AMENDMENT 0004 060523 ROUND 1 CISA Headquarters RFIs and Responses.pdf

RFP-EQWPC-23-0001CISAHQ, Construction Services for the CISA Headquarters Building, St Elizabeths West Campus, SE WASH DC

ITEM Doc, Spec, or Detail/ Sheet COMMENT Response

1 12400

Specification Section 012400 indicates Pricing Options related to Restoration Work at

Buildings 56/57 and the Smokestacks. The Pricing Sheet issued in Volume 5 of the Bid

Documents makes no reference to these Bid Options. Please confirm that Work indicated as

Options in Section 012400 is not included in the Base Price and provide a revised Pricing

Sheet with these Options included.

Please revise the Bid Options pricing sheet to include the following: Per

Section 012400 3.1 SCHEDULE OF OPTIONS, please provide pricing for 1.

MASONRY REPOINTING at Bldg.s 56/57 and Smokestacks, 2.

PROTECTION bOARD INSTALLATION AT EXISTING EXTERIOR

OPENINGS AT BLDG.S 56/57, 3. MASONRY SURFACE FINSIHES at smokestacks (only) at Bldg.s56/57 and 4. SLAB ON GRADE (SOG) WORK

AT INTERIORS OF BLDG.S 56/57

2 Volume 1 Agreement

Paragraph I.C of the Agreement indicates the Period of Performance as 807 Calendar Days.

Paragraph 4.B. Schedule on Solicitation page 31 of 34 indicates a 3 year duration from Notice to Proceed to Project Completion. Please confirm that Period of Performance is 807 Calander

Days

Period of performance is 807 days per Paragraph 1.C of the Agreement

3 Drawing Volume 1

Drawing Sheets L-813 through L-815 as indicated by Sheet List - Volume 1 are not included in the Bid Documents. Please confirm that these Sheets are included as Sheets L- 716 thru L-

718 and reissue Drawings to reference the correct Sheet numbers.

OLIN Response: Drawings L813 through L815 should be renumbered as

L716 through L718. OLIN will correct the sheet numbers and reissue.

4 Spec 011400 and 015000

There are numerous references to Site Utilization Drawings in Specification Section 011400 and Section 015000 paragraph 1.3.E refers to "The site utilization plan contained in the

Contract Documents". We are unable to locate a site utilization plan in the Contract

Documents. Please provide.

The Site Utilization Plan is to be generated by the contractor for approval by the Government.

5 AE-350

Per Mockup Note on Sheet AE-350, Mockup is to be disassembled after testing and reassembled on site. Please confirm that at Contractor's Option, a new visual mockup can be constructed on site.

Please provide pricing for the mockup as instruted per plans and specifications.

6 AE-350

Per Mockup Note on Sheet AE-350, Mockup Structure is the responsibility of Contractor to match project conditions. Given the complexity and cost associated with determining the structural requirements to support this very large mock-up on site, we request that GSA establish a bid allowance for construction of on-site foundations and structure required to support and brace the exterior mock-up

The design team and EOR recommend that the structural design of the mock-up be produced by the contractor. The structural detailing should match the project conditions as it relates to support attachments to the wall assembly. Concrete is the super structural material so that is the project condition to match when supporting the mock-up assembly. GSA needs to determine how this is handled contractually with the CO.

7 General

Given the complexity of the project, amount of information to review and the strict requirements associated with secure dissemination of the project documents, we request a 4 week extension of the bid date and RFI deadline

FINAL RFI due date: 06/22/2023 REVISED Proposal Receipt Date:

07/31/2023

8 General We request a site visit to include access to the existing Buildings 56/57 and smokestacks Site Visit was held on 05/22/2023

9 01 24 00

There is conflicting information between the Pricing Sheet, Drawings, and Specification

Section 01 24 00 regarding the historic renovation work. The Pricing Sheet does not provide a breakout for options found in Specification 01 24 00, and the drawings indicate that this work is to be performed as part of the base contract. Please confirm if Options 1-4 per

Specification 01 24 00 are included in the the base scope of work, and not considered options. If they are not to be included in the base scope of work, please provide an updated

Pricing Sheet for options found in Specificaiton 01 24 00.

Please revise the Bid Options pricing sheet to include the following: Per

Section 012400 3.1 SCHEDULE OF OPTIONS, please provide pricing for 1.

MASONRY REPOINTING at Bldg.s 56/57 and Smokestacks, 2.

PROTECTION bOARD INSTALLATION AT EXISTING EXTERIOR

OPENINGS AT BLDG.S 56/57, 3. MASONRY SURFACE FINSIHES at smokestacks (only) at Bldg.s56/57 and 4. SLAB ON GRADE (SOG) WORK

AT INTERIORS OF BLDG.S 56/57

Section 126100 AD/SJ series, etc.

Section 126100 Fixed Audience Seating lists Hussey as one of the potential acceptable manufacturers. Hussey Seating is manufactured in China. Would Hussey seating be acceptable for use on this project, given the Buy American requirements?

No. Acceptable manufacturers should meet Buy America requirements.

Hussey was used as a BOD for aesthetics and performance.

Issued under Amendment 0004

RFI RESPONSE LOG (06/23/2023)

11 Section 142100

Section 142100 Traction Elevators lists Kone, Otis, and TK Elevator as approved manufacturers. No mention of "or equal" appears in the specification. Are we limited to these three manufacturers?

Manufacturers we determined or modified during design based on hoistway, pit or overhead limitations as well as Owner's past experiences. Other manufacturers could be considered though their spacial and product information and deviations from the BOD must be provided so they can be evaluated in detail.

