MSEC- Building 606 - Amendment 6 - RFIs - 13 Oct 25.pdf

PROJECT TITLE: REPAIR BLDG. 606, GENERAL INSTRUCTION BUILDING,

MATH AND SYSTEM ENGINEERING CENTER (MSEC)

PROJECT LOCATION: WEST POINT, NEW YORK

W912DS25RA002

AMENDMENT 0006 FOR REPAIR BLDG. 606, GENERAL INSTRUCTION BUILDING,

MATH AND SYSTEM ENGINEERING CENTER (MSEC)

TO OFFERORS:

OFFERS ARE STILL DUE ON 31 OCT 2025 @ 1400. ALL RFI’S ARE DUE NO LATER THAN COB 20

OCT 2025.

The following changes shall be made to the drawings and specifications.

DRAWINGS:

1. The following DRAWINGS have been REVISED and REISSUED:

Structural:

Drawing S-001

• Revised note.

Drawing S-103

• Revised CFMF.

Drawing S-105

• Revised CFMF.

Drawing S-107

• Revised CFMF.

Drawing S-109

• Revised CFMF.

Drawing S-110

• Revised CFMF.

Drawing S-113

• Revised CFMF.

Drawing S-115

• Revised CFMF.

Drawing S-303

• Revised detail B8.

Drawing S-310

• Added detail A1.

Drawing S-311

• Revised detail A8.

Drawing S-312

• Revised detail A1.

Drawing S-315

• Revised detail C7.

Drawing S-316

• Revised detail A1.

Drawing S-322

• Revised detail D6.

Drawing S-323

• Revised detail A9.

Architecture:

Drawing A-002

• Revised signage note.

Drawing A-003

• Revised note partition types.

Drawing A-102

• Revised infill of opening.

Drawing A-105

• Revised note.

Drawing A-206

• Revised infill of opening.

Drawing A-304

• Revised infill of opening.

Drawing A-305

• Revised infill of opening.

Drawing A-312

• Revised wall top.

Drawing A-313

• Revised wall top.

Drawing A-314

• Revised wall top.

Drawing A-315

• Revised infill of opening.

Drawing A-319

• Revised note.

Drawing A-413

• Revised stair naming convention.

Drawing A-502

• Revised detail at CFMF.

Drawing A-503

• Revised detail at CFMF.

Drawing A-504

• Revised detail at CFMF.

Drawing AD-101

• Revised demo note.

Drawing AD-103

• Revised demo note.

Drawing AD-301

• Revised demo note.

Interior:

Drawing I-100.1

• Revised schedule.

Drawing I-100.2

• Revised note.

Drawing I-100.3

• Revised note.

Drawing I-100.4

• Revised note.

Drawing I-100.5

• Revised note.

Drawing I-105

• Revised flooring note.

Drawing I-108

• Revised flooring note.

Drawing I-110

• Revised stair naming convention.

Drawing I-113

• Revised stair naming convention.

Drawing I-130

• Revised stair naming convention.

Mechanical:

Drawing MH-101

• Revised equipment.

Drawing MH-104

• Revised equipment.

Drawing MP-101

• Revised equipment.

Drawing MP-102

• Revised piping.

Drawing MP-104

• Revised piping.

Drawing MP-105

• Revised piping.

Drawing MP-107

• Revised piping.

Drawing M-505

• New sheet of details.

Drawing M-607

• Revised schedule.

Hazard:

Drawing H-001

• Revised note to include additional asbestos abatement.

Drawing H-100

• Revised note to include additional asbestos abatement.

Drawing H-101

• Revised note to include additional asbestos abatement.

Drawing H-102

Drawing H-103

Drawing H-104

• Revised note to include additional asbestos abatement.

Drawing H-105

• Revised note to include additional asbestos abatement.

Drawing H-106

• Revised note to include additional asbestos abatement.

Drawing H-107

• Revised note to include additional asbestos abatement.

Drawing H-108

• Revised note to include additional asbestos abatement.

