21B0006 AMEND_0001 (signed).pdf

W912P821B0006

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00100 - INSTRUCTIONS TO BIDDERS

The following have been added by full text:

AMEND 0001

AMEND 0001:

SUBJECT: Mississippi River, Baton Rouge to Gulf of Mexico, Southwest Pass Hopper Dredge Contract No. 1-2021, Plaquemines Parish, Louisiana (OM-21-001). Solicitation No. W912P821B0006.

1. Page 2, Solicitation Letter, and Magnitude of Delete the first and second sentence equipped self- propelled trailing suction type hopper dredge. Work will be performed in the Mississippi River and Southwest Pass Dredging Region, the Calcasieu River Bar Channel Dredging Region, and possibly any secondary dredging

2. Standard Form 1442, box 10, fourth paragraph: Delete the first and second sentence and replace with the -propelled trailing suction type hopper dredge. Work will be performed in the Mississippi River and Southwest Pass Dredging Region, the Calcasieu River Bar Channel Dredging Region, and possibly any secondary dredging

3. Standard Form 1442, box 11:

than 1 December 2021 and no later than 26 December

4. Project Table of Contents:

insert the following:

35 01 50.73 SURVEYS

5. Delete this section in its entirety and replace with the attached

Section 00010.

6. Section 00700, FAR Clause 52.211-10 "Commencement, Prosecution, and Completion of Work (Apr 1984)": Delete this clause in its entirety and replace with the following:

-10 COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK (APR 1984)

The Contractor shall be required to (a) commence work under this contract as described in Section diligently, and (c) complete the entire work ready for use not later than as described in Section 00010, paragraph entitled of Contr

7. Add FAR Clause 52.236-

1984) - Alternate along with the following:

Note: This clause applies to the Calcasieu River Bar Channel Dredging Region

8. Section 00800, paragraph 3.1 of subparagraph a: Delete the first and second sentences and replace with the of the dredge and attendant plant and commencement of dredging shall be completed as described in Section 00010, paragraph entitled

For bidding purposes, the delivery site will be at mile -1.7 of the Calcasieu River (the seaward end of the rock jetties) and Mile 0 of the Mississippi River. If the starting location for the dredge requires initial mobilization to another dredging region, an equitable adjustment will be made for any additional costs if it is determined that additional costs were incurred due to the change of delivery location (see Section 35 20 23.23, paragraph entitled "Mobilization and Demobilization for Both Dredging

9. Delete the first approximate duration as described in Section 00010, paragraph

10.

Calcasieu River Bar Channel Dredging Region, if the Contractor cannot provide the inspector an office on board the dredge that meets the contract requirements, the Contractor shall provide, with the approval of

11. - In last paragraph, delete the first sentence and replace with the following: approval of the - drawings, the drawings will become final and shall be uploaded to RMS as a closeout

12. Section 01 33 00, Insert the attached Submittal Register for Calcasieu

River Bar Channel at the end of this Section.

13. Delete subparagraphs a and b and replace with the following:

a. For Mississippi River and Southwest Dredging Region, required turtle monitoring/protection equipment will not be measured, with the exception of National Marine Fisheries Service (NMFS) Approved Protected Species Observers and sea turtle and sturgeon trawling and relocation if the contract clause entitled "Changes" (FAR 52.243-4) is invoked for the NMFS- Approved Protected Species Observers or sea turtle and sturgeon trawling and relocation requirements. If the contract clause entitled "Changes" (FAR 52.243-4) is invoked for NMFS- Approved Protected Species Observers, pay time for NMFS-Approved Protected Species Observers will be measured by the day.

The day is defined as a 24-hour period beginning at 0000 hours and ending at 2400 hours.

Portions of a day when observers are required to be present on the dredge will be considered as a full day.

b. For Calcasieu River Bar Channel Dredging Region, environmental protection requirements, required National Marine Fisheries Service (NMFS)-approved protected species observers and sea turtle monitoring/protection equipment will not be measured, with the exception of sea turtle and sturgeon trawling and relocation if the contract clause entitled "Changes" (FAR 52.243-4) is invoked for the sea turtle and sturgeon trawling and relocation requirements.

14. Section 01 57 20.00 10, paragraph 1.5.2 Delete this paragraph in its entirety and replace with the following:

1.5.2 Payment

No separate payment will be made for work covered under this section. Payment for these environmental protection requirements shall be included in the and

Payment for turtle monitoring/protection equipment shall be included in the items on the bidding schedule.

For the Mississippi River and Southwest Pass Dredging Region, payment for NMFS- Approved Protected Species Observers and sea turtle and sturgeon trawling and relocation requirements shall be made by an equitable adjustment if the contract clause entitled

-4) is invoked.

For the Calcasieu River Bar Channel Dredging Region, payment for NMFS-Approved Protected Species Observers shall be included in the dredging and option dredging items (Item Numbers 0004 and 0005). Sea turtle and sturgeon trawling and relocation requirements shall be made by an equitable adjustment if the contract clause entitled 52.243-4) is invoked.

