Additional_Responses_to_Industry's_RFIs_2-14-17.pdf

Facility-wide Modernization and Expansion of the Land Port of Entry at Alexandria Bay

GS-02-P-17-DT-C-7002

Additional RFI Responses as of 2/14/17

Please see the original RFI Response Sheet for RFI 1-17 and their respective responses.

Please see RFI Response Sheet dated 1/6/17 for RFI 18-78 and their respective responses.

Please see RFI Response Sheet dated 1/20/17 for RFI 79-111 and their respective responses.

Please see RFI Response Sheet dated 2/3/17 for RFI 112-126 and their respective responses.

RFI127: Please reference spec sections 230713 – Duct Insulations and 233113 – Metal Ducts. Section 233113 specifies two different types of duct liner (paragraph 2.3D – Fibrous-Glass Liner & paragraph 2.3E Flexible Elastomeric Duct Liner). Both the duct insulation specification and metal ducts specifications explain where to use the acoustic duct liner however there is no indication of which type of acoustic duct liner to utilize. Note that the flexible elastomeric duct liner is about 4 times the price and twice as difficult to install compared to the Fibrous-Glass liner. Please advise if the choice is up to the contractor or advise which type of duct liner we should use.

Response127: Fibrous-glass liner is acceptable.

RFI128: According to the Table of Contents they list two sections in Division 8: 084900 – Fire Rated Wall – Interior & 084913 – Fire Rated Wall Interior, but when you actual go into the sections, it only lists 084913

– Fire Rated Glass and Framing System (Exterior) on the first page on top but the bottom lists 084900 – Fire Rated Glass and Framing System for the footer, please clarify as to which one is correct and please fix the table of contents as well.

Response128: Section 084914 footer is incorrect but content of section is correct. Section footer is revised.

RFI129: I see a lot of spots that refer to steel items as “ galvanized stainless steel” or “galvanized S.S.“ -i.e. D1/MAE619, A1/MAE609 - obviously it can’t be both – please advise.

Response129: Price as Galvanized Steel.

RFI130: Screen fence details on HSS503 vary to same details on C3/DAE516 – bid per HSS503 I assume ?

Response130: Both details exist. Fence details on HSS503 applies to perf screen wall and screen gate at Impooundment Lot (Vol. 6 W-AE-101). Detail C3/D-AE-516 applies to Commercial Bldg Site Wall connected to building façade, as well as Outbound Inspection Site Wall.

RFI131: Dwg HSS503 calls out screen to be galv’d only – no mention of 3 coat paint over galv. Please confirm finish on screen steel

Response132: Include 3-coat paint over galvanized steel.

RFI132: Same for site wall steel

Response132: Include 3-coat paint over galvanized steel.

RFI133: Are the vertical S/S tubes to support the perf corr metal panels per B3/DAE516 to be designed, supplied & installed by panel manufacturer ?

Response133: Yes, S.S. tubes are part of panel manufacturer's scope.

RFI134: Division 051200 under mock ups it calls to construct one bay of framing for the following : 1) site wall : DSJ221 & 5/DSJ585, 2) elevated parking screen : DSJ210, 3) parking canopies : PSF121 - is the intent to build a full roof bay of steel here ?

Response134: Reference updated spec section 051200 (provided in Amendment 0006).

RFI 135: if accepted can mock ups be used as part of the construction

Response135: Mockups for the site wall are acceptable to be used as part of the construction if they are accepted by the Design Team. Mockups for the Elevated Parking Screen and Canopies shall not be used for final construction.

RFI136: · Detail 16/DSJ564 is missing, referenced on P SF 122 between P5.5 & 5.9

Response136: Please see 13/DSJ565 for detail. This applies to Sheet QSF121 and QSF123

RFI137: Detail 11/DSJ592 is blank, referenced on B/ZSB101 Vol. 6

Response137: Please see 11/DSJ565 for detail.

RFI138: · Detail 10/DSJ531 is missing, referenced on A/VSB101 Vol. 6

Response138: Please reference 14/DSJ531

RFI139: Detail 1/DSJ571 is missing, referenced on A/XSB101 Vol. 6

Response139: Detail 1/DSJ571 is not called out on A/XSB101, please confirm the detail and location where you are looking at.

