Attachment 13 - Narrative - Addendum 1 and drawings.pdf

13605 1st Avenue North Suite 100, Plymouth, MN 55441 P 763.412.4000 F 763.412.4090 ae-mn.com

INSTRUCTIONS TO CONTRACTOR

Addendum #1

August 07, 2025

Laboratory Remodel and Addition

Des Moines, VAMC

Des Moines, IA

Project # 636-130

The Contents of this Revision alter and amend the original drawings and specifications:

Drawings:

1. Drawing D-001

a. Added location of CWS and CWR and added notes.

2. Drawing C-004

a. Added location of CWS and CWR and added notes.

Specifications:

NONE

ATTACHMENTS:

DRAWINGS: D-001, C-004

SPECIFICATIONS: NONE

ISSUED BY ANDERSON and IMEG: TO, GB, LK, EH

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LEGEND

PROPERTY LIMITS

LIMITS OF CONSTRUCTION

EXISTING WATERMAIN

EXISTING SANITARY SEWER

EXISTING STORM SEWER

PROPOSED WATERMAIN

PROPOSED SANITARY SEWER

PROPOSED STORM SEWER

PROPOSED DRAINTILE

PROPOSED WATERMAIN

FITTING

PROPOSED STORM INLETS

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

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Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORDCONSULTANT

321 4 5 6 7 8 9 10

Project Director

Revisions:

13605 1st Ave. N. #100 Pl ymout h, MN 55441 P 763.412.4000 | F 763.412.4090 | ae-mn.com Anderson Engineering of Minnesota, LLC | Proj # 15569

VACIHCS LABORATORY

REMODEL & ADDITION

636-130

1W

DES MOINES, IA

LRK MAM

BID DOCUMENTS

Date:

ADDRESS VA COMMENTS 03/01/21 10/02/2024

FULLY SPRINKLERED

1) SEE 'UTILITY POTHOLING INFORMATION' FOR

ADDITIONAL INFORMATION ON EXISTING CHILLED

WATER & STEAM PIPING SIZE AND DEPTHS.

2) CONTRACTOR TO MAINTAIN CHILLED WATER &

STEAM SERVICE THROUGHOUT CONSTRUCTION.

MINOR SERVICE DISRUPTIONS FOR TRANSFER

TO/FROM TEMPORARY SERVICES SHALL BE LIMITED

TO 90 MINUTES MAX.

C-004

REMOVE EX. CHILLED

WATER & STEAM PIPING

TO 5.0' FROM FACE OF

PROPOSED BUILDING

BUILDING 1W

MULTI-STORY

BUILDING

ADDITION

CUT & CAP EX. CHILLED WATER

SUPPLY (CWS)

CHILLED WATER RETURN (CWR)

STEAM SUPPLY (MPS) &

STEAM RETURN (MPC)

CHILLED WATER & STEAM

PIPING TO REMAIN

LIMITS OF EX. CHILLED WATER &

STEAM PIPING REMOVAL

INCLUDED IN PLUMBING SCOPE.

(REFER TO PLUMBING PLANS)

CONTRACTOR TO CUT EX.

CHILLED WATER & STEAM PIPING

INSIDE BUILDING (REFER TO

PLUMBING PLANS)

NOTE:

N

0 10' 20'

SCALE:1

CHILLED WATER & STEAM REMOVALS

1"=10'

N

0 10' 20'

SCALE:2

CHILLED WATER & STEAM PROPOSED ALIGNMENT

1"=10'

LIMITS OF EX. CHILLED

WATER & STEAM PIPING

REMOVAL INCLUDED IN

CIVIL SCOPE

EXISTING CHILLED

WATER & STEAM PIPING

CONNECT TO EXISTING

CHILLED WATER & STEAM

PIPING TO REMAIN

PROPOSED CHILLED WATER

SUPPLY (CWS), CHILLED

WATER RETURN (CWR), STEAM

SUPPLY (MPS) & STEAM

RETURN (MPC) (MATCH EX

PIPE SIZE, MATERIAL, & WALL

THICKNESS)

CONNECT TO PROPOSED

CHILLED WATER & STEAM

LINES INSTALLED PER

PLUMBING SCOPE AT

POINT 5.0' FROM FACE OF

PROPOSED BUILDING

APPROXIMATE ALIGNMENT OF

REROUTING OF CHILLED WATER

& STEAM PIPING WITHIN BUILDING

(REFER TO PLUMBING PLANS)

CHILLED WATER AND STEAM

UTILITY PLAN

PROVIDE TEMP. WALKWAY

MIN 4 FT WIDE. MAINTAIN

DURING DURATION OF

PROJECT.