Section 084400 page 24, section 2.5, D

Spec 084400 Glazed Aluminum Curtain Wall system lists a 1% attic stock but does not clarify if this is required. Please specify if the 1% reserve is required.

Yes, attic stock, indicated in specification 084400 is required, and 1% is adequate.

13 SE-106A

Sheet SE-106A should show the loading dock roof framing plan but there must be layers turned off because there are section cuts that do show the work on this page. Please provide missing framing information.

Concur – there is definitely a visibility problem on this page. Revised sheet will be provided.

AE-104; AE-104C; AI-703; AC-

904C; 102213-2.2

Specification 102213-2.2 indicates that there is a woven diamond mesh ceiling system.

There do not appear to be any details on the drawings to confirm that (see AE-104; AE-104C and AI-703). Note that the RCP on AC-904-C doesn't show a ceiling in this location. Please clarify if there is a ceiling for the wire mesh storage space.

Woven mesh "ceiling" would be integral to the caged storage system in the

Warehouse. The intent is for the storage area to have a "lid" to secure the space within the Warehouse Room.

15 AI-703; 102213-2.2

The wire mesh partition spec 102213-2.2 indicates a diamond pattern mesh system. The elevations of the mesh system on AI-703 depict it as a square system. Please confirm that a diamond pattern is what is desired.

Diamond pattern mesh is specified. Square pattern graphic is indicating extent of application only.

16 AF-1003AB : AF-1002AB

Elevator lobby LL2c30 is tagged to be flooring type F-04B Terrazo but shaded like F-01B polished concrete. Which is the correct finish for that location.

Shading of F-01B, concrete flooring at LL2.C30 elevator lobby is correct.

Tag to be updated to F-01B.

17 SE-106A; SE-632

Sheets SE-106A indicates to see 4/SE-632 for the monotrail trolley system. 4/SE-632 just has details for the anchors. Please provide required details for the trolley system.

Refer to detail 1/AE-407 for monorail trolley detail. Structural anchoring detail to be used in conjuction with architectural detail. BOD is based off of

ProBel monorail trolley system, but final details to be coordinated delegated design of selected manufacturer. Per General note DI-1 on SE-001, window washing systems are a delegated design item to the Contractor. Delegated design items and loads imposed are to be submitted to A/E for review and coordinated by the GC.

18 SE-632

Detail 4/SE-632 has a detail for davits. There do not appear to be any davits called out on the plans. Please confirm none are required.

There are no davits on this building. Facade access will be performed from roof anchors using bosun chairs. Refer to sheet AE-206 for facade access types.

19 L-101; L-712; SS-311

The fall protection brackets along the site walls (L-101 typ) have several issues. The detals for the brackets on 8/L-730 indicates the plates are stainless steel. The structure version of the detail on 5/SS-311 indicates the bracket is a galvanized bracket. Please clarify which material is correct. If the material is stainless steel, please clarify the material type that is required. Also, there doesn't appear to be any layout or spacing indicated for the brackets.

Please provide the required bracket spacing.

Confirmed. Fall arrest brackets to be stainless steel. Refer to spec section

112423 for information. Refer to drawings 2 and 4/AE-430. Per spec section

12423, fall arrest system to be delegated design by awarded manufacturer, and design/equipment/anchoring to match design intent and meet industry standards and performance specifications.

20 RFP - Factor 1

Considering the limited number of projects over $200M that meet the scope and complexity listed under Factor 1 for this project, such as historic site and/or historic campus, please expand the relevant project completion timeframe from six (6) years to twelve (12) years.

Revised under Amend 0001 4/27/23

21 RFP - Factor 2 Please confirm CPARS evaluations are acceptable in place of the PBS Past Performance

Questionnaire.

Other forms of evaluation are acceptable as long as the forms contain the same information as is requested on the PBS Past Perfromance

Questionnaire.

RFP, Page 7, Section II, II.A

Proposal Contents

Please clarify if offerors should submit the following items within the Price Proposal or if they should be submitted as separate pdfs: Representations and Certifications; Standard Form 24, GSA Form 527.

The Technical Proposal should contain only information relative to the

Technical Evaluation Factors. The Price Proposal package should consist of all other required information and documentation.

23 AE-200

Drawing AE-200 specifies CIM 1000 for the Cistern Waterproofing WP-03. Please confirm if

GCP Silcor or Henry FX600 could be used in lieu of CIM1000.

Alternates are mentioned within the 071418 project specifications. Other alternates may be considered, but application methods and cost will vary and will need to be approved by design team.

24 SE-103A (typ); SE-706

The elevator divider beam in plan (see SE-103A for example) are only indicated as DB. The sheet notes confirm this, but do not indicate what the member size is that is required. The details on SE-706 indicate to see the plan for the size. Please provide required member size.

For bid provide HSS203.2x101.6x9.5 (HSS8x4x3/8). Beam size to be reviewed with elevator loads but this is expected to be adequate to support typical elevator rail reactions

25 SE-706; SE-104A typ

The elevator guide rail supports are indicated on most of the plans, see SE-104A for example.

The notes on 2/SE-706 indicate that the supports are only required for floors greater than

4.2m. The floor to floor height for these elevators is only 3.8m. Are we required to carry the guide rail supports since they are shown, or only carry them at floors greater than 4.2m?

Please verify.

Rail span capabilities are specified by the elevator and can vary per manufacturer. The note for 3.8m for max rail span is intended to capture the added scope where backup steel may be requried. Where the floor to floor does not exceed this value, it is assumed the rail can span vertically between floors without backup steel. Ultimately, the GC is coordinate steel requirements with the elevator manufacturer.

26 SE-107B

The NE Roof system on SE-107B has a section in the short direction, but nothing in the long direction. Is there a steel plate and closure system along the edges in the short direction, similar to the long direction? Please clarify.