15. Section 01 57 20.00 10, paragraph - Add the following to the beginning of the first sentence, the Mississippi River and Southwest Pass Dredging Region, following at the end of this paragraph:

In the Calcasieu River Bar Channel Dredging Region, no separate payment will be made for NMFS- Approved protected species observers, accommodations and meals for NMFS- Approved protected species observers, transportation of injured sea turtles and transportation of NMFS-Approved protected species observers. Payment for NMFS-Approved Protected Species Observers, accommodations and meals for NMFS-Approved protected species observers, transportation of injured sea turtles and transportation of NMFS-Approved protected species observers shall be included in Bar Option

16. Add the following at the regions which require equipment as described in paragraph entitled "Additional Sea Turtle Requirements", the act of placing a draghead on the bottom is a primary cause of sea turtle takes because it causes the sea turtle to be trapped directly beneath the draghead. The primary adjustment for providing additional mixing water to the suction line shall be through water intake ports on top of the draghead as described in paragraph 35 20 23.23-

17. Add the following If siltation barriers are used, they will be made of material in which manatees cannot become entangled, are properly secured, and are regularly monitored to

18. -Approved Protected Species Observer paragraph applies to the Calcasieu River Bar Channel Dredging Region. This paragraph only applies to the Mississippi River and Southwest Pass Dredging Region if the contract clause entitled

(FAR 52.243-4) is invoked for the NMFS-Approved Protected Species Observer

19. Delete the first sentence of this Bar Channel Dredging Region. This paragraph only applies to the Mississippi River and Southwest Pass Dredging -4) is invoked for the NMFS-Approved Protected Species Observer

20. Section 01 57 20.00 10, Add the following after the fifth sentence, the Contracting Officer or his/her representative determines there is excessive screen clogging, the Contractor shall increase the screen openings to six inch by six inch or larger. Therefore, the Contractor shall have screens on-board with screen openings of six inch by six inch and nine inch by nine inch. If the Contractor is directed to change to a larger screen size but does not have the directed screen size on-board, the Contractor will be placed on 0% pay time hours until the directed screen size is in-place and dredged material starts flowing into

21. Delete the second sentence and replace with the following: of Engineers, New Orleans Area Office or Lafayette Area Office, Administrative Contracting Officer (for the applicable dredging reg

22. Section 35 01 50.73, Add the attached section 35 01 50.73 after Section 01 57 20.00 10.

23. Add the following sentence to this paragraph, Southwest Pass Dredging Option D for the Calcasieu

River Bar Channel Dredging Region, respectively, as applicable to each

24. Delete this paragraph in its entirety and replace with the following:

1.2.1 Mobilization and Demobilization for Both Dredging Regions

An item to cover the cost of mobilization and demobilization of the Contractor's plant and equipment under this contract is included and will be paid for as stipulated in the Contract Clause entitled "Payment for Mobilization and Demobilization" (DFARS 252.236-7004). The Contractor shall be responsible for staking its own approach for mobilization and demobilization, for its dredge and attendant plant, from the plants location where last employed to both dredging regions. The order of work is described in paragraph entitled "Order of Work". The Government will not provide any payments to the Contractor, in addition to the contract job price for "Mobilization and Demobilization for Both Dredging Regions".

25. Delete the first and second sentences Option Dredging

Quantities" for Dredging and Option Dredging are 100% pay time hours. For the purposes of determining elapsed time and the completion time of the contract, 100% pay time, 80% pay time, 75% pay time, 60% pay time, 48% pay time, 45% pay time, 35% pay time, 21% pay time, and 0% pay time, will be considered as 100%, 80%, 75%, 60%, 48%, 45%, 35%, 21%, and 0% of the hourly rate,

26. Delete this subparagraph and replace with Travel time to move the dredge and attendant plant between assignments in the Calcasieu River Bar Channel Dredging Region and assignments in the Mississippi River and Southwest Pass Dredging Region, after the initial move between these dredging regions that is included in the Mobilization and Demobilization for Both Dredging Regions (Item

27. Add the following at the end of this paragraph:

(10) Time to change the hopper turtle screens size, as described in Section 01 57 20.00 10 paragraph entitled if the dredging cycle is interrupted.

(11) Travel time when moving from an assignment in one of the Primary Dredging Regions to another assignment in a Secondary Dredging Region.

