Amendment 0002 W912P824B0026.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 West Shore Lake Pontchartrain, Louisiana Hurricane and Storm Damage Risk Reduction Project WSLP-109 Levee and Floodw all, St. John the Baptist Parish, Louisiana is hereby amended as follow s:

a) Bid opening on date 12 September 2024 at 11:00 AM CST remain changed.

b) Provided Answers to contractor questions.

c) Provide updated specifications and drawings.

d) Provide updated Bid schedule.

e) Virtual Bid Opening Instructions.

1. CONTRACT ID CODE PAGE OF PAGES

1 38

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

16C. DATE SIGNED

BY

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 W912P824B0026

X 9B. DATED (SEE ITEM 11)

13-Aug-2024

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

06-Sep-2024

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:

CONTINUATION PAGE

The following items are applicable to this modification:

QUESTIONS AND ANSWERS

Question Answers

Can you please confirm the PLA requirement for this project

PLA will not be required

Is a PLA requirement based on the government estimate or the contractor's bid to the government?

PLA is based on the Government Estimate

If the requirement is based on the government estimate, can the government provide the precise government estimate prior to the bid date so that contractors can better prepare bids with the anticipation of a required PLA?

An order of magnitude was provided. No, the government estimate is not releasable.

If the government is unwilling to provide a precise government estimate, can the government please revise the magnitude range posted for the solicitation to a range either above or below $35 million?

No, the order of magnitude is prescribed in FAR PART 36.204 Disclosure of the magnitude of construction projects.

Is a requirement for a PLA subject to the base bid only, or the base bid and all option work?

Please see U.S. Department of Labor (DOL), Project Labor Agreement (PLA) Resource Guide:

https://www.dol.gov/general/good-jobs/project-labor-agreement-resource-guide

Please provide bidders with estimated quantities on items of work for which bids are being solicited on a job basis.

JOB quantities are forthcoming in an amendment

In Section 00010 - Bidding Schedule, CLIN 0029, is this item for Uncompacted Fill?

No.

Section 01100, Paragraph 19 (c) states that “No work will be permitted in the Optional Work Areas except for construction of a temporary access across the pipeline corridor”. On Drawing G-009, Note 5 states that “Equipment at the ground surface shall travel on a sand and crushed stone base roadway with double geogrid reinforcement similar to the maintenance roadway shown on C-413”. These statements imply that the contractor will be allowed to construct a temporary access across the pipeline corridor following the design shown on C-413. Will contractor receive payment for the sand, limestone and geogrid placed during?

construction of the temporary access?

See spec section 31 05 21, paragraph 1.2.2 for geogrid payment. SEE SPEC SECTION 31 24 00.00

12 PARAGRAPH 3.5.1.2, "TEMPORARY ROADS".

Section 31 24 00.00 12, Paragraph 2.1.2 implies that the sand fill shall be furnished by the Government.

Please correct.

Amendment 0001 provided a government furnished sand stockpile location.

Section 31 24 00.00 12, Paragraph 3.2.1 states that “Compacted fill shall not be placed in water”. It goes on to state “Where applicable, the area in which new embankment is to be placed shall be thoroughly drained either by diking or ditching means to remove all standing water”. If the natural ground which embankment material is being placed is under water or is highly saturated, can a 1-foot bridge lift be placed prior to commencing with compaction methods?

An Amendment is forthcoming to clarify this issue

Based on engineering analysis performed for this project, what is the anticipated depth of settlement that will occur during construction of the levee embankment?

Anticipated settlement could be up to 10" during construction.

With the release of Amendment 0001 and the replacement of the original drawing set with

W912P824B0026++WSLP-109+-+Plans, please confirm if there will be an extension to the RFI submission deadline and the bid opening date to allow for review and any additional questions that may be required.

Please provide government take off quantities for lump sum items.

JOB quantities are forthcoming in an amendment

Reference utility penetration for groups of small utilities on sheet s-505a. This shows a utiltiy conduit, a void to be filled with casing filler, a utiltiy pipe casing, ½” neoprene, and inner pipe sleeve (3/8” min.). Are we correct in assuming that besides the utiltiy conduit, that the utility pipe casing and casing filler between the utiltiy pipe casing and the utlity conduit is all existing, and the scope of supply for the contractor is the inner pipe sleeve (3/8” min.) And the 1/2:” neoprene? If so, what is the diameter of the inner pipe sleeve?

Contractor is responsible for everything except the owner installed casing.

Inner pipe sleeve should be 1/2" greater than the utility line

Will the contractor be allowed to use a vibratory hammer for the floodwall sheet piles and trs sheet piles?

Vibration limits for driving piles will be applicable to the sheet pile also.

Will the contractor be allowed to pull the TRS sheet piling? Yes, TRS sheeting may be pulled, up to any connection with the permanent sheet pile cutoff wall.

Will the contractor be allowed to pull the sheet pile jacking frame piles? Yes

OW2 has a bid item for 72” CMP culverts. It appears these culverts are already in place. Where do these culverts go?

The Option Work listed in CLINS 0059 through 0066 for OW2 will not be exercised by the Government and should not be bid, a forthcoming amendment will remove these CLINS from the bid sheet and specs.

