33330225RT0010018 Amendment 0003.pdf

(x)

33330225RT0010018

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1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR

OFFER. If by virtue of this amendment you desire to change an offer already submitted , such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

x

OCON

Washington DC 20013-7012 PO Box 37012

MRC 1200

OCON

OCON

Washington DC 20013-7012 PO Box 37012

MRC 1200

SMITHSONIAN INSTITUTION

220010904/23/20250003

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended , by one of the following methods: (a) By completing

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

04/01/2025

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

Christine Grant

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

A. The Solicitation Number cited above, NMNH: Renovate Baird Auditorium, at the National Museum of Natural History (NMNH), located in Washington, DC is hereby amended as follows:

A.1. Attached hereto and made part of this Amendment Three are the SI Responses to RFI's for Questions Number 1 to 19.

A.2. Offerors shall acknowledge receipt of all amendments to this solicitation signed and dated and submit with proposal.

B. Attached is the Sign-In sheet from the 04/16 Site Visit.

Continued ...

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

NAME OF OFFEROR OR CONTRACTOR

2 7CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

(A) (B) (C) (D) (E) (F)

33330225RT0010018/0003

C. Questions or Clarifications due date is April 25, 2025. All questions must be submitted to

Virginia Chan at ChanVC@si.edu.

D. The Due Date for Receipt of Proposals is May 23, 2025, at 3:00 PM EST.

Except as provided herein, all other provisions, terms and conditions of the Solicitation remain unchanged.

END OF AMENDMENT THREE

NSN 7540-01-152-8067 OPTIONAL FORM 336 (4-86)

Sponsored by GSA

FAR (48 CFR) 53.110

Renovate Baird Auditorium Issued 4/23/2025

NMNH

Bid Phase RFIs

Number Date Received Discipline Question Response

1 4/9/2025 General

I wanted to reach out regarding the list of trade partners that were not able to make the site walk today and see if there is a plan to hold a second site walk in the near future. Our recommendation would be to have a second site walk within the next 2 weeks to allow bidders to see the space to develop questions prior to the RFI submission deadline on the 25th.

Additional site visits will be offered 4/16/2025. See communications specific to this offering under separate cover.

2 4/10/2025 General

Can you please set up another site visit, have other people that will need to see so we can get you a better price? See question 1.

3 4/10/2025 General Do you have any as-built drawings?

Known as-built conditions have been incorporated into the demolition and existing conditions drawings. Please specify what conditions you want to see on as-built documents.

4 4/10/2025 General Will the demolition contractor be able to have more than 1 dumpster on site? Demo contractor will be allowed one dumpster on site.

5 4/10/2025 Demolition Is the demolition work going to be accomplished during normal business hours?

See Specifications Section ”CONTRACTOR USE OF PREMISES”. Work creating sounds or vibrations shall be accomplished during the week between start of off-hours and 6:00 am Monday through Friday.

6 4/10/2025 General

Does the building have a 3 phase - 480 volts - 60 amps breaker we could use for the concrete slab removal?

There is a 480 volt-60 amp breaker in the existing mechanical room ME-AUD.

7 4/10/2025 Demolition Will all the equipment be removed from the protection booth?

yes, all equipment will be removed from booth prior to turnover to contractor.

8 4/11/2025 Demolition

On Drawings HD-121-DP & HD-122-DP, Lists the hazardard materials throughout, Are we to remove all items on the drawings or just some? If not all, can you let us know which items will be removed?

All hazardous materials are to be removed per drawings with following exceptions:

- Doors ROTG2 and ROTG3 are existing to remain;

- Follow specifications and drawing notes for protocols related to LBP. Encapsulation is acceptable and preferred in most locations.

9 4/11/2025 Demolition

In the middle of the auditorium, Letter D, List Black Foil Duct Insulation seams.

Are we to remove the auditorium ceiling to access the ductwork?

No. Do not take down auditorium ceiling. Abatement and demolition needs to happen above the ceiling in the cavity space.

10 4/11/2025 Demolition Are there any as-built drawings? See question 3.

11 4/16/2025 Demolition

Can we use scissor lifts in the hallways around the auditorium to access the ceiling tiles? Electric scissor lift can be used inside the building.

12 4/16/2025 Demolition

Can we use the emergency exit by the back of the stage, across from the chair lift to remove some debris?

Use of the exit (999 door) can be coordinated with COTR for pumping of concrete only. The use must be approved by COTR 2 weeks ahead of time and take place off hours between 8pm and 6am.

13 4/16/2025 Demolition How many dumpsters are we allowed to have on site at one time? See question 4.

14 4/16/2025 Demolition Will all the employees need to be badged? Will it cost anything?

See 01 0000 Section 54 Identification Badges. There is no cost.

15 4/16/2025 Demolition

Who is responsible for the disconnection, cut, cap, make safe and removal of all the electrical & mechanical conduits, wiring ductwork and panel boxes beneath the auditorium flooring? (All will need to be removed, because the upper slab is going to drop 3' feet onto the lower slab and don’t know what is connected to the rest of the building.)

The contractor will be responsible for the disconnection, cut, cap, make safe and removal of all the electrical & mechanical conduits, wiring ductwork and panel boxes beneath the auditorium flooring.

16 4/16/2025 Demolition Does anyone know the thickness of the concrete slabs (both upper & lower) ?

Based on historic drawings, the assumption is both slabs are 10": 6" base plus 4" topping. This has not been field verified.

17 4/21/2025 Demolition

Does the Smithsonian have a electrical panel box with 208 volts, 60 amp 3 phase, near the auditorium?

Yes, there is a 208 V, 60 amp 4 phase panel in mechanical room ME-AUD.

18 4/21/2025 Demolition

If yes, The best way to breakup the slabs in the auditorium would be with a brok.

If we supply a pigtail, would your electrician be able to tie into your panel box closest to the auditorium?

SI electrician will identify the electrical panel location and secure power to the panel , however the contractor will be responsible for providing the wiring and making the connection to the panel.

19 4/21/2025 Demolition Will all of this work be accomplished in one (1) phase? Yes, this is a one phase project.