Drawing H-109

SPECIFICATIONS:

1. The following SPECIFICATION SECTIONS have been ADDED and are provided in their entirety herein:

a. 33 63 13 - Exterior Underground Steam Distribution System

b. 33 61 13.13 - Prefabricated Underground Hydronic Energy Distribution

2. The following SPECIFICATIONS SECTIONS have been DELETED in their entirety:

a. None

3. The following SPECIFICATIONS SECTIONS have been REVISED and REISSUED:

a. 05 40 00 - Cold formed metal framing

b. 05 51 33 - Metal Ladders

c. 07 52 00 - Modified Bituminous Membrane Roofing

d. 08 60 45 - Skylights

e. 08 81 00 - Glazing

f. 01 33 00 - Submittal Register_AM 6

4. The following SPECIFICATIONS have been REVISED but NOT REISSUED:

a. None

PROPOSER’S QUESTIONS AND GOVERNMENT REPLY:

Questions that may be of general interest to all Offerors and/or Government and that are not readily answered by the proceeding changes will appear below. These questions may have been paraphrased or altered to represent several questions regarding the same subject and/or simply revised the solicitation, plans or specifications. All responses to questions are for informational purposes only.

1. Please clarify if/where seismic restraints are required. In 21 13 13-14 Paragraph 3.4.1 the fire protection system does not require seismic restraints. In 22 00 00-34 Paragraph 3.1.7.2 states that it is required for plumbing pipe but doesn't give any more information on what is required. In HVAC, spec section 23 05 48.00 40 is silent on seismic. It has the vibration controls but no direction either way on seismic. Seismic is also mentioned in the div 26 and 27 specs but not consistently. Is this building in a seismic zone? Will there be different requirements for different systems? If so, to what extent.

Answer: The building is in Seismic Design Category B.

The project must comply per UFC 4-010-01 Minimum Antiterrorism Standards for Buildings.

Standard 19 requires the following:

– Equipment Bracing For the new infill addition, this Standard requires mounting all overhead utilities weighing 31 pounds (14 kilograms) or more (excluding distribution systems such as piping networks that collectively exceed that weight) to minimize the likelihood that they will fall and injure building occupants. It requires mounting all such systems so that they resist forces of 0.5 times the component weight in any direction and 1.5 times the component weight in the downward direction. This standard does not preclude the need to design equipment mountings for forces required by other criteria such as seismic standards.

- Mechanical does not require seismic restraints with the exception of Standard 19 in UFC 4-010-

01. There are 2 mech units in the new construction that will need details for support of equipment that exceeds 31 pounds. See M-505 issued with Addendum #6.

- No seismic bracing is required for the Fire Protection system.

2. Please provide coupon test of existing steel indicating structural loading capabilities. If not provided, please indicate quantity of existing steel connections to be coupon tested for the steel subcontractor to perform.

Answer: Coupon testing of existing steel is not required.

3. Please advise on the type of printable window film to be used as shown.

Answer: Must meet performance listed in specification section 088100. The basis of design will be provided to the awardee.

4. Please Confirm that the Elevator Directory Signage Map on A451 will be picked up by us as there are no details shown on the Signage schedule.

Answer: Elevator Directory is part of the owner supplied and installed digital signage package and is separate from Elevator Signage Map (EP-1), which is detailed I-120.2, provided and installed by contractor. All blocking, power, and data is provided by contractor. Refer to updated sheet A-002 attached.

5. Please also confirm that the Mathematics 1st Sign, The West Point Military Signage and Systems Engineering Signage on Detail A1, A452 will be picked up by us as they are not shown on the Signage Schedule.

Answer: The signage shown is for reference only and will be provided and installed by others. Provide plywood blocking behind. Refer to updated sheet A-002 attached.

6. Please clarify in-wall blocking requirement for wheelchair lift.

Answer: Blocking requirements are per Lift manufactures specification. A basis of design will be provided to the awardee.

7. Please confirm no additional scope for loading dock (i.e. dock levelers, dock lights, diamond plate walls, etc). If scope exists, please provide elevations.

Answer: No additional scope confirmed.

8. The Architectural drawing A503 shows some cold form framing and references the structural drawings for more information. It does not appear that the structural drawings are showing cold form in these locations. Please advise.

Answer: Structural Detail issued with AM #6. Architectural revision will be issued in AM #7.

9. Drawing MS-100 in Addendum 3 states the steam/condensate connections are to be made inside Vault 4. Detail D6 on M-303 shows the unions to connect to outside of the vault.

Please confirm there is no work within the vault.

Answer: Confirmed. There is no scope within Steam Vault F4.

