C08.6 Solicitation N4523A21Q5722 Q&A #2.pdf
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- Attached to
- Bridge Crane Procurement and Installation Federal contract opportunity
- Solicitation number
- N4523A21Q5722
About this file
This document contains questions and answers related to a solicitation for bridge crane procurement and installation at a naval facility. The solicitation seeks the removal of an existing 30-ton bridge crane and installation of a new 75-ton bridge crane. Bidders must coordinate work to minimize impacts to an existing 75-ton crane that shares the same rail. Drawings of the building and clearances are provided but contractors are responsible for ensuring all clearances meet standards. The floor loading is 250psf and lead paint disposal is included. Hot work permits may be issued for extended periods depending on work scope and site conditions. Welders must meet AWS D1.1 standards and submit qualifications. The existing power conductor bar is 700A INSUL-8 HEAVY BAR II. Contractors will be responsible for installation and removal of all cranes. No collision avoidance system is required for the new or existing cranes.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| C08.7 Solicitation N4523A21Q5722 Q&A#3.pdf | ||
| C08.6.0 10514 B431 CLEARANCE DIAGS FOR TRAV CRANES.pdf | ||
| C08.4 Solicitation N4523A21Q5722 Q&A #1.pdf | ||
| C08.0.2 Attachment 2 Badging Requirements 07-01-2021.pdf | ||
| C08.0.0 Exhibit A FAR Provision 52.204-24_SUBMIT WITH QUOTE.doc | DOC document | |
| C08.0.3 Attachment 3 Corporate Experience Data Sheet.docx | DOCX document | |
| C08.0.1 Attachment 1 SOW Bridgecrane 06-15-2021.pdf | ||
| C08.0 N4523A21Q5722 Combined Synopsis Solicitation.pdf | ||
| C08.0.4 Attachment 4 Visitor Badge Request.xlsx | XLSX spreadsheet |
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Text version
Solicitation N4523A21Q5722 Q&A #2
1. The existing 75-Ton bridge crane on the south will be not operational during the removal of the 30-ton crane and installation of the new 75-ton. Should we consider moving the 75-ton out of the area and temporarily separating the conductor bar so that the crane could stay in use? Temporary end stops could also be added to the rails for safety of course.
Answer: Yes. This will need to be carefully coordinated with the shop and should be shown on installation and removal schedule, so that we do not interfere with schedule building work. The old 75-ton crane that shares the rail with the new replacement crane will still need to be used to support work in bldg. 431.
2. Can the bridge and runway below be used to jack and shore up from, for temporary support of bridge components and pieces for removal?
Answer: No.
3. Do they have P&H drawings that provide the component weights and Dimensions for the crane to be removed?
Answer: The estimated weights are as follows:
Trolley: 10,350# North Bridge Girder: 36,400# South Bridge Girder: 25,225# Ops cab: 3,520# End Trucks: 3,140# (each)
4. Are Building drawings of Runway and support Trussing available?
Answer: Yes, see attached file named: “C08.6.0 10514 B431 CLEARANCE DIAGS FOR TRAV CRANES”. The building drawings are old and do not account for everything in the crane envelope, contractor is responsible for ensuring CMAA clearances are adhered too and field checked prior to acceptance.
5. Are building and runway drawings available that show the complete available crane envelope in the building?
Answer: Comprehensive drawings for all building modifications do not exist. Contractor is responsible for ensuring that CMAA clearances are met and field checked prior to acceptance.
6. Can we consider temporary removal of some overhead lateral bracing to gain some headroom space for mobile crane use?
Answer: With coordination, this may be achievable but is not guaranteed. Contractor is responsible for communicating what needs to be removed and provide that to PSNS & IMF for discussion. If removal is approved, contractor will be responsible for removal and reinstallation.
7. What is Floor loading PSI? If known.
Answer: Contractor shall assume 250psf for general area ground loading for the building. Anticipated loading that will exceed this shall be submitted to the government for evaluation and approval/disapproval.
8. Does all of the scrap handled by contract award include handling the lead paint disposal?
Answer: Yes.
Solicitation N4523A21Q5722 Q&A #2
9. Will the navy issue hot work permits for weeks or up to months as opposed to by the day only?
Answer: Length of permit dependent on scope of work and condition of work site.
10. Is OSHA 30 training a requirement?
Answer: Contractor will perform all work in accordance with the most current OSHA rules and regulations issued by the Department of Labor, 29 CFR 1910, 1915 and 1926 as applicable.
11. Are the Welding requirements WABO at minimum or AWS under AISC guidelines for field welding?
Answer: Welders shall be qualified per AWS D14.1 Section 9. (Submittal required)
12. Does the navy know what the existing power conductor bar model and ampacity is?
Answer: 700A INSUL-8 HEAVY BAR II
13. Does the new crane have to be installed in the same location as the 30-ton to be removed?
Answer: No, coordination with the building will be needed during removal and installation. This will need to be discussed. Please include this in the installation and removal schedule.
14. Would it be possible to use any of the existing cranes for loading or unloading trucks or positioning equipment in the building?
Answer: Refer to paragraph 1.1.2 and 1.1.6, contractor will be responsible for installation and removal of new and old cranes.
15. Does a collision avoidance systems need to be considered for the new crane or existing cranes on the runway?
Answer: No.
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