Addendum 040822.pdf

PROJECT: Omaha VAMC Construct Combined Energy Plant Phase I

OWNER: U.S. Department of Veterans Affairs

Omaha VA Medical Center

4101 Woolworth Avenue

Omaha, Nebraska 68105

DATE: April 7, 2022

A D D E N D U M N O. 1

PART I – GENERAL

Item #1: REFERENCE the attached:

a. VA Omaha Pre-Bid Questions Answers 033022 Responses 040822 document.

b. Disregard references to Specification Section 130541 (no attachment).

c. Original Boiler Plant Drawings.pdf

d. Original Tunnel Plan.pdf

e. Addendum Plan Sheets.pdf

f. Addendum Specs 040822.pdf

PART II – CIVIL DRAWINGS

Item #1: REVISIONS/ADD/DELETE to Sheets attached:

a. CD-100 revisions.

b. CD-110 revisions.

c. CD-111 revisions.

d. CD-120 revisions.

e. CD-121 revisions.

f. CG-100 add sheet.

g. CG-110 revisions.

h. CG-111 add sheet.

i. CG-112 add sheet.

j. CG-113 add sheet.

k. CF-110 revisions.

l. CP-110 deleted.

m. CS-300 add sheet.

n. CS-310 revisions.

o. CS-400 revisions.

p. CS-410 revisions.

q. CS-411 revisions.

r. CS-412 revisions.

s. CS-413 revisions.

t. CU-100 revisions.

u. CU-110 revisions.

v. CU-111 revisions.

w. CU-112 revisions.

x. CU-113 revisions.

PART III – ARCHITECTURAL SPECIFICATIONS

Item #1: DELETE Section 072400 Exterior Insulation Finish System:

a. Delete this section in its entirety.

Item #2: REVISION to Section 087100 Door Hardware attached:

a. Revised Section 087100.

Item #3: REVISION to Section 102113 Toilet Partitions attached:

a. Revised Section102113.

PART IV – ARCHITECTURAL DRAWINGS

Item #1: REVISION to Sheet GI-001 Index of Drawings attached:

a. Revised Civil Sheets index.

Item #2 RESUBMISSION to Sheet GI-002 General Information, Symbols & Location Map:

a. Resubmitted original sheet GI-002.

Item #3: CLARIFICATION to Sheet AI-100 Life Safety Plans attached:

a. Fire rated walls along grid line ‘2’.

Item #4: CLARIFICATIONS/REVISIONS to Sheet AS-210 Floor Plan – Ground Level attached:

a. Fire rated walls along grid line ‘2’ clarification.

b. Foundation drop at Normal Electric Room XXX-18.

Item #5: REVISION to Sheet AS-230 – Roof Plan attached:

a. General Note 25 to be deleted. Reference drawings for walkway protection layout.

b. General Note 27 to be deleted. Reference specifications for warranty requirements.

c. Keyed Note 14 revision.

Item #6: CLARIFICATION to Sheet AS-310 Building Elevations attached:

a. Brick coursing new drawing 5/AS-310.

b. New Keyed Notes 23 and 24.

Item #7: REVISION to Sheet AS-400 Building Sections attached:

a. 1/AS-400 Building Section Looking North.

b. 4/AS-400 Building Section Looking East.

c. 5/AS-400 Partial Building Section Looking North.

Item #8: REVISION to Sheet AS-410 Wall Sections attached:

a. 3/AS-410 Wall Section.

b. 4/AS-410 Wall Section.

Item #9: REVISION to Sheet AS-411 Wall Sections attached:

a. 3/AS-411 Wall Section.

b. 4/AS-411 Wall Section.

c. 6/AS-411 Wall Section.

Item #10: REVISION to Sheet AS-510 Interior Elevations attached:

a. 3/AS-510 South Elevation – Staff Toilet revised.

Item #11: ADD to Sheet AS-600 Section Details attached:

a. New detail 6/AS-600.

Item #12: ADD to Sheet AS-601 Section Details attached:

a. New detail 5/AS-601.

Item #13: REVISION to Sheet AS-700 Schedules, Door Types, Frame Types & Louver Types:

a. Door Schedule revisions.

Item # 14: ADD to Sheet AS-711 Window & Louver Details attached:

a. New detail 7/AS-711.

PART V – STRUCTURAL

Item #1: REVISIONS attached:

a. Revisions in attached documents.

PART VI – MECHANICAL, PLUMBING & ELECTRICAL

Item #1: REVISIONS attached:

a. Revisions in attached documents.

END OF ADDENDUM NO. 1

ADDENDUM No. 1 April 7, 2022

PROJECT: Omaha Chiller Plant Construct Combined Energy Plant Phase 1 4101 Woolworth Avenue

Omaha, NE 68105 - Project Number 636-18-304

The following addenda are issued to change, amplify or further explain the plans and specifications and shall therefore take precedence over the original contract documents in the event of conflict:

STRUCTURAL SPECIFICATIONS Items (-None-)

STRUCTURAL DRAWINGS Items S1 thru S5 Pages 1 of 1

ATTACHMENTS: Sheets S-1.2, S-2.1, S-3.1, S-3.3, S-3.4

STRUCTURAL ENGINEER

R-S-C-R, INC.

Consulting Engineers 1950 La Manda Blvd.

San Antonio, Texas 78201 Ph: (210) 340-7973 Fax: (210) 366-2324 TBPE Registration No. F-2181

RONALD A. PODOJIL, P.E.

STRUCTURAL DRAWINGS

ITEM S1: Reference Sheet S-1.2, Typical Details. DELETE Sheet S-1.2 in its entirety and replace with REVISED Sheet S-1.2, attached hereto and hereby issued with this Addendum.

