2992 - Addendum No. 3.pdf

COMMONWEALTH OF VIRGINIA

County of Henrico

8600 Staples Mill Road / P.O. Box 90775 / Henrico, VA 23273-0775

Phone: (804)501-5660 / Fax: (804)501-5693

Addendum No. 3

Date: September 18, 2026

Invitation to Bid: ITB No. 26-2992-8EAR – Tuckahoe Library Stream Restoration

Receipt Date/Time: September 29, 2026, at 3:00 PM

Opening Date/Time: September 29, 2026, at 3:00 PM

Subject: Questions & Answers, Revised Unit Price Bid Sheet, Revised Plan

Drawings, Revised Technical Specifications

Prospective Bidder and Others Concerned, The following changes, corrections, deletions, clarifications, and/or additions constitute Addendum

No. 3:

Design Plan Drawings, Technical Specifications, and the Unit Price Bid Sheet shall be removed in entirety. All revised Design Plan Drawings, Technical Specifications can be found in the

Documents section of Procureware. Supplementary AutoCAD files have also been included.

Design Plan Drawings Revision:

1. Cover Sheet – Revision block updated to reflect Sheet revisions.

2. Sheet 3.00 – Structural Practices notes updated.

3. Sheet 3.01 – Safety Fence detail added.

4. Sheet 3.02 – Safety Fence detail removed.

5. Sheet 3.06 – Safety Fence and Timber Mat locations updated.

6. Sheet 3.07 – Safety Fence and Timber Mat locations updated.

7. Sheet 4.00 – Pre-Construction Preparation & Notification note 1.4 updated.

8. Sheet 5.00 – Plan view riprap and substrate mix updated.

9. Sheet 6.00 – Maintenance note 12.1 and Live Stake Material note 3 updated.

10. Sheet 7.02 – Safety Fence updated.

Project Manual Revisions: Technical Specifications

1. Section 01.01 – Summary of Work

a. Removed Rock/Log Vane reference from the specification.

2. Section 01.11 – Construction Surveying

a. Removed language.

3. Section 02.02 – Erosion and Sediment Control

a. Updated to match design plan revisions.

4. Section 03.01 – Planting

DEPARTMENT OF FINANCE

Purchasing Division

a. Removed reference to root growth hormones and watering requirements from specification.

Unit Price Bid Sheet Revision:

1. Item name and quantity revision in line #8 Plastic Safety Fence.

2. Language and quantity revision in line #9 Metal Safety Fence.

3. Language revision in line #16 Remove Existing Curb and Gutter.

4. Language revision in line 18 Earthwork.

5. Addition of line-item #19 Topsoil.

6. Quantity revision in line # 20 Substrate Mix.

7. Quantity revision in line # 22 Clay Plug.

8. Unit revision in line # 32 Upland Forest Planting.

9. Unit revision in line #34 Riparian Forest Planting.

Questions and Answers:

1. Question: Is there a Disadvantage Business Enterprises (DBE) goal established for this project?

Answer: No, there is no DBE goal established for this project.

2. Question: We request that CAD files be posted to Procureware for use by contractors.

Answer: AutoCAD files containing the Survey, Erosion & Sediment Control Plan, Stream

Grading Plan & Profile, and Sewer Replacement Plan & Profile will be provided with this addendum. Note that any CAD or model files provided by the engineer are recommended as a reference only. Cross section dimensions, grading, profile elevations, etc. must be constructed per the final approved design plans.

3. Question: Are there prevailing wage requirements on this project?

Answer: No, there are no wage requirements for this project.

4. Question: Bid Items 5-7: Temp Stream Crossing, Temp Utility Crossing, and Timber Mats:

Is Bid Item 7 a contingent bid item for timber mat requirements that emerge above and beyond those mats that are included in Bid Items 5 & 6? Or is Bid Item 7 intended to be used to pay for the timber mat material, while Bid Items 5 & 6 are intended to be used to pay for installation and removal of the mats?

Answer: Bid items 5-7 are individual items, Sheet 3.06 and 3.07 have been updated for clarity.

5. Question: Bid Item 8 – Barricade Tape: Please provide a detail for the barricade tape. Also, the location of barrier is not indicated on plan view. Is this barricade tape intended to delineate the LOD? If so, that seems redundant considering a barbed wire safety fence is already achieving that function.

Answer: Barricade tape has been removed, and safety fence placement has been clarified on

Sheets 3.06 and 3.07. Bid item 8 and 9 have been updated accordingly.

6. Question: Bid Item 9 – Safety Fence: Please confirm that safety fence is to be built per

Sheet 3.02 - Detail 503.04. If so, considering the temporary nature of this fence, will posts still require being set in concrete footings?