Please define the station limits and width of the ACB mattresses. The takeoff quantity is much greater than the plan quantity. To be addressed by Amendment

Please confirm the accuracy of cross sections provided for levee and drainage canal. Cross sections will be revised to raise the land side canal invert to EL -5.0.

Note 4 on sheet c-406 states closed cell ACB mats, but the spec calls for 25% void which is the definition of open cell style mat. Please clarify.

C-406, Note 4: "Closed Cell ACB Mats Section 35 31 19.50, para 2.1 "Only solid concrete blocks shall be provided."

Section 35 31 19.50, Table 1 and note 'c' is left to apply to the void area between the blocks. (SHOULD

REDUCE THE SURFACE VOID AREA RATIO

from 25 - 40 percent to "less than 15 percent")

How often will ACBM anchors be required? All corners to be anchored. Maximum ACBM anchor spacing is 8 ft.

Is plan sheet C-306 included in this set of plans “for information only”, or is there and special requirements related to the G-080 pipeline which is outside the limits of this project?

For Information Only Will the ACBM cable matrix need to be single directional or bidirectional? Bi-directional

What is the estimated quantity of sand stockpile that is to be removed per amendment 1? The sand stockpile has sufficient quantity for the bid schedule quantities

How will this material be measured for payment?

By the ton using certified scales.

31 24 00.00 12, para 1.3.3

Will the contractor be required to install temporary scales at the governments stockpile location?

No What will the revised plan quantity of sand be for clin 0011? No change

Plan sheet S-505a, Note 2 – Will all of the outer sleeves be allowed to be changed to a box frame, no matter the size of the gas line pipe? It is the “L” type water stop which is too stiff to make those tight radius curves around the outer sleeve.

A box frame will be considered by submittal

Plan sheet s-505a in the table of pipeline sleeves item g-033 has a sub note stating that the owner to add casing prior to construction. Please clarify what all work this utility owner will be performing and what the contractor will have to perform for this item.

Utility owner will install a casing prior to construction.

Contractor to perform all work around the casing as if it were the pipeline.

Will the inside of the outer sleeves need to be coated with coal tar epoxy or just the outsides? Coating to be completed by the utility owner in the field.

Specification section 01100, paragraph 31 (b) states “the right-of-way access and rights for levee construction between B/L sta. 191+95 to sta.

192+90 shall be unavailable until after 15 December 2024 or as directed by the contracting officer.” Please confirm this date for access is still valid

Yes, still valid.

Specification section 13 50 00.00 12, paragraph 3.4

(a) states “settlement plates in the preload are soley for monitoring settlement of the preload area and not associated with measurement or payment for embankment.” How will the contractor be compensated for settlement of the preload area during preload construction?

There is no compensation for settlement of preload.

The contractor is not required to keep the preload at the completed required constructed elevation.

Will the contractor be allowed to work on the temporary work platform, outside of the preload limits, during preload construction and subsequent hold period?

The temporary work platform outside of the preload and instrumentation limits may be constructed during the preload HOLD PERIOD. (25' minimum offset from instrumentation and preload?)

Will the contractor be allowed to work on the temporary retaining structure, outside of the preload limits, during preload construction and subsequent hold period?

Temporary retaining structures outside of the preload and preload instrumentation limits, may be installed, following completion of the temporary work platform.

Will the contractor be allowed to install permanent steel sheet piling and permanent steel h-piling, outside of the preload limits, during preload construction and subsequent hold period? These work items shall be completed from the temporary work platform.

Will the contractor be allowed to work on the reinforced concrete flood wall, outside of the preload limits, during preload construction and subsequent hold period? These work items shall be completed from the temporary work platform.

Specification section 13 50 00.00 12, paragraph

3.10.1.4 states “the estimated hold time of the preload is 4 months from the time the preload embankment construction is complete.” Drawing c- 409, note 4 states that the minimum hold time is 6 months. Please clarify.

Hold time is 6 months. Specifications to be revised.

On Drawing G-008, Note 13 refers the Contractor to a “Temporary Road Section” on Drawing G- 009.

Be advised that a temporary road section is not shown on Drawing G-009. Note 13 is being addressed by Amendment

The land side canal shown on Drawings C-301 through C-304 is not drawn correctly as it appears to show the canal to a depth of -10.0’. All other drawings show the land side canal being constructed to a depth of -5.0’. Since this work is being performed on a “Job” basis, please correct these drawings so Contractors can accurately quantify the work required.

The land side canal bottom as called out on C-001 and C-001A is correct, EL -5.0. Land side canal invert to be adjusted to EL -5.0.

Question Answers

Can you please confirm the PLA requirement for this project

PLA will not be required

Is a PLA requirement based on the government estimate or the contractor's bid to the government?

PLA is based on the Government Estimate

If the requirement is based on the government estimate, can the government provide the precise government estimate prior to the bid date so that contractors can better prepare bids with the anticipation of a required PLA?

An order of magnitude was provided. No, the government estimate is not releasable.

If the government is unwilling to provide a precise government estimate, can the government please revise the magnitude range posted for the solicitation to a range either above or below $35 million?

No, the order of magnitude is prescribed in FAR PART 36.204 Disclosure of the magnitude of construction projects.

Is a requirement for a PLA subject to the base bid only, or the base bid and all option work?