Contractor to refer to elevation 2/SE-700 and sectional details 6-8/SE-701 tagged in the elevation for structural details.

27 SE-107B; SE-703

The plan view of the NE Roof on SE-107B appears to show the HSS framing going over the top of both of the concrete curbs. The section on 1/SE-703 shows the beams only bearing on the outer wall and connecting to the face of the inner curb with an embed plate. In addition, the plan shows the deck overhanging the curb on the main roof side, but the detail shows it stopping at the end of the concrete curb. Please confirm detail 1/SE-703 is correct for both issues.

Confirmed. Steel beam to frame into side of concrete curb.

28 Please provide a design model if one is available for use by the contractors? Only after contract award.

29 AI-802

Note 4 on the door schedule (AI-802) notes that any door within an STC rated wall must meet that STC rating at a minimum. Only 27 doors on the door schedule are shown to be STC rated. Please confirm if these are the only doors to have this STC rating. Please list other doors required to be STC rating if there are any.

The doors shown to have specific sound ratings are within the secure boundary walls and thus subject to more strigent and regulated secure space guidelines. All other typical doors to follow note 4 of the door schedule sheets.

30 CS-101, Specifications

We were provided a specification section for Asphalt Paving and the Graphic Legend on CS-

101 has hatching for Asphalt. However, I do not see where this hatching is used on the plans.

Please provide further guidance for where asphalt paving is needed on this project.

The asphalt paving in the legend on CS-101 is a hold over from a previous phase of the design. No new aspahlt paving is proposed. The Asphalt

Paving specification can still be utilized for aspahlt patching for utility work in existing roadways.

31 051200-1.5.C

Section 051200-1.5.C indicates that there is a sophisticated paint endorsement required for the project. This seems excessive given the fact that the main frame of the buiilding will be concrete. Typically the structural elements will likely be done by the MM subcontractor on a concrete frame. Mary of the bigger MM subs can meet the BU and CSE AISC certifications, but the sophisticated paint endorsement is not one that these subs typically carry. Please confirm the sophisticated paint endorsement can be waived.

While the structure is primarly CIP concrete, there are key features and elements that are framed in steel and are critical for life safety and building performance. The requirement is not permitted to be waived.

32 AE-002

There are no specs that indicate either spray applied fireproofing or inumescent fireproofing for the project. Looking at AE-002, the building is type 1B construction with 2hr floors and 1hr roofs. Will the steel framing at the pedestiran bridge, the loading dock or the roof popups require fireproofing? Please verify.

The pedestrian bridge and covered loading dock areas are considered

"canopies" separated from the building with independent structures, so do not require fireproofing.The framing for the roof pop-ups are not considered primary structure for the building and do not require fireproofing.

33 055000-2.5.J; AE-520

Specification 055000-2.5.J indicates that stair nosings are required for the project. The details for the stairs on AE-520, do not have any nosings indicated. Please confirm if the stair nosings are required.

Stair Nosings are required at Concrete Treads. Provide as specified.

34 07 42 50, 03 45 13

03 45 13 1.2-C indicates that the Terracotta for the Division 07 architectural Terracotta is to be from the same source as the terracotta clad into the precast panels. As these scopes will be performed by different subcontractors, can the single source requirement apply only to the terracotta within either spec section.

Single source for terracotta on the entire project is required.

35 AE-111; AE-412; SE-113

There are several antenna systems on the roof plan AE-111. They reference to you to 5 and

11/AE-412. The drawings inply structural work is required, but when you got to the upper roof plan on the structural drawings (SE-113), the only real reference for the supports is a note that indicates that the "lateral connection to pip-up slab for roof antenna (by others)". Please provide details for steel supports for the different antenne systems on the roof.

Refer to detail 7/SE-702 for pedestal mounted antennas. Refer to detail

7/SE-704 for steel post/base plate mounted antennas.

36 11 24 23

Spec section 11 24 23-2.1.A lists only 4 acceptable manufacturers (Pro-Bel, Spider, Summit and Weatherguard). It doesn't make provisions for other manufacturers that can provide comprable systems. Typically the Govt does not limit competition unless it has a good reason to do so, and will accept any manufacturer than can meet the performance requirements.

Please confirm that we may utilize any manufacturer that complies with the performance requirements.

Yes. Other equal manufacturers, such as Tractel, can be accepted subject to review and approval. Per spec section 12423, fall arrest system to be delegated design by awarded manufacturer, and design/equipment/anchoring to match design intent and meet industry standards and performance specifications.

37 11 24 23 Spec section 11 24 23-2.3.B.3 indicates to provide full body harnesses. It doesn't clarify how many the customer wants provided. Please clarify quantity.

The specification describes the type of full body harness that is acceptable.

Thus, the Government is not clear as to why there is a question as to quantity. Please clarify.

38 11 24 23

Spec section 11 24 23-1.2.B calls for fall arrest anchors tied into the precast wall panels.

Looking at the elevations of the building, there do not appear to be any sabilization anchors or the like identified on the elevations of the precast wall panels. Please confirm that they are not required, or provide elevations showing the required locations/layout.

Unanswered Round One RFIs' will have responses by posting of the Round

2 RFI responses

39 11 24 23

Spec section 11 24 23-2.6 for the monorail system doesn't clarify the trolley type. Based on the fact there doesn't seem to be any power requirements on the electrical drawings, its probably a manual trolley system. Please confirm trolley type and any power requirements that may be required.

Manual trolley confirmed. No power requirements. Trolley type based on

ProBel manual trolley as BOD. Per spec section 12423, fall arrest system to be delegated design by awarded manufacturer, and design/equipment/anchoring to match design intent and meet industry standards and performance specifications.

