W912P823B0062 Amend 0001.pdf

W912P823B0062

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 West Shore Lake Pontchartrain, LA, Hurricane and Storm Damage Risk Reduction Project, WSLP 105, Perrilloux Drainage Structure, and Levee, St. John the Baptist Parish, LA has been amended to:

a)Provide amended specifications.

b)Provide answ ers to prior questions.

c)AII questions are due NL T 11 :00am CST on Thursday, August 24, 2023

1. CONTRACT ID CODE PAGE OF PAGES

1 14

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

16C. DATE SIGNED

BY 21-Aug-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 W912P823B0062

X 9B. DATED (SEE ITEM 11)

01-Aug-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 is extended, X is not extended.

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

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

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

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

12. ACCOUNTING AND APPROPRIATION DATA (If required)

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

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

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

CONTRACT ORDER NO. IN ITEM 10A.

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

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

D. OTHER (Specify type of modification and authority)

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

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

10A. MOD. OF CONTRACT/ORDER NO.

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

6. ISSUED BY

3. EFFECTIVE DATE

21-Aug-2023

CODE

CONTRACTING DIV-PROJ EAST BR

CORPS OF ENGINEERS 7400 LEAKE AVENUE

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:

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

AMENDMENT 0001

Responses to Questions:

1) Question: Specification section 31 24 00.00 12, paragraph 2.1 requires embankment material to have an organic content of 9 percent or below. The plans and all other WSLP project specifications require embankment material to have an organic content of 12 percent or below.

Please revise this specification to the 12 percent or below requirement.

Response: The 12 percent limit is correct. The specifications will be amended.

2) Question: Please provide the Government’s estimated quantities for “Job” items.

Response: See attached job item quantities.

3) Question: Is public water supply available for contractor tapping and purchase from the weight station staging area?

Response: Bidders should contact the appropriate state agency regarding availability of utilities at the weigh station.

4) Question: Specification section 01100, paragraph 27 (c) requires cross section of the levee embankment adjacent to the geotechnical instrumentation twice a week during levee construction and once a month during the levee hold periods.

Are these surveys required to be stamped by an independent PLS registered in the state each time?

Response: Yes.

5) Question: Specification section 01100, paragraph 31 states the foundation piling cannot be ordered until PDA pile test and static load tests being performed by others have been completed.

When will the static load test being performed by others be completed?

Response: No PDA pile tests or static load tests are being performed for this site. Paragraph 31 will be revised to remove mention of PDA pile tests and static load tests. Please note, as stated under “Work Restrictions”, foundation H-piles for the floodwalls and drainage structures shall not be driven until after the Stage 1 and Stage 2 soil pre-load periods are complete.

6) Question: Is the separator geotextile required under the riprap and within the culvert bedding details measured and paid under the Separator Geotextile item?

Response: Yes.

7) Question: Is the reinforcement geotextile within the preloads measured and paid under the

Reinforcement Geotextile Reach 105-3 item?

Response: Yes.

8) Question: Is the uncompacted embankment and compacted fill embankment required to backfill the Perrilloux and Ridgefield canals measured and paid under the Embankment, Compacted Fill Item?

If so, is the contractor responsible for taking the cross sections?

Response: Yes to both.

9) Question: Note 3 on drawing C-404 states that the contractor shall remove the muck material from the existing canals prior to placing compacted fill.

How is the removal of the muck material measured and paid?

Response: It is included in the canal excavation bid item.

10) Question: Drawing C-111 details a “Temporary Bypass Canal and Crossing”.

Will the contractor be required to remove and backfill these temporary features?

If so, how would this work be measured and paid?

Will a permanent closure be part of this contract?

Response: The contractor will not be required to remove and backfill these temporary features.

11) Question: Are levee ramps measured and paid under the Embankment, Compacted Fill Item?

12) Question: Please provide the anticipated amount of settlement along the reach 105-1 levee for stage 1, stage 2, and stage 3.