Please see U.S. Department of Labor (DOL), Project Labor Agreement (PLA) Resource Guide:

https://www.dol.gov/general/good-jobs/project-labor-agreement-resource-guide

Please provide bidders with estimated quantities on items of work for which bids are being solicited on a job basis.

JOB quantities are forthcoming in an amendment

In Section 00010 - Bidding Schedule, CLIN 0029, is this item for Uncompacted Fill?

No.

Section 01100, Paragraph 19 (c) states that “No work will be permitted in the Optional Work Areas except for construction of a temporary access across the pipeline corridor”. On Drawing G-009, Note 5 states that “Equipment at the ground surface shall travel on a sand and crushed stone base roadway with double geogrid reinforcement similar to the maintenance roadway shown on C-413”. These statements imply that the contractor will be allowed to construct a temporary access across the pipeline corridor following the design shown on C-413. Will contractor receive payment for the sand, limestone and geogrid placed during?

construction of the temporary access?

See spec section 31 05 21, paragraph 1.2.2 for geogrid payment. SEE SPEC SECTION 31 24 00.00

12 PARAGRAPH 3.5.1.2, "TEMPORARY ROADS".

Section 31 24 00.00 12, Paragraph 2.1.2 implies that the sand fill shall be furnished by the Government.

Please correct.

Amendment 0001 provided a government furnished sand stockpile location.

Section 31 24 00.00 12, Paragraph 3.2.1 states that “Compacted fill shall not be placed in water”. It goes on to state “Where applicable, the area in which new embankment is to be placed shall be thoroughly drained either by diking or ditching means to remove all standing water”. If the natural ground which embankment material is being placed is under water or is highly saturated, can a 1-foot bridge lift be placed prior to commencing with compaction methods?

An Amendment is forthcoming to clarify this issue

Based on engineering analysis performed for this project, what is the anticipated depth of settlement that will occur during construction of the levee embankment?

Anticipated settlement could be up to 10" during construction.

With the release of Amendment 0001 and the replacement of the original drawing set with

W912P824B0026++WSLP-109+-+Plans, please confirm if there will be an extension to the RFI submission deadline and the bid opening date to allow for review and any additional questions that may be required.

Please provide government take off quantities for lump sum items.

JOB quantities are forthcoming in an amendment

Reference utility penetration for groups of small utilities on sheet s-505a. This shows a utiltiy conduit, a void to be filled with casing filler, a utiltiy pipe casing, ½” neoprene, and inner pipe sleeve (3/8” min.). Are we correct in assuming that besides the utiltiy conduit, that the utility pipe casing and casing filler between the utiltiy pipe casing and the utlity conduit is all existing, and the scope of supply for the contractor is the inner pipe sleeve (3/8” min.) And the 1/2:” neoprene? If so, what is the diameter of the inner pipe sleeve?

Contractor is responsible for everything except the owner installed casing.

Inner pipe sleeve should be 1/2" greater than the utility line

Will the contractor be allowed to use a vibratory hammer for the floodwall sheet piles and trs sheet piles?

Vibration limits for driving piles will be applicable to the sheet pile also.

Will the contractor be allowed to pull the TRS sheet piling? Yes, TRS sheeting may be pulled, up to any connection with the permanent sheet pile cutoff wall.

Will the contractor be allowed to pull the sheet pile jacking frame piles? Yes

OW2 has a bid item for 72” CMP culverts. It appears these culverts are already in place. Where do these culverts go?

The Option Work listed in CLINS 0059 through 0066 for OW2 will not be exercised by the Government and should not be bid, a forthcoming amendment will remove these CLINS from the bid sheet and specs.

Please define the station limits and width of the ACB mattresses. The takeoff quantity is much greater than the plan quantity. To be addressed by Amendment

Please confirm the accuracy of cross sections provided for levee and drainage canal. Cross sections will be revised to raise the land side canal invert to EL -5.0.

Note 4 on sheet c-406 states closed cell ACB mats, but the spec calls for 25% void which is the definition of open cell style mat. Please clarify.

C-406, Note 4: "Closed Cell ACB Mats Section 35 31 19.50, para 2.1 "Only solid concrete blocks shall be provided."

Section 35 31 19.50, Table 1 and note 'c' is left to apply to the void area between the blocks. (SHOULD

REDUCE THE SURFACE VOID AREA RATIO

from 25 - 40 percent to "less than 15 percent")

How often will ACBM anchors be required? All corners to be anchored. Maximum ACBM anchor spacing is 8 ft.

Is plan sheet C-306 included in this set of plans “for information only”, or is there and special requirements related to the G-080 pipeline which is outside the limits of this project?

For Information Only Will the ACBM cable matrix need to be single directional or bidirectional? Bi-directional

What is the estimated quantity of sand stockpile that is to be removed per amendment 1? The sand stockpile has sufficient quantity for the bid schedule quantities

How will this material be measured for payment?

By the ton using certified scales.

31 24 00.00 12, para 1.3.3

Will the contractor be required to install temporary scales at the governments stockpile location?

No What will the revised plan quantity of sand be for clin 0011? No change

Plan sheet S-505a, Note 2 – Will all of the outer sleeves be allowed to be changed to a box frame, no matter the size of the gas line pipe? It is the “L” type water stop which is too stiff to make those tight radius curves around the outer sleeve.