40 CS-120; 32 31 00

The fencing and gates for the project as shown on CS-120 indicates that it is an interim level

5 security fence. Spec section 32 31 00 -1.2 indicates that there are 2 types of fencing. It is assumed that since this is interm fencing it is probably type 2 (galvanized chain link). If that is accurate. Where is the type 1 utilized on the project? Please clarify.

The fencing shown on CS-120 is Type 2 per the specifications, also refer to section 1.5.B, and is to match other interim Level 5 fencing around the CUP.

Type 1 is not proposed with this project. Also refer to CD-101 for a separate detail/spec for a temporary security fence to be used around the CUP.

41 SE-001; SE-151l SE-772

The structural notes on SE-001 indicate that there is a toughness requreiment in note SS-9 which indicates that truss members are required to meet this requirement and the material shall be ASTM A709M. This is a WF grade of material. The trusses for the bridges are drawn as HSS members per SE-151 and SE-772. The HSS is indicated to be ASTM A500M, grade C per SE-001. Please confirm this is correct given the requirements for toughness.

The note is not intended to change grade of material but to specify minimum

CVN toughness requirements. For the exterior truss member, provide steel with CVN thoughness per 40 FT-LB @ LAST BUT NOT HIGHER THAN 40

DEG F

42 AI-804

Opening LL1136 is identified in door schedule AI-804 as a HM door in a SF-3C framed demountable partition opening. All other door types near this for similar rooms are WD doors. Should opening LL1136 be a WD door instead of a HM door?

Correct, Door LL1136 should match WD Doors scheduled for CR Rooms.

Sheet AI-804 will be updated to reflect such revision.

43 AI-8xx, Section 081416 Drawing AI-800 for SF-3A, 3B, 3C, 3D and 3E show a basis of design system which is to achieve STC-45 at offices and STC-51 at collaboration spaces. The WD doors for these areas on the Door Schedules do not appear to show any STC ratings at all. Please confirm if the WD doors are not to be STC rated.

The doors shown to have specific sound ratings are within the secure boundary walls and thus subject to more strigent and regulated secure space guidelines. Door assemblies at Offices and Collaboration Spaces to follow note on AI-800.

44 SE-773; AE-455;

At the connector bridge from LL5 to the existing garage, there are steel plates on the outside face of the bridge trusses (see 4,5/SE-773 and 3/AE-455). The quantitiy of these plates is not clear. It appears on the architectural details that the plates are 1/2" thick and come 4 1/2" off the face of the trusses. Are these plate a continuous plate, or are they a small plate spaced at a specific distance OC? If they are small plates at a specific distance, please clarify the size of the plates and spacing.

Detail 3/AE455 indicates these plates are continuous. Eyebolts are projected to be relatively closely spaced – actual spacing will need to be coordinated with the mesh manufacturer.

45 SE-700

The connection detail for the HSS101.6x101.6x7.9 for the portals is indicated to be 4/SE-703.

This is the kicker brace for the overrun shafts at the roof. Please confirm the connection details is 4/SE-701.

Confirmed.

46 SE-700

At the roof level of the portal detail 7/SE-700 is cut. Is the spacing of the plates at each of the vertical posts? Its not clear how how many there are. Please verify.

Only two connections are intended for each horizontal member with one connection at the beam/gridline and one connection towards the end of the member connecting to the edge of slab. At the roof, the connection at the beam is per 7/SE-700 and the other connection at the end is 8/SE-700. At the other levels, the corresponding connections are 4/SE-700 and 5/SE-700.

Section 013100, Section

011000

Section 013100-1.6.A.15. indicates the Contractor shall provide an on-site, full-time BEXCx

Coordinator to coordinate exterior envelope activities, but makes no mention of costs associated with hiring a BECx agent for commissioning, nor do the Contract Documents include a Section 019119 for BECx requirements. Please confirm the following:

1) All costs associated with a 3rd party BECx Agent shall be the Government, or

2) Provide a BECx specification including testing requirements if required by the Contractor.

GC will not be responsible for commissioning services. Commissioning

Services will be a separate contract.

48 AI-700, Section 115213

Drawing AI-700 shows a mounting detail for a projection screen. In additiona specification

115213 is included for "Projection Screens"; however, no other callouts or locations are provided on the architectural drawings. Please provide callouts for these projection screens or confirm they do not apply to the project.

Location and specifications for projectors are called out in the Technology

(TG) Drawings. Architectural drawings will be revised to clarify symbols where projectors occur.

49 Section 102219

Section 102219 calls out Acousti-Clear by Modernfold as the basis of design for the

Demountable Partitions. Would Transwall be an acceptable manufacturer? Their system can achieve STC 46 with a 1/2" double-glazed system.

Modernfold as the BOD was selected because of their high STC 46 capabilities. Any alternates would need to match or exceed this requirements of performance.

50 Section 111414, SY-300

Section 111414 specifies Turnstiles for the project, but the Turnstile Installation

Responsibilities Matrix on drawing SY-300 only calls for rough-in conduits beneath floor, junction and pull boxes, penetrations, sleeves, firestopping by the General Construction

Contractor. Please confirm that the Turnstiles themselves will be furnished and installed by the Owner.

[CA - 05.17.23] Not confirmed, turnstiles will be furnished and installed by the General Construction Contractor. SY-300 and SY-311 identifies the specific security and electrical rough-in / pathway requirements required of the General Construction Contractor (or Div. 28 Security sub-contractor under the GC).

51 AI-803

Door LL3345 is listed on the door schedule AI-803 as a Hollow Metal Sound door, but it has set 22 per both door schedule and spec set. Set 22 is for a Glass Door. Please clarify what hardware set is to be used for Door LL3345.

