Amendment 3 Questions and Answers.xlsx
XLSX spreadsheet 28 KB Posted
- Solicitation number
- NFU2-7623
- Issued by
-
Department of Energy
About this file
This solicitation package seeks proposals for construction services for the National Energy Research Scientific Computing Center Facility Upgrade II project. Key requirements include upgrading electrical infrastructure and adding cooling capacity. Offerors must attend a mandatory pre-proposal conference on February 21, 2024 and site visit. Proposals are due on March 27, 2024. The selected contractor will be required to have a full-time site safety manager with 10 years experience. Electrical contractors must have QEW certification. The project involves modifying existing electrical equipment from ABB/GE which must be sourced through that manufacturer.
View the file
Other files
Show all 28
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
Sheet1
| NFU2-7623 Amendment 3 Questions and Answers | ||
| Question Number | Question | Answer |
| 3 | EL108 Keyed Note 1 references Type W1 fixtures however Type W1 fixtures are not indicated on 1/EL108. Please clarify note. | W1 in the note was updated to W3 shown on the schedule and on the drawing. |
| 4 | EP101 indicates that some parts of the Mechanical level are to be considered exterior application. Does this apply to the entire level outside of electrical room? If not please identify the limits of areas to be considered interior. | For simplicity, assume the whole Mechanical level is considered exterior since West wall is open and rain/moisture/humidity can get in. |
| 5 | EP701-F Keyed Note 2 and EP702-F Keyed Note 1 indicates that feeder to SW-A8 should be Type CLX MV-105 3-conductor cable. EP102E-F indicates 6” conduits for feeders to SW-A8. Type CLX cable can be embedded in concrete. Please confirm conduit is required. | Yes, conduit is required. Some of the route will be underground and some above ground. |
| 6 | EP611 states that contractor is to provide integrator for EPO. Please provide information regarding the current integrator/manufacturer for the existing EPO system | The new EPO control cabinet was manufactured by "Fike." They are located in the tri-valley area (Dublin-Pleasanton-Livermore). |
| 7 | EP108A-F indicates (2) new manholes are to be provided under this scope. Please provide size and specifications for manholes | Will provide standard/typical manhole specifications, see attachment for information. |
| 8 | EP704 – Keyed Note 2 & 3 indicate new conductors refeed of PDU-6 & PDU-14. Is installation of a JB and extending existing feeder acceptable? If not, please provide location of PDU’s for new conductors (Similar for EP705-Keyed Note 7, 8, 9 & 10) | Utilize new conductors from panel to PDUs. Please see the PDF layout showing the locations of the PDUs that are being re-fed. |
| 9 | Statement of Work: NERSC FACILITY UPGRADE II (NFU2) CONSTRUCTION dated 2/6/2024 - 3.0 Task Descriptions states that specific work will be identified as Phase 1 and will have an early finish date. After initial review of the bid documents, I was unable to locate reference to Phase 1 work on the project drawings. Please identify what (if any) electrical scope is required to be part of Phase 1 | For practical purposes consider the Early Completion Scope as the Phase 1 work mentioned in the Statement of Work. Due to a timing misalignment between the Statement of Work, and development of the HPC system delivery model, the terminology changed. Please use "Early Completion Scope" in lieu of Phase 1 terminology. |
The drawing cover sheet notes "Early Completion Scope." This work is referenced on the following sheets:
GI003 Sequence ED-102S Electrical Demo ED-102S EP603 Panel Schedules EP705 SLD Keyed Note 12
| 10 | The project includes modification to existing electrical equipment. Manufacturer and part numbers are not provided for the equipment. Can an additional walk-through be scheduled for electrical contractors as well as manufacturers reps to examine the existing electrical equipment. | Walkthroughs of the existing switchgear or vault are not allowed until award. Photos are provided for reference. The proposal can include allowances relating to modifications to existing equipment. |
| 11 | Upgrades to the existing electrical equipment may require shut downs. Please confirm that shut downs may be scheduled during normal working hours. If not please provide shut down window. Also please confirm that temporary power provisions are not required during shut downs. | Scheduling outages that impact HPC systems (cooling water system down) should be planned to occur over weekends as much as is practicial would be preferred. This minimizes impacts to the 5/40 schedule most NERSC staff follow. HPC systems will be powered down when the coooling plant (pumps, towers) is powered down. |
Conventional (air-cooled) computing systems will remain operational through use a rented standby generator and AHU-11 and AHU-12 that NERSC will manage. Other LBNL groups affected by outages will similarly develop and manage their own plans to ride through outages. That typically handles the majority of systems through outages.