Response: Stage 1 ~ 3’, stage 2 ~ 2’, stage 3 ~ 1.5’.

13) Question: Please provide the anticipated amount of settlement along the reach 105-3 levee for stage 1 and stage 2.

Response: Stage 1 ~ 1.75’, stage 2 ~ 1’.

14) Question: Please provide the anticipated amount of settlement at the preloads for stage 1 and stage 2.

Response: Stage 1 ~ 1.5’, stage 2 ~ 2’.

15) Question: Please confirm that settlement gages will be used to measure settlement during the reach 105-1 levee Stage 1 construction, 30 week Stage 1 hold period, Stage 2 construction, 25 week Stage 2 hold period, and Stage 3 construction.

Response: Yes, provided the contractor installs the settlement gages in accordance with the plans and specifications.

16) Question: Please confirm that settlement gages will be used to measure settlement during the reach 105-3 levee Stage 1 construction, 35 week Stage 1 hold period, and Stage 2 construction.

Response: Yes, provided the contractor installs the settlement gages in accordance with the plans and specifications.

17) Question: Please provide the locations of the required PDA piles on the drawings.

Response: PDA pile tests will not be performed. The specifications will be revised accordingly.

18) Question: Specification section 31 62 16.16 paragraph 1.4.5 states that payment for pile driving analyzer testing will be made at the contract job price for “Pile Driving Analyzer Testing”.

There is no Pile Driving Analyzer Testing bid item. Please clarify.

Response: PDA pile tests will not be performed. The specifications will be revised accordingly.

19) Question: Are PDA piles required to be removed or can they be abandoned in place?

Response: PDA pile tests will not be performed. The specifications will be revised accordingly.

20) Question: Is culvert backfill measured and paid under the Sand Fill item?

21) Question: Is culvert bedding measured and paid under the Surfacing item?

Response: No.

22) Question: Specification section 01 53 00.02 12, paragraph 1.5.2 states that TRS sheet pile tip elevations shall be a minimum of 10 feet below the base of the excavation. Drawing C-221 shows the tip of the TRS sheet pile at EL. -41.

Are the TRS sheet pile required to be tipped at EL. -41 as shown?

Response: The TRS shown on drawing C-221 is conceptual only. It is the contractor’s responsibility to design the TRS in accordance with the requirements of the plans and specifications.

23) Question: Note 7 on drawings C-301 and C-302 requires uncompacted fill to be placed 1’ above the existing water level.

What is the existing water level?

How is the furnishing and installation of uncompacted fill measured and paid?

What are the limits of the uncompacted fill placement?

Response: Water surface elevations vary. See stage hydrograph on Sheet X-001. The furnishing and installation of uncompacted fill is measured and paid in the compacted fill bid item. The limits of the uncompacted fill placement are throughout any placement of fill in standing water.

24) Question: Is the additional embankment shown on drawing C-409 on the 12’ wide levee access road detail included in the measurement and payment for Embankment, Compacted Fill?

25) Question: Are the vertical and horizontal strip drains within the foot print of the preloads measured and paid under the Vertical Wick Drain and Horizontal Strip Drain Items?

26) Question: Note 6 on drawing C-414 mentions settlement plate installation at the preloads.

Embankment material at the preloads is not measured for payment per specification section 31 24 00.00 12.

Will settlement at the preloads be measured for payment for the settlement that occurs during stage 1 construction, during the stage 1 hold, and during stage 2 construction?

If so, would this additional settlement be included in the Embankment, Compacted Fill item?

Response: Yes to both.

27) Question: Cross sections shown on drawings C-602 thru C-609 depict the multiple stages of levee construction. Will the reconstruction of the entire previous stage template be required prior to beginning the subsequent stage construction?

If so, is this additional material measured by the settlement plates and paid for under the Embankment, Compacted Fill item?

Response: Yes, the reconstruction of the entire previous stage template will be required prior to beginning the subsequent stage construction. Yes, this additional material is measured by the settlement plates and paid for under the Embankment, Compacted Fill item.