28. Delete this subparagraph Travel time to move the dredge and attendant plant between assignments in the Calcasieu River Bar Channel Dredging Region and assignments in the Mississippi River and Southwest Pass Dredging Region, after the initial move between these dredging regions that is included in the Mobilization and Demobilization for Both Dredging Regions (Item

29. Section 35 20 23.23 paragraph 1.2.2.1.f Pay Time subparagraph 1: Add the following at the end of Travel time when moving from an assignment in one of the Primary Dredging Regions to another assignment

30. Delete this subparagraph and replace with the following: Any time not covered under "100% Pay Time Hours", "80% Pay Time Hours", "75% Pay Time Hours", "60% Pay Time Hours", "48% Pay Time Hours", "45% Pay Time Hours", "35% Pay Time Hours", and "21% Pay

31. Add the following at the end of this paragraph:

(22) Time lost due to the Contractor not having the hopper turtle screens specified in Section 01 57 The Contractor will remain on 0% Pay Time

Hours until the directed screen size is in-place and dredged material starts flowing into the

32. Section 35 20 23.23 paragraph 1.2.2.1.k for Dredge Delete the second sentence and replace time, 60% time, 48% time, 45% time, 35% time, 21% time, or 0%

33. At the end of this paragraph, add the attached subparagraph

34. Section 35 20 23.23, At the end of this paragraph, add the attached subparagraph

35. After paragraph 1.2.2.1

36. Add the following at the end of this subparagraph:

Or

US Army Corps of Engineers Lafayette Area Office ATTN: Mr. John Page, CEMVN-CDL 646 Cajundome Boulevard, Suite 301 Lafayette, LA. 70506

37. Delete this subparagraph and replace with the following:

d. If the substitute dredge does not have the same number of base dredging hours as the original dredge as shown in the table in paragraph entitled "Dredging and Option Dredging Quantities" for the respective dredging region, then the contract unit price per hour for the substitute dredge will be computed separately for the dredging payment items as follows:

Substitute Dredge Hourly Rate = (Original Base Item Estimated Quantity) x (Original Base Item Unit Price) (Estimated Quantity from Base Item for Substitute Dredge from table referenced above)

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 remains unchanged.

38. Section 35 20 23.23, paragraph 2.1.3 of subparagraph a(1): Delete this subparagraph and dredging region, the dredge listed on the bid will be considered the primary dredge for each dredging

39. Section 35 20 23.23, paragraph 2.1.3 of subparagraph b: Delete subparagraphs 2 and 3 and replace with the following:

(2) The additional dredge(s) will be paid only for 100% Pay Time. Time classified as 80%, 75%, 60%, 48%, 45%, 35%, and 21% will be considered 0% pay time and will not be paid for.

(3) If the additional dredge(s) does not have the same number of base dredging hours as the primary dredge, as shown in the table in paragraph entitled "Dredging and Option Dredging Quantities" for the respective dredging region, payment for the additional dredge(s) will be determined using a rate computed as follows:

Additional Dredge Hourly Rate = (Primary Base Item Estimated Quantity) x (Primary Base Item Unit Price) (Estimated Quantity from Base Item for Additional Dredge from table referenced above)

40. Delete the table entitled

Dredge Production

41. Section 35 20 23.23, paragraph 2.1.4 subparagraph f: In the second sentence, after Calcasieu River Bar Channel

42. Section 35 20 23.23, paragraph 2.2 subparagraph c: Add the following after the first sentence:

Gage 73650 is located at lat/long 29.77580550, -93.34791660.

gage NAVD88 (2009.55) = =

43. In the following, region,

44. a(2): At the end Dredging Region and by means of the survey boat described in Section 35 01 50.73, paragraph entitled River Bar Channel D

45. Add the following subparagraph a at the beginning of this paragraph, and rename the existing paragraphs to b, c and d, respectively.

a. Dredging shall be performed in the following order:

(1) Calcasieu River Bar Channel Dredging Region;

(2) Mississippi River and Southwest Pass Dredging Region.

46. Move this paragraph after paragraph 3.3.1 River and Southwest Pass, and renumber to paragraph

3.3.2. - -43 feet Mean Lower filled with rocks sunk at approx.

Mile -3.7 on the west side of the Calcasieu River Bar Channel in October of 2020. The rock barge filled with rocks was removed in November of 2020. However, the Contractor should exercise caution and be aware that some rocks may still exist in the channel in the vicinity of Mile

47. Section 35 20 23.23, para 3.4.2 River Crossings Between New Orleans and Baton Rouge, Contractor is issued an assignment to dredge in this secondary dredging region, payment will be made at the Southwest Pass Dredging and Southwest Pass Option Dredging contract unit price per

48. Add the following subparagraphs d and e at the end of this paragraph:

d. Prior to dredging over a utility crossing within the dredging channel, the Contractor shall obtain a cross-section survey of the channel showing an accurate location and elevation of the utility provided by the utility owner.

e. UTILITY MARKING REQUIRED. Prior to dredging within 500 feet of a utility crossing, the Contractor shall mark the established location of utility by placing one Coast Guard approved yellow flashing buoy on each side and outside of the authorized channel to accurately mark the location of the utility within view of the Dredge Leverman. The Contractor shall immediately remove such buoys upon completion of dredging in the area of the utility.