Answer: Metal safety fence should be installed per Virginia Stormwater Management

Handbook Version 1.2, Chapter 7, Section 7.4, C-PCM-01 Safety Fence. Detail has been added to Sheet 3.01. Metal safety fence around the laydown area does not need to be set in concrete, alternative anchoring methods are acceptable.

7. Question: Bid Item 18 – Earthwork: This bid item is listed as a lump sum; however, Section

2.03 Earthwork-10 - Measurement and Payment Terms states, “Excavation will be measured and paid for at the Contract unit price per yard (CY)”. Considering these payment terms, can Bid Item 18 be split into the following separate CY bid items: a. Cut to fill b.

Cut to export c. Strip & Replace topsoil

Answer: The earthwork specification has been updated to lump sum to match the unit bid sheet. Cubic yards of cut and fill have been included line item #18 for reference. An additional line item for topsoil has been created, see bid item #19.

8. Question: Bid Item 19 – Streambed Substrate Imported:

a. Plan view dimensions for rifles conflict with sections and profiles. Please confirm whether streambed substrate quantities are to be calculated using profiles and sections, or by using plan view.

b. Standard riffle section on Sheet 4.04 indicates an approximately 4’ width for riffles which conflicts with riffle sections on Sheet 4.02 that indicate an approximately 9’ width for riffles.

Please clarify.

Answer: Plan view, profile, and typical sections should all be referenced for substrate quantities. Plan view has been updated to match profile stations. Riffle substrate widths shown on Sheet 4.04 typical sections are correct. Details on Sheet 4.02 are not to scale.

9. Question: Bid Item 24 - Rock Sill: This bid item has a quantity of 15; however, the actual quantity indicated on the plans is 13. Please clarify.

Answer: There are 13 rock sills total for the Main Reach. The additional 2 rock sills are located at tributary tie-in locations in combination with main reach rock sills. Additional structure information can be found in the Structure Table for each reach on Sheet 4.04.

10. Question: Bid Items 31, 33: Units for these bid items are listed as acres; however, Section

3.01 Planting-1 - Measurement and Payment Terms states, "payment for….tubelings…shall be made separately on a per each basis”. Considering these terms, can these bid item units be revised to “EA” in lieu of “AC.”.

Answer: The planting bid item has been updated to each (EA.) to match the specifications.

11. Question: Section 3.01 Planting-1 - Execution states, "Contractor shall water the plants for a period of 90 days after final plant installation”. Please clarify the watering schedule as well as the volume of water required per plant size per watering event.

Answer: Note regarding 90-day watering period has been removed from specifications.

12. Question: Tributary North and Tributary South both have a rip rap apron consisting of Class

III rip rap where the pipes daylight. Which bid item should this Class III rip rap be priced into?

Answer: Existing riprap is noted on Sheet 2.00 to be removed, stored, and reused on-site and should be considered incidental for this project.

13. Question: Was there a geotechnical report completed for this design? If so, can that report be posted to Procureware?

Answer: No geotechnical reports have been completed for this project.

14. Question: Approximately when is NTP expected to be issued for this project?

Answer: Anticipated NTP for this project is December 2026.

15. Question: Bid Items 16 & 25 appear to be both be covering the same scope item.

Answer: Bid item 16 has been updated to only include the removal of 30LF of existing curb and gutter. Bid item 26 will only include the replacement of 30LF of curb and gutter.

16. Question: The contractor qualification requirements reference experience with rock/log vane testing; however, there do not appear to be corresponding pay items for this work. Please clarify whether this work is included in the project scope and, if so, under which pay item it should be compensated.

Answer: There is no rock/log vane work associated with this project. Reference to these structures has been removed from the specifications.

17. Question: Item 48 references both Specifications 02732 and 02733. Please clarify which

CIPP installation method is required. Alternatively, may the Contractor select either method, provided all specified requirements are met?

Answer: The Contractor can select either CIPP installation method in accordance with

Section 02732 and Section 02733 of the Project Manual.

18. Question: If excavated material is unsuitable and select fill must be imported, will it be change order or contractor risk?

Answer: Importing select fill as a result of unsuitable excavated material will be contractor risk.

19. Question: Are geotechnical borings or soil logs available?

Answer: No geotechnical reports have been completed for this project.

20. Question: Item 3 - is all cleared and grubbed material to remain on site for structure use or mulch, with no off-site disposal?

Answer: Materials from clearing and grubbing activities will be utilized in structure construction. Materials meeting the structure requirements or being utilized for temporary stabilization should remain on-site, all others should be removed at the Contractors expense.

