DCKA-2024-B-0011_Amd4.pdf

AMENDMENT OF SOLICITATION / MODIFICATION OF CONTRACT

1. Contract Number Page of Pages

1 12

2. Amendment/Modification Number

Amendment No. 4

3. Effective Date 4. Requisition/Purchase Request No.

5. Solicitation Caption

See Box 16C DCKA-2024-B-0011 Rehabilitation of I-395 HOV Bridge over

Potomac River

6. Issued by: Code 7. Administered by (If other than line 6)

District Department of Transportation Office of Contracting and Procurement 55 M Street SE – 7th Floor Washington, DC 20003

District Department of Transportation Office of Contracting and Procurement 55 M Street SE – 7th Floor Washington, DC 20003

8. Name and Address of Contractor (No. street, city, county, state and zip code)

TO ALL PROSPECTIVE OFFERORS

X

9A. Amendment of Solicitation No.

DCKA-2024-B-0011

9B. Dated (See Item 11) December 28, 2023

10A. Modification of Contractor/Order No.

Code

Facility

10B. Dated (See Item 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in item 14. The hour and date specified for receipt of Offers is extended. is not extended.

Offers 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 one (1) copy of the amendment: (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) BY separate letter or fax which includes a reference to the solicitation and amendment number. 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 may be made by letter or fax, provided each letter or telegram 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 CONTRACTORS/ORDERS ,

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

A. This change order is issued pursuant to (Specify Authority): 27 DCMR, Chapter 36, Section 3601.2(b) 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 data etc.) set forth in item 14, pursuant to the authority of:

C. This supplemental agreement is entered into pursuant to authority of: 27 DCMR 3601.2 Change Clause, 27 DCMR 2005.6(d) as amended

D. Other (Specify type of modification and authority) Paragraph 15, Changes, Standard Contract Provisions

E. IMPORTANT: Contractor is not is required to sign this document and return one (1) copy to the issuing office.

14. Description of Amendment/Modification (Organized by UCF Section headings, including solicitation/contract subject matter where feasible.)

This amendment serves as:

1. Supplemental response to questions submitted by prospective bidders. The questions and responses are affixed as

Attachment 1, covering page 2 of this amendment.

2. Revisions to the Special Provisions affixed as Attachment 2, covering pages 3-5 of this amendment.

3. Instructions for special provisions appendices affixed as Attachment 3, covering pages 6 of this amendment.

4. Instructions for revised plan sheets Attachment 4, covering page 7 of this amendment.

5. Issue Revises Plans (uploaded separately); Special Provision Appendices (affixed to this amendment as Attachment 5, covering pages 8-12); and the Revised Price Schedule (uploaded separately).

6. Extend the due date for bids to February 19, 2024, at 2:00pm EST.

7. Extend the date of public bid reading to February 20, 2024, at 2:00pm EST.

All other terms and conditions remain unchanged.

Except as provided herein, all terms and conditions of the document is referenced in Item 9A or 10A remain unchanged and in full force and effect.

15A. Name and Title of Signer (Type or print) 16A. Name of Contracting Officer

Mohammad Ferdaws

15B. Name of Contractor

(Signature of person authorized to sign)

15C. Date Signed 16B. District of Columbia

(Signature of Contracting Officer)

16C. Date Signed

Feb 6, 2024

ATTACHMENT 1

34. Please clarify if Transurban will waive the toll fees for the Contractors work vehicles.

Answer: A response will be provided in future amendment. I-395 HOV toll fees will be waived for the Contractor’s vehicles assigned to and used for the project activities.

57. Please consider adding a Line item for “Construction Lane Closing” for all the maintenance of traffic. Typically

DDOT has added this item as a LS pay item on its projects before.

Answer: No lane closure required during any of the MOT phases as traffic lanes will be shifted Additional pay item is not applicable. Construction Lane Closing pay item will be added via an amendment.

75. What constitutes water disturbance? Would we have to have turbidity curtains for each pier or would we be able to move curtains? Can we move/spud barges in the water during the season? Would we have to sound monitor?