Set 59 is correct as listed on Hardware Spec. Sheet AI-804 will be updated to reflect such revision.

52 Ai-804

Door LL1571 has set 57 per the door schedule AI-804, but is listed in the hardware spec as set 59. Set 59 appears correct since this is a Sound Door. Please confirm this door should have hardware set 59.

Set 59 is correct as listed on Hardware Spec. Sheet AI-804 will be updated to reflect such revision.

53 AE-508

The material type for the railings at Stair 8 and 9 are not clear. Details 9,11/AE-508 indicate steel railings, but moving down to 12,13/AE-508, the railing material is indicated to be aluminum. Please what material the materials should be.

Design intent is Matte Black Alum handrail and post in Stair 9. and MTL-01

Post and handrail in Stair 8.

54 323300; L-102; L-850

Bollard type 4 on L-102 is indicated to be a vehicular rated bollard and to see L-850 and structural specifications. There do not appear to be any details on the structural drawings and

2/L-850 doesn't really show any additional information. The governing spec 323300-Part

2.A.6 doesn't have any additoional information either. Please provide details, required vehicle ratings, bollard size and any decorative cover information that is required.

Bollard Type 4 are confirmed to be vehicular rated. Refer to structural drawings for sizing and reinforcing of the footing for each Type 4 bollard.

Type 4 bollards will not have a decorative cover. They are to be painted to match Bollard Type 3 at Loading Dock. Reference Structural detail 12/SE-

304 for vehicular bollards. Bollard Type 3 is connected to building structure, Bollard type 4 is connected to its own individual pile.

55 323300; L-104; L-850

Bollard type 1 on L-104 has a detail 01/L-850 and spec 3323300 indicates all of the cover information, but there doesn't appear to be any information on the bollard, including wall thickness and overall depth. Please provide missing information.

Refer to details on SE-304 for vehicular bollard structural support and size of the interior HSS. Cover to be as shown in 01/L850 and in Specification section 323300.

56 L-101; L-102; L-807; L-808 Some of the site benches on L-101 and L-102 have call outs of L-807 and L-808. These sheets do not appear to have been issued. Please provide these sheets.

For Benchs G & H refer to L807 For Bench J &K refer to L808 in the IFB drawings. Our record shows, sheet L807, 808 were included in RFP package.

57 AI-825

The countertop support framing on AI-825 doesn't seem to have any member sizes associated with the framing. Please provide the required HSS, angles and plates for the tube framing. Also are these just posts or will they be connected horizontally? Please clarify.

Basis of design is Scafco's Pony wall, specified for the Security Desks.

Typical 34" H x 3 3/8" W x 14" L baseplate. 97mil support stud and 200 mil base plate. Located at every support angle, minimum.

58 102113

The toilet partitions are indicated to be ceiling hung per 102113-2.4.H, but there doesn't appear to be any details showing the required framing. Please provide required framing detail(s).

For steel support above, min C8x11.5 can be used. Provide lateral bracing to structure above as required. Contarctor shall submit engr calculations with selected manufacturer.

59 AE-104A

There are numerous pipe bollards at the exterior of the loading dock on AE-104A, but there isn't any protection members of the columns, doors, walls, etc in the staging area inthe dock.

Pleaes confirm that none are required, or provide required system layouts.

- Provide (8) HDG 48" tall - from finish floor - L3x3x1/4 angles with ½”x3” studs at 10” OC vertically at all exposed corners of columns F.2/6 and G/6.

- Provide (4) HDG C8x18.5 channels at door jambs - full height - for coiling doors LL1420C and LL1420G

60 AE-470

On AE-470, there is a detail for the entry bollard with card reader. There are also entry bollards for radiation detection. These bollards do not appear to be detailed. Are they the same as the typica card reader bollard? Please clarify.

Radiation Detectors are detailed on Security Drawings, please refer to sheet

SY-314

61 AE-357; AE-441

There are two access hatches/manhole covers for the Reclaim Water Cistern (see AE-357 and AE-441). In review of the structural, plumbing and civil drawings there doesn't appear to be much more information on what the covers should be. Please clarify if these are manhole covers or hatches, and if hatches, clarify a BOD so the correct product can be sourced.

The access into the cistern will be by access hatch. The mechanical contractor for the cistern should supply the hatch and coordinate hatch locations in the CIP cap with the locations of the submersible pumps located within the cistern. BOD: U.S.F. Fabrication Inc. Hatch W-APS 36x55 -

Aluminum, locking, compression springs, and safety grate. Based off of compatibility with BOD submersible pumps by AMES Inc.

62 AE-358

The access ladders to the Utility Vault on AE-358 do not have a material called out. Please confirm these are aluminum ladders with a mill finish similar to the Reclaim Water Cistern, or clarify material type.

Detail 2/SE-161 calls these ladders out as HDG steel.

63 AE-358

Similar to the Reclaim Water Cistern, the Utility Vault has 2 manholes covers/frames. Please confirm they are manhole covers as refered to and not access hatches of some sort and verify if there any sort of rating requiremnets on the assembly.

Access into utility vault will be by traffic rated manholes. Refer to civil specifications for type and rating of manhole covers within roads. Detail 7/SE-

161 calls these out as manhole covers.

64 SE-103A

On SE-103A, there are two sections labeled 2/SE-16. There doesn't appear to be a sheet SE-

16. Please provide or clarify correct detail.

The correct detail reference here is 2/SE-316.

65 CS-120

There is a vehicle barrier indicated on CS-120 but there doesn't appear to be any additional details on the barrier including foundation requirements, loop detector layout gate arms (if any). Please provide additional details for the barrier system.