The general contractor is responsible for providing temporary exterior lighting around the building for their teams and the impacted areas where Lab personnel can still access during the outage. Interior lighting of the office levels (3rd and 4th floors) during the outage is NOT the responsibility of the General Contractor. At the data center level (2nd floor), the General Contractor would be responsible for lighting their own work areas.
Outages NOT requiring the HPC systems to power down may be possible during the regular work week.
| 12 | The listed gear manufacturers have expressed concerns regarding the Buy America Act. The components in switchgear can be highly specialized and may not be readily available to support the budget and lead times for this project. Please confirm that proposals based upon utilization of foreign components will be duly considered. | Known exceptions to the Buy American Act would be processed with award. The item(s) would need to be listed on the Reps and Certs form submitted with the proposal. Buy American Act exceptions will be considered in accordance with FAR 52.225-9. |
| 13 | Please confirm landscaping is not included in this bid package | Landscaping is not included in this project. Protection of disturbed soil areas from erosion will be by hydroseeding. Please see specification section 329219.16. |
| 14 | Will there be a 3rd party waterproofing consultant on this project? | Yes - Gensler will hold a waterproofing consultant for Construction Administration Services for site visit review. |
| 15 | Soldier pile schedule is not included for soldier piles running E-W direction at GL N.9/N.91 (14ea) (SB107-A) |
Soldier pile schedule is not included for soldier piles running E-W direction at GL N.6 (14 ea) (SB107D-A)
| Please confirm in Option E, there are not soldier piles in E-W Direction at GL N.1. | Soldier pile embedment depth(s) are noted on the plan (16' into bedrock). See also response to question 88. For option E, correct, no wall along grid line N.1. See midslope wall profiles on CG107 and CG107D for more information. | |
| 16 | Please confirm midslope concrete wall & soldier pile scope at GL N.9 (1/SB307) is not required if either options D or E are selected. | |
| Please confirm Option D Midslope concrete wall & soldier pile work at GL N.6 is not required if option E is selected. | Soldier pile wall at GL N.9 only applies to the base scope, and is not required if option(s) D or E are selected. |
Wall at GL N.6 only required for Option D, and is not required if Base scope or Option E is selected.
| 17 | 096623.13 - Polyurethane Modified Concrete Resinous Flooring specification is not included in the specs. Please provide | The flooring for the elec. room should be 096723 Fluid Applied Flooring. The specification was provided, however the Table of contents is incorrectly labeled. Please disregard Spec 096623.13 | |
| 18 | a) Model Specification: Tthe drawing specify the overall model of the Thern Davit Crane, but do not specify the specific series within that model number. We understand that Thern offers six different series under this model number. Please clarify the exact series intended for this project. Please provide detailed information regarding the series options available and confirm which series is applicable to the provided drawing. | ||
| b) The provided drawing lacks specification regarding the required wire dimension for the Thern Davit Crane. The drawing specifies a drop of 11ft from the top of the crane to the base with an additional 27ft drop below the base but also states a 98ft max drop. Please confirm the overall drop distance required for this crane. | The Davit Crane Model: (a) Thern Captain 2500 5FT25X-M2X with (b) WS31-45DS Wire Rope Assembly. | ||
| 19 | EL107 Key Note 2 states Type W1 fixtures should be mounted on posts. Please provide post type and height | Will provide post details. | |
| 20 | EL108 Key Note 1 references W1 fixtures, but W1 fixtures are not indicated on 1/EL108. Please clarify note | Note should say W3. | |
| 21 | EP703 Key Note 3 requires coordination with Vendor to add Kirk-Key. Please provide vendor and/or manufacturer of existing substation | General Electric manufactured the substations. | |
| 22 | Various key notes (EP704 & EP705) list modification to existing switchgear. Please provide vendor and/or manufacturer of existing equipment. | General Electric manufactured the substations. | |