Answer: See the response for Question 116. See the responses for Questions 115 and 117.

96. Some areas of deck may have received over 4.5” of overlay which will stay in place. If the existing overlay material is

Silica-Fume please confirm that the new LMC overlay is compatible with the existing material and there will not be a bonding issue.

Answer: See Response to Comment No. 94. The 4.5” thickness is the average thickness of the existing overlay. See the response to Question 95. 4.5” thickness is the average thickness of the existing overlay.

110. The permit for this project also restricts activities within the Potomac River from April 15th through October 15th to mitigate disturbance of submerged aquatic vegetation (SAV), (page 4 paragraph 12 of the permit). Again, temperature restrictions on the epoxy grout that will be used to inject the cracks underwater make conducting injecting operations during this time frame critical to completing the project. Do you anticipate a restriction waiver being approved for work conducted by divers for this project:

Answer: See response Question 111. Epoxy grouting is allowed under the Letter Department of the Army Project -

NAB-2021-0015 Response: A waiver of time-of-the year restriction and associated restrictions and qualifications have been issued by DOEE and will be included in an amendment. Epoxy grouting is allowed under the Letter

Department of the Army Project - NAB-2021-0015. A waiver of time-of-the year restriction and associated restrictions and qualifications have been issued by DOEE and will be included in an amendment.

111. What constitutes in-water activities as they pertain to the permit? Would floating equipment and moving of turbidity curtains from one pier to another pier be in violation of this permit?

Answer: USACE has approved the mentioned activities to be performed during time of year restrictions. Response:

See response to Question 116. USACE has approved the mentioned activities to be performed during time of year restrictions. See response to Question 117.

116. The permit for this project also restricts activities within the Potomac River from April 15th through October 15th to mitigate disturbance of submerged aquatic vegetation (SAV), (page 4, paragraph 12 of the permit). Again, temperature restrictions on the epoxy grout that will be used to inject the cracks underwater make conducting injecting operations during this time frame critical to completing the project. Do you anticipate a restriction waiver being approved for work conducted by divers for this project?

Answer: See the response for Comment No. 114. The waiver of the time-of-year restriction for this project will be provided via an amendment.

ATTACHMENT 2

• In TABLE OF CONTENTS (second page of the Special Provisions), replace “51. NOT USED INTENTIONALLY LEFT

BLANK” with “51. PREFORMED PAVEMENT MARKINGS 6 INCH, 6 INCH DASHED, 12 INCH, AND 24 INCH………24”.

• In the list of APPENDICES (5th page of the Special Provisions), insert “26 DOEE FISHERIES AND WILDLIFE DIVISION

– WAIVER OF TIME-OF-YEAR RESTRICTION (1 PAGE)” after “25 FEDERAL AVIATION ADMINISTRATION (FAA)

DETERMINATION LETTER (5 PAGES)”

• In SECTION 46 DEMOLITION OF PIER A CAP,

1. Replace the second paragraph with the following:

• “GENERAL - Work under this item consists of removal and disposal of various materials from the existing structure which are not otherwise specified. Work for this item also includes design and installation of temporary support system before demolition begins. Work under this Special Provision includes, but is not limited to the following items:”

2. Replace the second paragraph’s sub-item 1 with the following:

“Design, installation, and removal of a temporary support system to support the bridge superstructure at Pier A, including all jacking and blocking equipment, during the removal and replacement of the Pier A cap.”

• In SECTION 51 NOT USED, replace “SECTION 51 NOT USED - INTENTIONALLY LEFT BLANK” in its entirety with the following:

“51. PREFORMED PAVEMENT MARKINGS 6 INCH, 6 INCH DASHED, 12 INCH, AND 24 INCH, Items 612 997, 612 998, 612 999, and 613 000:

This Special Provision supplements and modifies Section 612.14 of the Standard Specifications.

DESCRIPTION – This work consists of furnishing and installing 6 inch, 6 inch dash, 12 inch, and 24 inch permanent pavement markings as specified in the Contract Documents.

