Addendum 1.pdf

IFB 24037, ADDENDUM #1 PAGE 1 OF 6

City of Fairfax, VA

Office of Procurement Services 10455 Armstrong Street

Fairfax, VA 22030

Date: February 8, 2024

Addendum # 1

Reference: IFB 24037

Title: Judicial Drive Trail Connection UPC 113614

Due Date/Time: February 20, 2024, at 3:00 P.M.

Due Date/Time is changed to February 20, 2024, at 3:00 P.M.

This addendum is issued to make the following changes, corrections, clarifications, and additions to the invitation for bid document. The information in this addendum modifies and changes the original invitation for bid and takes precedence over the original document.

The following are answers to questions submitted by prospective Offerors:

Q1. Is this project a rebid?

A1. Yes, bid results for a solicitation that was cancelled are not public information (Code of Virginia

§2.2-4342.C).

Q2. Is there a limit in the dollar/percentage amount that can be used in the item for mobilization?

A2. VDOT specifications will govern. Refer to R&B specifications, Section 513-Mobilization.

Q3. Is there a limit in the dollar/percentage amount that can be used in the item for maintenance of traffic?

A3. There is no stated limit for this item.

Q4. How is rock/obstruction removal going to get paid if it is encountered during excavation/drilling?

A4. Based on geotechnical information provided for informational purposes, rock excavation is not anticipated. Should changed conditions be encountered, contact requirements and VDOT R&B specifications will govern.

Q5. Provide Cut/Fill quantities for cross sections as well as a summary of earthwork.

IFB 24037, ADDENDUM #1 PAGE 2 OF 6

A5. Cut/fill quantities for cross sections are not provided. Total anticipated quantities are provided on the bid quotation sheet, no other information will be provided.

Q6. Is there any night work required in this project, if affirmative, where and for how long?

A6. Refer to Part 1, Item 5.

Q7. Will onsite staging be provided? Crane/Drilling Equipment/Trailers/Delivery Trucks, etc. must have onsite staging areas to perform their work. Provide areas and locations on plans.

A7. Refer to Part 1, Item 5.

Q8. It appears there is not enough space/area to place drilling equipment/crane/bridge delivery trucks/concrete mixers/delivery of materials for this project. Where does the City propose/suggest an area/access to place them?

A8. Refer to Part 1, Item 5.

Q9. Is an engineer’s office required for this project? If affirmative, provide specifications/item to get paid for.

A9. An Engineers / Inspector’s office is not required.

Q10. Are there any parking fees/restrictions for this project?

A10. There are no specific parking fees or restrictions; however, City ordinances shall be adhered to.

Q11. Provide Maintenance of Traffic/Overall Sequence of Construction for this project including number of days for each phase.

A11. Information related to maintenance of traffic / SOC is provided in the IFB documents, including plans. No further information will be provided.

Q12. Are as-builts required for this project? Under what item are they going to get paid?

A12. Refer to IFB Part 1, Item 82.

Q13. Provide pictures/as-builts of the existing stairs/wall and handrail to be removed as per line items

9 and 10. What type/dimensions of materials are to be removed?

A13. Bidders shall make themselves aware of site conditions as required for preparation of bids. This information will not be provided.

Q14. Are test pits required for this project? Provide item to get paid.

A14. Refer to IFB Part 1, Item 88.

IFB 24037, ADDENDUM #1 PAGE 3 OF 6

Q15. Is a CPM schedule required for this project? Provide specifications and item to get paid if needed.

A15. Refer to IFB Part 1, Item 10.

Q16. Under what item are the outlet protections shown on plan sheet 8 going to be paid?

A16. These shall be paid under item 25 – Dry Riprap Class AI.

Q17. Is an Aluminum prefabricated bridge (i.e. Gator Bridge) acceptable for this project?

A17. Proposed bridge systems / materials shall be provided consistent with the description for bis items

No. 19, as outlined in the IFB; aluminum (or other materials) structures meeting the stated requirements are not precluded.

Q18. When are the approximate anticipated Notices to Proceed for this project (Limited Notice to

Proceed, full Notice to Proceed)?

A18. Following contract award, subject to City Council approval and VDOT approval.

Q19. When is the approximate date of final completion for this project?

A19. Final completion will be set based on the contract period requirements, dependent upon actual

NTP issuance date.

Q20. Provide specifications for the VDOT concrete mixes to be used in the abutments and caissons.

A20. The contractor will be required to submit VDOT-Approved concrete mix designs for use on the project as part of the materials documentation /submission requirements. Mix designs will not be stipulated by the City during procurement.

Q21. Provide the dimension from bottom of cap to bottom of caisson for each location.

A21. Caison depth / termination information is provided in the supplied informational Geotechnical

Engineering Report / recommendations.