RFI140: · Detail 1/DSJ575 is missing, referenced on A/XSF111 Vol. 6

Response140: Please Reference 4/DSJ581

RFI141: · Detail 13/DSJ582 is missing, referenced on QSF145 Vol. 7

Response141: Detail 13/DSJ582 was removed. This section cut will be removed from the plans

RFI142: · Tie off locations for secondary inspection canopy referenced on MSF121 Vol 5. not shown on architectural drawings.

Response142: Contractor to determine location and layout of tie-off anchors. See C-AE-114, M-AE- 111 and M-AE-112 in Amendment 6 for reference.

RFI143: · Finish on steel @ elevated parking framing on drawings PSF111, PSF112, PSF113 Vol 2, & QSF111, QSF112, QSF113 Vol 7.

Response143: Structural steel for the elevated parking structure is all exterior exposed steel. Finish shall be galvainzed with a three coat primer finish, color to be per Architect.

RFI144: · Drawing H CU I 13, at the upper right side of the drawing a duct-bank is shown being installed to an existing pole. Is the pole at the location where the duct-bank ends or some other location?

Response144: The duct bank is to end at an existing utility pole which is not shown on the plans. The pole is currently fed overhead and is approximately 60 meters from MH-110MV. There are no road crossings required between MH-110MV and the existing utility pole.

RFI145: · Drawings M EJ 6 01 & C EJ 6 01, regarding the primary service can you confirm that the cable form the pole to the transformer is provided, installed and terminated at both ends by the Utility company?

Response145: This was confirmed for the 2009 design. We have been unable to get an updated response from the utility company on the scope. We would assume the division of scope as shown on the drawing is still valid with the raceway furnished and installed by the Electrical Contractor.

RFI146: · Drawing M EP 1 02, between column lines ME & MF at the bottom of the page there is a paragraph identifying ug conduits, the message is not complete. Can you provide the complete message?

Response146: Note that M EP 102 is related to Phase 2. The note I think you are referring to is this:

ELECTRICAL CONDUIT ROUTED ON THE UNDERSIDE OF THE PARKING DECK, SEE ARCHITECTURAL AND

STRUCTURAL DRAWINGS FOR DETAILS. SEE DRAWINGS G-EJ-509 AND G-EJ-507.

RFI147: Drawing C EJ 6 01, the feeder from SWB-CB to SLEEC Booth, who provides the 100AS safety switch & transformer T1? Does they get installed outside the booth?

Response147: 100 amp disconnect switch and transformers will be furnished and installed by the electrical contractor. Both the 100 amp disconnect switch and the transformer are installed outside the booth.

RFI148: The following is an RFI from one of the named manufacturers for the Aluminum Covers spec section 055901. The location of the handrail in proximity to the location of the covers. Hallsten is concerned that both of these items cannot be placed in the manner shown on the attached drawing section 5 and still be properly mounted to meet the design specifications of the project. Hallsten has offered two options on the attached detail as possible solutions. The attached section ED005 shows what would be needed for a Hallsten cover to be mounted to the inside face of the concrete.

Response148: Design revisions will be considered following the submittal procedure post bidding process. For the purposes of bidding, use the details/products specified in the construction documents.

RFI149: Reference Drawing No. P SF 113, Legend for Pre-Cast Double tees: Types A & B are noted as having a flange width of 2548 mm. Drawing D SJ 521, Detail 1 table shows types A & B to have flange width of 2438 mm. Please clarify the correct size and correct the applicable dimensions on the table if required.

Response149: Double Tee Types A and B shall be 2438mm.

RFI150: Please verify elevations provided in column schedule on MSJ601. The bottom of plate elevations of the columns shown to sit on footings show them to be at an equal or higher elevation as compared to the columns on piers. I looked at the foundation plans also and the depictions of columns on piers or footings seems to match the schedule on MSJ601. For example when I do the math for column grid M1.9 / MN. The column sits on footing F2 which is listed at 85.2m to bottom of footing. F2 is 510mm thick ( per schedule on DSJ502 ) plus 40mm of grout puts bottom of base plate at 85.75m, the schedule lists 85.95.

Column grid M1/MN shows a pier with elevation 85.8m. This is obviously lower than M1.9/MN. The slab on grade elevation is 86.15m. So the pier is at a lower elevation than the footing? The elevations are off one way or the other. I am unable to determine the elevations of the piers other than what is listed on the schedule on MSJ601.

