W912P521R0002-0004.pdf

W38XDD10852041

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

PROJECT: Chickamauga Lock Upstream Approach Wall Construction Project PURPOSE: The purpose of this amendment is to:

1. Include the fourth set of Questions and Answ ers.

2. Revise the answ er to question 31 under Amendment 0002 Q&A (highlighted in yellow ). Elevation w as changed from 662.5 to 650.

3. Revise the Price Schedule. (Changes are highlighted in yellow ).

4. FAR 52.252-3, Alternations in Solicitation and DFARS 252.236-7001 Contract Draw ings and Specif ications are updated.

5. Provide revised draw ings 61W520-16-UAW Amendment 0004, 61W520-18-UAW Amendment 0004, and revised specif ications W912P521R0002 TSpecs Amendment 0004.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 13

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

16C. DATE SIGNED

BY 09-Jun-2021

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 W912P521R0002

X 9B. DATED (SEE ITEM 11)

03-May-2021

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

09-Jun-2021

CODE

CELRN-RC-N CONTRACTING BRANCH

110 9TH AVE SOUTH, A405

NASHVILLE TN 37203

W912P5 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912P521R0002

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE (SF 30)

The following have been added by full text:

AMENDMENT 0004 Q&A

W912P521R0002 Chickamauga Upstream Approach Wall Construction Project

Questions and Answers Amendment 0004

63. Please provide the loading requirements for the Osterberg Load Cell Testing. We cannot find a load in the technical specifications 31 63 27 nor the plan drawings. We have found governing barge impact load of 2,000 kips in the plan drawings.

Answer: The technique shaft shall be tested to failure.

64. Please refer to the questions and answers received on June 4, 2021, question #62. This operation will require multiple subcontractors, including underwater diving. We request more information and detail sketches for the one (1) longitudinal and one (1) transverse dissections of the concrete specimen. The response to question #62 seems to contradict the answer to question #31 (received May 28, 2021), stating “The technique shaft shall be removed to an elevation of 662.5”. It is our interpretation the transverse dissections would include concrete and reinforcing steel below elevation 662.5, thus removing the shaft to an elevation below 662.5.

Answer: The longitudinal dissection will be removed, the transverse dissection shall be used as part of the demolition of the technique shaft, and it shall be at elevation 650. The answer to question #31 posted in the Amendment 0002 Q&A has been revised to reflect this information. Drawings 61W520-16-UAW and 61W520-18-UAW referenced in Amendment 0002 and Amendment 0003 have been updated in Amendment 0004.

65. Please refer to the questions and answers received on June 4, 2021, question #62. Please include the overall length of concrete coring for the technique shaft.

Answer: The technique shaft shall be cored to its full depth.

66. We request this bid due date be extended by one week.

Answer: The proposal due date will not be extended.

67. Plan drawing 65W420-UAW and 65W421-UAW identify six solar powered marine navigation light fixtures affixed to handrail. Bid item 2603 identifies 2 ea. Marine Navigation Lighting. What is the quantity of the marine navigation lighting to bid?

Answer: Price Schedule has been updated to an estimated quantity of 6 for CLIN 2603, Marine Navigation Lights.

68. Reference Plan drawing 61W520-71-UAW: The detail Typical Restrainer Plan has a leader indicating the void between the restrainer bar and the 5” pipe sleeve is filled with anti-corrosion grease. The specification 03 23 02, paragraph 2.1.7.2 indicate the restrainer bars are grouted. Are the precast approach wall box beam restrainer bar annular areas to be greased or grouted?

Answer: Drawing 61W520-71-UAW identifies the area that should be filled with grease. Drawing 61W520-71-UAW, Typical Restrainer Plan directs a contractor to "provide grout for full bearing contact (typ)". Reference the grout specification addressed in this question.

The following have been modified:

AMENDMENT 0002 Q&A

W912P521R0002 Chickamauga Upstream Approach Wall Construction Project

Questions and Answers Amendment 0002

13. Area 3 identified on Slide 19 of the Pre-Proposal Meeting Presentation - What was this used for previously?

Answer: This area was improved and utilized during the cofferdam contract to support the construction of concrete shells on floating barges that were transported downstream through the existing lock and placed as a part of the cofferdam construction.

