOUS HRS

TOTAL HRS

GAL.

GAL.

LBS.

GAL.

NAME: NAME: NAME:

TITLE: TITLE: TITLE:

Version: April 2023

INSIDE DIAMETER OF DISHARGE PIPE, IN

MVN FORM 4267

ANCHORS

DISPOSAL AREA SUMMARY

COORDINATE

TIME BREAKDOWN

TODAY QUANTITY PREVIOUS QUANTITY

OPERATING SUPPLIES

QUANTITY TO DATE

LUBRICANT (oil)

RECOMMENDED BY (Name, title, and signature) APPROVED BY (Name, title, and signature)

REMARKS:

SHORE AMOUNTSUBMERGEDAMOUNT AMOUNT

REMARKS

LUBRICANT (grease)

SUMMARY OF DREDGE DISCHARGE PIPELINE, DISPOSAL AREAS and TIME BREAKDOWN

SUBMITTEDED BY (Name, title, and signature)

ATTENDANT PLANT

DREDGE DISCHARGE PIPELINE DISPOSAL AREA EQUIPMENT ANCHORING SYSTEMS

NAME/LOCATION

FUEL (diesel)

WATER

TOTAL COMBINED

DISCHARGE, LF

Section 35 20 23.23 ATTACHMENT

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

SECTION 35 20 23.23 18

HYDRAULIC DREDGING - HOUMA NAVIGATION CANAL DREDGING REGION

PART 1 GENERAL

1.1 SCOPE

1.2 MEASUREMENT AND PAYMENT

1.2.1 Non-Standard Dredging Conditions

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 Houma Navigation Canal

3.1.2 Dredge Discharge Pipeline

3.1.3 Before and After Disposal Surveys

3.1.4 Before and After Dredging Cross Sections

3.1.5 Survey Data

3.1.6 Previous Dredging Contracts

3.2 MINIMUM PRODUCTION RATE REQUIREMENTS

3.3 HORIZONTAL AND VERTICAL CONTROL POINTS

ATTACHMENTS:

Houma Navigation Canal, Terrebonne Bay Maintenance Dredging Plates

SECTION 35 20 23.23 18 Page 1

SECTION 35 20 23.23 18

HYDRAULIC DREDGING - HOUMA NAVIGATION CANAL 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 Houma Navigation Canal 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

All costs for the work covered under this section shall be included in the contract unit price per hour in the "Houma Dredging" and "Houma Option Dredging" items on the bidding schedule.

1.2.1 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 Houma Navigation Canal where the dredging template yields less than a 150 foot swing width.

1.3 EXISTING STRUCTURES OR UTILITIES

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

Structure or Utility

Owner Information Approximate C/L Station

Elevation (feet MLG)

2.5-inch Oil Pipeline 2.5-inch Gas Pipeline 3-inch Gas Pipeline

Chevron 100 Northpark Blvd Covington, LA 70433

Mr. Ryan Rivault 985-714-1875 (Cell) 985-773-1754 (Office) ryan.rivault@chevron.com

Ms. Erin Dunaway 985-773-6554 (Office) erin.dunaway@chevron.com

1397+20 -23.0

SECTION 35 20 23.23 18 Page 2

Structure or Utility

Owner Information Approximate C/L Station

Elevation (feet MLG)

8-inch Pipeline (abandoned in-place)

Talos Energy (Stone Energy) 3861 Ambassador Caffery Pkwy Suite 200 Lafayette, LA 70503

Mr. Codi Fontenot 337-521-2162 (Office) 337-258-3763 (Cell) codi.fontenot@talosenergy.com

333 Clay St. #3300 Houston, TX 77002 713-328-3000

1494+99 -30.0

8-inch Pipeline 16-inch Pipeline 20-inch Pipeline

Hilcorp 1111 Travis St.