| 23 | EP707 Key Note 1 requires coordination with Vendor for new bus duct tee. Please proivde vendor and/or manufacturer of existing bus duct. | General Electric manufactured the substations. | |
| 24 | EP707 Key Note 1 indicates that LBNL may require temporary power during the project. Please indicate what the temporary power requirements are. | See response to Question #9. | |
| 25 | EP708: should provisions for Options D & E (150 amp spare breaker and empty conduits) be included? | Yes, spare breakers and conduits to be included. | |
| 26 | Spec section 260500-3.3 references LBNL Construction Details and Design Guidelines (CDDG), Vol. 3 Construction Details, Part VI for Electrical Details. Please provide this document for review. | LBNL Construction Details and Design Guidelines (CDDG) is web based. The direct link to Electrical Details is here: https://pim.lbl.gov/resource/documents/implementing-documents/standards/construction-details-and-design-guidelines/volume-3-construction-details/part-6-electrical-standard-details/ | |
| 27 | Spec Section 260533-3.1 indicates that exposed outdoor conduits should be RSG (assumed to be RSC) or IMC with University approval. Please confirm if IMC is accepted for use on this project and if so where it has been approved for use. | Use RSC per Section 2.1. The references to "RSG" in Section 3.1 should be to "RSC". | |
| 28 | Sheet note 1 on CD107 calls for removal of Tree No. 1, a large eucalyptus on the North slope. During the job walk, it was discussed that this tree would be cleared by the Owner, directly. | ||
| Please confirm large eucalyptus tree will be removed by University LBNL, and will not be included in the contract. | The University is considering removal of trees per contract documents prior to the official start of construction. Until further notified, this scope is included. | ||
| 29 | Amendment 1 Added Specification sections 028200 Asbestos Abatement and 028300 Lead Abatement to the table of contents, however these specification sections are not provided in the updated specifications manual. Please provide these sections, or advise if abatement activities will be performed separately from this contract | Sections 028200 and 028300 to be included. | |
| 30 | Please advise if the structural steel for the pad grating platform will be painted or left galvanized | ||
| Please advise if the decorative screen around the steel platform will be painted or left galvanized | Decorative screen to be prefinished by louver manufacturer. Vertical steel at fin supports to be galvanzied and painted to match color of the fins . All exposed steel to be ASTM A123 Grade 90 minimum. Note that this requirement overrides the IFB specifications | ||
| 31 | 3/4" Ductile iron pipe is not a manufactured product. Please confirm the materials listed in specification (Sch40 PVC and copper pipe) are acceptable. | Sch 40 PVC or copper pipe is acceptable. Ensure daylighted piping is copper and not PVC. | |
| 32 | Please confirm the size of the new electrical manhole vault. Dimensions are not listed in the drawings. | See attachments for manhole design, or equal. | |
| 33 | Please clarify that the Commissioning scope being bid is either for the role of CxP (Commissioning Provider)/CxA (Commissioning Agent) or CxC (Commissioning Coordinator). If CxP/CxA has already been retained by LBNL please confirm and identify who that agent is. | CxP is Taylor Engineers with Stantec/ESD Global under university subcontract. |
CxC to be provided by GC.
| 34 | Please clarify the last completed phase of the project from section 019113A-1.1-A.2 (Pre-Design or Design), and confirm that any commissioning support related to previously completed phases are not part of this bid scope | There is no scope of work for the General Contractor team related to Pre-Design and/or Design phases of the project for commissioning. |
| 35 | Specifications 220800 "Commissioning for Plumbing" and 255000 "Integrated Automation" are referenced in 019113, but not included in the project manual. |
The Specifications include a section 255000 with a different title "Facilities Monitoring and Control System.
a) Please provide specification section 220800
b) Please confirm the specification 255000 that has been provided is the correct reference to other specifications that reference 255000 "Integrated Automation" 255000 - will correct title to match on ToC "Facilities Monitoring and Control Systems" No changes to content.
