2018_09_13_Addendum_No.4.pdf

AECOM

27777 Franklin Road, Ste. 2000

Southfield, MI 48034 T: 248.204.5900

F: 248.204.5901 www.aecom.com

Addendum No. 4

Client: Selfridge Air National Guard Base Project Name: Renovate Bldg. 168 – Wellness Center

Location: Selfridge ANG Base, Michigan

Project No.: 60554155

Issue Date: September 13, 2018

This addendum refers to: drawing AD01 revised and reissued.

1. NOTICE

A. This Addendum No. 4 to the contract documents for the above captioned project supersedes all contrary and/or conflicting information on said contract documents, where are hereby amended in certain particulars, as follows:

2. Contractors Bidding Questions:

A. Will the building be occupied during construction?

1. ANSWER: The building will be partially occupied during construction, but not enough to hinder construction activities. Refer to Statement of Work (SOW) for coordination instructions.

B. Will temp walls be required for this project? If so, can you provide a plan where you want the temp walls built and what requirements for it?

1. ANSWER: The SOW does not mention temporary walls. The SOW does mention to provide barricades. Please adhere to the SOW’s Life

Safety instructions.

C. Drawing AD01 call for the complete wall demo at the lecture hall, rm #130

(option 1). There is railing that sits above these new walls. Can you provide a wall detail on what’s the extent of that wall demo?

1. ANSWER: See detail #1 on sheet A103.

D. On drawings A101, there’s a reference to note #9 in the restroom but there’s no #9 in the floor plan key notes. Please advise.

1. ANSWER: See addendum #1 AD1-2 Architectural Drawing

Revisions Paragraph *B.” Item 1.

Addendum No. 4 AECOM

Renovate Bldg. 168 – Wellness Center

60554155

E. What is the deck height?

1. ANSWER: Cannot answer this question as not enough information was given to identify which deck it is? Please resubmit this question with more detail.

F. Is there a spec on the signage?

1. ANSWER: See signage details and notes on sheet a 301. Delete signage note 1.1 (does not apply to this project). See sheet a101 for

T1 and T2 sign locations (outside of toilet rooms in corridor 118).

G. Note 6.1 says to remove steps and platform. Please confirm these are wood only, no raised concrete.

1. ANSWER: Yes, Wood, not concrete.

H. Per amendment #2, what is the height to the bottom of the roof slab? Note

4.1 states masonry walls go to this height.

1. ANSWER: Wall height at Gable roof area 12’-3” A.F.F (kitchen area and areas to the north). Wall height at low slope roof area = 9’-0” to

9’6” +/- A.F.F (Toilet rooms and areas to the south).

I. We attended the 1st walkthrough. Is it mandatory to attend the 2nd walkthrough per amendment 1?

1. ANSWER: Attending “a” site visit is mandatory, but not for both.

J. On drawing AD01 under asbestos abatement notes at the top of the drawing it states, “ Contractor shall assume the presence of asbestos containing floor tile ( 9” x 9”) and floor tile mastic under all flooring noted for demolition”.

Then in the legend on the bottom of that drawing they designated a cross-hashed demarcation for asbestos flooring removal which is seen sporadically throughout the drawing.

1. ANSWER: Only bid areas with crosshatch pattern for asbestos containing floor tile and mastic removal.

K. Am I just bidding the cross hashed flooring removal, or am I bidding all of the flooring removal? Because according to the asbestos abatement notes we are to assume there is asbestos containing floor tile and mastic underneath all flooring called for removal???? If they didn’t have the cross hashed demarcation in the legend I would assume all flooring, but that demarcation is making me second guess it, like they are trying to isolate where the asbestos flooring is and not assume it is everywhere???

Addendum No. 4 AECOM

Renovate Bldg. 168 – Wellness Center

60554155

L. ANSWER: Only bid areas with crosshatch pattern for asbestos containing floor tile and mastic removal.

M. Under the cross hashed demarcation there are two other demarcations for flooring removal. The (left-right) diagonal lines & the (right to left) diagonal lines. I guess the easier question is am I supposed to assume there is 9” x 9” floor tile and mastic underneath the existing flooring?? The asbestos notes would say I do, but then why did they separate a demarcation for asbestos flooring??

1. ANSWER: The (left-right) diagonal lines & the (right to left) diagonal lines, denote flooring materials to be removed that have no known asbestos containing materials beneath them. (either carpet or ceramic tile - see keynotes)

N. For bidding purposes, can you give us the approximate start and finish date of the project?

1. ANSWER: Period of performance is 180 calendar days after Notice to Proceed is issued to an awardee who’s bonds are submitted and approved.

O. Where do we fill in the cost for the option 1 and 2 on the bid form? It looks likes the items 1 and 2 are base bid items (see attached). They don’t reflect the alternate costs. Please advise.

1. ANSWER: There are no alternate bid items associated with this solicitation. Please bid per the main two base CLIN items.