21. Question: What are the average and peak sewer flows for bypass pump sizing?

Answer: See Specification Section 01501, 1.2, F.

22. Question: Are standby pumps or a 24-hour attendant required?

Answer: See Specification Section 01501, 1.2, E, and 3.1, I.

23. Question: Will a staging or stockpile area be provided?

Answer: Staging and stockpile areas can been found on Sheets 3.06 and 3.07, denoted as

‘Laydown Area’ and ‘Temporary Stockpile and Storage Area’.

24. Question: There are two pay items for 30 L.F of curb and gutter replacement. Please confirm if these are duplicates or if there is 60 L.F. to be removed and replaced.

Answer: Bid item 16 has been updated to only include the removal of 30LF of existing curb and gutter. Bid item 26 will only include the replacement of 30LF of curb and gutter.

25. Question: The intent for the Earthwork pay item is for re-use of all onsite excavated soil to be used as fill. Does the existing soil fit the requirement for fill on site? If not, provide a pay item for import of soil.

Answer: See response to question #18.

26. Question: Please delineate where chain link fence is to be installed.

Answer: Metal safety fence should be utilized around the laydown area. The remainder of the safety fence for the project will be plastic fencing. Refer to Sheets 3.06 and 3.07 for safety fence locations.

27. Question: Please provide details for the safety fence.

Answer: Safety fence detail has been updated on Sheet 3.01.

28. Question: The Project Manual specifies that demobilization is included in the Mobilization pay item, but there is a separate Demobilization pay item. Please specify where the cost of demobilization should be included.

Answer: Demobilization mentioned in Specification 01.09 can be included in the demobilization line item and should not need to be included with the mobilization line item.

29. Question: The Earthwork pay item unit is Lump Sum but section 2.03 outlines excavation will be paid per cubic yard. Please specify how excavation will be paid and provide a pay item if it's to be paid per cubic yard.

Answer: See response to question #7.

30. Question: Please provide pay items for all fencing to be installed.

Answer: See response to question #5.

31. Question: Please clarify location for Silt Fence Drop Inlet and provide a pay item.

Answer: No silt fence drop inlets are required for this project.

32. Question: There is a significant quantity of invasive species on site without any intended NNI treatment. If NNI is required, please provide a line item

Answer: NNI treatment is not required for this project.

33. Question: There is a significant quantity of invasive species on site without a pay item for imported topsoil. Please provide pay item for imported topsoil.

Answer: An additional line item for topsoil has been included, see bid item #19.

34. Question: Please provide a pay item for removal of concrete apron and rip rap unsuitable for re-use.

Answer: Existing riprap is noted on Sheet 2.00 to be removed, stored, and reused on-site and should be considered incidental for this project. Removal of existing concrete apron should be considered incidental as well.

35. Question: Not all on site rip rap is suitable for re-use. Tributary plunge pools call for salvaged rip rap. Please advise if the quantity for Class 2 rip rap should be increased.

Answer: The Class II riprap line item is solely for the main reach plunge pool and will not be utilized for the tributary plunge pools. A change order may be deemed necessary if the on-site materials are not suitable.

36. Question: Given the quantity of questions, is it possible to extend the due date by a week to allow for incorporation of answers and coordination with subs and vendors into bid?

Answer: Yes, an additional week has been provided.

37. Question: What protection is required for the lay down area?

Answer: Metal safety fence shall be utilized around the perimeter of the laydown area. ESC measures are not anticipated for the laydown area, however it will be the discretion of the

Henrico County ESC inspector throughout construction if additional measures are necessary.

Erodible materials should be stored within the temporary stockpile and storage area, surrounded by compost filter socks or silt fence.

38. Question: Please provide a pay item for Select Tree Removal.

Answer: Reference to Select Tree Removal has been removed from the specifications, as it is not required for this project.

39. Question: Please provide pay item and detail for Tree Protection.

Answer: Reference to Select Tree Removal has been removed from the specifications, as it is not required for this project.

40. Question: Please provide details for barricade tape installation including material installed and where to install it.

Answer: See response to question #5.

41. Question: Please provide clarification to how select tree removal will be identified and paid.

Answer: See response to question # 38.

42. Question: Please clarify soil types and requirements for around pipes, endwalls, and manholes.

Answer: Refer to Material Notes (Sanitary Sewer Line) Note 3 on Sheet 7.01 for sewer replacement requirements. Refer to Section 04.01 – Storm Pipes and Structures of the specifications for the storm sewer requirements.

43. Question: Please provide details for installation of and pay item for lay down area.

Answer: Metal safety fence shall be utilized around the perimeter of the laydown area, which has been included in the metal safety fence line item. Additional pollution prevention and storage activities should be included as part of the mobilization costs.