14. What is the material in the disposal area (Area 5 identified on Slide 19 of the Pre-Proposal Meeting Presentation)?

Answer: The area identified as #5 on slide 19 of the pre-proposal meeting presentation contains disposal material from previous contracts. This disposal material includes but is not limited to, blasted rock, demolished concrete and other material from the excavation contracts. The Contractor will uncover and encounter inert blasting materials while working in this area.

15. At the Watts Bar facility, can the contractor move other beams that are not included in the USAW scope?

Answer: Answer: Yes, however the Contractor will be responsible for any and all damage to all beams during this process. The Contractor will be required to fully describe the planned procedure(s) for moving the beams through the submittal process, as well as provide condition assessment documentation of beams, fencing, and other pertinent items located in the Watts Bar storage area.

16. What is the area at Watts Bar facility that appears to be a loading dock built from coffer cells between the storage area and the loading ramp?

Answer: Answer: This was a loading facility previously used by TVA and USACE that has deteriorated to a point that it is not deemed suitable for use during this contract in its current condition. If the Contractor would like to use this area, all proposed repairs and improvements to make the area safe for use are subject to TVA review and approval. Contractor should anticipate a minimum 60-calendar day review time for submittals requiring TVA approval.

17. Will TVA be using the Watts Bar loading ramp for other projects during this contract?

Answer: There are currently no other known scheduled activities for use of the ramp during this contract;

however, TVA retains the right to use the ramp as needs arise. If TVA requires the use of the ramp, the Contractor would be given a minimum of 90 calendar days warning prior to TVA beginning activities.

18. Has the storage yard at Watts Bar ever flooded?

Answer: Not to the Government's knowledge.

19. Could a contractor make any improvements at the Watts Bar facility, such as building out a ramp adjacent to the Approach Wall beams for loading to the river?

Answer: The Government would consider this, but it would require the Contractor to obtain all necessary permits and TVA approval. The site would need to be restored to its original condition prior to completion of the contract. The Contractor should anticipate a minimum 60-calendar day review time for submittals requiring TVA approval.

20. Upstream River Wall and Land Wall Nose Piers – Will lifting points and centers of gravity be provided for these structures?

Answer: No, determining lifting points and the center of gravity will be the responsibility of the Contractor.

21. Watts Bar – Can the sheet pile bulkhead wall be utilized for staging and/or offloading of the precast beams?

Answer: See response to Question 16.

22. Can the Pier Caps be poured by tremie concrete method, in multiple placements? If yes, can horizontal and vertical joints be made?

Answer: Specification Section 03 31 07 Paragraph 3.8.7. states "Tremie concrete placement within each drill shaft and each pier of the approach wall shall be completed in one continuous pour. " Later in the same section, " The pier cap made of tremie concrete shall be placed to Elevation 672.5." The Contractor should develop their proposal according to the contract plans and specifications. The Government may consider a variance request after award, but additional detail would be required to determine if this is acceptable.

23. Can a sacrificial slab be added below the Pier Caps and left in place?

Answer: A sacrificial slab will increase the loading on the drilled shafts. The Contractor should develop their proposal according to contract plans and specifications. The Government may consider a variance request after award, but additional detail would be required to determine if this is acceptable.

24. What is the specification for the seal between drilled shafts and nose pier shell? Seal detail is on sheet

61W520-26-UAW.

Answer: Drawing 61W520-26 has been updated to include the following note: “Seal design is the responsibility of the Contractor to create a sufficient seal to ensure acceptable concrete placement.”

25. On sheet 61W520-26-UAW, the Shaft Seal Detail and the Section B Detail vertical dimensions differ from one another. Please advise on the correct dimensions.

Answer: Refer to Sheet 61W520-26 Section B detail for the correct dimensions. (Sheet 61W520-26-UAW was updated and uploaded with Amendment 0001).