Houston, TX 77002

Mr. Bryan Beresik 346-237-2060 bberesik@hilcorp.com

Mr. Chad Terrebonne 985-594-1306 cterrebonne@hilcorp.com

1614+84 1615+35 1615+87

-26.0 -26.0 -25.0

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION

3.1 DREDGING

3.1.1 Dredging Region

3.1.1.1 Houma Navigation Canal

a. The authorized dimensions for Houma Navigation Canal are -16 feet Mean Lower Low Water (MLLW) by 150 feet bottom width from approximate Mile 10.5 (Station 1397+97) to Mile 2.5 (Station 1817+50). 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.

Dredging assignments are expected to fall between approximate Mile 10.5 and Mile 2.5.

b. Disposal of dredged material shall be at the Government's direction.

Approved disposal sites are the single point discharge (SPD) location at Mile 7.9 and the open water disposal site approximately 1500 feet west of

SECTION 35 20 23.23 18 Page 3 the channel centerline, as shown on the Houma Navigation Canal, Terrebonne Bay Maintenance Dredging Plates.

3.1.2 Dredge Discharge Pipeline

The Contractor shall provide 16,000 feet of serviceable floating or submerged pipeline and all associated equipment as directed by the Government. See Section 35 20 23.23, paragraph entitled "Dredge Discharge Pipeline", for additional information regarding pipeline requirements.

3.1.3 Before and After Disposal Surveys

The Contractor shall perform before and after disposal surveys at each disposal discharge location. The "Before" discharge surveys shall be taken as close as possible to the start of discharge operations and shall cover the anticipated limits of disposal. The "After" discharge surveys shall be taken as soon as possible after discharge operations have ceased and shall adequately cover the entire limits of disposal.

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 before and after disposal surveys shall be furnished to the Government in CAD and PDF formats including plan and section views. Survey data shall also be provided in ASCII XYZ format (easting, northing, elevation). All survey data shall be referenced to NAD83, State Plane Coordinates, LA South 1702 horizontally and MLLW vertically. All disposal surveys shall be submitted and accepted before final payment is made to the Contractor. In addition, the before and after disposal surveys shall be submitted to Mr. Jeff Corbino electronically at Jeffrey.M.Corbino@usace.army.mil.

3.1.4 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, as well as at all utility crossings and at all P.C.'s, P.T.'s, P.I.'s, and P.O.T.'s.

3.1.5 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 = 30 feet horizontal and 1 inch = 5 feet vertical.

3.1.6 Previous Dredging Contracts

Dredging occurs annually or near annually within segments of this dredging region. Contact the contract personnel listed at the beginning of the specifications for information regarding previous dredging contracts.

3.2 MINIMUM PRODUCTION RATE REQUIREMENTS

a. The following charts show 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 18 Page 4

HOUMA NAVIGATION CANAL MINIMUM PRODUCTION RATE TABLE #1

(4w+16s)/27 < cross-sectional quantity < (6.5w+42.25s)/27

Size of Dredge Pump Discharge (inches)

Submerged Pump

Minimum Output (cy/hr)

24 No 1087

24 Yes 1250

27 No 1460

30 or greater No 2099

30 or greater Yes 2656

HOUMA NAVIGATION CANAL MINIMUM PRODUCTION RATE TABLE #2

Cross-sectional quantity > (6.5w+42.25s)/27

Size of Dredge Pump Discharge (inches)

Submerged Pump

Minimum Output (cy/hr)

24 No 1359

24 Yes 1562

27 No 1825

30 or greater No 2624

30 or greater Yes 3320

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 "Houma Dredging" and "Houma 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

SECTION 35 20 23.23 18 Page 5 separately, so that the total payments available to the Contractor for exercised options remain unchanged.

3.3 HORIZONTAL AND VERTICAL CONTROL POINTS

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

SECTION 35 20 23.23 18 Page 6

INSIDE THE PLAN AREA, POLYCONIC PROJECTION - 1983 NORTH

AMERICAN DATUM IS SHOWN BY SOLID TICKS AND LAMBERT

CONFORMAL CONIC PROJECTION GRID IS SHOWN BY DASHED TICKS.