ADDENDUM 01 08/07/20251

BUILDING 1W

REFER TO PLUMBING PLANS FOR ALL

DEMO/CAPPING WORK OF 6" CHILLED

WATER LINES WITHIN 5.0' OF BUILDING

& INSIDE BUILDING 1W.

BUILDING 3

BUILDING 3

CAP EXISTING 6" CHILLED

WATER PIPING 5.0' FROM

FACE OF BUILDING.

5.0' (TYP.)

SEE PLUMBING PLANS

FOR WORK INSIDE

BUILDING 1W.

REMOVE 6" CHILLED WATER PIPING

TO 5.0' FROM FACE OF EXISTING

BUILDING 1W & BUILDING 3.

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LEGEND

PROPERTY LIMITS

LIMITS OF CONSTRUCTION

EXISTING WATERMAIN

EXISTING SANITARY SEWER

EXISTING STORM SEWER

EXISTING FENCE

EXISTING GAS MAIN

EXISTING OVERHEAD WIRES

EXISTING TELEPHONE

EXISTING UNDERGROUND

ELECTRIC

EXISTING HYDRANT AND GV

EXISTING SANITARY MANHOLE

EXISTING STORM SEWER INLET

REMOVE EXISTING UTILITY LINE

REMOVE EXISTING BUILDING

STRUCTURE

REMOVE EXISTING CONCRETE

PAVERS

REMOVE EXISTING CONCRETE

WALK LIMITS

REMOVE EXISTING FEATURE

Project Number

Building Number

Drawing Number

Project Title

Location

Issue Date Checked Drawn

Drawing Title

Approved:

VA FORM 08 - 6231

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M

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

A

B

C

D

E

F

21 4 5 6 7 8 9 10

PhaseARCHITECT/ENGINEER OF RECORDCONSULTANT

321 4 5 6 7 8 9 10

Project Director

Revisions:

13605 1st Ave. N. #100 Pl ymout h, MN 55441 P 763.412.4000 | F 763.412.4090 | ae-mn.com Anderson Engineering of Minnesota, LLC | Proj # 15569

VACIHCS LABORATORY

REMODEL & ADDITION

636-130

1W

DES MOINES, IA

LRK MAM

BID DOCUMENTS

Date:

ADDRESS VA COMMENTS 03/01/21 10/02/2024

FULLY SPRINKLERED

FULL DEPTH SAWCUT

AT JOINT LINE FOR

MINIMUM SIDEWALK

REMOVAL LIMIT (TYP.)

REMOVE EXISTING

STORM SEWER AND

STRUCTURES

REMOVE BUILDING

REMOVE WINDOW WELLS AND

REROUTE EX. DRAIN TILE (TYP.)

FULL DEPTH SAWCUT

AT JOINT LINE FOR

MINIMUM SIDEWALK

REMOVAL LIMIT (TYP.)

FULL DEPTH SAWCUT

AT JOINT LINE FOR

MINIMUM SIDEWALK

REMOVAL LIMIT (TYP.)

REMOVE FIRE HYDRANT

& AUX. VALVE

REMOVE/STRIP LANDSCAPING

AGGREGATE FOR PROPOSED

IMPROVEMENTS (TYP.)

REMOVE/STRIP LANDSCAPING

MATERIAL FOR PROPOSED

IMPROVEMENTS (TYP.) -

COORDINATE WITH VA STAFF

REMOVE EXISTING

SEGMENTAL BLOCK

WALL (TYP.)

REMOVE CONCRETE DUCT - FIELD

VERIFY ELECTRICAL LOCATION

REMOVE 8" DIP

WATERMAIN - FIELD

VERIFY LOCATIONCOORDINATE TEMPORARY

PEDESTRIAN TRAFFIC ROUTING

BETWEEN BUILDING 1 AND

BUILDING 3 WITH COR

CONTRACTOR SHALL ENSURE

TEMPORARY ABAAS ACCESS

TO BUILDING 3 UNTIL

SIDEWALK IS REPLACED

(TYP.)