Refer to specification 32 40 07.

66 133433; AE-360

There doesn't appear to be any foundations for the mobile trailer at the checkpoint on AE-360.

Is there some sort of slab or permanent foundation system that will be required? If so, please provide details.

Refer to Detail 2/SS-503

Per Art. 1.8.A. Deliver trailer to the campus and locate on concrete pads and/or piers.

67 133433; AE-360

Please confirm that the equipment (metal detectors, turnstiles, etc) at the mobile trailer on AE-

360 will be by the Owner.

[CA - 05.17.23] Not confirmed, equipment at mobile trailer will be by the

General Construction Contractor.

68 AE-360 The Water AND Fire Services space on AE-360 seems to be a separate space from the mobile trailer. There aren't any details for this space. Please provide details.

Water and Fire:

Per Spec Section 133433, Art. 2.3.O: Provide accessory building (water/fire service room) attached to the trailer. Refer to 2.3.O.1 and 2.3.O.2 for systems and services.

69 133433; AE-360

There are countertops indicated in the mobile trailer on AE-360. There do not appear to be any specifics in 133433, including required material type for the countertops. Please provide required material and countertop thickness.

Per Note 2 on AE-360: Counters and Bathroom Accessories are by Trailer

Manufacturer, from Standard Selections.

70 AE-360

There is a concrete foundation indicated for the prefab guardbooth on AE-360, and it indicates to see the structural. There doesn't appear to be any specific details for this location on the structural drawings. Please provide details.

Refer to Detail 1/SS-503

71 AI-817, AI-617

Detail 2/AI-817 seems to imply there are two horizontal operable partitions, one in the LL2

MPR, and one in the L1 Conference Room. The LL2 MPR doesn't appear to show a partition. Please confirm the only horizontal operable partition is in the L1 Conference Room.

The LL2 MPR does not require an operable partition. L1 CR4 is the only location for a horizontal operable partition. L1 MPR has a vertical operable partition covered under detail 1/AI-817. The title of detail 2/AI-817 will be revised to remove reference to LL2 MPR.

72 AI-900, Section 102239 Section 102239 paragraph 2.3.C.1 calls for fabric finish as indicated on Finish Schedule.

Please identify which finish on the Finish Schedule is used for the Vertical Operated Partition.

Designtex "Gamut"

73 133433; AE-360

Is the intent for the modular trailer on AE-360 and in 133433 to be a purchased item that the government retains, or is the intent to lease the trailer? If the intent is to lease the trailer, we will need to know how long the government intends on keeping the trailer. Please confirm.

Intent is for the Government to purchase the trailer to be built per specification secetion 133433 along with a five year warranty.

74 Section 020185 - 1.9 - A.2

Section 020185 1.9-A.2 states to verify existing conditions prior to submitting a bid with regard to the building 56/57 remediation work. Could a second site visit be established to allow bidders to understand the existing conditions of building 56/57?

A second site visit was held on May 22, 2023.

75 Section 102219

Section 102219 calls out Acousti-Clear by Modernfold as the basis of design for the

Demountable Partitions. Would Teknionbe an acceptable manufacturer? Their Focus and

Altos systems can achieve STC 45.

Acousti-Clear by Modernfold as the BOD was selected because of their high

STC 50 capabilities. Any alternates would need to match or exceed this requirements of performance.

76 6/AI-605, 18/AI-605

Detail 19/AI-605 calls out glass markerboard G-12 "where occurs" in Room Type CR03A. The typical detail for Room Type CR03A, 6/AI-605, does not include any mention of Detail 18.

Please confirm that Room Type CR03A does not include GL-12 glass markerboards, or provide callouts in the rooms where those markerboards are required.

Enlarged plan 6/AI-605 is on an exterior window, therefore GL-12 does not occur at that location. Where a CR03A is located interior to the plan/not on a window line, it will receive GL-12

77 AI-608, AF-1003AB

Details 2 and 3/AI-608 provide a callout for GL-13, which is to be a full-height, ceiling-mounted, double sided magetic glass markerboard; however, the elevations show appear to be pointing at a trim on the very outside of the page and not a separate whiteboard. Please clarify the extent of GL-13 as shown in the elevations of the rooms where it appears.

Please refer to details 11 & 12 AI-825 for GL-13 condition. GL-13 is dimensioned in the floor plans at the Open Team and Open Huddle rooms.

78 AI-900, AI-614

Callout W-05 on the Interior Finish Schedule refers to a Tackable Cork Wall; however, the elevations shown on 5/AI-614 and the floor plans appear to show a tile backsplash material.

Please confirm whether this W-05 callout as shown on the elevations and floor plans refers to the Tackable Cork Wall or a type of wall tile.

Restrooms should have W-04 tile. Breakroom should have W-09. There should not be W-05 cork in the restrooms or break rooms.

79 AI-601, AI-602

It appears the layouts for Zone A and Zone B restrooms are onthe incorrect pages - please confirm this is a typo or revise the drawings to reflect the correct bathroom layouts.

Lower Level Zone B Restrooms (between lines 10 to 11) plans are provided on sheet AI-600

Level 1 Zone B Restrooms (lines 10-11) plans are provided on sheet AI-601

Level 1 Zone A Restrooms (lines 5-6) plans are provided on sheet AI-602

80 AI-600, AI-700

TA-14 on drawing AI-600 is called out to be a frameless mirror; on AI-700 it is shown to have a frame. As the other mirror types do not have frames, please confirm this mirror type does not have a frame.

Per Spec Section 102813, mirrors are specified as framed. The TA

Schedule on AI-600 will be revised to match the Specifications. AI-700 is intended to note the accessible mounting height for the mirrors.