SEE PLATE 4.

1. FOR GENERAL NOTES,

NOTES:

BOTTOM EDGE OF CUT

BOTTOM EDGE OF CUT

CURVE DATAPIPELINE EL. -30.0' M.L.G.

C O

A S T

A L

P L

C

O M P A

N Y

(E

L

P A S

O

C

O R P O R

A T

IO

N

P R

O P O S E

D

C R

U D E

O

IL

P L

P R

O P O S E

D

B

U R

IA

L

P T

H

A C R

O S S

P E T

IT

C

A

IL

L O

U

(M

IN

IM

U M

B E

N E

A

M U

D

L

IN

E

= 18°40'25"

D = 00°28'46"

T = 1965.13'

R = 11952.10'

L = 3895.408'

T a m b o ur C ut o f f

M I L

E

.5

2-1/2" OIL LINE

2-1/2" & 3" GAS LINES

EL. -23.0' M.L.G.

CHEVRON

2-1/2" GAS LINES

3" GAS LINE

EL. -23.0' M.L.G.

CHEVRON

WELL

CHEVRON SLIP AND

BAY

LONG

W

ELSH

M

IL

E

CL CHANNEL

HOUMA NAVIGATION CANAL

P E

T I T

COUTEAU

CURVE DATA

P E

T I T

BAY

C A I L

L O

U

Az. 329° 11' 12.00" ( Geodetic )

SOUTHERN NATURAL GAS

6" PIPELINE EL -27.0' M.L.G.

M

IL

E

TENN. GAS P/L CO. 24"

PIPELINE EL. -30.0' M.L.G.

TENN. GAS P/L CO. 24"

PIPELINE EL. -24.0' M.L.G.

TENN. GAS P/L CO. 24"

PIPELINE EL. -20.0' M.L.G.

PLAINS PIPELINE, LP

PIPELINE EL. -50.0' MLG

WAITING ON AS-BUILT

P .T .1

.2

X ,4

,7

Y ,6

= 18°40'25"

D = 00°28'46"

T = 1965.13'

R = 11952.10'

L = 3895.408'

P .C

.8

P .T

.2

X

,4

,6

Y

,1

B A

Y O

U

C O

A S T

A L

P L

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P A S

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N

P R

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D

C R

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P L

P R

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D

B

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IA

P

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P E T

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C

A

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L O

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IN

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U M

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N E

A

U

D

L

IN

E

Coco drie

Little

BUMP PHOTOGRAPHY FLOWN IN 2022.

N

B A

Y

NEW ORLEANS DISTRICT

D

2 3

C

4 5

A

B

®of Engineers

US Army Corps

PLATE

E

R R

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O N

N E

P A

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IS

H L

A

C /L

S T

A

M

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E

.5

T

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/L S

T A

M

IL

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N

O N

-C O

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IN

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A N

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N C

A N

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R E

B O

N N

E B

A Y

M A

IN

T

E N

A N

C E

D R

E D

G

IN

G

Az. 309° 46' (Geo detic)

T E R R E B O N N E

P A R I S H, L A.

T E R R E B O N N E

P A R I S H, L A.

O a k

B a y o u

B a yo u

C

S

A

P .T

L A

P P

R O

X

L I

M I

F

R

E D

G I N

P

A

T E

M A

T

P R

O

A P

P R

O

BOTTOM EDGE OF CUT

BOTTOM EDGE OF CUT

T = 2078.47'R = 7620.91'L = 4058.24'

D = 00°45'07"

= 30°30'39"

INSIDE THE PLAN AREA, POLYCONIC PROJECTION - 1983 NORTH

AMERICAN DATUM IS SHOWN BY SOLID TICKS AND LAMBERT

CONFORMAL CONIC PROJECTION GRID IS SHOWN BY DASHED TICKS.