MEASURE AND PAYMENT – The unit of measure for Preformed Pavement Markings lines of specified width will be the linear foot. The unit of measure for Preformed Pavement Markings symbols and letters will be each. Payment will be made at the Contract unit price per linear foot which will include materials, all labor, tools, equipment, and incidentals necessary to complete the Work.”

• In SECTION 55 REPAIR AND REPLACE PCC CIRCULAR AND/OR GUTTER, replace the MEASURE AND PAYMENT part with the following:

“MEASUREMENT AND PAYMENT – Payment for REPAIR-REPLACE PCC CIRCULAR CURB AND/OR

GUTTER will be made at the Contract unit price per cubic yard to complete all of the specified work.”

• In SECTION 61 PCC – PIER A CAP REPLACEMENT, replace the third paragraph with the following:

“EXISTING TEMPORARY SUPPORT: The Contractor shall disassemble and remove the existing temporary support system from Pier A and deliver the material to the location that the Department will specify. The existing temporary support shall be removed only in the area where the Contractor needs access to install the new temporary support system specified in the Contract drawings. Unrepaired portions of Pier A cap shall be supported through the duration of Pier A work prior to the reconstruction of the pier cap and columns as shown on the plans. The contractor shall take care not to damage the components of the existing support system during the disassembly, removal, and delivery.”

• In SECTION 62 PIER A CAP REINFORCING STEEL, replace DESCRIPTION part with the following:

“DESCRIPTION - The work under this section shall consist of furnishing and placing corrosion resistant reinforcing steel, Low Carbon Chromium, ASTM A1035 (MMFX-2) reinforcing steel in the new pier cap and extended portions of columns at Pier A.”

• In SECTION 64 REPAIR PRESTRESSED CONCRETE BEAM ENDS, replace the fifth paragraph with the following:

“MATERIALS – Section 703.26 applies to self-consolidating concrete, Class C, High Early Strength shall be used for Prestressed Concrete Beam End Repair.”

• In SECTION 71 PCC PARAPET REPAIR,

1. Include “708 022” at the end of the section title.

2. Replace the fourth paragraph with the following:

“(C) MEASURE – The unit of measure for Item 708 021 will be the cubic yard of repair concrete. The unit of measure for Item 708 022 will be linear feet of crack repair.”

3. Replace the fifth paragraph with the following:

“(D) PAYMENT – Payment for PCC PARAPET REPAIR – TYPE 1 will be made per each cubic yard and for PCC PARAPET REPAIR – TYPE 3 will be made per linear feet. Payment will be made at the contract unit price, which price will include all materials, labor, equipment, tools, disposal of materials away from the site, and incidentals required for completing the work as required herein and as shown on the plans.”

• In SECTION 75 LATEX-MODIFIED CONCRETE OVERLAY – 4.5 IN,

1. Replace the third paragraph with the following:

“This work is the placement of new latex-modified concrete overlay on the existing concrete deck as shown on the Contract drawings or as directed by the Engineer. All areas shall receive a 4.5” deep removal by milling and hydro-demolition and replacement with 4.5” latex modified concrete (LMC) overlay. The Contractor shall use the survey information obtained prior to milling and match elevation data across the bridge deck and approach slabs.”

2. Replace Part (B) with the following:

“(B) MATERIALS - As specified in the Section 714.03(B) with the following exceptions: a representative of the LMC supplier shall attend the placement of the trial batch and the entire LMC placement on the bridge deck.”

3. Replace the first paragraph of Part (C) with the following:

“(C) CONSTRUCTION REQUIREMENTS – Limitations of Operations – Replace the first paragraph of Section 714.03(D.3) with the following: No vehicular traffic shall be permitted on the LMC surface until the test cylinders for each section of LMC overlay break at a minimum compressive strength of 3000 psi or 24 hours curing is attained, whichever is longest.

Curing shall be performed using fogging and wet curing as directed by the Engineer.”