26. On sheet 61W520-26UAW, the outside diameter of the shaft casing is 6’-6”. On sheet 61W520-19-UAW, the inside diameter is 6’-6” for the shaft casing with a ¾” thick wall, giving an outside diameter of 6’-7.5”.

Please advise on the correct dimension.

Answer: The interior diameter of the casing should be 6'-6". (Sheet 61W520-26-UAW was updated and uploaded with Amendment 0001).

27. 61W510-02-UAW, Note 5 – Road improvement appears to only be the entrance to the Lock Access Road – please verify.

Answer: The road improvement is shown in the hatch area of Drawing 61W510-02-UAW. The area extends from Lake Resort Drive to Trailhead Drive.

28. Reference plan drawing 61W520-71-UAW, detail Typical Restrainer Plan – Please verify grease will be installed from the box beam end of the restrainer and the box beam has been fabricated to allow for the grease to be injected after installation of the restrainer bar.

Answer: On Drawing 61W520-71-UAW, Typical Restrainer Plan indicates a grease vent/port (TYP) is shown on both the beam and pier side of the restrainer

29. Approach Wall Beams – Please provide pick points for the precast beams and/or lifting devices required to lift these items. Also, please provide bearing details for the precast box beams.

Answer: The as-built drawings of the Approach Wall beams have been provided in Amendment 0002. The Contractor is responsible for the design and verification (load test) of any material they elect to use.

30. During the Pre-Proposal Virtual Meeting it was mentioned, and the Project Specifications (Section 01 54 00, Part 1.13) indicate, that the Contractor’s plan for anchoring/mooring and removing marine equipment upstream of the spillway will require approval by USACE and TVA. Please provide guidance for an anchoring/mooring plan that would be considered acceptable by TVA, a third-party approver, so that this work can be priced appropriately.

Answer: The Contractor's anchor/mooring plan must be specific to the equipment that will be used to accomplish the work located immediately upstream of the dam spillway according to the Contractor’s means and methods, be based on a CFD (computation fluid dynamic) model developed with sufficient detail to identify the forces anticipated to act on the equipment/anchorage during all spillway operating/flow events that the Contractor plans to perform work, and meet the requirements identified in paragraph 1.13 of Specification 01 54 00.

31. Is the technique shaft to be left in place? If not, at what elevation is it to be removed and where should it be disposed?

Answer: The technique shaft shall be removed to an elevation of 650, reference Drawings 61W520-16- UAW and 61W520-18-UAW. The Contractor may remove the technique shaft to an elevation lower than 650 if they choose. Removed material should be disposed of in accordance with the specifications.

32. Will wage determinations be provided for this solicitation?

Answer: Please refer to Section 01 00 00 - General Requirements WAGE DETERMINATION. Any updates to the Wage Determinations will be reflected in an amendment (if applicable).

33. Please refer to specification section 01 31 00. Is this specification required for this contract? It appears to be a newer specification not utilized in other districts and covers the same data management as the RMS system.

Answer: Yes, Specification Section 01 31 00 is required for this contract.

34. Reference spec paragraph 31 63 27, 1.6 Contractor Qualifications and Experience. Can the prime contractor self-perform this work if they meet this requirement?

Answer: Yes, the Prime Contractor may self-perform this work if they meet the specification requirements.

Specification 31 63 27 paragraph 1.6 has been updated.

35. Approach Wall Beams – Please provide pick points for the precast beams and/or lifting devices required to lift these items. Also, please provide bearing details for the precast box beams.

Answer: See response to Question 29.

36. Can the concrete approach wall beam(s) be supported in the middle on approx. 46’ centers?

Answer: Specification Section 03 41 34, Paragraph 3.1.1 states, "Precast beams shall be transported with the points of support and direction of the reactions with respect to the beam and approximately the same orientation during transportation and storage as when the beam is in its final position." The Contractor should develop their proposal according to contract specifications. The Government may consider a variance request after award, but additional detail would be required to determine if this is acceptable.

37. Are we to provide and install the handrails associated with beams UR-1T and UL-1T?

Answer: No, handrail for UR-1T and UL-1T will not be required for this contract.

38. Are the ladder anchors and couplers already installed on the precast approach wall beams? Reference 61W520-74, detail 4.

