Bidders_Questions_and_Responses.pdf

4643 S. Clyde Morris Blvd., Unit 302 • Port Orange, FL 32129 • Phone: 386-304-6505 • Fax: 386-304-6506 spatel@dmces.com • www.dmces.com

December 11, 2024 Steve Juengst, Administration Manager Department of Public Works City of Holly Hill 453 LPGA Blvd.

Holly Hill, FL 32117

RE: Riverside Park Bulkhead Repair / Bid No. 22-BG-10

BIDDERS QUESTIONS & RESPONSES

1. Any geotechnical reports available?

Response: Yes, geotechnical reports can be seen in the attachment.

2. Does “Builder’s Risk Insurance” need to include the value of the existing wall? If so, what is its value?

Response: We do not feel that Builder’s Risk Insurance is required on this project as the seawall is not a Building asset or associated with the building as such. There is not a building that we are impacting or will be impacted by the work. So, our guidance is not to add this requirement or cost, but you should check with the City Attorney.

3. Are there any agency permits that have been procured/ applied for available to be reviewed by bidders?

Response: Yes, both FDEP and USACE permits are secured and attached.

4. Exhibit A Plan Sheet C-10 Construction Sequence shows the tensioning after the second pour when the helical has been casted into the cap. Was this meant to be performed after the 1st pour to keep the wall in alignment after concrete/ flowable fill placement in the sheets (referencing plan sheet C-07)?

Response: 1ST pour is intended for creating a plug allowing anchor testing and lock off. Second pour should be done after anchor testing and all anchors are locked off.

5. What is the upright spacing on the railing to be removed and replaced? This will help with the quantity of anchors required for replacement.

Response: Contractor is advised to visit the site and determine the number of railing posts that will require relocation. All posts shall be installed using stainless steel drop-in anchors and matching stainless steel bolts.

6. Is there an engineer's estimate for this project?

Response: An Engineer’s Estimate will not be provided.

BIDDERS QUESTIONS & RESPONSES

RIVERSIDE PARK BULKHEAD REPAIR 2

7. The new concrete curb/ retainer looks to intersect with the old concrete cap, will an expansion joint or concrete bonding agent be required for this area (referencing plan sheet C-05 pavers plan and bulkhead cross-section details)?

Response: No expansion joints or bonding agent are required. Only a cold joint.

8. Are there as-builts for the existing concrete panels for drop-in embedment?

Response: No as-built drawings are available.

9. The plug pour referenced 3'-0" below mudline - is this to have rebar installed and tied into the cap?

Response: No, concrete plug is unreinforced.

10. Temporary Traffic Control - will the contractor be required to keep/ build an access to the gate at the edge of project limits connecting from the west existing concrete sidewalk for pedestrians?

Response: This gate will remain closed until the project is completed.

11. What is the anticipated start date for the City of Holly Hill Riverside Park Bulkhead project?

Response: The anticipated start date will be in the first quarter of 2025.

12. For the above subject project, what is the estimated/ budget?

Response: A budget cannot be provided at this time.

13. Will there be a cost allowance to use 22' UC-95 panels rather than 20' to clear the obstruction of the existing cap during installation?

Response: This question shall be clarified with a Sketch. We do not see the need for 22 ft long panels.

14. Support works stated they normally do not utilize 1.75" Dywidag adaptor and Rod for their system - they are requesting to provide 1.25" in lieu - is this an acceptable substitution to the design by the sole sourced provider?

Response: 1.25” dia. dywidag adaptor is fine. However, shaft of the helical anchor shall be

1.75 sq. or round of equal area of the rod cross section.

15. On sheet C-06, are we to excavate down 2'0"-2'6" and remove then place 25# to 50# lime rock in place?

Response: No excavation and removal of the existing rip rap is required. We are placing additional lime rock above the existing revetment.

RIVERSIDE PARK BULKHEAD REPAIR 3

16. Will there be soil strength testing required beforehand prior to helical install?

Response: Please see the attached Geotechnical report for the soil borings. Helical anchor design was done based on data collected from the Geotechnical Report.

Please see below for the 2 types of standard test procedures which will be conducted by the Contractor (See sheet C-10 for updated notes):

1. Performance Test for one anchor. This is a long and comprehensive test procedure. It will allow us to refine anchor length based on the field test results.

2. Proof test for 2 random anchors spread apart. The proof test will be based on refined length of the anchor. It is a simplified and shortened procedure that will allow us to get a level of confidence in the performance of other anchors.

17. Is the actual wall 205’ or 200’ long? 205’ in pic, and 200’ on worksheet?

Response: We believe that the wall length is approximately 205 LF.

18. The specs call for a 9 ga wire as reinforcement at the top and bottom of the ribbon curb, but drawing C-05 calls for #3 rebar to be used, please advise which reinforcement to use.

Response: 9 ga wire can be replaced with #3 rebars. Both options are acceptable. Contractor can also utilize CMU “Laddur” joint reinforcement instead of both options discussed above.