4. Replace the seventeenth paragraph of Part (C) with the following:

“Wet curing of the LMC overlay is mandatory for 24 hours or until a minimum cylinder compressive strength of 3000 psi is attained, whichever is the longest. At a minimum cylinder compressive strength of 3000 psi or after 24 hours of wet curing, whichever is the longest, the curing can cease, and the lane may be opened to traffic.”

5. Replace the eighteenth paragraph of Part (C) with the following:

“Three LMC cylinders shall be broken twelve hours after the completion of the delivery of the last delivery vehicle.

Three more cylinders shall be broken every six hours thereafter until a minimum cylinder compressive strength of 3000 psi is attained for the cylinders taken from the last delivery truck for each section of each lane of LMC overlay that is placed.”

file:///C:/Users/skim/OneDrive%20-%20Government%20of%20The%20District%20of%20Columbia/Desktop/DDOT%20STANDARDS/DDOT%20Construction%20Specs%20(Gold%20Book)%202013.pdf

6. Replace the first paragraph of Part (D) with the following:

“(D) MEASUREMENT - The unit of measurement for Item 714 004 – LATEX MODIFIED CONCRETE OVERLAY– 4.5 IN will be the cubic yard based on the depth of overlay placed as noted in each pay item.”

• In SECTION 77 HYDRO-DEMOLITION OF EXISTING DECK OVERLAY – 2 INCH,

1. Replace the fourth paragraph with the following:

“After completion of 2 inch hydrodemolition work, deck shall be sounded and delaminated areas shall be removed and repaired in accordance with Type A patching described herein.”

2. Insert the following paragraphs after the fourth paragraph in sequence as shown:

a. “Hydro-demolition shall consist of removing concrete to a depth of 2 inch below the milled surface of hydraulic cement concrete decks in areas of sound concrete, and removing concrete to an additional depth of 1 inch below the bottom of the top mat of reinforcing steel in areas of deteriorated concrete (e.g. spalls or delaminations at or below top mat reinforcement).”

b. “In areas where the reinforcing steel is partially exposed for fifty (50) percent or less of the perimeter of the bar, concrete removal is not required if the concrete is sound.”

3. Under MEASUREMENT section, replace the paragraph with the following:

“MEASUREMENT – The unit of measurement for Item 715 993 – HYDRO-DEMOLITION 2.0 IN OF EXISTING DECK OVERLAY will be the cubic yard for hard surface excavation.”

4. Under PAYMENT section, replace the paragraph with the following:

“PAYMENT – Payment for this work will be made at the Contract unit price for the items above, which price will include furnishing all materials, labor, equipment, tools, disposal of materials away from the site, and incidentals to accomplish the work specified and shown. The contract unit price shall be inclusive of any depth of hydro-demolition performed from 2” up to a maximum depth of 1” below the top mat of the deck reinforcement; no additional payment will be made to the Contractor for hydro-demolition depths within the specified depth range below the milled surface.”

• In SECTION 78 REPAIR-REPLACE PCC STRUCTURE, under MEASUREMENT AND PAYMENT – II REPAIR TYPE 2

CONCRETE PATCH, remove Items 716006 and 716018.

In SECTION 80 RECONSTRUCT DECK JOINTS, add the following after GENERAL section:

“MATERIALS –

1. Concrete shall be Class C conforming to Section 817.

2. All other materials shall be as shown in the Contract drawings.”

In SECTION 81 PIER A – EXPANSION JOINT CLOSURE under Part (C), replace the Bullet 3 with the following:

“Reinforcing steel splicing: all existing longitudinal reinforcing steel extending from the existing decks shall be protected, cleaned, and left in place to be reused in the construction of the joint closure. When existing reinforcing steel to remain is damaged during demolition, the Contractor shall, at his own expense, substitute a corrosion resistant reinforcing steel bar (low carbon chromium, ASTM 1035, MMFX-2) of equal size drilled in and grouted to the required lap as per AASHTO LRFD Bridge Design Specifications, 8th Ed., requirements.”