28) Question: Is turf establishment required between the multiple stages of levee construction?

Response: No.

SECTION 01100

1. Page 25, paragraph 27. Add the following new subparagraph to the end of this paragraph as:

“(f) The Contractor shall install the interior drainage canal crossing shown on drawing SHEET ID No. C-405 as a first order of work.”

2. Page 28, paragraph 31. Delete this paragraph in its entirety and substitute the following therefore:

“31. WORK RESTRICTIONS

The rate of fill for the compacted levee and pre-load areas shall not exceed 2-feet in elevation in a 7-day period. Foundation H-piles for the floodwalls and drainage structure shall not be driven until after the Stage 1 and Stage 2 soil pre-load periods are complete. Vibratory hammers are not allowed to drive the steel H-piles, both foundation and test piles, and concrete piles.

3. Add the following new paragraph to the end of this section, as:

“34. PAYMENT FOR MATERIALS STORED OFFSITE

Pursuant to the FAR clause 52.232-5, PAYMENTS UNDER FIXED PRICED CONSTRUCTION CONTRACTS, materials delivered to the Contractor at locations other than the site of the work may be taken into consideration in making progress payments if included in invoices for payment estimates and if all the conditions of the Contract Clauses are fulfilled. Payment for items delivered to locations other than the work site shall be limited to materials that have been approved (if required by the Technical Specifications) and fabricated to the point where they are identifiable to an item of work required under this contract. Such payment shall be made only after receipt of paid or receipted invoices or invoices with canceled check showing title to the items by the prime contractor. These invoices must show the dollar value of the materials and labor incorporated into them. The delivery size shall be acceptable to the Government and the materials shall be available for inspection by the Government prior to any consideration for payment. Refer to FAR clauses 52.232-5 PAYMENTS UNDER FIXED-PRICE CONSTRUCTION CONTRACTS, and 52.236-7 PERMITS AND RESPONSIBILITIES regarding the Contractor’s retention of risk and liability for any loss or damage prior to incorporation of materials into the permanent work and acceptance. Payment for materials delivered offsite is limited to the following items:

H- piles and sheet piles.”

SECTION 31 24 00.00 12

Page 14, paragraph 2.1.1. Delete this paragraph in its entirety and substitute the following therefore:

“2.1.1 Embankment Material

The embankment shall be constructed of naturally occurring earth materials. Materials that are classified in accordance with ASTM D2487 as CL or CH with less than 35% naturally occurring sand content are suitable for use as embankment fill. Materials classified as ML are suitable if blended to produce a material that classifies as CH or CL according to ASTM D2487. Intentional blending of granular or organic soils will not be allowed. The Contractor shall notify the Contracting Officer whenever the In-Place Plasticity Index of the material is 15 or less. Materials placed in the section must be at or above the Plasticity Index of 10. Materials placed in the section shall be at or below an organic content of 12 percent by weight, as determined by ASTM D2974, Method C.

Materials placed in the section shall contain less than 35 percent sand content by weight, as determined by ASTM D1140.”

SECTION 31 26 00.00 12

Pages 5 and 6, paragraphs 2.1.1 and 2.1.2. Delete these paragraphs in their entirety and substitute the following therefore:

2.1.1 General

The PVD shall be of newly manufactured materials (list of proposed products) and consist of a polyethylene or polypropylene drainage core enclosed in or integrated with a geotextile jacket.

The geotextile jacket shall allow free passage of pore water to the core without loss of soil material or piping. The core shall provide continuous drainage channels. The PVD shall be band-shaped with an aspect ratio (width divided by thickness) not exceeding 40. Pipes shall not to be used in place of vertical wick drains and horizontal strip drains for drainage purposes.