Answer: Yes, the couplers are installed in the precast beams. See As-Built drawings of Approach Wall beams included in Amendment 0002.

39. Please provide accurate description of grating requirement. Grating called out is not a valid grating size. Plan drawing 61W520-41 calls out ¾’ x 1 3/16” Type W-19-2 and the specs call for heavy duty grating which is called out as 19-H-2 but also requires a bar size to be totally accurate

Answer: Additional grating details are provided in the updated version of 61W520-41 - UAW in Amendment 0002.

40. Section 00 73 00 – Supplementary Conditions, paragraph 6 WAGE DETERMINATIONS states: The applicable wage determination does not provide wage rate information for divers, boat operators/captains, and ironworkers. The Contractor will have to go through the conformance process after award. The conformance process is outlined in FAR 22.406-3, Additional Classifications.

The provided Wage Determinations TN20210145 and TN20210121, both dated 1/1/2021 do not provide wage determinations for Carpenters, Pile Drivers, additional Labor classifications and Foreman in addition to the above noted labor classifications. In order for each bidder to provide competitive bids it is essential to understand the labor wage rates to be included for the project. It is our understanding most of the labor classifications noted above are currently working at the Chickamauga project site and this information should be known to the Government. We request wage determinations to be provided for the labor classifications noted above to be provided to all bidders to ensure an equal bidding process.

Answer: The Department of Labor (DOL) is responsible for issuing wage determinations that apply to federal projects. Accordingly, DOL issued Wage Determinations TN20210145 and TN20210121, which apply to Heavy Construction projects in Hamilton County, TN. USACE cannot amend or change these Wage Determinations. Therefore, the Contractor will be required to complete the conformance process outlined in the Solicitation and FAR 22.406-3, Additional Classifications, to determine a wage and fringe benefit rate for the affected labor disciplines. Contractors can reference DOL All Agency Memorandum 213 for additional information on how DOL processes conformance requests and determines wage rates.

41. Please reference the technical specifications, noted in several locations the reference to the USACE providing a geologist to log exploratory boring. Is the Contractor to provide a geologist at the drill rig during exploratory boring? It appears a Contractor provided geologist is required for core drilling for defective drilled shafts.

Answer: The Contractor does not need to provide a geologist at the drill rig during exploratory borings. A Contractor geologist is only required to log core for defective drilled shafts.

42. Specification section 03 41 34 Installation of Government Furnished Precast Concrete Beams, Part 1.1 Scope references procedure and sequence of construction for the upstream guard wall and guide wall as shown in the drawings. Part 3.1.1 Handling references the precast beams to be lifted only by devices which have been cast in the beams. There appear to be no details provided in the drawings about procedure or sequence related to handling and transporting the beams or any details provided for the beams and the cast in lifting devices. Please provide details for the precast beams and the lifting devices that are to be used in transport.

Answer: See response to Question 29.

43. Specification section 3.2.2.2 Conduit Embedded in Concrete, calls out for PVC Coated Rigid Conduit Embedded in concrete. The Conduit schedule calls for RGS. Please clarify.

Answer: PVC-coated RGS is only required in and around the location the conduit exits the concrete.

Reference Specification Section 26 05 00, Paragraph 3.2.2.2.

44. Please confirm that 11 x 17 pages are counted as one page when included in a section’s page count.

Answer: Yes. However, the 11" X 17" organizational chart does not count toward the five (5) page limit for the narrative under Section 5.1 Submission Requirements.

45. Volume I, Factor I (Past Performance), paragraph 4.0. Please clarify that information required for subcontractors as stated in paragraph one should be provided for major subcontractors (any subcontractor completing more than 10% of the solicited work).

Answer: See the revisions to Section 00 21 00 - Procedures for Submittal of Offers and Proposal Evaluation Approach Paragraph 4.0 Volume I – Factor I (Past Performance) – Performance Assessments.