DEMOLITION PLAN

D-001

REMOVE EX.

AC UNITS

REMOVE (5) EXISTING

ROOF DRAINS (TYP.)

REMOVE EX.

32" TREE

1. PRIOR TO CONSTRUCTION, CONTRACTOR SHALL PROVIDE A

PRE-CONSTRUCTION CONDITION REPORT OF ALL ACCESS ROUTES

AND ROADS AND HAVE IT APPROVED BY THE CONTRACTING

OFFICER'S REPRESENTATIVE (COR).

2. CONTRACTOR IS RESPONSIBLE FOR OBTAINING ALL PERMITS AND

DISPOSAL CERTIFICATIONS. CONTRACTOR RESPONSIBLE FOR

OBTAINING ALL NECESSARY CONSTRUCTION PERMITS TO CARRY OUT

ENTIRE PROJECT. PERMITS SHALL BE IN PLACE PRIOR TO ANY

CONSTRUCTION ACTIVITIES. NOTIFY APPROPRIATE UTILITY COMPANY

OF ANY AND ALL PROPOSED WORK AFFECTING OFFSITE PRIVATE

UTILITIES, THE CITY FOR WORK AFFECTING THE CITY'S WATERMAIN,

AND THE COR FOR WORK WITH THE POTENTIAL TO DISRUPT CAMPUS

UTILITIES.

3. THE CONTRACTOR SHALL AVOID DAMAGE TO EXISTING SITE

ELEMENTS THAT ARE TO REMAIN, INCLUDING BUT NOT LIMITED TO:

CURB & GUTTER, TREES, UTILITIES AND OTHER FACILITY FEATURES.

CONTRACTOR SHALL BE RESPONSIBLE TO REPAIR AND/OR REPLACE

ANY SITE ELEMENT TO REMAIN THAT IS DAMAGED BY CONSTRUCTION

ACTIVITIES AT NO ADDITIONAL COST TO OWNER. CONTRACTOR

SHALL NOT DISTURB EXISTING SITE OUTSIDE OF FENCED OR WORK

ZONE AREAS UNLESS OTHERWISE NOTED ON PLANS.

4. UTILITY INFORMATION IS BASED ON A SURVEY PERFORMED BY

ANDERSON ENGINEERING DATED APRIL 2020 AND INFORMATION

SUPPLIED BY THE VA. CONTRACTOR TO VERIFY ALL UNDERGROUND

UTILITIES AS NECESSARY TO COMPLETE WORK. THE VA HEALTH CARE

SYSTEM WILL MARK PRIVATE UTILITIES IN THE WORK AREA AT THE

CONTRACTOR'S REQUEST. CAMPUS STAFF SHALL BE GIVEN ADVANCE

NOTICE OF ANY REQUEST FOR PRIVATE UTILITY LOCATION AS

DESCRIBED WITHIN THE GENERAL CONDITIONS. UTILITIES ON PLANS

MAY VARY FROM EXISTING CONDITIONS. CONTRACTOR IS

RESPONSIBLE FOR ANY DAMAGE CAUSED TO UTILITIES WHETHER

SHOWN, NOT SHOWN, OR SHOWN INCORRECTLY. NOTIFY COR

IMMEDIATELY IF ANY DISCREPANCIES ARE FOUND.

5. PHASE DEMOLITION AS NEEDED TO MAINTAIN DRAINAGE AND

UTILITIES FOR MINIMAL DISRUPTION.

6. INSTALL EROSION CONTROL FENCE PER DETAIL C-500 PRIOR TO THE

COMMENCEMENT OF WORK.

7. INSTALL CONSTRUCTION FENCE PER SPECIFICATION SECTION 01 00

00 - GENERAL REQUIREMENTS.

8. TREE REMOVAL SHALL INCLUDE CUTTING, DISPOSAL AND

STUMP/ROOT REMOVAL TO A DEPTH OF 2 FT BELOW FINISHED GRADE.