A box frame will be considered by submittal

Plan sheet s-505a in the table of pipeline sleeves item g-033 has a sub note stating that the owner to add casing prior to construction. Please clarify what all work this utility owner will be performing and what the contractor will have to perform for this item.

Utility owner will install a casing prior to construction.

Contractor to perform all work around the casing as if it were the pipeline.

Will the inside of the outer sleeves need to be coated with coal tar epoxy or just the outsides? Coating to be completed by the utility owner in the field.

Specification section 01100, paragraph 31 (b) states “the right-of-way access and rights for levee construction between B/L sta. 191+95 to sta.

192+90 shall be unavailable until after 15 December 2024 or as directed by the contracting officer.” Please confirm this date for access is still valid

Yes, still valid.

Specification section 13 50 00.00 12, paragraph 3.4

(a) states “settlement plates in the preload are soley for monitoring settlement of the preload area and not associated with measurement or payment for embankment.” How will the contractor be compensated for settlement of the preload area during preload construction?

There is no compensation for settlement of preload.

The contractor is not required to keep the preload at the completed required constructed elevation.

Will the contractor be allowed to work on the temporary work platform, outside of the preload limits, during preload construction and subsequent hold period?

The temporary work platform outside of the preload and instrumentation limits may be constructed during the preload HOLD PERIOD. (25' minimum offset from instrumentation and preload?)

Will the contractor be allowed to work on the temporary retaining structure, outside of the preload limits, during preload construction and subsequent hold period?

Temporary retaining structures outside of the preload and preload instrumentation limits, may be installed, following completion of the temporary work platform.

Will the contractor be allowed to install permanent steel sheet piling and permanent steel h-piling, outside of the preload limits, during preload construction and subsequent hold period? These work items shall be completed from the temporary work platform.

Will the contractor be allowed to work on the reinforced concrete flood wall, outside of the preload limits, during preload construction and subsequent hold period? These work items shall be completed from the temporary work platform.

Specification section 13 50 00.00 12, paragraph

3.10.1.4 states “the estimated hold time of the preload is 4 months from the time the preload embankment construction is complete.” Drawing c- 409, note 4 states that the minimum hold time is 6 months. Please clarify.

Hold time is 6 months. Specifications to be revised.

On Drawing G-008, Note 13 refers the Contractor to a “Temporary Road Section” on Drawing G- 009.

Be advised that a temporary road section is not shown on Drawing G-009. Note 13 is being addressed by Amendment

The land side canal shown on Drawings C-301 through C-304 is not drawn correctly as it appears to show the canal to a depth of -10.0’. All other drawings show the land side canal being constructed to a depth of -5.0’. Since this work is being performed on a “Job” basis, please correct these drawings so Contractors can accurately quantify the work required.

The land side canal bottom as called out on C-001 and C-001A is correct, EL -5.0. Land side canal invert to be adjusted to EL -5.0.

Virtual Bid Opening:

The Virtual Bid Opening is currently scheduled for Thursday, September 12, 2024, at 11:00 AM CST. The Contracting Officer and Contract Specialist will begin downloading bids at 10:00 AM CST, which is the bid submission receipt cutoff time. All bids received Thursday, September 12, 2024, after 10:00 AM CST, will be considered late.

Audio Teleconference Bid Opening Information:

Join from the meeting link https://usace1.webex.com/meet/jeffrey.j.waguespack Join by meeting number 1-844-800-2712 Attendee Code: 43382870

SECTION 00010

Pages 00010-3 thru 8. Delete these pages in their entirety and substitute the attached revised pages 00010-3 thru 7, therefore.

SECTION 13 50 00.00 12

1. Page 19, paragraph 3.10.1.1. Delete this paragraph in its entirety and substitute the following therefore:

"3 .10.1.1 Monitoring and Reporting of Data

The data shall be gathered by the Contractor's instrumentation personnel and the information and data shall be provided to the Contracting Officer Representative (Government's Geotechnical designers). The Contracting Officer Representative will make the necessary decisions and adjustments. Decisions and adjustments may include but are not limited to: longer hold times on preloading (greater than 6 months), slower placement of preload embankment (staging), and/or mitigation of abnormalities that may occur. Adjustments may increase or decrease the length of time that the preload must be in place. The Contracting Officer Representative will be the sole judge of whether adjustments are required."

2. Page 19, paragraph 3.10.1.4. Delete this paragraph in its entirety and substitute the following therefore:

"3 .10.1.4 Periodic Monitoring Reports

The Contractor's instrumentation personnel shall provide Periodic Monitoring Reports every 2 days throughout the preload period that include, at a minimum, instrument data, actual consolidation based on field measurement, and any warning of unforeseen conditions that may require remedial or precautionary measures. The periodic reports shall be submitted to the Contracting Officer Representative within 1 day of receiving the instrumentation data needed to complete each periodic report. The estimated hold time of the preload is 6 months from the time the preload embankment construction is complete. For estimating purposes, the expected settlements range from 5.2 feet at the highest preload sections to 2.2 feet at the lowest preload section."