19. The railing attachment detail on drawing C-07 shows a surface mounted handrail, the existing handrail intended for relocation is not a surface mounted handrail but rather an imbedded handrail. Since the existing cap is not intended for demolition, there is no way to remove the existing handrail without destroying it, please advise.

Response: Handrail can be cut at the top of the existing pile cap and preserved and stored for future reuse. Contractor can order ½” thick aluminum plate with predrilled holes allowing 5/8” Dia Stainless Steel bolts with matching Drop-in stainless steel anchors. Holes shall be spread 4” apart in both directions. Plates shall be welded to handrail posts with all around fillet weld having thickness matching the thickness of the post element. See sheet C-07 for detail.

20. Drawing C-08, Elevation A-A shows proposed concrete cap height is 24 inches. Other drawings show proposed concrete cap height is 36 inches. Please clarify the correct dimension.

Response: Proposed cap height is 36”. Existing cap height is 24”. The top elevation of the proposed cap matches the top elevation of the existing cap.

21. Drawing C-08 shows annular space between existing wall and proposed wall is to be filled with concrete. Please clarify which sheet piles are to be filled with concrete.

Response: Annular space is between new sheet pile and existing precast sheet pile. All annular spaces shall be filled with concrete or with 1000 psi flowable fill. Contractor’s choice.

Substitution of the concrete with 1000 psi flowable fill will be approved.

RIVERSIDE PARK BULKHEAD REPAIR 4

22. Drawing C-05 shows 4 inches of compacted soil cement under the brick pavers. Can typical paver base (coarse stone / crushed aggregate) be used instead of soil cement?

Response: No. We requested 4” soil cement for a reason.

23. What is the top elevation for the flowable fill to be placed between the existing and new wall? It appears either the bottom of existing cap or bottom of new cap.

Response: Drawing C-05 Shows flowable fill poured to the underside of the existing pile cap, while C-07 Shows flowable fill stopped at the bottom of the new pile cap. Both options are acceptable. However, from the logic of construction sequence option 2 is simpler.

24. For the helical anchors, are the materials to be plain steel or hot dip galvanized?

Response: Anchor shafts shall be hot dip galvanized and wrapped into Denso tape.

The anchor shafts shall be of mild steel having Fy between 60 and 70 ksi. No high strength rods should be allowed because hot dip galvanization process causes hydrogen embrittlement of high strength material.

25. Drawing C-10 Helical Anchors Note 4. calls for Denso tape. Denso has different tapes available. Which specific tape is to be used?

Response: Denso tape with petrolatum liner.

26. There are two light fixtures on top of the existing concrete cap. Are these to be relocated to the new cap?

Response: Light features shall be removed and replaced on the new cap. Contractor shall install plastic conduits in the new pile cap to accommodate the electrical lines for the light fixture.

27. The required list of documents includes Trench Safety Affidavit: Section 00 49 00 and Certificate as to Corporate Principal: Section 00 62 00, however neither form is included in the bid document. Can these forms please be provided?

Response: Please contact the City for these documents.

28. Please confirm if a Bid Bond is required or not required.

Response: Bid Bond is required for the project.

29. Can you let us know how the flowable fill quantity was calculated? We are coming up with a much lower quantity.

Response: Please see the revised quantity to be approximately 25 cy for the flowable fill.

30. Is a bid bond required? 1.09 states Bid Bond is not required. Section 00 30 00 - 5 shows a requirement of a bid bond.

Response: Bid Bond is required for the project.

RIVERSIDE PARK BULKHEAD REPAIR 5

31. For the Rock Revetment. Is the contractor to remove the existing debris and rock then place geotextile fabric then place existing rock with new rock?

Response: Geotek fabric is not required. New rock can be placed on top of the existing rock.

The top of the rock shall be choked by the non-uniform rock of smaller sizes.

32. Is the contractor to provide Material testing services?

Response: Yes, the contractor shall provide Material testing services.

33. Do Helical anchors need to be tested by a third party? If so, is the contractor to bear that cost?

Response: No, Contractor installing Helical anchors shall be testing them. The final length of the anchor shaft can be calibrated after testing 3 random anchors (the first anchor shall be Performance tested, and two additional anchors shall be Proof tested. The tested anchors shall be spaced not closer than 40’ apart)

34. New railing will be 2’ east on new cap. Any plan on attaching?

Response: Please see sheet C 07.

35. Do we need to repost our questions on the VendorLink site?

Response: City please advise, we don’t believe this is neccesary.

36. We would like to request for consideration to extend the bid to Friday December 20, provided all questions have been responded to.

Response: We have no objections. This question shall be addressed by the City.

37. ITB section 1.05 identifies 3 items labeled a., b., and c., to be furnished if requested. Please confirm these are not required to be submitted with the bid packet.

Response: City please advise.

38. ITB calls for 1 original and 1 electronic copy but ITB page 13 states "To Be Completed in Duplicate." Please confirm the number of originals to be provided.

Response: City please advise.

39. ITB page 17 refers to a cashier's check or Bid Bond, however page 6, section 1.09 states bid bonds will not be required. Please confirm a bid bond is not required.

Response: City please advise.

40. ITB page 33 refers to public liability and property damage policies. Please provide details on the requirements for these policies including limits.