INSIDE THE PLAN AREA, POLYCONIC PROJECTION - 1983 NORTH

AMERICAN DATUM IS SHOWN BY SOLID TICKS AND LAMBERT

CONFORMAL CONIC PROJECTION GRID IS SHOWN BY DASHED TICKS.

BUMP PHOTOGRAPHY FLOWN IN 2022.

M I L

E

REAR LIGHT

Y= 258,427

Az. 309° 46' ( Ge odetic

CONTAINMENT

DIKEEXISTING

RANGE "A"

X= 3,508,674

T a m b o ur C ut o f f

REAR LIGHT

Y= 258,427

#20

BUOY

CONTAINMENT

DIKE

BAY CHALAND ISLAND

EXISTING

M I L

E

M I L

E

RANGE "A"

X= 3,508,674

HOUMA NAVIGATION CANAL

TALOS ENERGY RANGE "B"

FRONT LIGHT

BUOY #18

RANGE "A"X= 3,511,098

FRONT LIGHTRANGE "B"

FRONT LIGHT

BN #19

BN #17

M I L

E

RANGE "A"

Y= 251,689

X= 3,511,866Y= 250,562

D I S

P O

S A

L

I N

N

M

W

ELSH

X=3507617

Y=252118 S T

A .3

L breach breach breach breach breach breach

8" PIPELINE EL. -30' M.L.G.

breach breach breach breach breach breach

C/L STA 1494+99 (ABANDONED)

breach breach emergent mtl.

X= 3,509,76 breach breach

N

1552+69.80 C/

LP.C.

B A

Y

NEW ORLEANS DISTRICT

D

2 3

C

4 5

A

B

E

R R

E B

O N

N E

P A

R

IS

H L

A

C /L

S T

A

M

IL

E

.5

T

O C

/L S

T A

M

IL

E

.5

N

O N

-C O

N T

IN

U

O U

S P

L A

N

H O

U M

A N

A V

IG

A

T

IO

N C

A N

A L

T

E R

R E

B O

N N

E B

A Y

M A

IN

T

E N

A N

C E

D R

E D

G

Y= 252,302

1. FOR GENERAL NOTES, SEE PLATE 4.

NOTES:

M A

T

N

E

P L

A T

E

M A

T

N

E P

L A

T E

CURVE DATA

SPD MI. 7.9

INSIDE THE PLAN AREA, POLYCONIC PROJECTION - 1983 NORTH

AMERICAN DATUM IS SHOWN BY SOLID TICKS AND LAMBERT

CONFORMAL CONIC PROJECTION GRID IS SHOWN BY DASHED TICKS.

BUMP PHOTOGRAPHY FLOWN IN 2022.

A P

P R

O

A P

P R

O X

NOTES:NOTES:

1. FOR GENERAL NOTES, SEE PLATE 4.

BOTTOM EDGE OF CUT

BOTTOM EDGE OF CUT

BOTTOM EDGE OF CUT BOTTOM EDGE OF CUT

M I L

E

D I S

P O

S A

L I N

N

M

TERREBONNE BAY

Az. 340° 12' ( Geodetic )

TERREBONNE BAY

Y= 249 ,032

REAR LIGHT

RANGE "B"

X= 3,5 11,098

BN #17

M I L

E

Y= 249 ,032

REAR LIGHT

RANGE "B"

X= 3,514,958

HOUMA NAVIGATION CANAL

Y= 251 ,689

Y= 25 0,562

Y= 248,034

20" PIPELINE EL. -25.0' M.L.G.

16" PIPELINE EL. -26.0' M.L.G.

8" PIPELINE EL. -26.0' M.L.G.