SECTION 310519.04 12

Page 2, paragraph 1.3.1. Delete this paragraph in its entirety and substitute the following therefore:

"1.3.1 Separator Geotextile, General

Separator geotextile will be measured in place to the nearest square yard as delineated on the drawings. Overlaps will be measured as a single layer. Payment for the separator geotextile will be made at the applicable contract unit price per square yard for "Separator Geotextile" or "Separator Geotextile - OWl ", if Optional Work 1 is exercised. Price and payment shall constitute full compensation for providing all plant, equipment, labor and materials, for placement of the separator geotextile; including separator geotextile placed under the riprap, cutting, sewing, testing, taking corrective measures to fix deficiencies, and incidentals work as shown on the drawings and as specified herein. No payment shall be made for geotextile that is rejected or damaged due to Contractor fault or negligence."

SECTION 31 1100.0012

Page 2, paragraph 1.2. Delete this paragraph in its entirety and substitute the following therefore:

"1.2 MEASUREMENT AND PAYMENT

No measurement will be made for clearing and grubbing. Payment will be made at the applicable contract job price for "Clearing and Grubbing" or "Clearing and Grubbing - OW l ", if Optional Work 1 is exercised. Price and payment shall constitute full compensation for furnishing all plant, labor, material and equipment and performing all operations necessary for clearing and grubbing; including removing and disposing of all cleared and grubbed materials, and for filling holes resulting from grubbing operations, existing stump removal; as specified herein or indicated on the drawings."

SECTION 31 23 00.00 12

Page 4, paragraph 1.4.2. Delete this paragraph in its entirety and substitute the following therefore:

"1.4.2 Interior and Exterior Drainage Canals

Payment for interior and exterior drainage canal excavation will be made at the contract job price for "Drainage Excavation". Price and payment shall constitute full compensation for furnishing all plant, labor, materials and equipment for excavation of the interior and exterior drainage canals; including spread on site, resurvey the canals prior to final inspection; and for regrading all areas not meeting prescribed lines and grades; and other work incidental thereto;

as specified herein and as shown on the drawings. Payment up to 80% of the job price will be made for the initial canal excavation. The remaining 20% of the payment will be made upon final surveying and any regrading of the drainage canals."

SECTION 312400.00 12

1. Page 3, paragraph 1.1. Delete this paragraph in its entirety and substitute the following therefore:

"1.1 SCOPE

The work covered by this section consists of furnishing all plant, labor, equipment, and materials, except as otherwise specified in Section 31 23 00.00 12 EXCAVATION, and performing all operations in connection with foundation preparation and construction of sand fill base and embankment compacted fill, preload embankment, preload granular fill, access ramps, permanent access roads, drainage canal spoil; and other incidental earthwork as may be necessary to complete the embankments as shown on the drawings, and as hereinafter specified. Fill and backfill for structures are covered in Section 31 23 16.16, STRUCTURAL

EXCAVATION AND BACKFILL."

2. Page 6, paragraph 1.4.2. Delete this paragraph in its entirety and substitute the following therefore:

"1.4.2 Sand Fill Base and Granular Fill for Preload

Payment for the sand material placed as required in the sand fill base or granular fill for preload will be made at the applicable contract unit price per ton for "Sand Fill Base" or "Sand Fill Base - OWi ", if Optional Work 1 is exercised. Price and payment shall constitute full compensation for furnishing all plant, labor, materials and equipment for constructing the sand fill base and preload; including handling, hauling from the Government furnished sand stockpile, delivering, placement, maintenance; constructing and maintaining access roads and ramps, foundation preparation; testing, stockpiling of sand fill/granular material; all as specified herein and as shown on the drawings."

3. Page 8, subparagraph 1.5.1 (11). Immediately following this subparagraph add the following new subparagraph as:

(12) Control Testing. The Contractor shall perform all control testing such as soil classification, moisture content, control compaction curves, organic content, sand content and in-place density. The results of all tests shall be reported to the Contracting Officer's representative within 24 hours of sampling, except for the organic test results, which shall be reported within 48 hours of sampling. To ensure contract compliance, the Contractor shall upload into RMS the results of the control compaction curves, in-place density tests, moisture content tests, one-point compaction tests, sand content tests, and organic content tests to the Contracting Officer's Representative. The Contractor's QC test results of in-place compaction, soil classification, moisture content, sand content, organic content, and compaction curves shall be provided to Engineering Division, Geotechnical Branch, on a regular basis throughout the contract, but no later than 5 days of receiving results.

Testing shall be performed by a Government approved testing agency, or organization including on-site testing labs operated by QC personnel. Criteria used for obtaining Government approval shall be in accordance with ASTM E 329. No additional payment will be made for control testing required in this paragraph. No additional payment will be made for control testing required in this paragraph. All costs in connection therewith shall be included in the applicable contract unit price for which the control testing is incidental thereto. Documentation of sampling locations for the following tests shall be clearly defined by levee station and offset and also by lift number or elevation. As a minimum, the following tests are required:

1. Soil Classification Tests. Determination of soil classification shall be in accordance with ASTM D 2487. Atterberg Limits Test required for soil classification shall be performed in accordance withASTM D 4318. One Atterberg test shall be obtained from the sample material used for each control compaction curve and one shall be obtained from the sample material used for each in-place density test. If the Nuclear Method is used, the material to be tested shall come from within a radius of 12 inches of the center of the in-place density test site. The soil classification obtained from in-place density tests will serve as the basis for determining the applicable control compaction curves.