49. Add the following row after the first row in the table:

Gulf South 520 Alliance St Kenner, LA 70062 Attn: Gerald Roser

Pipelines (Inactive)

11.7 AHP Unknown

Gerald Roser Gerald.Roser@bwpipelines.com Harold Sylve (Field POC) 504-415-1864 Harold.Sylve@bwpipelines.com

50. River Bar paragraph.

51. Section 35 20 Dredging Bar Channel Hopper Dredge, Plate 1 of 3: Delete Plate 1 and replace with the attached Plate 1.

52. and Pass Maintenance Dredging Bar Channel Hopper Dredge, Plate 3 of 3: For the 30" gas pipeline at C/L Sta. 1188+49, change the owner name from "Kinetica Partners" to "Avocet LNG". For the 8" gas pipeline at approximate C/L Sta. 1408+54, change the owner name from "W&T Offshore" to "Anadarko Petroleum".

SECTION 00010 Page 1

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001

SECTION TABLE OF CONTENTS

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

SECTION 00010

BID SCHEDULE

PART 1 GENERAL

1.1 BIDDING SCHEDULE

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 2

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001

SECTION 00010

BID SCHEDULE

PART 1 GENERAL

1.1 BIDDING SCHEDULE

SECTION 00010 - BIDDING SCHEDULE

MISSISSIPPI RIVER, BATON ROUGE TO GULF OF MEXICO, SOUTHWEST PASS

HOPPER DREDGE CONTRACT NO. 1-2021

PLAQUEMINES PARISH, LOUISIANA

SOLICITATION NO. W912P821B0006

Bid Item

Description Estimated Quantity

Unit Unit Price

Total Price

0001 Mobilization & Demobilization for Both Dredging Regions

1 Job

Mississippi River and Southwest Pass Dredging Region

Dredge Name:

0002 Southwest Pass - Dredging

* Hour

Option

Southwest Pass - Option Dredging

* Hour XXXXXX

Calcasieu River Bar Channel Dredging Region Dredge Name:

0004 Calcasieu Bar - Dredging

* Hour

Option

Calcasieu Bar - Option Dredging

* Hour XXXXXX

Total:

*SEE BID FORM NOTES

SECTION 00010 Page 3

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001

1.2 BID FORM NOTES

a. Bidders shall bid on all items including optional items. Failure to bid on all items will result in a non-responsive bid.

b. Bidders shall use the Item Number 0002 unit price to compute Option Item Number 0003 total price and Item Number 0004 unit price to compute Option Item Number 0005 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 NTP, the Contractor shall initiate a meeting to discuss the submittal process with the Administrative Contracting Officer or his authorized representative.

Physical work cannot start until the Quality Control 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:

http://www.mvn.usace.army.mil/BusinessWithUs/Contracting/RapidVendorPayment.aspx

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

g. For the Mississippi River and Southwest Pass Dredging Region - Bidders shall indicate the name of the dredge on their bid that they intend to use in this dredging region, this will be considered the primary dredge for this dredging region. For Item Numbers 0002 and 0003, bidders shall insert the appropriate number of hours obtained from the table found in Section 35 20 23.23, paragraph entitled "Dredging and Option Dredging Quantities", for the dredge indicated on their bid for this dredging region. In the case of variation between the number of hours shown on the above referenced table, for the dredge indicated on the bid, the Government will correct the bidder's number of hours to correspond with the dredge listed on the bid, and the bid will be evaluated by the corrected computation using the bidder's unit price.

h. For the Calcasieu River Bar Channel Dredging Region - Bidders shall indicate the name of the dredge on their bid that they intend to use in this dredging region, this will be considered the primary dredge for this dredging region. For Item Numbers 0004 and 0005, bidders shall insert the appropriate number of hours obtained from the table found in Section 35 20 23.23, paragraph entitled "Dredging and Option Dredging Quantities", for the dredge indicated on their bid for this dredging region. In the case of variation between the number of hours shown on the above referenced table, for the dredge indicated on the bid, the

SECTION 00010 Page 4

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001

Government will correct the bidder's number of hours to correspond with the dredge listed on the bid, and the bid will be evaluated by the corrected computation using the bidder's unit price.

1.3 BIDDING

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 different production rate and capacity, the required dredging quantities and any optional dredging quantities are based on an estimated quantity of shoal material and on the tested production rate of each dredge class.

b. Award will be made to that responsible Bidder presenting the lowest-priced responsive bid in response to this solicitation.

c. The hourly quantities shown for Item Numbers 0002, 0003, 0004 and 0005 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 or 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 dredge and attendant plant will be retained for an approximate number of days according to the tables below starting on 26 December 2021 or commencement of dredging, whichever occurs first. If the Contractor is instructed to cease dredging at a dredging region before the work has been completed, the contract duration clock stops when the dredge ceases dredging at that location. The contract duration clock will resume when the Contractor recommences dredging at that location.

The time required for completion of the contract shall be established as the number of calendar days listed in columns "Approximate Number of Days for Item 0002" and "Approximate Number of Days for Item 0004", for the applicable dredges.