Az. 340° 12' ( Geodetic )

I L

E

INNER LIMIT OF DISPOSAL

Az. 340° 12' ( Geodetic )

M I L

E

S T

A .3

L

N

HILCORP

NEW ORLEANS DISTRICT

D

2 3

C

4 5

A

B

E

R R

E B

O N

N E

P A

R

IS

H L

A

C /L

S T

A

M

IL

E

.5

T

O C

/L S

T A

M

IL

E

.5

N

O N

-C O

N T

IN

U

O U

S P

L A

N

H O

U M

A N

A V

IG

A

T

IO

N C

A N

A L

T

E R

R E

B O

N N

E B

A Y

M A

IN

T

E N

A N

C E

D R

E D

G

Az. 340°12'(Geodetic)

A

T

A

T E

M A

T

N

EP

L

A T

E

X= 3,5 12,08

61593+ 28.04

P.T.

X= 3,5 12,08

DISTRICT, ATCHAFALAYA RIVER & FLOODWAY, FOR HYDROGRAPH DATA.

CONTRACT. FOR GAGES 76305 & 88450, REFER TO WWW.RIVERGAGES.COM, NEW ORLEANS

THESE GAGES SHALL BE USED TO ESTABLISH VERTICAL CONTROL FOR THIS

(ADD 0.22' TO ADJUST TO MLLW)

0.0' GAGE DATUM = -0.18' NAVD88 (OPUS) = 0.22' MLLW (2012-2016) = 1.22' MLG

GAGE COORDINATES: N 29 11 13.3, W 90 36 33.6

FRONT RANGE (GAGE ID = 88455) IS A STAFF GAGE SET ON WEST SIDE OF USCG TOWER.

(ADD 0.51' TO ADJUST TO MLLW)

0.0' GAGE DATUM = 0.11' NAVD88 (OPUS) = 0.51' MLLW (2012-2016) = 1.51' MLG

GAGE COORDINATES: N 29 05 29.00, W 90 32 18.00

SIDE OF TIMBALIER ISLAND.

TIMBALIER ISLAND (GAGE ID = 88450) IS A STAFF GAGE ATTACHED TO DOCK ON BAY

(ADD (-)0.12' TO ADJUST TO MLLW)

0.0' GAGE DATUM = -0.52' NAVD88 (OPUS) = -0.12' MLLW (2012-2016) = 0.88' MLG

GAGE COORDINATES: N 29 15 15.30, W 90 39 48.70

COCODRIE BAYOU AT THE END OF HWY. 56 AT COCODRIE, LA 500 FEET WEST OF HWY END.

TO THE LOUISIANA LAND AND EXPLORATION BOAT DOCK ON THE NORTH BANK OF LITTLE

BAYOU PETIT CAILLOU AT COCODRIE (GAGE ID = 76305) IS A STAFF GAGE ATTACHED

VERTICAL CONTROL:

Y

,1

BOTTOM EDGE OF CUT

BOTTOM EDGE OF CUT

A P

P R

O X

M I L

E

5. THE SPD SHOWN ON THE PLATE REPRESENTS A "SINGLE POINT DISCHARGE" LOCATION.

VERIFIED IN THE FIELD BY THE CONTRACTOR PRIOR TO DREDGING IN THE AREA.

4. THE LOCATIONS, ALIGNMENTS AND CLEARANCES OF ALL PIPELINES SHALL BE

3. ALL AZIMUTHS ARE MEASURED FROM 0 DEGREES NORTH (GEODETIC).

2. SIDE SLOPES FOR ALL DREDGE CUTS ARE: 1V on 2H.

STATIONS 1397+97 to 1817+50 = 150'.

1. BOTTOM WIDTH FOR DREDGE CUT IS AS FOLLOWS:

NOTES:

HOUMA NAVIGATION CANAL

INNER LIMIT OF DISPOSAL

M I L

E

.5

M I L

E

M I L

E

M I L

E

N

NEW ORLEANS DISTRICT

D

2 3

C

4 5

A

B

E

R R

E B

O N

N E

P A

R

IS

H L

A

C /L

S T

A

M

IL

E

.5

T

O C

/L S

T A

M

IL

E

.5

N

O N

-C O

N T

IN

U

O U

S P

L A

N

H O

U M

A N

A V

IG

A

T

IO

N C

A N

A L

T

E R

R E

B O

N N

E B

A Y

M A

IN

T

E N

A N

C E

D R

E D

G

CHANNELLC

A

T

N

E

P L

A T

E

P .T

L

L I

M

E D

G I N

G

A P

P R

O X

P .C

.5

X

,5

,3

BUMP PHOTOGRAPHY FLOWN IN 2022.