Response150: For Typical interior footings top of footing shall be 355mm below top of slab and bottom of baseplate shall be 305mm below top of slab.

RFI151: There is a spec. for fume hoods but can’t seem to locate one, please advise.

Response151: Fume hood located in Commercial Bldg - Room C138 Incinerator Organic (C-AE-103, C-AE- 430)

RFI152: Drawing C AJ 201 shows a new single wide Vet building trailer. Is this building provided by the government or contractor. If the contractor is to provide, plans and specifications are required.

Response152: Trailer is provided by owner.

RFI153: Spec Section 133421- Prefabricated Building Relocation- Part 1.2 references manufacturers assembly drawings are included in Attachment A. WE cannot locate eth attachment within the documents. Can you please furnish the attachment?

Response153: Attachment provided in Amendment 0006.

RFI154: 1. Drawing Volume 2: Plan P SJ 6 01; Elevated Parking Canopy – Column Schedule and Elevated Parking - Concrete Column Schedule, Reference Notes 3, 4, 5 and 6.

Note 3: References Plans PSF131, PSF132, PSF133 and PSF134 (Not included in the set) Note 4: References Plan PSF124 (Not included in the set) Note: 5: References Plan PSF 114 (Not included in the set) Note 6: References Plan PSF 101, PSF 102, PSF103 and PSF104 (Not included in the set) Are the referenced plans listed above as (Not included in set) to be issued for bidding purposes and do they contain critical information for the estimate?

Response154: 1. PSF131, PSF132, PSF133, PSF134, PSF124, PSF114 and PSF104 were note issued and removed prior to issuance. The notes have been updated to remove the referenced sheets.

RFI155: Drawing Volume 7: Plan Q SJ 6 01; Elevated Parking Canopy – Column Schedule and Elevated Parking - Concrete Column Schedule, Reference Notes 3, 4, 5 and 6.

Note 3: References Plans QSF134 (Not included in the set) Note 4: References Plan QSF124 (Not included in the set) Note: 5: References Plan QSF 114 (Not included in the set) Note 6: References Plan QSF 101, QSF 102, QSF103 and QSF104 (Not included in the set) Are the referenced plans listed above as (Not included in set) to be issued for bidding purposes and do they contain critical information for the estimate?

Response155: QSF134, QSF124, QSF114, and QSF104 are not included in the drawings. These have been removed from the notes.

QSF101 should be QSB101 QSF102 should be QSB102 QSF103 should be QSB103

RFI156: 1. Please reference Drawing CAE 200, West Elevation A3. The base wall is called out as EWS-3, Precast Architectural Panels. Section C1 taken between column lines CR & CP and detailed on Drawing CAE 356 does not indicate precast panels are utilized at the base of the loading dock. Is this wall section meant to address pre-cast panels below the adjustable loading dock platforms? If the wall section is intended to be a precast facade, please provide a corrected section. If the wall is intended to be cast in place per section C1/CAE 356, please provide details for the transition from CIP to precast if that is the intent along this line.

Response156: Please disregard pre-cast architectural panels directly under loading docks. Wall Section C1 C-AE-356 is correct. Face of cast-in-place foundation wall at dock leveler aligns with face of stem wall beyond. See C-AE-200 in Amendment 0006.

RFI157: Per Drwg. Vol. 6; Drwg. X AE 210 A2 (West Elevation), Ref. Section C1 and D1 on X AE 350. a.

Section C1 and D1 on X AE 350 call for a Continuous Gutter System at the top of the canopy. How and where is this continuous gutter system supposed to terminate?

Response157: Gutter system terminates at northernmost column on gridline EB.

RFI158: Reference Volume 4, Drawing D-AE-561, Details B1, B2, B3 and C2: The referenced details show a product cladding the underside of the window head drywall and turning up behind the window shade housing. Is this the “Aluminum sheet metal ceiling closure at interior building perimeter” called out in Section 0570000, Paragraph 1.2.A.5? Please identify what this product is.

Response158: Yes - material is bent aluminum plate, painted to match wall.

RFI159: Reference Volume 4, Drawing D-AE-561, Details B1, B2, B3 and C2: The referenced details call out “For window shade and ceiling info see E3/D-AE-612”. This detail does not exist; please provide.

Response159: Please reference sheet D-AE-613 for roller shade details.

RFI160: Please provide requirements for HVAC and Electrical work in the Temporary CBP Warehouse (Phase 1H).