P. Are there any liquidated damages?

1. ANSWER: Liquidated damages are not associated with this project.

3. ARCHITECTURAL DRAWING REVISIONS

A. Refer to drawing AD01 “First Floor Demolition Plan” (re-issued).

1. See drawing for additional work as indicated.

EX.RTU-1

EX.RTU-2

10.2 10.2 9.6

6.1

6.1

6.1

23 2323

8.1 8.18.1

8.18.1 8.18.18.1

8.1

12.1

22.1 22.1

22.1

4.1 4.1

4.1

4.1 4.1

EXIST. PORTION OF

TO WALL REMAIN

15'-4"

9.7

6.1

8.1

8.1

8.1

8.1

8.1 8.1

6.1

9.1

4.1

4.1

4.1

4.1

12.1

8.2

8.2

8.2

8.2

9.1

8.18.1 9.1

9.1

9.1

5'-2" 3'-4"

4" 3'-

4"

OPTION # 2 -

OPTION # 1 - LINE

DENOTES LIMITS OF CARPET

REMOVAL ( 180 sq.ft. +/- )

21'-0"

'-3

9.3

9.3

9.4

9.7

8.1

9.7

4.1

9.2 9.2

9.2 9.2

9.2 9.2

9.4

9.5 9.5 9.5

9.5

127th WING

WELLNESS

CENTER

BUILDING 168

RENOVATION

http://www.AECOM.com

27777 Franklin Road, Suite 2000

Southfield, MI 48034

United States

P: 248 204 5900 F: 248 204 5901

FIRST FLOOR

DEMOLITION

PLAN

AD01

NORTH

FIRST FLOOR DEMOLITION PLAN

REMOVE EXISTING MASONRY WALL - TO BOTTOM OF ROOF SLAB AND PREP FOR CONCRETE INFILL

AFTER ASBESTOS ABATEMENT, REMOVE STEPS, PLATFORM AND FRAMING. PREP FOR NEW FLOOR FINISH

REMOVE DOOR AND FRAME

REMOVE EXISTING STEEL FRAMED WINDOW UNIT - REFER TO ASBESTOS / LEAD DISCOVERY NOTES ON

THIS SHEET.

REMOVE PARTITION - VERIFY EXACT CONSTRUCTION IN FIELD. SALVAGE 50 sq. ft. OF HARDWOOD PANELS

FROM THE EAST WALL OF THE NAVE FOR RE-USE.

REMOVE PLASTER CEILING AND SUSPENSION SYSTEM IN THIS ROOM

REMOVE PLASTER BULKHEAD AND FRAMING

REMOVE LAY-IN CEILING PANELS IN THIS ROOM - METAL GRID SUSPENSION SYSTEM TO REMAIN

REMOVE LAY-IN CEILING PANELS AND METAL GRID SUSPENSION SYSTEM

REMOVE CERAMIC/PORCELAIN FLOOR TILE AND MUD BED IN THIS ROOM. CONCRETE SLAB BELOW TO

REMAIN. PREP FOR NEW CONCRETE TOPPING AND FLOOR FINISH.

REMOVE CARPET AND WALL BASE IN THIS ROOM. - PREP SURFACES FOR NEW WORK

REMOVE TOILET PARTITIONS

REMOVE COUNTER TOP/CASEWORK

REMOVE PLUMBING FIXTURES - REFER TO MECHANICAL DRAWINGS

REMOVE ASBESTOS FLOORING - REFER ASBESTOS ABATEMENT NOTES (THIS SHEET)

REMOVE EXISTING CERAMIC TILE AND CONCRETE FLOOR SLAB - PREP FOR NEW WORK

4.1

6.1

8.1

8.2

9.1

9.2

9.3

9.4

9.5

9.6

9.7

10.2

12.1

22.1

DEMOLITION KEY NOTES

EXISTING PARTITION TO BE REMOVED

EXISTING DOOR TO REMAIN - REFER TO DOOR SCHEDULE FOR ADDITIONAL

INFORMATION

EXISTING DOOR AND FRAME TO BE REMOVED - REFER TO DEMOLITION NOTES

FOR ADDITIONAL INFORMATION

DEMOLITION PLAN LEGEND

EXISTING PARTITION TO REMAIN

1. IF SUSPECTED ASBESTOS CONTAINING BUILDING MATERIAL (ACBM) IS ENCOUNTERED, WORK IN THE IMMEDIATE VICINITY MUST STOP AND THE OWNERS CONTRACTING OFFICER SHALL BE NOTIFIED. AFTER CONSULTATION WITH BASE PERSONNEL, THE OWNERS CONTRACTING OFFICER WILL DIRECT FURTHER ACTION TO BE TAKEN. WORK SHOULD PROCEED UNINTERRUPTED IN UNAFFECTED AREAS OF THE PROJECT.

2. BASED ON THE AGE OF THE BUILDINGS AT SELFRIDGE ANG BASE, THERE IS THE POTENTIAL FOR THE PRESENCE OF LEAD ON PAINTED SURFACES. BEST MANAGEMENT PRACTICES MUST BE EMPLOYED TO MINIMIZE DUST AND ADEQUATELY PROTECT WORKERS FROM LEAD BASED PAINT (LBP) EXPOSURE IN

ACCORDANCE WITH OSHA AND MIOSHA STANDARDS.