INSIDE THE PLAN AREA, POLYCONIC PROJECTION - 1983 NORTH

AMERICAN DATUM IS SHOWN BY SOLID TICKS AND LAMBERT

CONFORMAL CONIC PROJECTION GRID IS SHOWN BY DASHED TICKS.

INSIDE THE PLAN AREA, POLYCONIC PROJECTION - 1983 NORTH

AMERICAN DATUM IS SHOWN BY SOLID TICKS AND LAMBERT

CONFORMAL CONIC PROJECTION GRID IS SHOWN BY DASHED TICKS.

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

SECTION 35 20 23.23 19

HYDRAULIC DREDGING - UPPER BARATARIA BAY WATERWAY DREDGING REGION

PART 1 GENERAL

1.1 SCOPE

1.2 MEASUREMENT AND PAYMENT

1.2.1 Base Item: Preparatory Work For Barataria Bay - Lower Disposal

Area

1.2.2 Base Item: Preparatory Work For Barataria Bay - Upper Disposal

Area

1.2.3 Option Item: Bird Nesting Prevention and Avoidance Measures

1.2.4 Non-Standard Dredging Conditions

1.3 EXISTING STRUCTURES OR UTILITIES

1.4 AERIAL PHOTOGRAPHY DOCUMENTATION

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION

3.1 DREDGING

3.1.1 Upper Barataria Bay Waterway Dredging Region

3.1.2 Disposal of Dredged Material

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 COLONIAL NESTING BIRDS

3.2.1 General

3.2.2 Implementation and Reporting

3.2.3 No Work Distances

3.2.4 Bird Nesting Prevention and Avoidance Measures

3.2.5 Discovery of Bird Nests at the Work Site

3.3 PREVIOUS DREDGING CONTRACTS

3.4 MINIMUM PRODUCTION RATE REQUIREMENTS

3.5 HORIZONTAL AND VERTICAL CONTROL POINTS

ATTACHMENTS:

Upper Barataria Bay Waterway Maintenance Dredging Plates

SECTION 35 20 23.23 19 Page 1

SECTION 35 20 23.23 19

HYDRAULIC DREDGING - UPPER BARATARIA BAY WATERWAY 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 Upper Barataria Bay Waterway 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

All costs for the work covered under this section shall be included in the contract unit price per hour in the "Barataria Bay Dredging" and "Barataria Bay Option Dredging" items on the bidding schedule except for Base Item "Preparatory Work For Barataria Bay - Lower Disposal Area", Base Item "Preparatory Work for Barataria Bay - Upper Disposal Area", and Option Item "Bird Nesting Prevention and Avoidance Measures". Once dredging operations are complete in the Barataria Bay Channel, all costs associated with the final demobilization of the Contractor's plant and equipment shall be included in the contract job price in the "Mobilization and Demobilization" item on the bidding schedule.

1.2.1 Base Item: Preparatory Work For Barataria Bay - Lower Disposal Area

All costs associated with the towing of the dredge and attendant plant from the Houma Navigation Canal Dredging Region to the Upper Barataria Bay Waterway Dredging Region starting from the time material stops flowing out of the discharge pipeline in the Houma Navigation Canal, all costs associated with the mobilization of any dredge plant required for the Upper Barataria Bay Waterway Dredging Region that is in excess of what was required at the Houma Navigation Canal Dredging Region, and all costs associated with preparing for disposal in the Lower Disposal Area shall be included in the job price in the "Preparatory Work For Barataria Bay - Lower Disposal Area" item on the bidding schedule. It is the Government's intent for dredging operations to commence in the upper reach of the Barataria Bay Waterway prior to the dredge working in the Entrance "Y" location near the Gulf Intracoastal Waterway.