10. Please confirm both underground chilled water and steam/condensate are to be insulated with cellular glass.

Answer: Neither system is insulated with cellular glass. Refer to specification sections included in this amendment.

11. Detail B8/S-303 indicates that W8x24 temporary shores shall be installed to laterally brace the existing foundation wall and infilled opening during casting of flowable fill within the existing areaways. Although the size of the temporary shores is provided, details for the spacing of the W8x24 shores and the connection to the existing SOG and First Floor are not provided. Please confirm the temporary shore spacing and provide details.

Answer: Detail are issued with this amendment.

12. There are no thermal breaks shown at several locations where structural steel elements cross the insulation layer. Please confirm if thermal break materials (thermal pads such as Armatherm of Fabreeka) or thermally broken façade support angles are required (Halfen FK- 4, H&B TBS System).

Answer: Thermal break materials are not required.

13. Base plates of new HSS columns at Level 5 West will extend into corridor (Room 510).

Please confirm that the exposed base plate as detailed in the Structural Drawings complies with the architectural design intent.

Answer: Apply Stainless Steel cap over base of column to conceal base plate and fasteners.

14. Please confirm lighting control wiring can be ran free air and not in conduit.

Answer: Lighting control wiring shall be in conduit.

15. Please confirm size/dimensions of the existing functioning interior elevator, and if the existing elevator has an operable roof hatch available.

Answer: Size of existing elevator cars is unknown. Both elevators have penthouses above the roof with man door access.

16. Will there be an opportunity for more site visits before the bid deadline? If so, how soon can we arrange a visit?

Answer: No.

17. Per specification 23 07 00 section 3.2.2.5, please confirm that the factory supplied Hi-Lo temp fiberglass inserts are acceptable insulation under the PVC fitting covers for fiberglass insulated systems. Are Hamfab inserts required.

Answer: Confirmed. Hamfab inserts are not required.

18. Per specification 23 07 00, Section 3.3.4.4. This spec references 2 coats of weather barrier mastic along with a metal jacket or vapor barrier/weatherproofing jacket. Is it the intent to use 2 weatherproofing systems on the outside rectangular duct?

Answer: Elastomeric closed cell type insulation exposed to weather shall have two coats of weather barrier mastic. Rigid insulation shall have a metal weatherproofing jacket.

19. Specification 23 07 00 table #2 on page 21 lists horizontal storm and roof drain bodies to be insulated. Section 3.2.2 b on page 22 states to insulate horizontal and vertical portions of interior roof drains. Do all vertical portions roof drains get insulated?

Answer: Yes.

20. Please provide a list of small businesses that have shown interest in this job and/or have worked at West Point in the past.

Answer: USACE does not provide recommendations or lists.

21. Please advise if grooved end type check valves are acceptable in lieu of flanged end type check valves as required by spec section 211200, page 5, para 2.1.3.

Answer: Government standard is to provide products per specifications. Variations from the specification must have written approval from USACE.

22. Please advise if riser manifolds such as the Victaulic Series Universal Manifold Check

Assembly (UMC) are acceptable in lieu of the alarm valves specified in spec section 211220, page 6, para 2.1.10.

Answer: Government standard is to provide products per specifications. Variations from the specification must have written approval from USACE.

23. Please confirm that there are no existing combustible concealed spaces in this project that will require fire sprinkler coverage in accordance with NFPA-13.

Answer: Based on the information to date we have not encountered any concealed combustible construction.

24. Spec section 211200, page 4, para 2.1.1 requires all piping to be black schedule 40. Spec section 211313, page 10, para 2.3.1.1 allows black schedule 10 for piping larger than 2”.

Please advise if schedule 10 piping for sizes larger than 2” is acceptable for all sprinkler, standpipe & fire pump piping.

Answer: 21 12 00 provides criteria for standpipes. 21 13 13 provides criteria for sprinkler systems. 21 30 00 provides criteria for fire pump and associated piping.

25. The provided As-Builts depicted on drawings FXD100 through FXD109 appear to be for the existing domestic plumbing system. Please advise if As-Built drawings can be provided for the existing overhead sprinkler system to be used for accurate pricing for the demolition.

Answer: Some fire protection piping is shown on FXD100-FXD109, which shows the only existing fire protection as per the as-built drawings.

26. Please provide more information regarding the current incoming electrical service for the building. What is the voltage/amperage of the service? What are the sizes of the existing switchboards/panelboards? Are there spare circuits on the existing main switchboard?