ATTACHMENT 3

Instructions for special provisions appendices:

1. In the list of appendices (the first page of the appendices), insert “26 DOEE FISHERIES AND WILDLIFE

DIVISION WAIVER OF TIME-OF-YEAR RESTRICTION”.

2. After the list of appendices (Page 1), insert the provided coversheet for APPENDIX NO. 01

SUBCONTRACTOR REQUEST APPROVAL FORM”.

3. Replace the first page of the permit with the provided sheet in APPENDIX 05 NATIONAL PARK SERVICE

(NPS) GEORGE WASHINGTON MEMORIAL PARKWAY (GWMP) – SPECIAL USE PERMIT (SUP).

4. Replace the second page of the permit with the provided sheet in 06 NATIONAL PARK SERVICE (NPS)

NATIONAL MALL AND MEMORIAL PARKS (NAMA) – SPECIAL USE PERMIT (SUP).

5. Attach the provided APPENDIX 26 DOEE FISHERIES AND WILDLIFE DIVISION WAIVER OF TIME-

OF-YEAR RESTRICTION.

ATTACHMENT 4

Revised plan sheets instruction to the bidders.

Replace the following plan sheets with the provided sheets, and note the revisions as annotated therein:

a. Sheet 3 (Drawing SQ-01) – SUMMARY OF PAY ITEMS AND QUANTITIES

b. Sheet 4 (Drawing ST-GN-01) – BRIDGE GENERAL NOTES

c. Sheet 5 (Drawing ST-GP-02) – GENERAL PLAN AND ELEVATION

d. Sheet 16 (Drawing ST-DE-13) – PIER A JACKING AND TEMPORARY SUPPORT PARTIAL

PLAN AND ELEVATION – 1

e. Sheet 17 (Drawing ST-DE-14) – PIER A JACKING AND TEMPORARY SUPPORT PARTIAL

PLAN AND ELEVATION – 2

f. Sheet 18 (Drawing ST-DE-15) – PIER A JACKING AND TEMPORARY SUPPORT PARTIAL

DETAILS – 1

g. Sheet 71 (Drawing ST-DE-68) – PRESTRESSED CONCRETE BEAM REPAIR DETAILS

h. Sheet 76 (Drawing ST-DE-73) – BRIDGE SCUPPER REPAIR DETAILS – 1

i. Sheet 77 (Drawing ST-DE-74) – BRIDGE SCUPPER REPAIR DETAILS – 2

j. Sheet 78 (Drawing ST-DE-75) – BRIDGE SCUPPER REPAIR DETAILS – 3

k. Sheet 79 (Drawing ST-DE-76) – FENDER DEMOLITION

l. Sheet 80 (Drawing ST-DE-77) – FENDER REPLACEMENT DETAILS

m. Sheet 82 (Drawing RW-GN-01) – CIVIL AND MAINTENANCE OF TRAFFIC GENERAL NOTES

APPENDIX NO. 01

SUBCONTRACTOR REQUEST APPROVAL FORM

ATTACHMENT 5

NPS Form 10-114 (Rev. 01/2017) National Park Service

SPECIAL USE PERMIT

George Washington Memorial Parkway 700 George Washington Memorial Parkway McLean, Virginia, 22101 (703)-289-2500

Name Park Alpha Code Huntae Kim P.E., Program Manager NCR-GWMP Company/Organization Type of Use District Department of Transportation Construction Street Address Permit # 250 M Street, SE 5700-22-025 City Zip Code Country Washington DC 20003 USA Telephone Number Cell Phone Number 202-671-4636 202-815-7100 Fax Number 202-671-0650 Email Address Huntae.kim@dc.gov is hereby authorized to use the following described land or facilities in George Washington Memorial Parkway Reservation 404 V section V:

I-395 HOV Rochambeau Bridge, Arlington VA.

The area must be restored to its original condition at the end of the permit.

The permit begins at Noon am / pm on 10-5-2022 The permit expires at Noon am / pm on 3-4-2024

SUMMARY OF PERMITTED ACTIVITY: (see attached sheets for additional information and conditions) Bridge rehabilitation and maintenance activities including required 1,634 square foot temporary work area surrounding the I-395 bridge abutment to allow safe space to perform maintenance work on the bridge, along and above the Mount Vernon Trail.