Response160: Please reference spec section 133419.

RFI161: Please confirm that the owner will be responsible for the relocation of the mobile VACIS (Phase 1Q) or if the contractor is responsible, please provide requirements.

Response161: Contractor is responsible for relocation. See spec section 133421 (provided in Amendment 0006).

RFI162: Questions regarding the Aphis Pumps. I have been working on this project and looking over the drawings I haven’t been able to locate a pit depth on the Aphis recirculation pumps. Also, in section

221329.16 page 3 for the Aphis pumps design they call out 680 @ 26 M or 180 gpm @ but don’t give a TDH, would you be able provide the pump out design?

Response162: Septic tank depth: 3.45 meters. APHIS Tank Solids Pumps – design capacity liter/mm (gpm) @ specified Head (mm) (feet): 680 (180) @ 26 (1) (pump out), 2080 (550) @ 14 (0.5) (recirculation). Page 3 of specification Section 221.329.16 attached with updated pump information.

RFI163: Reference is made to Specification 034100, Precast Structural Concrete, 2.12 A. Please identify the “progressive collapse restraints at each type of double tee and precast beam assembly” details. This is not delineated on the referenced drawing DSJ 521. Please also identify where the loads and procedures for testing are shown on the drawings.

Response163: Please disregard reference to Progressive Collapse. It is no longer in the design.

RFI164: Reference Specification 034100. 2.10 E. Please identify the exterior precast components on the parking structure that require architectural finish.

Response164: These have been removed from the project. See revised spec section 034100 (provided in Amendment 0006).

RFI165: Reference Section A1/CAE 351. The wall section depicted uses an EWS2-3 (insulated metal panel/perforated corrugated screen) cladding system. Detail reference A1/DAE 551 noted at the base of the wall employs an EWS3 (precast panel) cladding system. Please clarify.

Response165: Please refer to B3/D-AE-541 instead.

RFI166: Please define the required thickness for the precast sill/coping for the EWS3 architectural precast wall system.

Response166: 70mm from top of precast coping to centerline of joint.

RFI167: Regarding the aforementioned precast coping, what is the required spacing of the dowel pins and is it intended that the support angle is to be continuous or intermittent short pieces at certain spacing? (Ref. Detail B2/DAE/521).

Response167: Final support method is per precast contractor.

RFI168: Commercial building and main building: - In regards to the cabinets that are indicated to be finished plastic laminate PL-1 there is a big confusion: The elevations indicate PL-1 which is described as plastic laminate (usually this is 1/16" thk.). As a typical example see cabinets on page C AE 659. But the typical details B3, B4/D AE 671 show 1/4" solid surface finish applied on the doors and drawer faces. It is very important to clarify this because it applies to a lot of cabinetry. The difference in price would be very significant if all those cabinet doors and drawer faces have to be covered with 1/4" solid surface.

Response168: Cabinet doors and drawer faces to be finished with plastic laminate. Only countertops are to be finished with solid surface. See revised D-AE-671 in Amendment 6.

RFI169: On dwg. G LP 411 what is the dimension between supports shown on detail 2?. Note 7 mentions 2 x 12’s as beam carriers, none are shown on the dwgs.

Response169: On Detail 2, dimension between joists is 400mm, dimension between beam carriers is 2.44m max. As shown in Detail 2 and Detail 4, beam carriers shall be 50mmx255mm (2"x10").

RFI170: We noticed that the wastewater treatment plant flows specified in the bid documents were cut in half, however, all the equipment specified has remained the same.

A few changes have been made to the sections reviewed last September. We submitted comments to Barton & Loguidice and we understood that Aerzen blowers going to named as a manufacturer in section 333003.

Response170: Manufacturers list will not be amended at this time. Substitutions or equals can be reviewed for consideration in accordance with the contract documents during construction.

RFI171: Volume 3 of the plan set (page 15) shows building B to be demolished. Can the demolition of this building be completed prior to drilling and blasting beginning on the adjacent rock cut areas (Area B as shown on page 51 of Vol. 3) rather than during Stage 1I?

Response171: 1. Building "B" cannot be demolished until the temporary CBP warehouse is constructed and operations are relocated to the temporary warehouse (shown to occur in Stage 1H). 2. Please refer to "Rock Removal/Blasting" notes on G-CM-001 for restrictions specific to timing of drilling and blasting operations.