In the event that Option Item 0003 is fully exercised under the terms

SECTION 00010 Page 5

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001 of this contract, the time required for completion of the contract shall be extended by the number of calendar days listed in column "Approximate Number of Days for Option Item 0003", for the applicable dredge. In the event Option Item 0003 is partially exercised, the contract completion date shall be extended using the following formula:

Option Item 0003 = [(partial option hours exercised)/(option hours listed in applicable dredging region table below for applicable dredge)] x (calendar days listed in column "Approximate Number of Days for Option Item 0003" for the applicable dredge)

In the event that Option Item 0005 is fully exercised under the terms of this contract, the time required for completion of the contract shall be extended by the number of calendar days listed in column "Approximate Number of Days for Option Item 0005", for the applicable dredge. In the event Option Item 0005 is partially exercised, the contract completion date shall be extended using the following formula:

Option Item 0005 = [(partial option hours exercised)/(option hours listed in applicable dredging region table below for applicable dredge)] x (calendar days listed in column "Approximate Number of Days for Option Item 0005" for the applicable dredge)

APPROXIMATE CONTRACT DURATION TABLE FOR

MISSISSIPPI RIVER AND SOUTHWEST PASS DREDGING REGION

Bid Lot

Dredge Name Pump Inside Dia.

(inches)

Hopper Size

(Cubic Yards)

Number of

Dragarms

Approximate Number of Days for Item 0002

Approximate Number of Days for Option

Item 0003

1 Ellis Island 34 14788 2 153 76

2 Glenn Edwards 38 12430 2 159 79

3 Stuyvesant 33.5 9400 2 201 100

4 Terrapin Island 33.5 6300 2 239 120

5 Magdalen 39.37 8300 1 255 127

NOTE: The number of hours associated with each dredge on the table found in Section 35 20 23.23, paragraph entitled "Dredging and Option Dredging Quantities", are estimated quantities.

SECTION 00010 Page 6

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001

APPROXIMATE CONTRACT DURATION TABLE FOR

CALCASIEU RIVER BAR CHANNEL DREDGING REGION

Bid Lot

Dredge Name Pump Inside Dia.

(inches)

Hopper Size

(Cubic Yards)

Number of

Dragarms

Approximate Number of Days for Item 0004

Approximate Number of Days for Option

Item 0005

1 Ellis Island 34 14788 2 49 49

2 Glenn Edwards 38 12430 2 50 50

3 Stuyvesant 33.5 9400 2 59 59

4 Terrapin Island 33.5 6300 2 64 64

5 Magdalen 39.37 8300 1 72 72

6 Liberty Island 31.5 6540 2 72 72

7 Bayport 30 4815 2 72 72

8 Lindholm 28 4000 2 75 75

9 Dodge Island 27 3600 2 80 80

10 Newport 26 4000 2 91 91

11 RN Weeks 27 3700 2 93 93

12 Columbia 28 4350 1 111 111

NOTE: The number of hours associated with each dredge on the table found in Section 35 20 23.23, paragraph entitled "Dredging and Option Dredging Quantities", are estimated quantities.

d. The bidder must be capable of providing for assignment of the dredge and all attendant plant, complete and in full operating condition in all respects, as described in paragraph 1.5.e.

e. Delivery of the dredge and attendant plant and commencement of dredging shall be completed no earlier than 1 December 2021 and no later than 26 December 2021 in the Calcasieu River Bar Channel Dredging Region; and dredging shall commence in the Mississippi River and Southwest Pass Dredging Region no earlier than 1 February 2022 and no later than 28 February 2022. The Contractor shall commence and complete Item 0004 dredging hours in the Calcasieu River Bar Channel Dredging Region before moving to the Mississippi River and Southwest Pass Dredging Region if the same dredge is to be used in both dredging regions, or an additional plant can be added in order to meet this requirement if the same primary dredge is referenced on the bid in both dredging regions.

SECTION 00010 Page 7

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001

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, as listed in the table of Section 35 20 23.23, paragraph entitled "Dredge Plant". The dredge must perform at or above the listed production rate at least 85% of the time, as established by other contracts completed within three years prior to the bid opening date of this solicitation. Failure to establish an adequate capability 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 is not already obligated for the performance of other work that 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.

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.