220800 - no longer required and will remove from manual
| 36 | The Owners Project Requirements (OPR) and Basis of Design (BOD) are referenced in the Commissioning Plan specification (019113A-1.1A.2) but are not provided. Please provide these documents if available. | Will provide BOD and OPR. |
| 37 | The Commissioning Workflow document presented in Specification Section 019113A-3.7/1.1 is illegible. Please provide native file copy as exhibit, or a more legible version. | An update to the Commissioing Workflow docuement will be provided under separate cover. |
| 38 | Commissioning Requirement specification 019113 includes scope for a 10 month Warranty Period review, however Div 019113A does not. Please confirm if scope should include 10-month warranty review. | Confirmed, 10 month warranty period shall be included in the scope. |
| 39 | Please confirm Manufacturer of existing switchgear MVSG (SW-A7) as shown on sheet EP701 | GE was the manufacturer of the MVSG. |
| 40 | Please confirm if the feeder from (Future) Grizzly Substation Expansion project to Bank 3/ Bank4 MVA 83 transformers is part of our scope of work or if this is future work. |
a) If this is indeed part of the project scope, please identify the size of the feeds nad locations where they are to run.
| No feeders from Grizzly Peak Station will be installed by this project. The short ductbank (with empty conduits) to manholes near SW-A8 are the limits of this project's scope. | |||
| 41 | Please confirm if Bank 3 / Bank 4 MVA 83 transformers are to be procured and installed as part of the NFU2 scope of work, or if this is a future phase of the project. | Not part of this project. | |
| 42 | Please confirm if the 3,000 ft underground duct bank feeds from Bank 3 / Bank 4 MVA 83 transformers to new manholes are part of the NFU2 project scope | ||
| a) If these are included in the project scope, please provide layout showing the feeds to the new manholes. | Not part of this project. | ||
| 43 | Please confirm if the new manholes shown on EP702-F are the same as shown on drawing EP102-F | Yes, these are the same two manholes. | |
| 44 | Please provide a detail on the new manholes shown in Option F. | Will provide standard/typical manhole specifications. | |
| 45 | Drawing EL107, Key Note 2 references 3/SY106 for pole-mounted wall packs (W1). SY106 detials pertain to Grid 12 pipe details. Please clarify installation of the W1 wall pack fixtures. | Will provide post details. | |
| 46 | Please provide drawing A506 per note #4 on sheet EP101N. | There is no Sheet A506. The note points to Detail 06 on Sheet A505 | |
| 47 | Drawing EP102S notes 12-17 call out "Remove PDU from Panel and refeed to New Panel". Please provide a drawing layout where each of the PDU's are located. | The 6 PDUs are located on the same Compute Floor, last two rows near the West Wall to power N9 racks. Reference Question #6 for additional details. | |
| 48 | Please advise if there are LEED project requirements. If so, please advise if there is a LEED coordinator. | LEED certifcation is not required for this project. | |
| 49 | The LBNL Web page listed for LBNL's safety document PUB-3000 in the project manual is no longer active. Please provide a current ODF of the PUB-3000 to be used for bidding purposes | PUB-3000 is a live document, and not published in PDF. The web link redirects one to the following link: https://sites.google.com/lbl.gov/eshmanual/home | |
| 50 | Drawings specify 3x12 pressure treated douglas fir lagging. Please specify an AWPA use case/treatment | AWPA U1, Use Category UC4B . Will be incorpoated into IFC specs | |
| 51 | 2/SB502 shows the 12" shotcrete wall between shoring piers. Please provide a detail for the connection between the 12" shotcrete wall panel and the adjacent 24" dia. shafts. | Connection between 24" dia shafts and shotcrete wall is shown on SB107D-A. Extend (6) pier bars into the wall. Note that when soldier piles are not used, the piers are concentric under the wall (not adjusted to the upslope side). | |
| 52 | 2/SB502 shows the 12" shotcrete wall between shoring piers extending well below the existing grade. Please clarify the bottom of the 12" shotcrete wall. | Bottoms of walls are all shown on civil elevations, sheets CG107, CG107D and CG107E. Graphics will be updated on IFC set to better reflect actual elevations. Note Top of the upslope wall is even with the mechanical platform elevation | |
| 53 | 4/SB502 shows a field welded single bevel CJP. Please confirm that this weld is not applicable or clarify how it applies to the detail. | Graphics on detail will be updated. That weld connects the headed stud to the wide flange. | |
| 54 | a) Please provide location for project jobsite trailer |
b) Please confirm University shall provide temporary utility meters for jobsite trailer. Please provide cost of University for installation of meters
| c) Please confirm General Contractor required to include temporary office utilities | Please refer to Temporary Facilities (013500 3.3D) in specification section 013500, Special Procedures. Power and water would be available to the GC jobsite trailer location provided the GC connects the utilities with meters. Please refer to 013500. The jobsite trailer, if needed, may be located within any of the designated laydown areas. NERSC will make 4 office/cubicle spaces available within B59. The on-site Safety Manager and Site Superintendent could set up within the Mechanical Level. | |
| 55 | a) Please confirm location for worker parking |
b) Please confirm General Contractor to include costs for worker parking and shuttling
a) There are no guarantees of parking passes for personal vehicles of GC workers. Parking would be limited to (a maximum of 5 GC parking passes) Lot D (The Pit). Official company vehicles carrying tools, materials, equipment may park at the project laydown area, or in Lot D without the GC parking pass.