44. Question: Section 01.11 Construction Surveying - 1.01-I: Please clarify the qualification requirements for personnel preparing the required weekly as-built surveys and red-line updates. Are there any licensing, certification, or professional registration requirements for the individual or firm performing this work, and are any survey deliverables required to be signed, certified, or sealed?

Answer: Language regarding redlines and AutoCAD drawings has been removed from the specifications. Elevations can be taken with on-site equipment and contractor personnel. The contractor should be able to provide elevations for County staff and the Engineer to check for inconsistencies throughout construction as necessary. As-built survey must be performed by a licensed surveyor.

45. Question: Survey Layout: Will the Engineer permit the use of a contractor-developed grading model for machine control such that survey layout is limited to LOD delineation and benchmark verification.

Answer: The Engineer takes no exception to the use of contractor-developed grading models.

Note that any CAD or model files provided by the engineer are recommended as a reference only. Cross section dimensions, grading, profile elevations, etc. must be constructed per the final approved design plans.

46. Question: Erosion & Sediment Control plans both show a "pollution prevention area" inside the parking lot laydown area. Can a detail or narrative be provided that explains what this entails?

Answer: Additional information for the pollution prevention area can be found on Sheet 3.05.

This area is intended to contain potentially hazardous materials as part of the prepared

SWPPP.

47. Question: Our calculations provide a higher quantity for the Clay Plug pay item. Please verify quantity and construction details.

Answer: Clay plug quantity has been updated, see bid item #22.

48. Question: Sheet 6.00, Section 11. Warranty, states that the warranty covers "defects including death and unsatisfactory growth". Please define "unsatisfactory growth" and specify benchmarks for the different plant types and sizes to achieve final acceptance.

Answer: Unsatisfactory growth can be defined as approximately 75% or more of the plant appears to be dead, or if the main stem is completed dead. This applies to all herbaceous plugs, livestakes, and tubelings. Plants will be inspected upon installation for quantity and health.

Once complete, the project will reach final close-out and plants will then be inspected at the one year warranty mark. Survival rates for the warranty inspection can be found on Sheet

6.00, Note 11.

49. Question: Sheet 6.00, Section 12. Maintenance states that the Owner is responsible for maintaining all plant material throughout the warranty period. If this is correct, is the

Contractor expected to warranty plants they do not maintain? If not, please specify the

Contractor's maintenance responsibilities.

Answer: Maintenance note 12.1 has been updated on Sheet 6.00.

50. Question: Please specify the rooting hormone that is to be applied to all live stakes prior to installation.

Answer: Reference to rooting hormone application has been removed from Sheet 6.00 and

Planting specification.

51. Question: A 90-day watering period is prescribed during the establishment phase of all plantings. Please specify the number of days watering will be required, or define the parameters in which watering will be necessary, i.e. when less than 1" of rainfall occurs over the span of 10 days.

Answer: See response to question #11.

52. Question: How will meadow establishment be evaluated and what benchmarks will the

Contractor need to meet for final acceptance?

Answer: Refer to Sections 03.03 and 3.04, Part 3.09 and Part 4.01 of the specifications.

53. Question: Sheet 6.02, Planting Schedule Notes, #2 states that quantities are based on estimated areas of planting and shall be verified by the Planting Contractor prior to bidding.

Please clarify the exact planting quantities bidders should use to calculate their price per acre for line items 30-33. Does the County anticipate the planting acreage to change, and if so, to what degree?

Answer: The total quantities for each zone have been included in the planting schedule, and the acreages are not intended to change. Note #2 has been included to account for the variance of 6-10’ O.C. spacing of each plant and noted plant density per acre.

54. Question: Please confirm whether or not tree tags need to be attached to each tubeling and live stake installed.

Answer: Tags do not need to be attached to each tubeling or livestake. A purchase ticket or container labels will be required to ensure species and quantities at time of install.

55. Question: The planting windows exclude installation between November 15 - March 15. Live stakes are typically not available until November and installed prior to bud break in early

March. Please clarify when live stakes are to be installed.

Answer: Refer to planting windows and guidelines provided on Sheet 6.00.

All other general terms, conditions and specifications shall remain the same.

Bidders must take due notice and be governed accordingly. Acknowledgement of the receipt of this addendum shall be made on your Bid Form.

Failure to acknowledge this addendum may result in your bid being declared non-responsive.

Sincerely, Eric Rosen, VCO

Procurement Analyst III

Finance Department - Purchasing Manager ros074@henrico.gov mailto:ros074@henrico.gov