VERTICAL WICK DRAINS

Drain

Tensile Strength 200 lbs ASTM D4632/D4632M Weight 0.4 oz/ft ASTM D3776/D3776M Width 3.8 inches Thickness 0.115 inches

Discharge Capacity

1.5 gpm/ft of width at gradient of 0.1 ft/ft and confining pressure of 10 psi

ASTM D4716/D4716M

Geotextile Jacket

Grab Tensile Strength

130 lbs ASTM D4632/D4632M

Elongation at break >60% ASTM D4632/D4632M Trapezoidal Tear 40 lbs ASTM D4533/D4533M Flow Rate 80 gpm/ft^2 ASTM D4491/D4491M Permeability 0.016 in/sec ASTM D4491/D4491M AOS 70 sieve ASTM D4751 Static (CBR) Puncture

250 lbs ASTM D6241

Integrated Geocomposites

Bond Strength (Ply Adhesion)

6 lb/in ASTM D7005

2.1.2 Horizontal Strip Drains

The strip drain shall be a prefabricated type made up of a polymeric drainage core wrapped in a filter made of non-woven fabric of continuous filaments of 100% polypropylene. The core shall be fabricated with suitable drainage channels. The drain shall have the following minimum properties:

HORIZONTAL STRIP DRAINS

Drain Width 6 inches Thickness 3/4 inch Compressive Strength

9000 lb/ft2 ASTM D1621

Fungus Resistance No growth ASTM G21 Discharge Capacity (In-plane flow)

20 gpm/ft of width ASTM D4716/D4716M

Geotextile Jacket

Grab Tensile Strength

100 lbs ASTM D4632/D4632M

Elongation at break >60% ASTM D4632/D4632M Trapezoidal Tear 50 lbs ASTM D4533/D4533M Flow Rate 140 gpm/ft^2 ASTM D4491/D4491M

00010-3 Ed 19-

Permeability 0.30 in/sec ASTM D4491/D4491M AOS 70 sieve ASTM D4751 Permittivity 1.6/sec ASTM D4491/D4491M UV Resistance, 500 Hr

70% retained ASTM D4355/D4355M

Static (CBR) Puncture

250 lbs ASTM D6241

Integrated Geocomposites

Bond Strength (Ply Adhesion)

6 lb/in ASTM D7005 “

SECTION 31 62 16.16

1. Delete this paragraph in its entirety and substitute the following therefore:

“1.1 DESCRIPTION

Design, furnish, install piles at the locations indicated on the drawings and specified herein. Reference Section 09 97 02.01 12 PAINTING: COAL TAR EPOXY SYSTEM for painting requirements for H-piles.”

2. Page 5, paragraph 1.45. Delete this paragraph in its entirety:

3. Page 9, paragraph 2.2. Delete this paragraph in its entirety and substitute the following therefore:

“2.2 PILE DRIVING EQUIPMENT

Select the proposed Pile Driving Equipment, including hammers and other required items, and submit complete descriptions of the proposed equipment in accordance with paragraph SUBMITTALS.

Changes in the selected pile driving equipment will not be allowed after the equipment has been approved except as directed. No additional contract time will be allowed for Contractor proposed changes in the equipment.”

4. Pages 15 thru 17, paragraph 3.3.1. Delete this paragraph and all its subparagraphs in their entirety and substitute the following therefore: “3.3.1 Reserved”.

00010-4 Ed 19-

Attachment 1: Job Item Quantities (For Reference)