2. Control Compaction Curves - Compacted Fills. Control compaction curves shall be established in accordance with ASTM D 698 (Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort). Two control compaction curves will be required for each type of material from each source or a minimum of one compaction control curve every 25,000 cubic yards of compacted fill placed. Where construction operations result in blending of several types of material prior to or during fill placement within the embankment design sections, two control compaction curves will be required for each resulting blend of material and will be utilized in lieu of those required for the "unblended materials." The average of the two tests shall be the controlling optimum moisture content and maximum dry density. The samples collected for the blend of material shall be collected from separate locations. If the source of fill material changes, new compaction control curves shall be created. The average of the two tests shall be the controlling optimum moisture content and maximum dry density. Material test samples for the compaction control curves shall be prepared by air drying, rewetting, and curing.

3. In-Place Density Tests. In-place density tests for compacted fill material shall be made in accordance withASTM D 6938 (Nuclear Method) or ASTM D 1556 and shall be made at a minimum frequency of one density test per lift per 1500 cubic yards of compacted fill placed in the levee per lift, but not less than one density test per 500 feet per lift. At least one test shall be performed in any shift that compacted fill is placed. A lift on any one side of the existing embankment will be considered one lift. The location of the test shall be representative of the area being tested or as directed by the Contracting Officer. For each in-place density test, the Contractor shall determine the percentage of ASTM D 698 maximum dry density and the deviation from optimum water content in percentage points (plus or minus), using the control compaction curves for the same type of material. The appropriate control compaction curve shall be selected by using the one-point compaction test when available or visual soil classification and soil classification test.

If the Nuclear Method is selected for field density testing, the dry density shall be determined by using the value of wet density reported by the nuclear density equipment and the value of moisture content obtained from ASTM D 2216 or ASTM D 4643. The Contractor shall not use the value of dry density reported by the nuclear density equipment.

The Sand-Cone Method shall be used to confirm the accuracy of the Nuclear Method. This can be accomplished by performing an initial comparison test of the two methods at the start of construction. If the Nuclear Method wet density is within 3 percent of the Sand Cone Method, no correction of the Nuclear Method wet density will be required, and the testing may continue with the Nuclear Method. The Nuclear Method wet density shall be verified throughout the project at a rate of one Sand-Cone test for every ten nuclear tests thereafter. If the variance at any time exceeds 3 percent, a correction factor will be required to be determined prior to any further testing. For comparison purposes, the nuclear and sand-cone wet densities should represent the same layer thickness within the testing area selected. When a nuclear density result is in doubt, the sand-cone density test shall be used for acceptance.

The correction factor shall be determined by conducting ten comparison tests (five ASTM D 6938 and five ASTM D 1556) and calculating the average difference (correction) for each soil type encountered. The developed correction shall be used for adjusting the nuclear wet density readings. The results of the in-place density, moisture content, and one point compaction test shall be reported to the Contracting Officer's Representative by the end of the working day following the in-place density test.

4. One-Point Compaction Test. As a minimum, the Contractor shall perform a one-point compaction test at every fifth (5th) in-place density test. If the Nuclear Method is used for in-place testing, every other one-point compaction test shall be performed at the sand-cone verification test location on a sample from the same material location as the in-place density test in accordance with ASTM D 698.

The material shall be compacted at the same water content as the field test if it is estimated to be on the dry side of optimum laboratory water content. If the field water content is estimated to be above the optimum water content, the corresponding lab sample shall be dried to an estimated water content which is not more than 3 percent dry of the actual optimum water content. The water content/dry density point on the one-point compaction test shall be plotted on the family of curves for the same soil type from the same borrow source. The compaction control curve is estimated by projecting a curve that is parallel to the adjacent compaction curves. The optimum water content and maximum dry density shall be estimated from the control compaction curve. If the laboratory data plots outside of the available family of compaction curves, the Contractor shall perform a complete compaction test in accordance with ASTM D 698.

5. Moisture Content Tests. Moisture content tests at each density test location shall be taken to assure compliance with requirements for fill placement within the design sections as specified in paragraph "Moisture Control." Determination of moisture content shall be performed in accordance with ASTM D 2216 or ASTM D 4643. Determination of moisture content shall not be performed in accordance with ASTM D 6938 (Nuclear Method).

6. In-Place Organic Content Tests. Organic content tests shall be taken at each in-place density test location. Limits of organic content are specified in paragraph MATERIALS. Determination of organic content shall be performed in accordance with ASTM D 2974, Method C.

7. Sand Content Tests. One sand content test shall be obtained from the sample material used for each control compaction curve and one shall be obtained from the sample material used for each in-place density test. Limits of sand content are specified in paragraph MATERIALS. Determination of sand content shall be in accordance withASTM D 1140.

8. Additional Test. In addition to the above frequency of tests, additional test are required as follows:

a. Where the Contracting Officer's Representative has reason to doubt the adequacy of the compaction, organic content, or moisture control.

b. Where the Contractor is concentrating fill operations over a relatively small area.

c. When, in the opinion of the Contracting Officer, embankment materials change substantially, the Contracting Office may direct additional testing.

d. Where non-traditional compaction procedures/equipment are being used.

e. When areas are found not meeting the specified in-place density, Atterberg Limits, sand content, and/or in-place organic content requirements, the Contractor shall retest at no additional cost to the Government after corrective measures have been applied."