b) The costs for off-site worker parking should be included in Offeror proposals. LBNL shuttle service is provided to and from Rimway Parking Garage, located immediately north of Memorial Stadium.
56 Please confirm badging requirements Please refer to the LBNL Subcontractor Construction Resource Page .
Affiliates can be U.S citizens, green card holders or foreign nationals. Here is information about SST countries. Foreign nationals or green card holders from SST countries are not allowed to come to Berkeley Lab.
| 57 | a) Please confirm if this project will be require the compliance to the FAR Section f15.403-4 "Requiring certified cost or pricing data", also noted as CCoPD. This requirement was noted in the RFP T&C section. This would require additional compliance requirements for the project. | ||
| b) Or please advise if this required is not applicable to this project. | Certified Cost or Pricing Data does not apply as this is a competitive solicitation. | ||
| 58 | Please confirm that no temporary utilities will be required during system shutdowns required for piping connections. | For tying into cooling water loop, no temporary cooling water loop functionality will be required. | |
| 59 | Please provide the cutsheets or relevant information on the motors that are requested for replacement on the CT’s under Independent Option B. | Located in BOD Attachment D, page 34-40, will transmit as separate packet. | |
| 60 | Please confirm if taps are allowable in lieu of tees where coming off a pipe 2 sizes larger (such as 14” off of 28” for future heat recovery chiller feeds). | This approach is acceptable as long as code requirements and specification requirements are met. Hot tapping is not allowed. | |
| 61 | There is a mix of isolated piping in the main building. Per structural drawings it is assumed that other than flexes at the new units all piping will be rigidly supported, not isolated by springs. Please confirm this is the correct assumption. | To clarify, there are three locations along the exterior piping run where dynamic movement joints are required. See Drawings SB105, SY106, SY109, and MP201 for locations. Otherwise all other piping will be rigidgly supported. | |
| 62 | Please confirm the anticipated means of flushing the system, if using the house pumps is acceptable, and if not how long the system may be down for flushing and/or where taps should be included and how they should be abandoned to enable temporary pumps to be brought in for flushing. | Existing pumps may be used to facilitate system flushing. Process should include checking and cleaning strainers in piping systems. Refer to Question #9 for additional information about outages and impacts. | |
| 63 | Would it be acceptable to limit the proposal submission bid form to that of tab 1 & 2 only? Successful offeror will then, post bid, provide the detailed breakdown shown in tabs 3-9? | No, the bid form must be completed for the proposal. | |
| 64 | The web page listed for LBNL's Safety Document PUB-3000 in the Project Manual is no longer active (page 154 of 1130 - 013529-2 Revised Sec. 1.4 B.3.g). Please provide a current PDF of the PUB-3000 to be used for bidding purposes. | PUB-3000 is a live document, and not published in PDF. The web link redirects one to the following link: https://sites.google.com/lbl.gov/eshmanual/home | |
| 65 | Please confirm the number of parking spots available to subcontractors | See response to Question #53. | |
| 66 | Please confirm if this project will require the compliance to the FAR Section f15.403-4 "Requiring certified cost or pricing data", also noted as CCoPD. This requirement was noted in the RFP T&C section. This would require additional compliance requirements for the project. |
| Please advise if this requirement can be removed from the contract terms. | Certified Cost or Pricing Data does not apply as this is a competitive solicitation. | ||
| 67 | Please confirm Manufacturer of existing switchgear MVSG (SW-A7) as shown on sheet EP701. | GE | |
| 68 | Drawing EP702-F please confirm if the feeder from (Future) Grizzly Substation Expansion project to Bank 3/ Bank4 MVA 83 transformers is part of our scope of work or if this is future work. | ||
| a. If this is part of our scope, please identify the size of the feeds and locations where they are to be ran. | Not part of scope. | ||
| 69 | Drawing EP702-F please confirm if Bank 3 / Bank 4 MVA 83 transformers are to be procured and installed as part of our scope of work or if these will be included in a future scope. | Not part of scope. | |