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

Page

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001 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 3 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 35 01 50.73 Page

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001

SECTION TABLE OF CONTENTS

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

SECTION 35 01 50.73

SURVEYS

PART 1 GENERAL

1.1 SCOPE

1.2 MEASUREMENT AND PAYMENT

1.3 QUALITY CONTROL

1.4 PROFESSIONAL CERTIFICATION

PART 2 PRODUCTS

2.1 SURVEY EQUIPMENT

2.1.1 Survey Boat

2.1.2 Fathometer

2.1.2.1 Calibration

2.1.2.2 Low Frequency Signal Parameters

2.1.3Horizontal Positioning Equipment

PART 3 EXECUTION

3.1 SURVEYS

3.1.1 General

3.1.2 Pre-Dredging Survey (Calcasieu River Bar Channel Dredging Region)

3.1.3 After Dredging Cross-Sections

3.1.4 Acceptance Profiles

3.1.5 Survey Data

-- End of Section Table of Contents --

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001

SECTION 35 01 50.73

SURVEYS

PART 1 GENERAL

1.1 SCOPE

The work provided for herein consists of furnishing all plant, labor, equipment, and materials, and performing all operations necessary for surveying in the Calcasieu River Bar Channel Dredging Region as specified herein and as indicated on the contract plates. Unless otherwise specified, surveys and surveying shall be in accordance with EM 1110-2-1003, Engineering and Design, Hydrographic Surveying, latest edition.

1.2 MEASUREMENT AND PAYMENT

No separate measurement or payment will be made for surveys, survey equipment (survey boat, electronic positioning equipment, depth sensors, and appurtenant items), or quantity computations as specified herein.

Payment for work covered under this section shall be included in the contract unit price per hour for "Calcasieu River - Dredging" and " Calcasieu River - Option Dredging".

1.3 QUALITY CONTROL

The Contractor shall establish and maintain quality control for the work specified in this section to assure compliance with the contract requirements and maintain records of his quality control for all surveying including but not limited to the following:

a. Layouts and Surveys. Daily log of layout work and surveys consisting of type and location using the Government established baselines and gages as stated in the Contract Clause in Section 00700 - Contract Clauses, entitled "Layout of Work (FAR 52.236-17)".

b. Reporting. The original and two copies of these reports and tests as well as the records of corrective action taken, shall be furnished daily to the Government. The report shall include a record of times and dates surveys were run, the horizontal control stations used and their coordinates, the vertical control points used and their elevations, and weather conditions.

1.4 PROFESSIONAL CERTIFICATION

All surveys shall be performed in the presence of the Government Representative. All surveys shall be performed under the direction of and certified by a Professional Land Surveyor currently licensed by any state in the United States of America. In addition, the surveyor shall document at least three years of experience in hydrographic surveying of navigable channels.

PART 2 PRODUCTS

Although listed under PART 2 PRODUCTS, the equipment described herein remains the property of the Contractor at all times.

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001

2.1 SURVEY EQUIPMENT

The Contractor shall submit, to the Contracting Officer for review, a plan for the verification of surveying equipment described herein. The plan shall include types, certifications, calibration checks, etc., for the surveying equipment.

2.1.1 Survey Boat

a. The Contractor shall furnish survey vessel(s), diesel or gasoline powered, twin engine, not less than 40-ft. in length, and equipped with the following:

(1) Enclosed cabin;

(2) Space for six (6) passengers;

(3) Heating/air conditioning;

(4) Fully operated;

(5) U.S. Coast Guard certified;

(6) Navigation radar, as described in Section 35 20 23.23, paragraph entitled "Navigation Radar";

(7) Operable radio (same frequency as the dredge) for each dredge in operation;

(8) A surveying lead line as described in EM 1110-2-1003, Appendix B.

(9) Hydrographic Surveying System: Hydrographic surveying software (HYPACK or equivalent) and electronic horizontal positioning (Differentially corrected Global Positioning, DGPS), depth sounding and data acquisition instrumentation. The use of motion compensation (a heave/pitch/roll sensor) is optional; however, if it is not used, then the conduct of the survey will be restricted by roll/pitch/heave sea-state limits [>10 degrees (roll-pitch), >.5 ft. (heave)] as interpreted by the on-site Government Representative. Additionally, if the survey system utilizes motion compensation, then a side, bow or stern mounting of the fathometer transducer is acceptable; however, if motion compensation is not available, then the transducer must be hull mounted.

(10) The vessel(s) must, at minimum, have a fathometer bar check apparatus as described in EM 1110-2-1003, chapter 4-10.

The height of the fathometer transducer face while the vessel(s) is static (draft) and in motion (settlement, squat) must be determined as described in EM 1110-2-1003. A method must be established to determine and correct for any vessel draft changes during the surveying period [ex: hull draft makings abeam of the transducer(s)] (chapter 4-13).

"No Smoking" signs shall be posted and no smoking will be allowed when occupied by Government personnel.

b. Prior to surveying operations, a hydrographic system latency bias calibration test must be performed and the latency correctors must be applied (EM 1110-2-1003, chapter 4).

c. When the survey boat is not being used for surveying, it may be used for transporting Government personnel and for crew changes or other purposes, with the Inspector's approval. Transport of Government personnel shall take precedence during non-survey use. The survey boat shall be available 24 hours a day for surveying, transportation, etc, as directed by the Inspector. The minimum full-time crew for the survey boat during survey use shall be one operator for the day shift

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001 plus any survey personnel required to operate the survey equipment.

