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Home My WebLink AboutAddendum 1 - BID - 10072 Mail Creek Ditch Pedestrian Trail & BridgeAddendum # 1 RFP 10072 Mail Creek Ditch Pedestrian Trail & Bridge Page 1 of 6 ADDENDUM NO. 1 Description of ITB 10072: Mail Creek Ditch Pedestrian Trail & Bridge ITB DUE DATE: 3:00 PM (Our Clock) November 22, 2024 To all prospective Bidders under the invitation to bid documents described above, the following changes/additions are hereby made and detailed in the following sections of this addendum: Exhibit 1- Questions and Answers Please contact Adam Hill, Senior Buyer, at 970-221-6777 or adhill@fcgov.com with any questions regarding this addendum. RECEIPT OF THIS ADDENDUM MUST BE ACKNOWLEDGED BY A WRITTEN STATEMENT ENCLOSED WITH THE ITB STATING THAT THIS ADDENDUM HAS BEEN RECEIVED. nd Floor 970.221.6775 970.221.6707 fcgov.com/purchasing Addendum # 1 RFP 10072 Mail Creek Ditch Pedestrian Trail & Bridge Page 2 of 6 Exhibit 1 – Questions and Answers 1. How tall are the removable McNichols perforated aluminum panels? Full height or just the top 5’-0”? It appears that there is a combination of horizontal safety rails and panels. Response: The panel shall be full height panels (2 x 5’) as the railroad does not allow any openings bigger then 2” x 2”. Manufacturers will have to work out how to secure the panel and handrail and still allow the panel to be removable. 2. How are the detachable aluminum panels to be attached to the bridge? Response: Manufacturer will have to design the system and submit shop drawings for approval. 3. What detail is provided for the interface of the panel with respect to the pipe handrail? Response: Manufacturer will have to design the system and submit shop drawing for approval. See responses to questions 1 & 2. 4. A custom panel that is blocked out for the attachment of the pipe handrail? Response: City prefers not to have a custom panel, see previous responses. 5. Is there a detail for the pedestrian railing pipe caps? Response: A standard threaded pipe cap as shown on Sheet #60 Railing Elevation, Contractor may propose alternate details for approval. 6. What is the roof support system? We typically provide a steel gable frame and purlin system that is ﬁeld bolted to the bridge prior to erecting the structure. Is there any details we should follow? Response: Manufacturer to design and provided shop drawings for approval. 7. What is the roof pitch, 4/12? Response: Correct, roof pitch to be 4/12. 8. Will there be more details/attachments for the Netting panels? Response: No additional details will be provided. See Project Special for attachment requirement. Contractor may propose alternate attachment for approval. 9. Is there waterprooﬁng and underlayment beneath the metal rooﬁng. I.E. Revised Section 509? Response: The rooﬁng system is to be designed by the manufacturer. Waterprooﬁng/underlayment is required and shall be applied to sheathing. Sheathing shall not be a wood product. Shop drawings for the sheet metal rooﬁng system should include sheathing details and the underlayment for review and approval. Please see attached Project Special Provisions contents (attached) to replace the current revisions. The reference of Section 515 to Section 509 Sheet Metal Rooﬁng. Addendum # 1 RFP 10072 Mail Creek Ditch Pedestrian Trail & Bridge Page 3 of 6 10. Is there a material supplier suggested for the rooﬁng? Response: No. 11. The bid documents call out for Redi-Rock or Approved equal for the proposed retaining walls. Would Recon precast modular block system be acceptable retaining wall option for this project? Response: All equivalent precast modular block system will be considered. 12. Are there additional speciﬁcations regarding the Railing Response: No additional speciﬁcation will be given. See Pipe Rail Details plan sheet. 13. Will a design update to Span 2, to include an overhead brace to the bridge truss be acceptable? To meet the ﬁnal design geometries and properties of the bridge, overhead bracing is likely required. Additionally, overhead bracing running the length of the bridge will provide an anchor point for the center of the sheet metal roof design. (See Fig. 1-Fig. 3) Fig. 1 – Cut from Sheet No. 46 of bid documents. Addendum # 1 RFP 10072 Mail Creek Ditch Pedestrian Trail & Bridge Page 4 of 6 Fig. 2 – Example of Portal Style Pratt Truss with rooﬁng assembly. Fig. 3 – Example connection between the overhead brace and sheet metal roof. Response: Rooﬁng system are manufacturer design. The geometries shown are for clear opening. The example presented is an acceptable design for connection. Addendum # 1 RFP 10072 Mail Creek Ditch Pedestrian Trail & Bridge Page 5 of 6 14. Will horizontal safety rail be required below the handrail, as depicted in the Span 2 Elevation view on Sheet No. 46? Or should the removable, aluminum panel be assumed at elevations below the hard rail? Response: No, horizontal safety rail is not required as the full height removal panel opening meets the safety opening requirement. 15. Is the intent of design to include a true, ADA compliant handrail element to the bridge or would a more traditional rub rail be preferred? The Span 2 Elevation view on Sheet No. 46 depicts a true handrail. No additional reference to handrail or rub rail specs were noted in the 628 – Bridge Girder and Deck Unit section. Response: The rail shown is meant to be rub rail, matching the top rail of the handrail. 