ITEM S2: Reference Sheet S-2.1, Pier Plan, Foundation and Floor Framing Plan, Relocated Chiller Fnd. Framing Plan. DELETE Sheet S-2.1 in its entirety and replace with REVISED Sheet S- 2.1, attached hereto and hereby issued with this Addendum.

ITEM S3: Reference Sheet S-3.1, Sections. DELETE Sheet S-3.1 in its entirety and replace with REVISED Sheet S-3.1, attached hereto and hereby issued with this Addendum.

ITEM S4: Reference Sheet S-3.3, Sections. DELETE Sheet S-3.3 in its entirety and replace with REVISED Sheet S-3.3, attached hereto and hereby issued with this Addendum.

ITEM S5: Reference Sheet S-3.4, Sections and Details. DELETE Sheet S-3.4 in its entirety and replace with REVISED Sheet S-3.4, attached hereto and hereby issued with this Addendum.

END OF ADDENDUM No. 1

2020-16

The following additions, revisions and modifications are hereby made part of the contract documents, which shall be amended accordingly. Acknowledge receipt of addenda on bid form. Failure of your acknowledgement of receipt of this addendum may result in rejection of your offer.

ADDENDUM NO. 01

SPECIFICATIONS

1. Section 26 11 63 – Secondary Unit Substations

a. Added paragraph 2.3-A-12-i: "12" tall leak containment basin below transformer section for minor leak containment." to transformer features.

2. Section 26 23 00 – Low Voltage Switchgear

a. Revised paragraph 2.1-A-2 to read "Switchgear shall be Type 1 front and rear accessible."

DRAWINGS

FIRE PROTECTION

1. Not Applicable.

PLUMBING

1. XX-P-102 – PLUMBING MEZZANINE PLAN

Added floor drain on mezzanine.

MECHANICAL

1. 0-MD-201 – MECHANICAL FLOW DIAGRAMS – CHILLED WATER DEMO

Clarified notes for existing and demo of existing chiller and cooling tower.

2. 0-MS-001 – MECHANICAL SITE PLAN

Clarified naming of existing site chillers.

3. 0-MS-002 – MECHANICAL SITE PLAN

Clarified naming of existing site chillers.

4. 0-M-201 – MECHANICAL FLOW DIAGRAMS-CHILLED WATER MODIFICATIONS

Revised Equalizer

5. 0-M-301 – MECHANICAL SECTIONS

Revised Section 3 MEZZANINE AHU-2

6. 0-M-401 – MECHANICAL ENLARGED PLAN – EXISTING CHILLER

Added notes for existing pumps and clarifications for connections.

7. 0-M-501 – MECHANICAL DETAILS

Added Sidewall Mounted Fan Detail.

8. 0-M-502 – MECHANICAL DETAILS

Added Steam powered Condensate pump detail

9. 0-M-503 – MECHANICAL DETAILS

Added Water Cooled Chiller Piping Detail.

10. 0-M-601 MECHANICAL SCHEDULES

Modified Cooling Tower Schedule for Clarity.

Modified Efficiency and rating for chiller.

11. 0-M-602 MECHANICAL SCHEDULES

Added Condensate Pump Schedule.

12. 0-M-703 – MECHANICAL CONTROLS

Added General Exhaust System Control Diagram and points.

13. 0-M-704 – MECHANICAL CONTROLS

Modified title for Refrigerant Fan points list.

14. 0-MSD001 – MECHANICAL SITE DEMOLITION PLAN

a. Key note 8, added (CH-B) for clarity.

b. Key note 9, added OIL.

15. 02-MP-101 – MECHANCIAL PIPING DESIGN PLAN – PARTIAL BOILER PLANT

a. Extended Condensate Piping into plant and key notes with associated piping.

16. XX-MH-102 – MECHANICAL HVAC DESIGN PLAN – CHILLER PLANT MEZZANINE

a. Modified Housekeeping Pad notes.

17. XX-MP-101 – MECHANICAL PIPING DESIGN PLAN – CHILLER PLANT GROUND FLOOR

a. Modified Condensate routing.

18. XX-MP-102 – MECHANICAL PIPING DESIGN PLAN – CHILLER PLANT MEZZANINE

a. Modified Condensate routing.

b. Added Steam driven Condensate Pump

19. XX-M-103 – MECHANICAL DESIGN PLAN – CHILLER PLANT ROOF

a. Added notes for provide heat tracing.

ELECTRICAL

1. 0-ES-101 – ELECTRICAL SITE PLAN

a. Revised Keyed Notes 5 and 9 to reference drawing for feeder and requirements.

2. XX-EL-101 – NEW CHILLER PLANT, BLDG XX-FIRST FLOOR LIGHTING PLAN

a. Relocated EM light fixture from Electrical Room XXX-18 to Emergency Electrical Room XXX-14

3. XX-EP-101 – NEW CHILLER PLANT, BLDG XX-FIRST FLOOR POWER PLAN

a. Added Keyed note 8 to XFMR section for SUB1 and SUB2 for leak containment.

4. XX-E-601 – NEW CHILLER PLANT, BLDG XX-ELECTRICAL ONE-LINE DIAGRAM

a. Revised minimum AIC rating on NSWBD1 and NSWBD2 to 100kAIC.

5. XX-E-602 – NEW CHILLER PLANT, BLDG XX-ELECTRICAL SCHEDULES

a. Revised Luminaire Schedule to Basis-of-Design manufacturer and model number.

TECHNOLOGY

1. 0-TS-101 – TECHNOLOGY SITE PLAN

a. Revised Keyed Note 1 to reference drawing for conduit and cabling requirements.

FIRE ALARM

1. Not Applicable.

END OF ADDENDUM