Q22. Is the unit ‘Acre’ for line Item 4 Clearing and Grubbing correct? A smaller unit (i.e. SY) will benefit for invoicing/payment.

A22. This is the correct unit.

Q23. Is the unit ‘AC’ for line Item 30 Topsoil Class B 2” correct? A smaller unit (i.e. SY) will benefit for invoicing/payment.

A23. This is the correct unit.

Q24. Please specifically describe what needs to be included in each separate line item for Items 19

Prefabricated Pedestrian Bridge, 37-Bridge-West Abutment and 38-Bridge East Abutment.

IFB 24037, ADDENDUM #1 PAGE 4 OF 6

A24. Refer to IFB – Description of Bid Items No. 19, No. 37, No. 38 as included.

Q25. Under what item are the drilled caissons going to get paid?

A25. Refer to IFB – Description of Bid Items No. 19, No. 37, No. 38 as included.

Q26. Provide the sanitary invert elevations at each end of the bridge.

A26. Refer to surveyed sanitary sewer information contained in plan set.

Q27. What elevation/s will the contractor/subcontractor be drilling from for each set of caissons?

A27. Refer to surveyed & plan information contained in plan set. Contractor shall be responsible for providing any equipment pad or working surface as required and included in the respective line items.

Q28. Are the bottom of caisson elevations to be 369’ for the west side and 367’ for the east side?

A28. Refer to informational Geotechnical Engineering Report – Recommendations for Foundations requirements, for bidding purposes.

Q29. What will the reveal length/top of caisson elevation be?

A29. Final design elevations, lengths dimensions and therefore reveal and other characteristics will be the responsibility of the contractor. The City cannot predict reveal length for a final, unique design for which the Contractor is responsible.

Q30. Are sleeves required for all drilled shafts? Provide material specifications/thickness..

A30. Applicable VDOT specifications will govern.

Q31. Provide plans showing the size of the work area and what kind of access the contractor/subcontractor will have to install the east side caissons? Will Presbyterian Way be closed off?

A31. Equipment mobilization, means & methods shall be the responsibility of the Contractor, as will traffic control for the same unique approach.

Q32. Is an abutment/foundation design required for this project? It appears the bid documents have a complete design.

A32. Refer to IFB Description for Bid Items No. 19, No. 37, No. 38 as included.

Q33. Are there any in-stream work/time restrictions for this project?

A33. In-stream work is not anticipated, no time of year restrictions are applicable to this project at this time.

Q34. Confirm there is no milling required for this project. Provide an item if required.

IFB 24037, ADDENDUM #1 PAGE 5 OF 6

A34. Milling is not anticipated.

Q35. Are there are no tree/shrubs plantings required for this project?

A35. Plantings are not required.

Q36. Is the city going to provide all the permits required for this project?

A36. Refer to Part 1, Item 101.

Q37. Are the existing overhead/underground utilities (if any) going to be removed/relocated or shut down during the construction of this project?

A37. Refer to the plans and IFM documents for utility information and requirements.

Q38. Is there utility work is to be performed by the General Contractor or any of its Subcontractors.

A38. Refer to plans and IFB documents – plans call for adjustment to proposed grade for existing sanitary sewer manhole lid. No other utility relocation work is called for in-plan.

Q39. Provide items/quantities for payment of Temporary Pavement Markings/Traffic Control Devices.

A39. As noted in the IFB Documents, Maintenance of Traffic is to be a lump sum item. No items/quantities will be provided beyond what is included.

Q40. What is the depth to saw cut (Line Item No. 7)?

A40. The depth will be variable - refer to plans for locations.

Q41. Please provide all VDOT Standard details to be used in this project. Also, provide VESCH STD.

3.01, STP-1 Type F.

A41. Bidders shall be familiar with the VDOT Standards, specifications, and various documents incorporated by reference in this IFB. Refer to the required documents as necessary.

Q42. What is the depth to Demo of Pavement Flexible (Line Item No. 8)?

A42. The depth will be variable – refer to plans for locations.

Q43. Provide specifications and list of Quality Control Materials Testing required for this project (Line

Item 3).

A43. VDOT Specifications & applicable Manual of Instructions will govern.

ACKNOWLEDGMENT OF RECEIPT:

IFB 24037, ADDENDUM #1 PAGE 6 OF 6

OFFEROR NAME: __________________________________________________________________

AUTHORIZED SIGNATURE: __________________________________________________________

NAME AND TITLE: __________________________________________________________________

NOTE: This Addendum is acknowledged and considered a part of the subject solicitation. A signed copy of this addendum must be included in the response. Failure to do so may result in rejection of the bid or proposal.

Patricia Innocenti, CPPO Procurement Director / Purchasing Agent