9. EXCEPT AS NOTED, ALL AREAS WITHIN CONSTRUCTION LIMITS SHALL

BE CLEARED AND GRUBBED PER PLANS AND SPECIFICATIONS.

10.TREES TO BE SAVED SHALL BE PROTECTED WITH ORANGE

CONSTRUCTION FENCE AS PART OF EROSION CONTROL FENCE

CONSTRUCTION LIMITS.

11.CONTRACTOR TO CONTAIN ALL EQUIPMENT/TRUCKS AND VEHICLES

TO CONSTRUCTION ZONE.

12.CONTRACTOR IS RESPONSIBLE FOR PROTECTING EXISTING

IRRIGATION EQUIPMENT INCLUDING BUT NOT LIMITED TO EQUIPMENT

PRESENT WITHIN THE LAWNS SOUTH OF BUILDINGS 2 AND 28. ANY

EXISTING IRRIGATION EQUIPMENT INCLUDING, BUT NOT LIMITED TO,

HEADS, VALVES, WIRES, PIPES AND FITTINGS THAT ARE DISTURBED

DURING CONSTRUCTION WILL BE REPLACED AT THE CONTRACTOR'S

EXPENSE WITH MATCHING EQUIPMENT. PRIOR TO CONSTRUCTION,

LOCATE THE EXISTING IRRIGATION EQUIPMENT AND PIPE IN THE

CONSTRUCTION AREA AND MARK LOCATIONS, USING MARKING SPRAY

PAINT FOR PIPE AND WIRE STAKE FLAGS FOR HEADS AND VALVE

BOXES.

13.PROTECT AND MAINTAIN ALL EXISTING FEATURES NOT DESIGNATED

FOR REMOVAL.

14.CONTRACTOR TO INSTALL PROPOSED STORM SEWER MAIN LINE

SYSTEM (EXCLUDING ROOF DRAIN CONNECTIONS TO PROPOSED

BUILDING) IMMEDIATELY FOLLOWING REMOVAL OF EXISTING STORM

SEWER TO PROVIDE DRAINAGE FROM PROJECT AREA DURING

CONSTRUCTION. INSTALL INLET PROTECTION AT EACH STORM SEWER

INLET

REMOVE EX. 8" DIP

STORM SEWER

EXISTING STEAM & CHILLED

WATER. SEE SHEET C-004

FOR REMOVAL NOTES

GENERAL DEMOLITION NOTES

N

0 10' 20'

BUILDING 1W

BUILDING 1

BUILDING 3

REMOVE CONCRETE STAIRWAY

REMOVE CONCRETE SIDEWALK

REMOVE EXISTING

STORM SEWER

FULL DEPTH SAWCUT AT JOINT

LINE FOR MINIMAL SIDEWALK

REMOVAL LIMIT (TYP)

REMOVE EXISTING

STORM SEWER

BULKHEAD EX. INV.

NW FIELD VERIFY

SIZE & INVERT

ELEVATION

SILT FENCE (TYP.)

REMOVE EX. 2" TREE

PROTECT EX.

CONCRETE STOOP

INSTALL TEMP 8" DIP PLUG

IN WATER MAIN UNTIL NEW

WATER MAIN SERVICE IS

EXTENDED TO SOUTH (SEE

SHEET C-003)

REROUTE EX.

ELECTRICAL LINE TO

AVOID PROPOSED

BUILDING & MAINTAIN

EX. SERVICE

BULKHEAD EX. INV.

NW FIELD VERIFY

SIZE & INVERT

ELEVATION

PROTECT EX.

CHILLERS

SEE ARCHITECTURAL

PLAN AS100 FOR

CONSTRUCTION FENCING.

PROVIDE TEMP. ABAAS

WALKWAY MIN 4 FT WIDE.

MAINTAIN DURING

DURATION OF PROJECT.

FIBER LOG

FIBER LOG

FIBER LOG

SILT FENCE

EXISTING STEAM & CHILLED WATERCWRCWS

MPSMPC

EX. STORM PASSES

BELOW BUILDING 1

EXISTING CHILLED WATER.

SEE SHEET C-004 FOR

REMOVAL NOTES.

ADDENDUM 01 08/07/20251