Smoking shall not be allowed inside the cabin and operator's space while occupied by Government personnel. NO SMOKING signs shall be posted. Hearing protection signs must be posted in the passenger quarters.

d. If the Contract clause entitled "Changes" (FAR 52.243-4) is invoked for the sea turtle and sturgeon trawling and relocation requirements the survey boat may be used to relocate the sea turtles.

2.1.2 Fathometer

All survey soundings shall be taken with a precision, high-resolution (0.1 ft.) fathometer. The acoustic ping rate shall be, at minimum, 10 soundings per second. To limit signal attenuation in areas of unconsolidated bottom sediments, the acoustic frequency utilized shall be within the range of 24-28 kHz and Low Frequency Low Pulse Width shall be in accordance with the Manufacturers recommended settings for unconsolidated bottom sediments in shallow water depths (i.e., 0 to 150 feet). If a dual frequency fathometer is utilized, the low frequency shall be within the 24-28 kHz range. At minimum, the equipment shall be capable of recording depths of water ranging from 3-feet under the transducer face(s) to a maximum of 50-feet.

At this maximum depth, the sounding accuracy must be 0.5-foot (28 kHz transducer) and 0.1-foot (200 kHz transducer). Acoustic returns shall be recorded on thermal chart paper by a fixed, high-resolution printing element (no stylus). The paper chart scaling shall be in English units, with chart division annotations at the 0, 10, 20, 30, 40, and 50-foot chart levels. The instrument shall, at minimum, be capable of adjusting transmit power receiver sensitivity and time-varied gain settings and of inputting the correct speed-of-sound, vessel draft and tide values. Additionally, the fathometer shall automatically print these control parameter settings on the chart paper at start-up and when any control setting is changed.

During the surveying of run lines, the fathometer shall be capable of annotating periodic event marks on the paper chart as directed by other surveying system components (positioning, controlling software) and be capable of transmitting each event sounding back to these system components for horizontal position tagging and data storage. A digital fathometer may be used instead of paper charts as directed by the Contracting Officer's Representative, but the Contractor must still be capable of producing paper charts unless otherwise directed by the Contracting Officer's Representative. Additionally, the surveyor shall print the control parameter settings on the chart paper at start of all surveys and when any control settings are changed and before and after all bar checks. Prior to the contractor taking Pre-Dredging surveys, control parameter settings shall be turned into the Government Inspector for review to insure the settings meet the surveying parameters.

2.1.2.1 Calibration

Hydrographic fathometer calibrations shall be performed at the survey site by methods described in EM 1110-2-1003, chapters 4-10 (a through m) and at a frequency listed in table 4-6 for navigation and dredging support surveys with soft bottom materials. The acoustic traces of the bar or ball check calibrations shall be captured on the fathometer paper chart (at the 10, 20, 30 and 40 ft. depths or as directed by the Government Representative) along with a notation indicating the site location (i.e. station, lat/lon, x,y), the date and time. Additionally, if a velocity meter probe is utilized, the average speed-of-sound reading for the entire water column and the location, date and time of the probe sounding must also be noted on

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001 the fathometer paper chart. A digital fathometer may be used instead of paper charts as directed by the Contracting Officer's Representative, but the Contractor must still be capable of producing paper charts unless otherwise directed by the Contracting Officer's Representative. All calibration and soundings shall be made in the presence and to the satisfaction of the Government Representative at the job site.

2.1.2.2 Low Frequency Signal Parameters

The Low Frequency Pulse Width range of cycles (ie. 1 to 10) used shall not produce signal lengths less than 35 microseconds or greater than 125 microseconds.

For example, using an Odom MKIII 24 kHz transducer with a LF Pulse Width Setting of 2, will result in a 83.3 microsecond long signal.

2 cycles (i.e. LF Pulse Width Setting = 2) / 24,000 Hz = 83.3 microseconds

2.1.3 Horizontal Positioning Equipment

The hydrographic surveying vessel(s) must utilize Differential Global Positioning System (DGPS) instrumentation for determining horizontal positioning during surveying operations. This DGPS instrumentation must have a positioning accuracy of 1-3 meters 2DRMS. Commercial DGPS Subscription Services or the U.S. Coast Guard DGPS Radiobeacon Navigation Service may be used for real-time pseudo-range (differential) corrections.

If the USCG system is to be utilized, then the English Turn beacon site shall be the source for differential corrections. The GPS antenna on the survey vessel(s) must be physically positioned directly above the fathometer transducer or the hydrographic surveying software suite must be capable of aligning the horizontal and vertical sensors.

PART 3 EXECUTION

3.1 SURVEYS

Surveys will include but will not be limited to the following surveys.