Item DESCRIPTION Estimated Quantity

Unit Unit Price Estimated Amount

0001 Mobilization and Demobilization 1 JOB

0002 Temporary Retaining Structures 1 JOB

Piling, Steel Sheet, Type PZ-27 15,810 SF

Excavation 2,400 BCY

Sand Fill 3,600 TON

Steel Bracing, W30x191 Waler 200 LF

Steel Bracing, W27x164 Waler 140 LF

Steel Bracing, 18” Dia. Pipe 210 LF

Steel Bracing, 12” Dia. Pipe 115 LF

0003 Traffic Control and Coordination 1 JOB

0004 Silt Fence 700 LF

0005 Truck Wash-Down Racks 1 JOB

0006 Reinforced Concrete Floodwall 1 JOB

T-Wall Stabilization Slab 40 CY

T-Wall Base 400 CY

T-Wall Stem 380 CY

Water Stops 220 LF

0007 Reinforced Concrete Drainage Structures

1 JOB

Stabilization Slab 35 CY

Base 315 CY

Walls 595 CY

Wing Wall Stabilization Slab 9 CY

Wing Wall Base 76 CY

Wing Wall Stem 75 CY

00010-5 Ed 19-

Water Stops 120 LF

Concrete Barrier Railing 85 LF

0008 Miscellaneous Metals 1 JOB

Aluminum Handrail 235 LF

Steel Ladders 90 VLF

Steel Grating (1 ½” Thick) 331 SF

Steel Grating (3” Thick) 92 SF

Hatches 8 EA

Aluminum Stairs 1 EA

0009 Separator Geotextile 36,400 SY

0010 Reinforcement Geotextile (Reach 105-1)

84,000 SY

0011 Reinforcement Geotextile (Reach 105-3)

35,000 SY

0012 Clearing and Grubbing 1 JOB

Heavy Clearing and Grubbing 21 AC

Medium Clearing and Grubbing 71 AC

Light Clearing and Grubbing 68 AC

0013 Excavation, Drainage Canals 1 JOB

Interior Drainage Canals 193,200 BCY

Exterior Drainage Canals 1,000 BCY

Perrilloux Drainage Canal 7,800 BCY

Temporary Bypass Canal 6,200 BCY

0014 Construction Dewatering 1 JOB

0015 Embankment, Compacted Fill 547,000 CY

0016 Sand Fill

0016AA First 336,000 TONS 336,000 TON

0016AB All Over 336,000 TONS 84,000 TON

0017 Soil Pre-Loading 1 JOB

00010-6 Ed 19-

Embankment 18,140 ECY

Sand 1,500 TON

0018 Vertical Wick Drain Installation 5,936,324 LF

0019 Horizontal Strip Drain Installation 401,192 LF

0020 Grouted Riprap 850 CY

0021 Piling, Steel Sheet, Type PZ-22 19,775 SF

Furnish 14"x14" Precast Concrete Piling 816 LF

Drive 14"x14" Precast Concrete Piling

816 LF

0024 Furnish HP14x73 Steel Piles 22,560 LF

0025 Drive HP14x73 Steel Piles 22,560 LF

0026 Surfacing

0026AA First 11,200 TON 11,200 TON

0026AB All Over 11,200 TON 2,800 TON

0027 Chain Link Fences and Gates 1 JOB

Chain Link Fences 110 LF

Chain Link Gates 4 EA

Drainage Structure Access Bridge

1 JOB

14’-8” x 20’ (14” Thick) Precast Bridge Panels

594 SF

14’-8” x 15’ (14” Thick) Precast Bridge Panels

490 SF

Concrete Barrier Railing 140 LF

24” x 28” Concrete Pile Bent 11 CY

0029 Seeding and Mulching 60 AC

0030 Fertilizer

0030AA First 2,700 LBS 2,700 LBS

0030AB All Over 2,700 LBS 1,200 LBS

0031++ Lime Soil Amendment 60 TON

0032++ Sulfur Soil Amendment 30 TON

60-Inch CMP Culvert Installation

60-Inch CMP Culvert 665 LF

60-Inch CMP Culvert Bedding

405 TON

72-Inch CMP Culvert Installation

72-Inch CMP Culvert 525 LF

72-Inch CMP Culvert Bedding

405 TON

0035 Stoplogs 1 JOB

1’ Wide x 11’ Long x 3’ Tall 12 EA

0036 Slide Gates and Hoists 1 JOB

10’x10’ Slide Gates and Hoists 4 EA

0037 Riprap 340 TON

0038 R-90 Riprap 420 TON

0039 Riprap Bedding 90 TON

TOTAL: $

(End of Summary of Changes)