RFI172: Section 333001: Submersible Sewerage Pumps Please make this an RFI Page 221329.16-4 Part 2.2.A.4. specifies that the SBR sludge waste pump motors to meet Class I Division I locations. Please confirm that the electrical classification of the SBR basins, sludge holding basins and pre-equalization and post equalization basins is Non - Classified. Please add Aerzen to the equipment manufactuers.

Response172: Sludge holding basins, pre-equalization basins, and post-equalization basins are Class I Division I spaces. SBR basins are not classified spaces. Manufacturers list will not be amended at this time. Substitutions or equals can be reviewed for consideration in accordance with the contract documents during construction.

RFI173: Section 333001: SBR System Please make this an RFI · Page 333001-6 Part 2.3.O: specifies top and bottom mooring posts supports. Please delete this requirement, as they are not required for basins smaller than 20 feet deep.

Response173: Design revisions will be considered following the submittal procedure post bidding process. For the purposes of bidding, use the details/products specified in the construction documents.

RFI174: Section 333114: Valves Please make this an RFI · Page 333114-1 Part 2.3.A : Keystone HS2 have been specified. Please note that this valve has been discontinued. Please update this with a current model valve..

Response174: There are other valves/maufactures listed in the specification. Per specification, "approved equals" are allowable and can be reviewed through the submittal process during construction.

RFI175: Section 409001: Instrumentation and Control Please make this an RFI · Page 409001-2 Part 1.1.B.8: Calls for equalization and SBR blowers. Please revise to read Sludge holding basins and pre-equalization basin. · Page 409001-3 Part 1.2.F: Please provide a complete I/O list of signals to be integrated to the SBR control panel. · Page 409001-6 Part 2.1.D: Please provide a complete I/O list of signals. · Page 409001-7 Part 2.2.G: A level sensor monitoring for the sludge holding basins is specified in this part. Please provide additional information on this sensor. · Page 409001-9 Part 2.3.B.5: Surge protection and lightning protection is specified in this part. Please provide more description on the requirements. (i.e. Surge Protection for main power supply only, Surge Protection for analog signals, Surge Protection for digital signals)

Response175: Refer to updated Section 409001. SBRCP shall transmit the status of control equipment specified or referenced in this Section to Building Management System (BMS). All, but not necessarily limited to, applicable inputs/outputs (I/O) as listed in the Construction Drawings sheet H CU 6 32 Instrumentation and Control Field Wiring Schedule shall be integrated/transmitted by SBRCP. All applicable set points, level controls, time factors and similar items shall be fully field adjustable at the SBRCP. Submersible level sensor shall be KPSI Model 750 or approved equal. The level sensor shall be provided with bellows and junction box with vent filter and filter desiccant. Supply all power supply, cables, wire, housing, power conditioning, transient surge protection for main power supply, software, licenses and all else required to provide a complete and operational system.

RFI176: Drawings: H CU 3 31: Please make this an RFI a. A decant pipe and decant Cranes are shown on Section 1. Please confirm this equipment is to be supplied by the installing contractor. b. The decant valves are butterfly valves and not plug valves. Please revise as specified in Section 333001.

Response176: a) The contract documents require that this equipment be provided. b) Specifications take precedence over drawings.

RFI177: In the door schedules the Door thickness called for are 44mm/1.73” 44.5mm/1.75” and 45.5mm/1.79”, is there a reason for this (I don’t see a pattern) are there actual differences in door thicknesses that we are required to provide?

Response177: Door schedule shows all door thicknesses as 44.5mm (except for roll-up doors). Please verify noted discrepancies. Refer to Amendment 4 for latest door schedule.

RFI177: Drawing C AJ 1 02 The temporary Cmmercial Building Layout doesn’t have any door numbers and There are 4 less doors on the door schedule then on the floor plan, can I assume that the doors into rooms 105, 106, 107 and 108 from corridor 104 are not being replaced?

Response177: Refer to Amendment 0004 for revised C-AJ-102 with door tags. Doors without tags are not being replaced.

RFI178: Door Schedule D AE 8 04, Temporary Commercial building, Door Type; What kind of doors are the doors types A and C? There are no corrisponding elevations on Drawing D AE 8 01 “ Door Types”

Response178: Refer to Amendment 0004 for latest door schedule (types revised).