46. Section 7.2 Evaluation Criteria states that “the SB Participation Plan must meet the minimum Total Small Business Participation goal of 23% of total contract value…”. We recognize the SB Participation Plan is an important evaluation factor; however, federal procurement goals should be realistic, challenging, and attainable. Our preliminary market research for small business participation does not appear to support the 23% of total contract value participation goal given the narrowly tailored and specific scopes of work under this solicitation, which differs from the December 2020 Industry Day presentation. Our own market research suggests a SB participation rate of less than half of 23%. Please consider changing the SB Participation Goal to reflect “maximum practicable opportunity” for small business participation consistent with the current work scope elements under this contract.

Answer: The Small Participation Goal percentage has been lowered from 23% to 15% along with other revisions to Section 00 21 00 Procedures for Submittal of Offers and Proposal Evaluation Approach Paragraph 7.2 Evaluation Criteria.

47. During the Pre-Proposal Virtual Meeting it was mentioned, and the Project Specifications (Section 01 54 00, Part 1.13) indicate, that the Contractor’s plan for anchoring/mooring and removing marine equipment upstream of the spillway will require approval by USACE and TVA. Please provide guidance for an anchoring/mooring plan that would be considered acceptable by TVA, a third-party approver, so that this work can be priced appropriately.

Answer: See response to Question 30.

48. Due to the late release of Amendment No. 1, delays/challenges currently being experienced by subcontractors attempting to work through the USACE security requirements and obtain access to the controlled technical documents, the bid period extending through the Memorial Day Holiday, and the extensive market research and subcontractor outreach required to develop a small business participation plan meeting the RFP requirements, we request USACE extend the bid due date by at least 2-weeks.

Answer: Proposal due date is extended to June 17, 2021 1:00 P.M. Central Time. We plan on posting another amendment that may include spec and drawing changes but do not anticipate extending the proposal due date past June 17, 2021.

49. Volume I, Factor I (Past Performance) and Factor III (Safety Management) refer to “bedrock removal in areas that require a degree of precision to a prescribed tolerance” and “rock excavation adjacent to sensitive structures”. After review of the RFP documents, we are unaware of any rock excavation that is required by the contract, other than rock that would be removed with the drilled shaft installations. Is this the rock removal/excavation that USACE is referring to under the submission requirements or does the contract scope include rock removal/excavation someplace else? Please indicate where the contract requires rock removal/excavation if not limited to just the drilled shaft installations.

Answer: Rock excavation is only required for drilled shaft installation.

50. Due to the complexity of the project, can the bid date be extended two weeks?

Answer: See response to Question 48.

SECTION 00 10 00 - SOLICITATION

PRICE SCHEDULE

PRICING SCHEDULE

Upstream Approach Wall Contract Chickamauga Lock Replacement

W912P521R0002 Amendment 0003

PRICE

ITEM

DESCRIPTION SPECIFICATION

NUMBER

EST.

QTY.