| 70 | Drawing EP702-F please confirm if the 3000ft underground duct bank feeds from Bank 3/ Bank 4 MVA 83 transformers to new manholes are part of our scope. | ||
| a. If these feeds are to be included in our scope please provide a layout showing the feeds to the new manholes. | Not part of scope. | ||
| 71 | Please confirm if the new manholes shown on drawing EP702-F are the same as shown on drawing EP102-F. | ||
| Updated (2/28): Please confirm if the new manholes shown on drawing EP702-F are the same as shown on drawing EP102-F. Are these part of the Grizzly substation project? Please provide size/spec. | Yes, these are the same two manholes. | ||
| 72 | Please provide a detail on the new manholes shown in Option F. | See attachments for manhole design, or equal. | |
| 73 | Drawing EL107, Key Note #2 references SY106, detail 3 for pole mounted wall packs (W1). SY106 details are all pertain to Grid 12 Pipe Details. Please clarify installation of the W1 wall pack fixtures. | Will provide post details. | |
| 74 | Please provide drawing A506 per note #4 on drawing EP101N. | There is no Sheet A506. The note points to Detail 06 on Sheet A505. | |
| 75 | Drawing EP102S notes 12-17 callout “Remove PDU from PANEL and refeed to NEW PANEL”. Please provide a drawing layout where each of the PDU’s are located. | The 6 PDUs are located on the same Compute Floor, last two rows near the West Wall to power N9 racks. See question 6 for additional details. | |
| 76 | (6) Panels Shown as (N) New on panel schedules are not shown on any of the single line diagrams. Please confirm these are indeed new and please also provide which distribution boards feed these panels. |
EP603 - 692A5A, 693A5A, 691A1A, 692A6A
EP604 – 783A3A
EP606 – 590A10A, 785A EP603 - All panels are existing and used to refeed PDUs.
EP604 - 783A3A is new and shown on SLD EP706 and EP706-F.
EP606 - 590A10A is new and shown on SLD EP708. 785A is the new Mini Power Center on the North Slope ACHE array that's powered from 596A1A7A (see panel schedule EP608).
| 77 | Will LBNL provide construction water for this project or will we need to provide for our own usage? | Please refer to Temporary Facilities (013500 3.3D) in specification section 013500, Special Procedures. Power and water would be available to the GC. |
| 78 | Can you please confirm the ¾” DUCTILE IRON PIPE (water line @ sloped walkway, North Slope Utility Plan CU107) connects in the same location (i.e. same tap location v/s new tap) as the irrigation line to be removed as shown in CD107/D/E, or if a new tap will need to be completed for this service? | Same location, new tap not required. |
| 79 | For the same utility, ¾” ductile iron pipe is not a manufactured product. Can we assume to construct using materials approved / specified in the campus / project specifications packages? | Sch 40 PVC or copper pipe is acceptable. Ensure daylighted piping is copper and not PVC. |
| 80 | For the electrical utility substructure, there isn’t a size of new electrical manhole vault identified in the plans, details, or specifications. Is there an assumed / required size we will need to account for? | See attachments for manhole design, or equal. |
| 81 | Drawings specify 3x12 Pressure Treated Douglas Fir lagging. Please specify an AWPA use case/treatment. | AWPA U1, Use Category UC4B . Will be incorporated into IFC specs |
| 82 | 2/SB502 shows the 12" shotcrete wall between shoring piers. Please provide a detail for the connection between the 12" shotcrete wall panel and the adjacent 24" dia. shafts. | Connection between 24" dia shafts and shotcrete wall is shwon on SB107D-A. Extend (6) pier bars into the wall. Note that when soldier piles are not used, the piers are concentric under the wall (not adjusted to the upslope side). |
| 83 | 2/SB502 shows the 12" shotcrete wall between shoring piers extending well below the existing grade. Please clarify the bottom of the 12" shotcrete wall. | Bottoms of walls are all shown on civil elevations, sheets CG107, CG107D and CG107E. Graphics will be updated on IFC set to better reflect actual elevations. Note Top of the upslope wall is even with the mechancial platform elevation. |
| 84 | 4/SB502 shows a field welded single bevel CJP. Please confirm that this weld is not applicable or clarify how it applies to the detail. | Graphics on detail will be updated. That weld connects the headed stud to the wide flange. |
| 85 | 20” Dia soldier piles are specified on SB105 and SB107E-A. 20” drill tools are not standard. Please confirm 24” drilled hole diameter is acceptable in lieu of 20” drill hole. | 24" acceptable. will update on IFC set. |