81 AJ-310

Detail 7/AJ-310 indicates steel support framing for the mechanical units. There doesn't appear to be any layout or member sizing for the framing. Please provide required layout and framing sizes.

Per mechanical, only fans are planned to be on the roof and those will be on curb and wall mounted. Fans will be self-supported wtih bracket provided by the HVAC contractor. No steel steel support is required as shown in 7/AJ-

310 for the units

82 SJ-101; SJ-103

There are notes on SJ-101 and SJ-103 that indicates to remove and replace a certain percentage of steel. In order to price this accurately we would need to know where the members are located and what sizes they are. Please clarify.

Per notes in the drawings, due to limited access, a comprehensive survey has not been performed to date. Silman provided a quantity estimate to be used for pricing to account for this unknown. Until access is provided, which includes demolition of existing MEP infrastructure and setting up scaffolding or providing other means of access, exact steel locations cannot be identified.

83 SJ-101; SJ-103; SJ-501

Similar to the beam replacement, there are notes on the structural plans and details on SJ-

501 that indicates to reinforce the existing steel framing. In order to price this correctly, we would need to know the size of the members that are recieving reinforcing and the extent

(length) the reinforcing is required. Please clarify.

Refer to response 82

84 SJ-501

The beam reinforcing detail W1 on SJ-501 indicates "if additional reinforcing is required, add plate to other side of web". We would need to know which members this would be required on in order to price this. Please clarify.

Per notes in the drawings, due to limited access, a comprehensive survey has not been performed to date. Silman provided allowances to be used for pricing to account for this unknown. Until access is provided, which includes demolition of existing MEP infrastructure and setting up scaffolding or providing other means of access, exact steel reinforcement locations cannot be identified. Silman can provide a quantity estimate for pricing purposes.

85 SJ-501

What happens at the connections for the beams that are reinforced. Do the connections need to be reinforced in any way? There do not appear to be details for that. Please clarify and if needed, provide locations and details.

The condition of existing connections will need to be reviewed as access is provided for further observation. Silman can provide a quantity estimate for pricing purposes.

86 SJ-201

Key note 41 on S-201 indicates that 50% of the steel girts need to be replaced. Its not clear what member sizes and types these are. Please clarify.

The size of the existing members is unknown due to limited access. Per keynote 41, the intent is to replace in-kind. However, exact member sizes cannot be determined until access is provided.

87 AJ-120; AJ-140

The crossover ladder between Bldgs 56/57, shown on AJ-120 and AJ-140 (see key note 40) do not appear to have any details or parapet height to deterimine the ladder height. Please provide section cut and parapet height information.

As stated in the note, dimensions including parapet height to be verified in field. There was no access to the roof during the design. Ladder will be galvanized steel.

88 SJ-103; SJ-104

Key note 87 indicates the maintenance access ladder on SJ-103 and SJ-104. It indicatets that there will be "local reinforcment to be required at existing floor framing below". We need details, layouts, extents of this work in order to price this. Please provide design.

Per keynote 87, the access ladder and landing platform are delegated design elements (by others). See architectural drawings for additional information. Reinforcement of the existing structure will need to be coordinated with ladder and platform design.

89 05 50 00; AE-520

Spec section 05 50 00-2.5.G indicates to fabricate the railings from steel tube and NOT from pipe. 2/AE-520 indicates that the grip rails are are to pipe. Please clarify which is correct.

Handrails to be Pipe Rail as noted and dimensioned on 2/AE-520.

Art. 2.5.G of Spec Section 055500 will be revised to confirm Steel Tubes are scheduled at Guardrail components and Steel Pipes are scheduled at

Handrails.

90 AE-520

The typical stair railing details on AE-520 indicate a post installed angle attachment for the railings. May embed plates be utilized for easy of installation? Please verify.

Installation of embed plates on stair (stringer) ends shall be acceptable provided they do not protrude beyond the face of the stringer and are not visible behind the steel angles supporting the steel post. Contractor to ensure the appropriate placement of plates are coordinated between the affected trades.

91 AE-503

Stair 4 on AE-503 indicates a horizontal railing at level 2. Please confirm this is a drafting error and the railing is meant to follow the stair to the landing below.

The horizontal railing is a drafting error. A revised Section 4/AE-503 will be included in IFC Documents.

92 AE-011, Spec 10 44 00

The Life Safety plans do not provide any indication as to which FEC are semi-recessed and which FEC are fully recessed. Please clarify which cabinets are to be semi recessed and which are to be fully recessed.

All FECs are to be semi-recessed. Refer to Detail 5/AI-815.

93 Spec 10 56 13 There are no callouts for Metal Storage Shelving on the architectural plans. Please provide locations for this shelving or confirm it does not apply to this project.

The metal shelving layout for Room LL1440 is shown on sheet AE-104. Per

Spec Section 105603 provide 20 Type A (120" width) and 15 Type B (96" width) Units.

94 L-101, L-102

Please clarify which callout represents a bollard and which represents a flagpole on the Civil plans - for example, on drawing L-102 there are callouts specified to be bollards that resemble the symbol for "flagpole"

OLIN Response: There are 3 flagpoles shown on L-104, located east of the

East pedestrian Entrance of the building on a CIP concrete pad. The symbols will be revised to clarify symbols for each bollard type and the flagpoles.

95 Vol 5 Page 2 - CLIN schedule - this does not align with the Options specification section - Are option pricing not required at this stage

Schedule of Options is included on the Pricing Sheet to be submitted with the SF 1442.