Answer: See detailed description below:

Main Electrical Service The existing incoming electrical power service for B606 is served from a 5kV medium voltage distribution system. A single-ended, unitized substation is located at the basement mechanical room B15. The unit substation includes two primary selective fused switches, a dry-type transformer section, and an output distribution switchboard section. The unit substation is configured in a single row alignment, with front and rear accessibility. The output switchboard supplies radial power distribution feeds for motor control centers, and branch panelboards. The motor control centers supply mechanical power loads. The branch panelboard supply building 480Y/277 Volt and 208Y/120 Volt power loads.

Unit substation configuration:

• Incoming 5kV Switchgear: Two 4160 Volt, 3-phase, 250 Ampere fused switches. Switches are primary selective with manual key interlock switching scheme. The incoming power is supplied from two dedicated 4160 Volt power circuits that originate from a manhole, located at the northeast side of building 606. The power circuits are installed in a common underground ductbank which includes two active conduit ducts and one spare conduit duct.

• Transformer Section: Dry-type class with ratings; 1000 kVA air-cooled, 1333 kVA fan-cooled, and 150 degree Celsius temperature rise insulation rating. Transformer primary and secondary voltage; 4160 Volt primary, 480Y/277 Volt secondary, and 5.83 percentage impedance.

• Output Switchboard: Service entrance rated switchboard, front aligned with fixed mounted device construction. Ratings; 480Y/277 Volt, 3-phase, 4-wire, 1600 Ampere bus, insulated case 1600 Ampere main circuit breaker, insulated case feeder circuit breakers.

Circuit breakers have solid-state electronic trip units.

Standby Power Distribution Alternate standby power is provided by a single diesel engine-driven generator (E/G) set.

The E/G is located in an underground areaway at the southwest entrance to the basement mechanical level near room B13. The standby power supply equipment includes:

• E/G, designated (IRP-1): 480Y/277 Volt, 3-phase, 4-wire, 60 Hertz, 80kW power rating at

0.8PF.

• Diesel Fuel Storage Tank: An external pedestal mounted storage tank with 300 Gallon storage capacity, is located at the areaway with the E/G set.

The E/G provides power to two automatic transfer switches (ATS) located in the basement mechanical room B13. The automatic transfer switch equipment includes:

• Transfer switch (TS-1): 480Y/277 Volt, 100A, 3-Pole, with switched neutral design. TS-1 supplies panelboard EHB, emergency fire life safety systems.

• Transfer switch (TS-2): 480Y/277 Volt, 100A, 3-Pole, with switched neutral design. TS-2 supplies panelboard H1E, medical essential systems.

Electrical Power Distribution Power distribution is extended throughout the building to feed local branch circuit panelboards. The system has been renovated over the years and shows evidence of obsolescence. Complete replacement is recommended to ensure code compliance and proper configuration to support the building mission. Motor control centers are used to supply power for mechanical equipment. Distribution panelboards are used to feed step down transformer equipment and branch panelboards.

The distribution equipment includes:

• Two motor control centers; 480 Volt, 3-phase, 3-wire, 600 Ampere

• Two dry type transformers; 480 Volt primary to 208Y/120V secondary, 150kVA, 5.75 percent impedance.

• Distribution panelboard HDPE; 480Y/277 Volt, 3-phase, 4-wire, 400 Ampere, main lug only type.

• Distribution panelboard H1E; 480Y/277 Volt, 3-phase, 4-wire, 100 Ampere, 60 Ampere main circuit breaker.

• Distribution panelboard H4E2; 480Y/277 Volt, 3-phase, 4-wire, 400 Ampere, main lug only type.

• Distribution panelboard LDPE; 208Y/120 Volt, 3-phase, 4-wire, 600 Ampere, 500 main fused switch.

• Distribution panelboard LDPW; 208Y/120 Volt, 3-phase, 4-wire, 600 Ampere, 500 main fused switch.

• Miscellaneous branch power panelboards; varies, observed quantity 25.

27. Please confirm Tackboard location and sizing found in classroom per A-466 Detail E6. At what height are display boards to be mounted? There appears to be conflict with wall finish vs tackboard, is the entire wall to be tackboard?

Answer: Tackboards have been eliminated from scope.