3.1.1 General

Surveys for all fixed stations shall be performed in accordance with EM 1110-2-1003, "Hydrographic Surveying, Class 1 Surveys". The Contractor shall collect and furnish to the Contracting Officer's Representative survey data in both high and low frequency. Survey data provided herein is presented in NAD 83 format. The Contractor shall be able to use this data to lay out the work and subsequently provide completed work as specified herein to the Government. Prior to initiating positioning surveys using electronic survey equipment, a calibration test of the electronic measuring device shall be performed according to the manufacturer's instructions in the presence of the Contracting Officer's Representative. Calibration checks shall be run at the beginning and completion of each day's survey or portion thereof. Results shall be furnished daily to the Contracting Officer's Representative. All electronic surveys shall be tied to a fixed station. The station may be a Government-furnished point or a temporary point established by the Contractor and approved by the Contracting Officer's Representative. Should the electronic measuring device fail to indicate the known distance within the factory-defined error range for the device, the device shall not be used for determining survey positions.

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001

3.1.2 Pre-Dredging Survey (Calcasieu River Bar Channel Dredging Region)

a. No later than 5 days prior to the dredge commencing work, the Contractor shall submit to the Contracting Officer the following surveys. The Government reserves the right to direct additional surveys be taken at no additional cost to the Government.

(1) A hydrographic survey of the channel between C/L stations 0+00 and 400+00. The survey shall include channel cross-sections taken every 1000 feet, as well as at all utility crossings, P.C.'s, P.T.'s, P.I.'s, and P.O.T.'s. A chart layout of the cross-sections shall be prepared and approved by the Contracting Officer. This graphical chart must represent a scaled plan view of the survey area with the recorded 5 ft. interval depth soundings (0.1 ft. resolution) plotted at their x,y positions.

(2) A hydrographic survey showing the safe dumping depth of the dredge and the proposed location (station) of the landward most dump site. The dumpsite location shall be indicated on a hydrographic survey plot of the disposal area. The hydrographic survey shall include a cross-section of the disposal area at the proposed station of the landward most dumpsite and 2 cross-sections landward and gulfward of that station. The cross-sections shall be taken at 1000-foot intervals as well as a centerline (C/L) profile at 500-foot intervals. For instance, if the landward most dump site is proposed at station 250+00, disposal area cross-sections shown on the hydrographic survey plot shall include stations 230+00, 240+00, 250+00, 260+00, and 270+00. The purpose of this survey is to gather information necessary for issuing the first dredging assignment.

b. The Contractor shall layout its work from Government established baselines (centerline of the channel), bench marks (established gages) and channel markers indicated on the plates and shall be responsible for all measurements in connection with the layout.

c. Should the Contractor be given other dredging assignments in the Secondary Dredging Regions listed in Section 35 20 23.23, paragraph entitled "Secondary Dredging Regions", details of the survey requirements for the respective regions will be given to the Contractor by the Contracting Officer's Representative prior to the start of work.

3.1.3 After Dredging Cross-Sections

a. After dredging cross-sections of the channel shall be taken at approximately 500-foot intervals along the channel, as well as at all utility crossings, P.C.'s, P.T.'s, P.I.'s, and P.O.T.'s. Depth soundings shall be made with the hydrographic surveying system (as described in paragraph entitled "Survey Equipment") and the recorded sounding density shall be one sounding for every 5 ft. along the cross-section runlines (normal to the centerline). The recorded depths shall be to a resolution of 0.1 ft. The sensitivity/gain control setting that is selected for the survey area bottom material-type must also be used for the bar check calibrations and must not be adjusted during hydrographic surveying (EM 1110-2-1003, chapter 4-6). In areas of consolidated bottom material, the digitized and recorded depth soundings shall indicate the true channel bottom. However, in survey areas containing unconsolidated bottom materials, acoustic measurements

Mississippi River Southwest Pass Hopper Contract 1-2021 OM21001 must be augmented with leadline measurements. These leadline measurements must be notated on the fathometer paper chart and taken at a minimum of 5,000 foot intervals; on the channel centerline and both edges of cut, or as determined by the Government representative on the jobsite. The procedures for surveying in unconsolidated bottom material areas are outlined and described in EM 1110-2-1003, Appendix P and more specifically in P-10. The real-time fathometer paper charting of the surveying runs, to include calibration and leadline events and all survey notations, shall be furnished to the Government. Electronic or digital fathometer read-outs will not be acceptable. Stored hydrographic data (x,y,z) shall also be furnished to the Government in a structured ASCII format on compact disk (CD) media.

b. The actual location of each sounding taken on each before dredging cross-section range shall be provided. This information shall be in the form of printout tabulation giving the actual distance of the soundings from the baseline (on an azimuth normal to the centerline of the cut). Soundings shall be to the nearest 0.1-foot referred to the water surface. This information shall also be plotted on a printout sheet, horizontal vertical scale, along with a section showing the required dredging dimensions. The time and date taken shall be shown and the gage reading applicable to the survey shall be shown. The applicable gage shall be read to the nearest 0.1-foot prior to and after each day's survey. More frequent readings may be required when directed by the Government Representative.

3.1.4 Acceptance Profiles

Upon completion of dredging in a designated reach, waterway profiles shall be taken over the same dredging reach.