4. Page 13, paragraph 3.2.1. Delete this paragraph in its entirety and substitute the following therefore:

"3.2.1 Compacted Fill

"The location and extent of the compacted fill is shown on the drawings. The materials for compacted fill shall be placed or spread in layers, the first or bottom layer and the last two layers not more than 6 inches in thickness and all layers between the first and the last two layers not more than 12 inches in thickness prior to compaction. In reaches where a reinforcing geotextile is to be placed on top of the sand fill embankment, the first layer of clay embankment shall be 15 inches and compacted in accordance with the requirements in Section

310519.05 12 REINFORCEMENT GEOTEXTILE. Embankment material may be placed in water until it is I-foot above water surface, at which point, compaction method begins. The rate of compacted fill placement shall not exceed 2-feet in elevation over a 7-day time frame.

Layers shall be started full out to the slope stakes and shall be carried substantially horizontal and parallel to the levee centerline with sufficient crown or slope to provide satisfactory drainage during construction. When the surface of any compacted layer is too smooth to bond properly with the succeeding layer, it shall be adequately scarified before the next layer is placed thereon as specified in paragraph "Foundation Preparation". Lifts shall be placed in a manner that prevents shrinkage cracks and open voids from developing in previously placed lifts. "

5. Page 13, paragraph 3.2.2. Delete this paragraph in its entirety and substitute the following therefore: "3.2.2 Reserved".

SECTION 32 15 00.00 12

Page 3, paragraph 1.4.1. Delete this paragraph in its entirety and substitute the following therefore:

"1.4.1 Surfacing, General

Payment for the surfacing material required for the features of work (permanent access roads and levee access maintenance road, temporary access roads, and access ramps) will be made at the applicable contract unit price per ton for "Surfacing" or "Surfacing - OWl ", if Optional Work 1 is exercised. Price and payment shall constitute full furnishing all plant, labor, materials and equipment for placing surfacing material; including, subgrade preparation, spreading, compacting, maintenance, removing and offsite disposal, and other incidental work;

all as specified herein and as shown on the drawings."

SECTION 33 40 01.00 12

Delete this section in its entirety.

SECTION 35 3119.04 12

Delete this section in its entirety.

SECTION 35 31 19.50

Page 6, paragraph 2.1, TABLE 1. Change the Surface Void Area Ration of "25 - 40 percent" to "less than 15 percent".

DRAWINGS

1. SHEET ID Nos. G-008, G-009, C-004, C-006, C-103, C-301, C-302, C-303, C-304, C-408, C- 409A. Delete these drawings in their entirety and substitute the following attached revised drawings G-008, G-009, C-004, C-006, C-103, C-301, C-302, C-303, C-304, C-408, C-409A, therefore.

2. Add the attached new drawing SHEET ID No. C-308 to this contract.

SECTION 00010 - BIDDING SCHEDULE

West Shore Lake Pontchartrain, Louisiana, Hurricane and Storm Damage Risk Reduction Project, WSLP-109 Levee and Floodwall, St.

John the Baptist Parish

Item Description Estimated Quantity

Unit Unit Price Estimated Amount

BASE WORK

0001 Mobilization and Demobilization 1 JOB

0002 Access Road Maintenance Surfacing

3,000 TON

0003 Video and Photographic Documentation 1 JOB

0004 Traffic Control and Coordination 1 JOB

0005 Truck Wash-Down Racks 1 JOB

0006 Separator Geotextile 7,600 SY

0007 Levee - Reinforcement Geotextile 14,800 SY

0008 Clearing and Grubbing 1 JOB

0009 Drainage Excavation 1 JOB

0010 Embankment 85,000 CY

0011 Sand Fill Base

0011AA First 69,000 TON 69,000 TON

0011AB All Over 69,000 TON 18,500 TON

0012 Surfacing 3,200 TON

0013 Seeding and Mulching 10 AC

0014 Fertilizer

0014AA First 600 LB 600 LB

0014AB All Over 600 LB 300 LB

0015++ Lime Soil Amendment 11 TON

0016++ Sulfur Soil Amendment 6 TON

TOTAL BASE WORK: $

OPTIONAL WORK 1 (OW1)