96 SF1442

Section 11 of SF 1442 indicates the performance period is 807 calendar days after receipt of the notice to proceed. This duration is reiterated in section 1.C. of the RFP. Later in the solicitation, under the Factor 4. Management Plan and Schedule section paragraph 4.B.

indicates the project milestones are expected to be: Notice to Proceed – September 2023;

Substantial Completion – February 2026; Project Completion – September 2026. Using the months listed in 4.B., the duration from Notice to Proceed to Substantial Completion is ~884 calendar days. Please confirm which duration is correct.

Substantial Completion shall be 807 calendar days from the date of the

NTP; Contract Completion shall be 60 calendar days from the Sustantail

Completion date.

97 SF1442

Re: Performance Period… There appears to be a discrepancy between period of performance identified within Volume 1. The RFP's Agreement (page 4 of 41) states a duration of 807 calendar days from NTP to Substantial Completion + 60 cal days to Final

Completion. The RFP's Solicitation (page 31 of 34) states an NTP of 9/2023, substantial completion of 2/2026, and a final completion of 9/2026... These durations are greater than the

807 + 60 in the "Agreement". Please advise which durations are to be used.

Substantial Completion shall be 807 calendar days from the date of the

NTP; Contract Completion shall be 60 calendar days from the Sustantail

Completion date.

98 General

We have received input from subcontractors requesting additional time due to other government projects bidding. Please consider revising the bid date to June 12 and RFI cutoff date to May 22

Revised under Amend 0003. FINAL RFI Due Date: 06/22/2023; REVISED

Proposal Receipt Date: 07/31/2023

99 Vol 1

Is it possible to schedule another site visit for the purpose of accessing the interiors of building 56/57? Access to these buildings was not possible at the previous site visit. This will be critical in assessing the scope of work for these buildings as the dwgs do not depict the existing conditions to the extent needed to price the work. (i.e., no plumbing piping or fixtures to be demo'd are shown on PD-110, but the notes indicate the requirement to remove all piping and fixtures). Page 6 of 34 - I.G. FAR 52.236-27 Site Visit - Please provide one (1) or more additional site visit opportunities.

Site Visits held on 04/17/2023 and 05/22/2023

Specification 034513

Architectural Precast Concrete

Section 1.1-E indicates Alternates: refer to Division 01 - Alternates for the description of work in this section affected by alternates. There is no alternates section included in the

Specifications Volume 1. Please provide an alternates specification if alternates are required.

There are no alternates for this section.

101 011000-1.6G

011000-1.6G Hazardous Materials - calls for Contractor to perform its own survey to support its construction requirements. Provide government survey indicating amount and extent bid is to be based on.

Unanswered Round One RFIs' will have responses by posting of the Round

2 RFI responses

102 011000-1.6H 011000-1.6H - references Division 02 Section "Demolition, Historic Removal and Dismantling" for additional requirements - provide this specification

We will correct the reference as that section was used during the early sitework clearing. Specifications specific to Building 56/57 apply to this scope of work.

103 011000-1.6K 011000-1.6K - Clarify maintaining all existing landscape on site is within our LOD.

OLIN Response: All but 1 tree within the Limit of Work are to be removed so will not need to be maintained. That one tree and several others immediately

East of Building 64 are close to the Limit of Work and are along an existing roadway and will need protection - refer to L-031. Additionally, refer to L-500 through L-504 for areas where the existing soils are to remain and be amended before planting. These soils need to be protected from compaction during construction.

104 011000-1.6K2 011000-1.6K2 notes Division 01 Section "Temporary Tree and Plant Protection" Provide this specification

OLIN Response: Refer to specification Section 311300 - Tree Protection and

Arboriculture

105 011000-1.6L

011000-1.6L - Permits - advise the status of the General Permit - has it or will be issued prior to bid (section2), or is it ready for the Contractor to pay and obtain or is there an anticipated duration of time we should include in the schedule prior to work starting on site. to obtain.

Contractor shall be responsible for obtaining any necessary permits from the

District of Columbia. However, due to work completed in the "Early Site

Package", there is an active Erosion & Sediment Control Permit

#BCNIV2100067.

106 011000-1.6P 011000-1.6P - Confirm this paragraph applies - it is referencing design build and addition drawings in the Narrative. Clarify

We will edit this section to remove "Design-Build". This is a DESIGN-BID-

BUILD .

107 011400 -1.1R 011400-1.1R - If the government is going to charge for utility consumption, please provide the rates the base will charge.

FY24 rates are not available at this time. Nevertheless, the contractor will be charged the prevailing utility rates as determined by the repsecitive utility.

108 Architectural Drawings

There are interior widows, punched windows, storefront and curtainwall shown on the drawings; however, there are no window schedules provided in the bid documents. Please advise.

Refer to AI-800 for the glass partition frame system types. There are elevations of the typical interior storefront systems that correspond to tags on the floor plans. "SF3A", "SF3B", etc

109 Drawing L-210

Drawing L-210 shows an “Interim Level 5 Security Fence … see Civil Dwgs for Utility

Coordination”. Please confirm that this fence system is to be installed by the end of the project and does not need to be installed prior to the start of the sitework and building construction.

Refer to the response for Item 111. The extents of the Level 5 Security should be in place AFTER construction.

110 Drawing CS-120 Drawing CS-120 shows two vehicle barriers adjacent to a security trailer. Are these the items referred to in specification section 324007?

Yes.

111 Drawing CS-120 and CD-101

Drawing CS-120 has a note that says “Remove Interim Level 5 Fence and Temporary

Construction Fencing as Shown” and points to areas around existing buildings 52, 56, and 57.

Drawing CD-101 points to fencing with a note “Temporary level 5 fence to be in place only during construction”. These drawings do not appear to be fully coordinated. Please clarify the intent of what fencing is considered temporary during construction of this project, what Level 5 fencing is to be removed during this project, and the required timing…