Response: City please advise.

RIVERSIDE PARK BULKHEAD REPAIR 6

41. The scope of work does not include above-ground buildings, therefore please confirm a builder's risk policy is not required for this project, reference page 38, III. Property Insurance.

Response: The project is outside of a zone that can influence above -ground buildings.

Builder’s Risk policy is not required for this project.

42. The scope of work does not include the installation of machinery and or equipment, therefore please confirm Installation Floater is not required, reference ITB page 39, B.

Installation Floater.

Response: We do not believe Installation Floater is required. Area is open, and we do not anticipate any damage to the property if heavy machinery is kept 20 ft away from the wall.

43. Exhibit A Technical Specifications Item 1 refers to mangrove trimming and mangrove removal. Please provide details of the existing mangroves including noting the location on the construction plans.

Response: We do not believe there are any mangroves on the construction site. No mangrove Trimming or removal is required.

44. What if any existing trees within the work area are to be removed and replaced?

Response: Contractor shall remove and replace the tree at no cost to the owner.

45. Please provide details including material and measurements of the existing rail that contractor is to match under item 13, railing.

Response: Contractor shall remove existing rail by blade cutting rail posts at the top of the existing pile cap. Grind the bottom of the post, weld 5/8” x 6” x 6” base plate to the rail posts and reinstall the rail using 5/8 “stainless steel bolts with matching Drop-In anchors as shown on drawing sheet C-07.

46. Can a shop drawing of the existing railing be provided?

Response: No drawings of existing rail available. Contractors are advised to visit the site and check the number of handrail posts and size of the posts.

47. Sheet C-03 shows the existing concrete sidewalk to remain however helical anchors are shown to be installed in the same location. Some portion of the sidewalk will need to be removed and replaced in order to install helical anchors as shown. Under what bid item should the cost of sidewalk removal and replacement be included?

Response: See drawings sheet C-03 and C-04. All pavers shall be removed and installed per detail shown on sheet C-04. Sidewalk removal and replacement shall be included in the same bid.

48. What is the allowable space between the existing and proposed bulkhead walls?

RIVERSIDE PARK BULKHEAD REPAIR 7

Response: Please see drawing sheet C-05.

49. A portion of the pier, including decking, will need to be removed and replaced to allow for sheet pile installation under the pier. Please provide structural details on the decking and joist pier connection at the wall and identify under which bid item bidders should include the cost to remove and replace for bulkhead installation.

Response: Detail is shown on drawing sheet C-08. No pier removal is required.

50. Sheet C-06 shows existing vegetation to remain in the area where riprap is being augmented. Is the augment just a fill of 25#-50# stone over existing riprap area? If not, please provide detail on how the proposed riprap area is to be augmented. Augment stone?

Response: New Rip-Rap stone shall be placed on top of existing Rip-Rap. Top of augmented

Rip- Rap shall be choked with a smaller stone.

51. Construction plans refer to existing conduit to be relocated. What is the size and type of existing conduit?

Response: Contractor is advised to visit the site and determine the size and the type of conduit.

52. Please provide details of location and connection points of existing conduit.

Response: See answer above. Conduit shall be relocated to the face of the new wall with connections identical to existing details.

53. Are the helical anchors to be HDG?

Response: Yes, See drawing sheet C-10: “Helical Anchors”

54. ITB documents refer to a Geotechnical Report, but none is included in the available files.

Please provide the geotechnical report for review.

Response: Geotechnical Report will be provided on the Request.

55. Is all hardware to be HDG? If not, please specify.

Response: Only helical anchor shaft.

56. What area can the contractor use for staging?

Response: The staging area shall be allocated by the City.

57. Will the City require a building permit for this project? If so, will building permit fees be waived?

Response: The question shall be addressed to the City Building Department.

58. Given the scope of work, please confirm a general contractor's license is the required licensure for this project.

Response: Yes. GC license is required.

RIVERSIDE PARK BULKHEAD REPAIR 8

59. Will the City provide a short extension of the bid date to allow for bidder's to review and incorporate published answers to questions (including review of the referenced but not yet available geotechnical report)?

Response: The question shall be addressed to the City.

60. Drawing C-10: The Sequence of Construction states to excavate soil under pavers to the depth 2’-8” below deck surface, then haul and dispose of excavated soil. Can this soil be stockpiled and reinstalled after helical anchors have been installed?

Response: Yes.

61. Is a bid bond required for this project?

Response: Bid bond is required for this project.

62. Any certified payroll or Davis-Bacon wages for this project?

Response: The question shall be addressed to the City Building Department

63. Will any part of the parking lot or park be closed during construction?

Response: The question shall be addressed to the City Building Department

64. Are we allowed to leave machines and material stored on site in a Conex box? If so can you please outline the designated areas?

Response: Yes. City can elaborate on that answer.

65. Is there any type of special insurance this project may need i.e. Flood Insurance, Builders Risk?

Response: Neither are required for this project.

Note to Bidders:

1. Please note that sheet C 03 & 04 have been revised to include the approximate location of the FPL power line within the project site.