UNIT UNIT

PRICE

ESTIMATED

AMOUNT

01 Div 01 GENERAL

REQUIREMENTS

0101 Mobilization and Demobilization

01 22 00 1 Job $ $

0102 Miscellaneous Site Work 01 22 00 1 Job $ $ 0103 Performance and Payment

Bonds 01 22 00 1 Job $ $

0104 Data Management 01 31 00 1 Job $ $ 0105 Maintenance and Protection of Traffic 01 50 00 1 Job $ $

0106 Diversion and Care of Water 01 57 24 1 Job $ $ 0107 As-Built Drawings 01 78 00 1 Job $ $

02 Div 02 EXISTING

CONDITIONS

0201 Drill and Case through Overburden - Marine

02 32 00 1000 LF $ $

0202 Rock Core Drilling, Vertical Holes - Marine

02 32 00 1300 LF $ $

0203 Lab Testing- Unconfined Compression Test, YM, weight, PR (Rock)

02 32 00 18 EA $ $

0204 Laboratory Testing Direct Shear Strength

02 32 00 12 EA $ $

0205 Laboratory Testing Moisture 02 32 00 6 EA $ $ 0206 Overburden - Split Spoon

Sampling

02 32 00 200 EA $

03 Div 03 CONCRETE

0301 Reinforcing Steel - Furnish and Install

03 20 02 464 TN $ $

0302 Pier Structural Concrete (5.5ksi)

03 70 00 3550 CY $ $

0303 Approach Wall Tremie Concrete (5ksi)

03 31 07 2135 CY $ $

0304AA Contact Grout - First 350 Cubic Feet

03 61 00 350 CF $ $

0304AB Contact Grout - Over 350 Cubic Feet

03 61 00 70 CF $ $

0305 Precast Concrete Beams Defect Repair

03 41 34 500 LF $ $

09 Div 09 PAINTING:

HYDRAULIC

STRUCTURES

0901 Paint Repair and Touch Up 09 97 02 100 SF $ $

05 Div 05 METALS 0501 Miscellaneous Metal 05 50 15 1 Job $ $ 0502 Upstream Nose Pier Shell 05 50 15 1 Job $ $ 0503 Handrail (Project Wide) 05 50 15 1410 LF $ $

22 Div 22 PLUMBING

2201 Upstream Approach Walls Embedded Piping

22 00 01 1 Job $ $

26 Div 26 ELECTRICAL

2601 Upstream Approach Walls Servce Embedded Electrical Items

26 05 00.00 40 1 Job $ $

2602 Lock Lighting 26 05 00.00 40 6 EA $ $ 2603 Marine Navigation Lighting 26 05 00.00 40 6 EA $ $

31 Div 31 EARTHWORK

3101 72" Approach Wall Drilled Shaft - Technique Shaft

31 63 27 1 Job $ $

3102 72" Upstream Approach Wall Drilled Shaft

31 63 27 2692 LF $ $

3103 Cofferdam Obstruction for Pier Construction

31 63 27 1 Job $ $

35 Div 35 WATERWAY

AND MARINE

CONSTRUCTION

3501 Upstream Install Precast Beams and Appurtenances

03 41 34 1 Job $ $

TOTAL

ESTIMATED

AMOUNT

SECTION 00 21 00 - INSTRUCTIONS

52.252-3 ALTERATIONS IN SOLICITATION (APR 1984)

Portions of this solicitation are altered as follows:

Amendment 0001:

PROJECT: Chickamauga Lock Upstream Approach Wall Construction Project PURPOSE: The purpose of this amendment is to:

1. Extend the questions period to May 26, 2021, 9:00 A.M. Central Time.

2. Extend the proposal due date to June 9, 2021, 1:00 P.M. Central Time.

3. Include the first set of Questions and Answers.

4. Provide the Virtual Pre-Proposal Attendance Sheet and PowerPoint Slides and provide the In-Person Site Visit Attendance Sheet.

5. Provide Drawings 61W510-02-UAW, 61W510-90-UAW, 61W510-91-UAW, 61W510-92-UAW, and 61W520-

26-UAW.

6. Provide CHI-L GBR ARCADIS GBR and Drill Logs Updated Survey, GDR Volume 1 Parts 1-6, GDR Volume 2, and The Chickamauga Report (1942).

7. Provide the Raw Point Data in a file titled "New_Chick_Upper_App_Median_2ft".

8. The documents mentioned in line 5 of this section have been combined in a PDF Portfolio titled "Amendment 0001 Documents".

9. FAR 52.252-3, Alternations in Solicitation and DFARS 252.236-7001 Contract Drawings and Specifications are updated.

Amendment 0002:

PROJECT: Chickamauga Lock Upstream Approach Wall Construction Project PURPOSE: The purpose of this amendment is to:

1. Extend the proposal due date to June 17, 2021, 1:00 P.M. Central Time.

2. Include the second set of Questions and Answers.

3. Revise Sections 4.0, 5.1(e), and 7.2 in Section 00 21 00 SECTION 00 21 00 PROCEDURES FOR SUBMITTAL

OF OFFERS AND PROPOSAL EVALUATION APPROACH

4. Provide revised drawings 61W520-41-UAW and 61W520-26-UAW

5. Provide CKL USAW Amendment 2 As-Built_Compiled Part 1 & 2.

6. FAR 52.211-10 Commencement, Prosecution, And Completion of Work is revised.

7. FAR 52.252-3, Alternations in Solicitation and DFARS 252.236-7001 Contract Drawings and Specifications are updated.

Amendment 0003:

PROJECT: Chickamauga Lock Upstream Approach Wall Construction Project PURPOSE: The purpose of this amendment is to:

1. Include the third set of Questions and Answers.

2. Revise the Price Schedule.

3. Revise the contract period of performance and update FAR 52.211-10 Commencement, Prosecution, and Completion of Work.

4. Revise Section 5.1(e) in Section 00 21 00 PROCEDURES FOR SUBMITTAL OF OFFERS AND PROPOSAL.

5. FAR 52.252-3, Alternations in Solicitation and DFARS 252.236-7001 Contract Drawings and Specifications are updated.

6. Revise Section 3 line (g) in Section 00 73 00 – SUPPLEMENTARY CONDITIONS.

7. Provide revised drawings 61W520-16-UAW, 61W520-18-UAW, and revised specifications W912P521R0002 TSpecs Amendment 0003.

Amendment 0004:

PROJECT: Chickamauga Lock Upstream Approach Wall Construction Project PURPOSE: The purpose of this amendment is to:

1. Include the fourth set of Questions and Answers.

2. Revise the answer to question 31 under Amendment 0002 Q&A (highlighted in yellow). Elevation was changed from 662.5 to 650.

3. Revise the Price Schedule. (Changes are highlighted in yellow).

4. FAR 52.252-3, Alternations in Solicitation and DFARS 252.236-7001 Contract Drawings and Specifications are updated.

5. Provide revised drawings 61W520-16-UAW Amendment 0004, 61W520-18-UAW Amendment 0004, and revised specifications W912P521R0002 TSpecs Amendment 0004.

SECTION 00 70 00 - CONDITIONS OF THE CONTRACT

252.236-7001 CONTRACT DRAWINGS AND SPECIFICATIONS (AUG 2000)

(a) The Government will provide to the Contractor, without charge, one set of contract drawings and specifications, except publications incorporated into the technical provisions by reference, in electronic or paper media as chosen by the Contracting Officer.

(b) The Contractor shall--

(1) Check all drawings furnished immediately upon receipt;

(2) Compare all drawings and verify the figures before laying out the work;

(3) Promptly notify the Contracting Officer of any discrepancies;

(4) Be responsible for any errors that might have been avoided by complying with this paragraph (b); and

(5) Reproduce and print contract drawings and specifications as needed.

(c) In general--

(1) Large-scale drawings shall govern small-scale drawings; and

(2) The Contractor shall follow figures marked on drawings in preference to scale measurements.

(d) Omissions from the drawings or specifications or the misdescription of details of work that are manifestly necessary to carry out the intent of the drawings and specifications, or that are customarily performed, shall not relieve the Contractor from performing such omitted or misdescribed details of the work. The Contractor shall perform such details as if fully and correctly set forth and described in the drawings and specifications.

(e) The work shall conform to the specifications and the contract drawings identified on the following index of drawings:

CKL - USAW_Tspecs_W912P521R0002

CKL - USAW_Tplans_W912P521R0002

Chickamauga Flow Data 1990-2021 (For Informational Purposes Only)

Amendment 0001: 61W510-02-UAW, 61W510-90-UAW, 61W510-91-UAW, 61W510-92-UAW, 61W520-26- UAW, CHI-L GBR ARCADIS GBR and Drill Logs Updated Survey, GDR Volume 1 Parts 1-6, GDR Volume 2, The Chickamauga Report (1942), and New _Chick_Upper_App_Median_2ft. (For Informational Purposes Only)

Amendment 0002: 61W520-41-UAW, 61W520-26-UAW, and CKL USAW Amendment 2 As-Buit_Compiled Part 1 & 2

Amendment 0003: 61W520-16-UAW, 61W520-18-UAW, and W912P521R0002 TSpecs Amendment 0003

Amendment 0004: 61W520-16-UAW Amendment 0004, 61W520-18-UAW Amendment 0004, and W912P521R0002 TSpecs Amendment 0004 (End of clause)

(End of Summary of Changes)