16. Would the City consider a slight extension to the bid due date so that potential bridge suppliers may utilize all pre-bid Q&A answers once posted? Response: The bids due date has been extended until November 22, 2024 @ 3:00 PM MST. 17. Question regarding General Conditions 3.2 – This section appears to be written as if the plans and Contract Documents may not be complete and accurate. Are we bidding the plans and Contract Documents, or are items missing? Are bidders expected to include a contingency for missing items? Response: To the best of our knowledge the Contract Documents are complete and the bid should be per the Contract Documents. However, General Conditions 3.2 is intended to address incidental items needed to complete the work such as concrete form work materials, equipment, etc. 18. Question regarding General Conditions 6.4.1 – Can the City clarify expected areas of cost increases related to its purchasing restrictions? Response: The City does not anticipate any cost increases related to the purchasing restriction, provided the items bid for concrete are in compliance with the purchasing restriction resolution 91-121. 19. Question regarding General Conditions 6.4.2 – Can the City clarify expected areas of cost increases related to its cement restrictions? Response: The City does not anticipate any cost increases related to the purchasing restriction, provided the items bid for concrete are in compliance with the purchasing restriction resolution 91-121. 20. Question regarding General Conditions 6.8. Since the City can reject one or more of the successful bidder’s subcontractors without paying the additional cost to supplement with the next best subcontractor, does the City have a list of subcontractors it will reject? Response: The City does not have a list of subcontractors that will be rejected but through our bid review process and reference checks if a ﬁrm is identiﬁed as being unﬁt to complete the work the City will discuss replacement with the selected Contractor. Addendum # 1 RFP 10072 Mail Creek Ditch Pedestrian Trail & Bridge Page 6 of 6 21. 13.14 – Does the City really intend to be able to take a civil contractor’s tools and heavy machinery? Response: The City does not intend to take Contractor’s tools and heavy machinery however the General Conditions does provide the right to do so. 22. 15.2.4 - Does the City really intend to be able to take a civil contractor’s tools and heavy machinery? Response: The City does not intend to take Contractor’s tools and heavy machinery however the General Conditions does provide the right to do so. Mail Creek Ditch Pedestrian Trail and Bridge September 20, 2024 Fort Collins Project No. 10072 CDOT Subaccount No. 23946 1 CITY OF FORT COLLINS PUBLIC WORKS DEPARTMENT – DIVISION OF TRANSPORTATION PROJECT SPECIAL PROVISIONS MAIL CREEK DITCH PEDESTRIAN TRAIL AND BRIDGE The 2023 Standard Specifications for Road and Bridge Construction controls construction of this project. The following special provisions supplement or modify the Standard Specifications and take precedence over the Standard Specifications and plans. Other technical standards and specifications that support this work are as follows in the order of importance: Larimer County Urban Area Street Standards (LCUASS); Fort Collins Stormwater Standards, and the latest revision of the "Manual on Uniform Traffic Control Devices for Streets and Highways" (MUTCD). These documents are not included in the contract documents. It shall be the Contractors responsibility to purchase and familiarize themselves with all the standard specifications. PROJECT SPECIAL PROVISIONS Description Date Pages Nos. Project Special Provisions Index Standard Special Provisions Index Notice to Bidders Commencement and Completion of Work Disadvantaged Business Enterprise (DBE) Contract Goal On the Job Training Contract Goal Revision of Section 100 – General Provisions Revision of Section 101 – Definition and Terms Revision of Section 102 – Project Plans and Other Data Revision of Section 107 – Permits, Licenses, Protection of Existing Property and Insurance Revision of Section 107 – Performance of Safety Critical Work Revision of Section 107 – Stormwater Construction Permit Revision of Section 108 – Prosecution and Progress Revision of Section 109 – Measurement and Payment Revision of Section 201 – Clearing and Grubbing Revision of Section 202 – Removal and Trimming of Trees Revision of Section 202 – Removal of Structures and Obstructions Revision of Section 206 – Structural Backfill (Class 1) Revision of Section 209 – Watering and Dust Palliatives Revision of Section 210 – Relocate Irrigation System Revision of Section 240 – Protection of Migratory Birds Biological Work Performed by the Contractor’s Biologist Revision of Section 240 – Netting Revision of Section 250 – Environmental Health and Safety Management Revision of Section 504 – Precast Modular Block MSE Retaining Walls Revision of Section 509 – Sheet Metal Roofing September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 September 20, 2024 1-2 2 3 4 5 6 7 8 9 10-11 12-14 15 16-20 21 22 23-24 25 26-27 28 29 30-32 33 34 35-57 58-70