Temporary Retaining Structures -

OW1

1 JOB

Temporary Elevated Work Platforms-

OW1

1 JOB

Reinforced Concrete Floodwall -

OW1 1 JOB

0020 Geotechnical Instrumentation - OW1 1 JOB

00010-3 Ed 19-028

0021 Separator Geotextile - OW1 2,000 SY

0022 Levee - Reinforcement Geotextile -

OW1

800 SY

0023 Under Preload - Reinforcement Geotextile - OW1

4,900 SY

0024 Geogrid - OW1 900 SY

0025 Clearing and Grubbing - OW1 1 JOB

0026 Sand Fill Base - OW1 1,650 TON

0027 Preload Embankment Excavation, Remove for Reuse - OW1

1 JOB

0028 Unwatering - OW1 1 JOB

0029 Embankment - OW1 4,000 CY

0030 Preload Embankment - OW1 23,000 CY

0031 Preload Granular Fill Excavation and Disposal - OW1

1 JOB

0032 Vertical Wick Drains - OW1 125,000 LF

0033 Horizontal Strip Drains - OW1 9,000 LF

0034 Grouted Riprap - OW1 900 TON

0035 Piling, Steel Sheet, Type PZ-22 -

OW1

7,110 SF

0036 Steel H-Piling (HP-14x89) - OW1 11,535 LF

0037 Surfacing - OW1 600 TON

0038 Seeding and Mulching - OW1 2 AC

0039 Fertilizer - OW1

0039AA First 100 LBS 100 LB

0039AB All Over 100 LBS 50 LB

0040++ Lime Soil Amendment - OW1 2 TON

0041++ Sulfur Soil Amendment - OW1 1 TON

Pipeline Sleeve (Linde - 12" Hydrogen) - OW1

1 JOB

Pipeline Sleeve (Air Liquide - 12" Oxygen) - OW1

1 JOB

Pipeline Sleeve (Air Liquide - 12" Nitrogen) - OW1

1 JOB

0045 Pipeline Sleeve (Enlink - 20" Natural Gas)- OW1

1 JOB

Pipeline Sleeve (Phillips 66 - 6" Gas Lines) - OW1

1 JOB

00010-4 Ed 19-028

0047 Pipeline Sleeve (Energy Transfer - 12" Crude) - OW1

0048 Pipeline Sleeve (Energy Transfer - 6" Olefin) - OW1

Pipeline Sleeve for (Entergy Transfer - 24" VGO) - OW1

1 JOB

0050 Jacking Frame (Linde - 12" Hydrogen) - OW1

1 JOB

0051 Jacking Frame (Air Liquide - 12" Oxygen)- OW1

1 JOB

0052 Jacking Frame (Air Liquide - 12" Nitrogen) - OW1

0053 Jacking Frame (Enlink - 20" Natural Gas)- OW1

0054 Jacking Frame (Phillips 66 - 6" Gas Lines) - OW1

1 JOB

0055 Jacking Frame (Energy Transfer - 12" Crude) - OW1

1 JOB

0056 Jacking Frame (Energy Transfer 6" Olefin) - OW1

1 JOB

0057 Jacking Frame (Energy Transfer

24" VGO) - OW1

0058 Articulating Concrete Mat - OW1 3,200 SY

TOTAL OW1 $

TOTAL BASE + OW1 $

++Items not subject to the requirements of FAR 52.211-18 VARIATION IN ESTIMATED QUANTITY.

**The unit "JOB" as used in this Bidding Schedule is synonymous with the term "Lump Sum" used elsewhere within these plans and specifications.

Award will be made as a whole to one bidder.

NOTE 1: Bidders shall furnish unit prices for each item listed in the Schedule requiring a unit price. If the bidder fails to insert a unit price in the appropriate blank for required item(s), but does furnish an extended total, or an estimated amount for such item(s), the Government shall deem the unit price to be the quotient obtained by dividing the extended amount for that line item by the quantity. IF A BIDDER OMITS BOTH THE UNIT PRICE AND THE EXTENDED

TOTAL OR ESTIMATED AMOUNT FOR ANY ITEM, ITS BID SHALL BE

DECLARED NON-RESPONSIVE AND THEREFORE INELIGIBLE FOR

AWARD.

NOTE 2: Any bid may be rejected if the Contracting Officer determines in writing that it is unreasonable as to price. Unreasonableness of price includes not only total price of bid, but the price for individual line items as well. Any bid may be rejected if the prices for any line items or sub line items are materially unbalanced (See FAR 14.404-2).

NOTE 3: 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. The NTP will be issued immediately after

00010-5 Ed 19-028 verification of acceptable performance and payment bonds. Within seven (7) days after issuance of the NTP, the Contractor shall initiate a meeting to discuss the submittal process with the Area or Resident Engineer or his authorized representative. Physical work cannot start until the Accident Prevention Plan, Contractor Quality Control Plan, and other submittals which may be required, have been submitted and approved and all preliminary meetings called for under the contract, have been conducted.

NOTE 4: RAPID VENDOR PAYMENT: Web based instructions for the submission of invoices; http://www.mvn.usace.army.mil/BusinessWithUs/Contracting/RapidVendorPaym ent.aspx

NOTE 5: OPTIONAL WORK ITEMS. The Government may require the delivery of the numbered line item(s), identified in the schedule as OPTIONAL WORK Items, in the quantities and prices stated in the schedule. The Contracting Officer may exercise OPTIONAL WORK 1 by written notice to the Contractor no later than 60 calendar days after Notice to Proceed. 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.

NOTE 6: EVALUATION OF OPTIONS (FAR 52.217-5 JUL 1990). Except when it is determined in accordance with FAR 17.206(b) not to be in the Government's best interests, the Government will evaluate offers for award purposes by adding the total price for all options to the total price for this basic requirement.

Evaluation of options will not obligate the Government to exercise the option(s).

** If an option is to be exercised at the time of contract award FAR17.208 shall be used in place of FAR 52.217-5

NOTE 7: TIME ADJUSTMENT IN THE EVENT OF THE EXERCISE OF

OPTIONAL WORK. In the event that OPTIONAL WORK 1 items are exercised under the terms of the contract, the time required for completion…