1.2.2 Base Item: Preparatory Work For Barataria Bay - Upper Disposal Area

All costs associated with preparing the Upper Disposal Area for placement of dredged material shall be included in the job price in the "Preparatory Work For Barataria Bay - Upper Disposal Area" item on the bidding schedule.

This includes all operations necessary to create the access corridors needed for dredged material placement and all costs associated with the creation or refurbishment of earthen dikes, if they are needed to prevent dredged material from flowing outside of the disposal area limits shown on the plate.

SECTION 35 20 23.23 19 Page 2

1.2.3 Option Item: Bird Nesting Prevention and Avoidance Measures

All costs associated with Bird Nesting Prevention and Avoidance Measures shall be included in the contract unit price per day in the "Bird Nesting Prevention and Avoidance Measures" option item on the bidding schedule.

Pay time for this option item will be measured by the day. A day of performing the bird nesting prevention measures is defined as beginning at 0000 hours and ending at 2400 hours. Portions of a day when the nest prevention measures are required will be considered as a full day. Nest prevention measures shall be performed as described in the paragraph entitled "Bird Nesting Prevention and Avoidance Measures". Price and payment shall constitute full compensation for furnishing all equipment, labor, materials, supplies, supervision, removal of nest prevention measures, and all operations incidental thereto.

1.2.4 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 location within the Upper Barataria Bay Channel where the dredging template yields less than a 125 foot swing width.

1.3 EXISTING STRUCTURES OR UTILITIES

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

Upper Reach Structure or Utility

Owner Information Approximate C/L Station

Elevation (feet MLG)

18" Waterline Jefferson Parish Public Utility

1221 Elmwood Park Blvd Suite 909 Jefferson, LA 70123 Mr. Sidney Bazley 504-736-6744 SBazley@jeffparish.net

Runs parallel to channel

Unknown

12" Waterline Jefferson Parish Public Utility (see above)

1608+37.72 Unknown

16" Waterline to Grand Isle

Jefferson Parish Public Utility (see above)

Runs parallel to channel

Unknown

SECTION 35 20 23.23 19 Page 3

Utility

Owner Information Approximate C/L Station

Elevation (feet MLG)

13.8kV submerged cable

Entergy Louisiana, Inc.

Mr. Terry Thompson 985-850-1253 TThomps@entergy.com

1593+68.00 -18.0' MLG

12" Pipeline Shell

Mr. Damian Cambre 504-465-6878(ofc) 225-380-9089(cell) damian.cambre@shell.com

1587+55.85 -21.0' MLG

12" Pipeline Shell (see above)

1584+28.85 Unknown

16" Chalmette Liquids Propylene Pipeline

Enbridge Midcoast Energy

Mr. Mike Brock 903-431-9993 mikeb@sulphurriver.com

1549+31.50 -17.0' MLG

16" Montegut-Gloria Natural Gas Pipeline

Koch Pipeline P.O. Box 1229 Kenner, LA 70062

1548+37.20 Unknown

24" Crude Oil Pipeline

Harvest Midstream Company

1111 Travis St.

Houston, TX 77002 Ms. Katina Cortez KCortez@harvestmidstream.com Mr. Travis Jones TJones@harvestmidstream.com

1422+01.16 -22.0' MLG

12" Lake Enfermer Natural Gas Pipeline

Koch Pipeline (see above)

1421+76.85 Unknown

24" Pipeline Harvest Midstream Company (see above)

1421+70.93 Unknown

24" Crude Oil Pipeline

BP Pipeline Company

1901 Engineers Road Belle Chasse, LA 70037 360-967-9466 bpPipelinesROW@bp.com

1420+32.98 -25.0' MLG

SECTION 35 20 23.23 19 Page 4

Utility

Owner Information Approximate C/L Station

Elevation (feet MLG)

24" Oil Flowline Harvest Midstream Company (see above)