NEPA Compliance: CATEGORICALLY EXCLUDED _XX___ EA/FONSI ___ EIS ____ PEPC # 110429

OTHER APPROVED PLANS______

Person on site responsible for adherence to the terms and conditions of the permit (include contact information)

Huntae Kim 202-815-7100 and contractor point of contact stated on last page Authorizing legislation or other authority

54 U.S.C. 100101

APPLICATION FEE

Received Amount Not Required $ 50.00

PERFORMANCE BOND

Required Amount Not Required $

LIABILITY INSURANCE

Required Amount Not Required $ 3 Million

COST RECOVERY

Required Amount Not Required $ See #11

LOCATION FEE

Required Amount Not Required $

ISSUANCE of this permit is subject to the attached conditions. The undersigned hereby accepts this permit subject to the terms, covenants, obligations, and reservations, expressed or implied herein.

Title: Date:

PERMITTEE Signature

Title: Superintendent Date:

Authorizing NPS Official

Dawit Muluneh Digitally signed by Dawit Muluneh DN: cn=Dawit Muluneh, o=DDOT, ou=IPMD, email=dawit.muluneh@dc.gov, c=US Date: 2022.11.08 08:48:58 -05'00'

Charles Cuvelier Date: 2022.11.29 08:25:26 -05'00'

JEFFREY

REINBOLD

Digitally signed by JEFFREY

REINBOLD

Date: 2023.08.25 08:07:32 -04'00'

APPENDIX NO. 26

DOEE FISHERIES AND WILDLIFE DIVISION

WAIVER OF TIME-OF-YEAR RESTRICTION

GOVERNMENT OF THE DISTRICT OF COLUMBIA

Department of Energy and Environment

1200 First Street NE, 5th Floor, Washington, DC 20002 | (202) 535-2600 | doee.dc.gov

June 21, 2023

District of Columbia Department of Transportation Attn: Mr. Huntae Kim 55 M Street SE Washington, DC 20003

RE: Department of the Army Project - NAB-2021-00158 Water Quality Certification - DC-2022-92

Dear Mr. Kim:

The Department of Energy and Environment (the Department) Fisheries and Wildlife Division has considered the DDOT request for a time-of-year waiver for the above-referenced permit, which includes work to rehabilitate the I-395 HOV Bridge (also known as the Rochambeau Memorial Bridge) over the Potomac River.

In the District, the anadromous fish migration and spawning season is generally considered to occur between March 1st and June 30th. Any activities proposed to occur in District waters during this period shall first be approved by the U.S. Army Corps of Engineers, accompanied by concurrence from commenting federal agencies. DOEE Fisheries and Wildlife Division (FWD) has reviewed these approvals in accordance with 21 DCMR § 1405 to ensure compliance with 21 DCMR §§ 1101 and 1104.

Based on a review of the information provided to the Department by the United States Army Corps of Engineers, including the May 22, 2023 authorization letter and June 16, 2023 modification to include time-of-year restriction waivers, DDOT may conduct in-river work in accordance with the above-referenced permit provided that:

a. A change in conditions does not require that the project area be closed during the identified period;

b. Pursuant to 21 DCMR § 1405, DDOT employs measures to protect migrating and spawning fish;

including limiting in-river work during the specified dates and restricting activities that generate significant underwater noise (e.g., pile driving, concrete drilling) within 200 linear feet of the Federal Navigation Channel during the designated spawning period (February 15 to June 15);

c. DDOT complies with the conditions of its water quality certification permit;

d. All conditions prescribed in this waiver are followed; and

e. All work is performed between sunrise and sunset times as determined by the United States Naval

Observatory.

Please contact me at (202) 997-9607 or rese.cloyd@dc.gov with any questions.

Sincerely, Rese Cloyd Associate Director, Fisheries and Wildlife Division Department of Energy and Environment