| 86 | Please specify shotcrete finishes at each shotcrete wall location. | Typical shotcrete finish is F3 Class A Steel Trowel Finish. At downslope side of north slope wall, under the mechanical platform only, a sponge or wood float finish is acceptable. At east pad, exterior concrete should match the existing adjacent concrete (form finish). |
| 87 | The extents of shotcrete on 2/SB306 visually vary from those shown on CG107-E East Structure Profile. Please provide top of wall and bottom of wall elevations on the structural drawings to clarify. Similar applies to 2/SB307 and CG107 Midslope Wall Profile. | The top of wall elevation shown on CD107-E will be updated to match 2/SB306. Top of wall to be even with top of platform per 2/SB306 and 2/SB502. bottom of wall to follow elevations shown on Civil |
| 88 | Please confirm treated lagging is required. Cutting of treated lagging requires significant EHS mitigation and approvals at LBNL jobsites per the PUB-3000. Other jobs at the Lab use untreated lagging for permanent walls behind shotcrete. | treated lagging is required. This will be incorporated into 315000 of IFC specs. |
| 89 | Please confirm that pile tip elevations meet the bedrock embedment requirements. | The geotechnical engineer of record will need to confirm final depths on all piles. We have done our best effort to estimate final drilled depths based on borings available. Because final grades under the platform are digging out grade, and anticipated bedrock is 5' below finished grade, we do believe the depths are accurate relative to infomration available. See also response to comment 88 |
| 90 | SB107D-A and SB107A calls out the soldier piles on the north end with a 16' embedment into bedrock. Please clarify if the 16' embedment is intended to apply only to the toe. For example, if the top of pile is in bedrock, is the pile length 16'? Or is the pile length equal to the cut height plus a 16 foot toe? | Cut height plus 16'. will show this in revised elevations on SB307 for IFC set. For other areas: assume utlitilty corrodior and wall upslope of platform has minimum embedment is 12' into bedrock and that bedrock starts at the pipe bedding eleavation or bottom of wall.For mid slope walls, assume 16' embedment into bedrock and that bedrock starts at bottom of wall shown on civil elevations. |
| 91 | Please provide photos of the existing motors to be replaced in the cooling towers. We would like to get a better idea of access and confined spaces. | Each cooling tower has a manufacturer-provided access system that allows direct access to the fan motors. Photos are provided for reference. |
| 92 | Drawing MP107, Note 7 refers to drawings MP305 to MP305. Pages are not found, please provide. | Typo, correct sheets are MP401 through MP404. |
| 93 | Sheet A602: Opening $1204.A calls for door type "C" but door type elevations only show "A". Please advise. | Type 'A' in lieu of type 'C' |
| 94 | Spec 08113-3 HM Doors Section 2.2 - E, calls for Door Louvers. The elevations on plans, North Pad doors (NS100) do not have louvers. Which openings are to receive these? | No doors for this scope of work require louvers. |
| 95 | Will the requirements of CA PCC 7105 apply to this project, as it relates to Builder's Risk Insurance; which would limit our earthquake exposure to 5% of the total contract amount? | CA PCC 7105 would not apply to this as the Lab is federally-funded and is not a state entity. |
| 96 | It was mentioned at the site walk that office space for (4) individuals may be available within the existing B59 building. Please confirm if this office space exists and can be used by the GC? Please also advise on availability of meeting rooms mentioned as well? | 4 cubicle spaces will be available for the General Contractor within existing B59. Interface meetings with LBNL within B59 will be scheduled by the Lab. The General Contactor will also be allowed to reserve meeting rooms within B59 provided the use of meeting rooms does not impact normal personnel operations. This arrangement was successful during the previous facility upgrade prior to the pandemic when the building was fully staffed. At present on-site staffing is significantly lower than pre-pandemic. |
| 97 | Please confirm that the GC should assume offsite parking with shuttles in the base bid? Please advise approximately how many parking spots will be made available, if any, to the GC? | See response to Question #53. |
| 98 | It was noted at the site walk that a resource loaded schedule would be required. Please confirm the following: |