1413+86.35 Unknown

24" Crude Oil Pipeline

PWMS 1378+54.90 Unknown

16" Pipeline Houston Energy Runs parallel to channel and waterline

Unknown

6" Pipeline Manti Exploration Runs south of Lower

Disposal Area

Unknown

Entrance "Y" Location

3" Pipeline (abandoned)

Bateman Drilling 12+50.09 crosses west leg

Unknown

20" Waterline Jefferson Parish Public Utility (see above)

7+56.92 crosses west leg (and runs parallel to channel)

-22.0' MLG

6" Pipeline (abandoned)

Texas Pipeline 1899+08.26 crosses north leg

Unknown

6" Pipeline (abandoned)

Atmos Energy Corporation 1898+85.68 crosses north leg

Unknown

8" Waterline Jefferson Parish Public Utility (see above)

1879+93.04 crosses north leg

-22.0' MLG

1.4 AERIAL PHOTOGRAPHY DOCUMENTATION

The Contractor shall provide aerial photography documentation of the worksite and construction activities during the contract duration. At a minimum, the proposed disposal areas shall be flown two (2) times; namely:

prior to initiation of dredging and upon completion of disposal activities. During the flights, the significant features of work (dredge plant, discharge site, working equipment, etc.) shall be captured. In general, sufficient images shall be taken to thoroughly cover the project.

All images must be sharp, clear, relevant and available in full JPEG format. The Contractor shall document/monitor all construction activities, before and after construction using aerial photography at oblique angles.

The deliverables shall be still photos that cover the extent of the contract operations. All photographs provided shall be labeled with the

SECTION 35 20 23.23 19 Page 5 following: contract number, date of photography, and photographic company name. Photographer shall have a minimum of 3 years experience. The Government is granted unlimited use of all images without further costs.

The Contractor shall electronically submit the photographs in PDF format to the respective area office personnel and to Mr. Jeff Corbino at Jeffrey.M.Corbino@usace.army.mil.

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION

3.1 DREDGING

3.1.1 Upper Barataria Bay Waterway Dredging Region

The authorized dimensions for the Upper Barataria Bay Waterway are -12 feet Mean Low Gulf (MLG) by 125 feet bottom width. The Contractor shall be aware that the Hwy 302 bridge crossing the Barataria Bay Waterway at the town of Lafitte is permanently damaged and is no longer moveable. This scope of work includes dredging below and above this bridge. As shown on the Upper Barataria Bay Waterway Maintenance Dredging Plates, this dredging region includes the upper reach of the Barataria Bay Waterway and the Entrance "Y" location near the Gulf Intracoastal Waterway. In the upper reach of the Barataria Bay Waterway, the approximate limits of dredging are from Station 1603+00 to Station 1333+00. In the Entrance "Y" location, the approximate limits of dredging on the north leg are from Station 1902+47.48 to Station 1876+50, and the approximate limits of dredging on the west leg are from Station 18+14.50 to Station 0+00 (Station 0+00 = Station 1884+00). The Administrative Contracting Officer 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 2 feet below the authorized elevation and may be specified above the authorized dimensions when determined to be beneficial to the Government.

3.1.2 Disposal of Dredged Material

Disposal of dredged material shall be at the Government's direction. The disposal areas are described below and are shown on the Upper Barataria Bay Waterway Maintenance Dredging Plates. No dredged material shall at any time be discharged directly upon existing marshland/wetland, and the use of marsh buggies or other wheeled or tracked vehicles are not permitted over vegetated marsh. All access shall be via the Gulf Intracoastal Waterway and the Barataria Bay Waterway.

a. Lower Disposal Area: Material excavated from the upper reach of the Barataria Bay Waterway shall be placed in the Lower Disposal Area. Material deposited in this area shall be discharged unconfined in open water.

Dredged material shall be deposited in such a manner as to create continuous areas of disposal adjacent to existing marshland in a near uniform elevation of +4.5' MLG.