3. IF ASBESTOS AND/OR LEAD IS SUSPECTED IT SHOULD BE TESTED FOR. IF EITHER ASBESTOS AND/OR LEAD

IS FOUND, FOLLOW APPLICABLE OSHA GUIDELINES FOR REMEDIATION.

4. REFER TO SPECIFICATIONS. APPENDIX NO. 1 : ASBESTOS INSPECTION REPORT USAG-M OMA BUILDING

NO.168 AND APPENDIX NO.2 : 168 LEAD INVESTIGATION REPORT - LEAD BASED PAINT

1. CONTRACTOR SHALL INCLUDE THE ABATEMENT OF ALL ASBESTOS CONTAINING BUILDING MATERIALS

(ACBM) IN THEIR BID.

2. ASBESTOS ABATED IN THE COURSE OF THIS PROJECT MUST BE PROPERLY COLLECTED, CONTAINERIZED AND DISPOSED OF IN A LANDFILL LICENSED TO ACCEPT ASBESTOS WASTE. ALL ASBESTOS DISPOSAL MANIFESTS MUST BE COORDINATED WITH, AND SIGNED BY, 127TH WING ENVIRONMENTAL MANAGEMENT

OFFICE PERSONNEL.

3. CONTRACTOR SHALL UTILIZE SELFRIDGE ANG BASE (SANGB) FORM 23 FOR TRACKING HAZARDOUS

MATERIALS AND SANGB FORM 72 FOR SOLID WASTE TRACKING AND DIVERSION.

4. CONTRACTOR SHALL ASSUME THE PRESENCE OF ASBESTOS CONTAINING FLOOR TILE (9" X 9") AND TILE

MASTIC UNDER ALL FLOORING NOTED FOR DEMOLITION.

5. CONTRACTOR SHALL ASSUME THE PRESENCE OF ASBESTOS CONTAINING INSULATION ON PLUMBING AND MECHANICAL PIPING NOTED FOR DEMOLITION AND/OR ALTERATION. REFER TO MECHANICAL AND PLUMBING

DRAWINGS FOR ADDITIONAL INFORMATION.

1. REFER TO GENERAL NOTES ON SHEET AD101 FOR DEMOLITION AND NEW WORK REQUIREMENTS.

2. REFER TO ARCHITECTURAL, MECHANICAL AND ELECTRICAL DRAWINGS FOR ADDITIONAL DEMOLITION

INFORMATION.

3. ALL DEMOLITION SHALL BE CARRIED OUT IN A SAFE MANNER AND IN STRICT ACCORDANCE WITH OSHA /

MIOSHA REGULATIONS.

4. DEMOLITION CONTRACTOR TO COORDINATE AND REVIEW ALL CONSTRUCTION DOCUMENTS AND

DETERMINE THE EXTENT OF DEMOLITION WORK AND BECOME FAMILIAR WITH THEM THOROUGHLY BEFORE PERFORMING ANY DEMOLITION WORK. BY THE ACT OF STARTING DEMOLITION, THE CONTRACTOR WILL BE DEEMED TO HAVE COMPLIED WITH THE FOREGOING, TO HAVE ACCEPTED SUCH CONDITIONS, AND TO HAVE

MADE THE NECESSARY ALLOWANCES IN HIS BID.

5. ANY ITEMS LEFT IN DEMOLITION AREAS WILL BECOME THE PROPERTY OF DEMOLITION CONTRACTOR FOR

HIS OFF-SITE DISPOSAL AT THE CONTRACTOR'S EXPENSE UNLESS NOTED OTHERWISE.

6. GENERAL CONTRACTOR TO COORDINATE COMMENCEMENT OF DEMOLITION WORK WITH OWNER

REPRESENTATIVE.

7. PATCH AND REPAIR ALL OPENINGS IN EXISTING GYPSUM BOARD WALLS CREATED BY REMOVAL OR INSTALLATION OF ELECTRICAL OUTLETS, DATA DROPS, OR SWITCHES. REFER TO ELECTRICAL PLANS FOR

LOCATIONS.

DEMOLITION GENERAL REQUIREMENTSASBESTOS ABATEMENT NOTESASBESTOS/LEAD DISCOVERY NOTES

ASBESTOS FLOORING TO BE ABATED - SEE ABATEMENT NOTES THIS SHEET

EXISTING FLOORING AND CONRETE SLAB AND RAMPS TO BE REMOVED - PREP FOR

NEW CONCRETE.

REMOVE CERAMIC/PORCELAIN FLOOR TILE AND MUD BED IN THIS AREA. CONCRETE

SLAB BELOW TO REMAIN. PREP FOR NEW MUD BED AND CERAMIC TILE.

A2

A4

A4 A4

A4

A4 A4

A4

A4

A4

A4

A4 A4 A4

A4

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AutoCAD SHX Text 127th WING/CIVIL ENGINEER

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SELFRIDGE AIR

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NATIONAL GUARD

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BASE, MICHIGAN

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REVISIONS:

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PROJECT

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02/13/18 100%%% FINAL

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ADDENDUM # 2

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AutoCAD SHX Text 09-13-18

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ADDENDUM # 4