28. Please confirm if Tackboards which are not clearly labeled in plans are to have Frames per

101100 2.3.D, if the tackboards are more akin to wallcoverings then they would not have aluminum frames. Please confirm frame detail.

Answer: Tackboards have been eliminated from scope.

29. For the Visual Display specification, there are currently over 75 custom dimensioned markerboards/chalkboards on the project. We are confirming all sizes are possible to manufacture, as plans call for fully framed units as thin as 6" wide. Please confirm that these custom dimensions are desired, and that the design team does not wish to alter to a standard nominal sizing.

Answer: The design intent is to cover as much of the wall with boards as possible. There will be some boards that are custom sized.

30. Are duct smoke detectors shown on FA701 Detail A2 required at all 49 smoke damper locations shown on the mechanical plans?

Answer: Confirmed.

31. After reviewing the drawings and specs I can’t seem to find any information on the type of roof barrier/roof screen for RTU-1 and 2. Reference pages A-201, 207, 208, 316.

Answer: In addition to the drawings, refer to section 07 06 00, AM 2, for Ballasted Safety Rail System.

32. Will the wall tile be ceramic or porcelain in the gang toilet rooms?

Answer: Porcelain.

33. Bid drawings A-202, A-203, A-204 and maybe others reference under general notes – elevation table, reference to BCA series drawings within this set for repairs and repointing under note 1, please provide BCA drawings since we could not locate them in the set or list of drawings issued on the cover sheets.

Answer: BCA refers to Restoration or, "R" series drawings in Vol. 4.

34. For all lighting fixtures noted as “existing historic fixtures to be restored”, please provide an appropriate allowance for all bidders to carry for this scope. Please provide a fixture cut sheet or parts lists required to be refurbished so that this scope can be included in this bid.

Answer: No allowance will be provided. We require the following as per plans/spec:

Thorough cleaning, new wiring and new lamping with adjustable color temp LED light with drivers.

35. Drawing A-610 calls for a shade pocket. The specs also reference a Front Fascia. Please confirm if both are needed.

Answer: Drawing A-610 indicates jamb mounted and recessed conditions. Jamb mounted conditions will require facias.

36. Drawing E-601 shows feed to future temp chiller to be 800A coming off the new 2000A

MSBWBD-1, please confirm if this is the same feed going out to the temp chiller tap box shown on EP100.

37. Please provide size of boxes needed for the N4x stainless steel enclosures for the temp chiller connection and temp generator connection box.

Answer: Box sizes to be determined by contractor, based on amperes indicated on drawings.

38. Receptacles controlled by Lutron system in classrooms and offices: Reference: EP100 General Note 12, EL611-613. Are these receptacles to be controlled individually or can all receptacles on the same branch circuit share the same relay/switch leg?

Answer: They may be grouped by circuit or room in its entirety.

39. Please provide additional information/detail for the "Gate Behind Knee wall" noted.

Answer: The referenced gate is an accessory provided by the Lift Manufacturer.

Contractor is to provide and required blocking necessary to install.

40. Provide the ACM table for the project.

Answer: Refer to “H” series drawings issued with this Amendment. No additional information will be provided.

41. In response to RFI 77. Please confirm the UMCS is provided by the USACE and the scope of this contract is to interface the BMS to the existing UMCS and provide data points for monitoring by the UMCS.

42. We request a (1) week extension due to the feedback we are receiving from our sub-contractors to provide a competitive bid.

Answer: due 31 Oct. No change

43. Please confirm that a project includes renovations and addition will be considered renovations from the comparable experience projects list.

Answer: Relevant project experience includes new and or renovations.

44. Notice to Proceed was given as 2/15/2026. That is a Sunday. Monday is a federal holiday. Please confirm that NTP should be 2/17/2026.

Answer: Anticipated NTP is changed to 17 Feb 2026 for the purposes of the schedule submission.

45. This project referenced above, is it a single prime bid or does each trade bid separate trades?

Is there a mandatory walkthrough?

Answer: Single construction project (prime bid) and walkthrough held earlier which as not mandatory.

46. Please confirm the duration of the Guarantee / Maintenance Period is 12 months.

Answer: The RFI is unclear.

47. Please specify which existing elevator is the one that is currently operable.

Answer: "The existing elevator that is currently operable is on the east side of building 606 at column line A4.6 between AB and AC. The existing elevator on the west side of the building at column line at B9 and BB is currently not in operation