1. Are there specific guidelines and/or minimum requirements regarding the resource loading of the schedule?
| 2. Is a resource loaded schedule required at time of bid? | Please reference specification sections 010000 and 013216. A resource loaded schedule is NOT required at bid but overall scheduling plans and target dates are needed at bid. | ||
| 99 | Please confirm that the rental generator to maintain power to the lab will be furnished, installed, maintained, and refueled by Owner? Please confirm that the GC has no scope related to the rental generator? | Refer to Question #9. | |
| 100 | Please confirm that a full time Site Safety Manager with no less than 10 years of experience is required as mentioned during the site walk? | Confirmed. Ref. 013529 1.5B | |
| 101 | Please confirm that QEW certification is required for the electrical contractor for the project. | Confirmed. Ref. 013529 1.6A | |
| 102 | For Factors 4 and 5 on Experience and Past Performance, respectively, many data center/mission critical projects are confidential. Regarding references for these kinds of projects, can you please advise if including only a reference name and phone number would be acceptable? Can you please also confirm if it would be acceptable for clients to send letters of reference and project documentation directly to LBNL in lieu of including them in Factor 5 of the proposal? | As decribed for Factors 4 and 5, a written description of relevant projects and experience is asked of Offerors, including contact information for the customer/clients. Direct documentation to LBNL in response to Factor 5 will not be accepted. | |
| 103 | For Factor 5 Past Performance, regarding terminations and litigation over the last three years, can you please confirm if this information will be omitted from the 4-page limit? | Confirmed. | |
| 104 | Given the complexity of this job and the goal to obtain the most comprehensive and competitive pricing from subcontractors, we respectfully request an extension to the proposal due date. | The due date for proposals is extended one week to March 27, 2024. | |
| 105 | There seems to be a typo on drawing SE108-B & SE108-C. Sheet Note 4 mentions an Option “J” that does not exist. Can you confirm the sheet note should instead read: “East slope work in its entirety is removed if independent Option F is not selected” | Correct, "Option F" | |
| 106 | The Project Scheduling Specification calls to utilize a University-provided P6 template [Spec 013216-3.1(B)]. Is there a reference P6 schedule template you can provide? | A sample template will be shared ahead of the proposal due date. | |
| 107 | Spec Section 261300 – Please add ABB/GE and Schneider Electric (Square D) to approved manufacturers. | They will be added. | |
| 108 | Provide manufacturers, nameplate and/or submittal information for any equipment to be modified. (this was already submitted as an RFI) | We provided nameplate images | |
| 109 | EP102E Keyed Note 1 states to Coordinate with Vendor ABB/GE. E701-E708 require services of factory certified vendor. ABB/GE has stated they will not be bidding this project. Can the proposal include allowances or ROMs for modifications of existing equipment? Or could you establish a budget amount to be carried by all bidders for this scope pending a detailed site visit upon award? | The existing equipment and bus ducting are ABB/GE. These will need to be sole sourced from ABB/GE since they will need to integrate with the existing ABB/GE equipment. No other manufacturer is acceptable for these. |
https://pim.lbl.gov/resource/documents/implementing-documents/standards/construction-details-and-design-guidelines/volume-3-construction-details/part-6-electrical-standard-details/
File details come from the government source that posted it. Updated .