Gus Harriosn Correctional Facility Smoke Purge System Repair Repalce Addendum 1.pdf
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- Solicitation number
- RFQ 171 260000000384 3
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- Michigan
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This is a Construction Bid Addendum No. 1 issued by the Michigan Department of Technology, Management and Budget (DTMB), State Facilities Administration, Design & Construction Division for the Gus Harrison Correctional Facility Smoke Purge System Repair/Replace project (File Number 472/25081.GSA). The addendum, dated July 20, 2026, was issued by Matrix Consulting Engineers with Project Director David Lenz and Professional Troy Thelen. The addendum includes three primary items: the pre-bid meeting attendance sign-in sheet, re-issued electrical sheets E-506, E-600, and E-601 with clarifications regarding Base Bid, Alternate #1, and Alternate #2 work specifications, and a revised bid due date extended from July 29, 2026 to August 5, 2026. The addendum must be acknowledged by bidders in the bid summary and bid form, as failure to acknowledge may result in bid rejection.
The addendum provides detailed electrical specifications for Building 500 (Warehouse) work at the correctional facility, including the installation of new 250-ampere, 3-phase circuit breakers in the existing SSBPB switchboard for Housing Units 4 and 5, disconnection and reconnection of existing electrical conduit and wire, splicing of conductors in new NEMA 4 pullboxes, and installation of new underground conduits with 4-inch concrete encasement using hydrovac trenching methods. Additional responsibilities assigned to the contractor include performing an arc flash study, breaker settings calculations, fuse size determinations, trip settings, and preventative maintenance on all medium voltage switchgear and cables. The project involves coordination with existing electrical infrastructure including a 1000-kilowatt/1250-kilovolt-ampere emergency generator and temporary generator connection provisions.
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Text version
DTMB-0414 (Rev 6/25)
DEPARTMENT OF TECHNOLOGY, MANAGEMENT AND
BUDGET
State Facilities Administration Design & Construction Division
CONSTRUCTION BID ADDENDUM NO. 1
This form identifies an Addendum to Bidding Documents, and incorporates interpretations or clarifications, modifications, acceptance of proposed “or equal” materials, and other information into the Bidding Documents. Addenda will be numbered by the Professional and distributed through www.michigan.gov/SIGMAVSS as an attachment.
TO:
ALL BIDDERS
DATE ISSUED 7/29/2026
PROJECT NAME
Gus Harrison Correctional Facility – Smoke Purge System Repair/ Replace
FILE NUMBER
472/25081.GSA
PROFESSIONAL
Matrix Consulting Engineers
PROJECT DIRECTOR
David Lenz
BID OPENING DATE:
7/29/2026
ADDENDUM ITEMS:
1. Attached is the pre-bid meeting attendance sign-in sheet.
2. Re-Issued Sheets E-506, E-600, and E-601 (Attached). Updated to include clarifications between
Base Bid, Alternate #1, and Alternate #2 work.
3. Revised bid due date from 7/29/26 to 8/5/26
ACKNOWLEDGEMENT: This Addendum must be acknowledged by the Bidder in the space provided in the Bid Summary and Bid Form. Failing to acknowledge Addenda may be cause for the Bid to be rejected. Addenda will become part of the Contract Documents.
PROFESSIONAL: Troy Thelen, Matrix DATE: 7/20/2026
APPROVED BY:
PROJECT DIRECTOR: David Lenz DATE: 7/20/2026
8/5/26
David Lenz Line
ELECTRICAL DEMOLITION NOTES
T 15 KVA
T 30 KVA
TS TS
EXIST PANEL "RP-J"
EXIST. 1600A SWITCHBOARD
"SSBPB"
EXIST 800A AUTO TRANS.
SWITCH "ATS-SEMPB"
EXIST 30 KVA TRANS
EXIST DIS. PANEL "DDP"
EXIST. PANEL "RP-X"
EXIST 15 KVA TRANS.
EXIST PANEL "LP-XX"
EXIST DIS. PANEL "MPB"
SECTION A
EXIST DIS. PANEL "MPB"
SECTION B
EXIST 1600A AUTO TRANS.
SWITCH "ATS-SSBPB"
EXIST DIS. PANEL "SEMPB"
EXIST 1600A ENCLOSED
CIRCUIT BREAKER
EXIST UNDERGROUND ELECTRICAL VAULT
EXIST TEMP GENERATOR
CONNECT CABINET
EXIST L5-15R RECEPT FOR
TEMP GEN. START SIGNAL
EXIST L14-30R RECEPT FOR
TEMP GEN. TRAILER
EXIST NEMA 4 JUNCTION BOX
EXIST BLDG 500 SUB #501
1. SEAL ALL PENETRATIONS WITH LIKE MATERIAL TO MAINTAIN ORIGINAL
RATING. FIRE CAULK ALL FIRE RATED WALLS TO MAINTAIN ORIGINAL FIRE
RATING.
GENERAL ELECTRICAL NOTES
ELECTRICAL KEY NOTES
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
INSTALL (1) NEW 250A/3P CIRCUIT BREAKER IN EXISTING PANEL 'SSBPB' FOR
HU4.
INSTALL (1) NEW 250A/3P CIRCUIT BREAKER IN EXISTING PANEL 'SSBPB' FOR
HU5.
NEW NEMA 4 JUNCTION BOX
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
NOT USED.
DISCONNECT & PULL EXISTING CONDUIT & WIRE BACK TO EXISTING
ELECTRICAL VAULT FOR HU4. EXISTING WIRE TO BE RE-USED FOR FEED TO
NEW PULLBOX.
DISCONNECT & PULL EXISTING CONDUIT & WIRE BACK TO EXISTING
ELECTRICAL VAULT FOR HU5. EXISTING WIRE TO BE RE-USED FOR FEED TO
NEW PULLBOX.
ALTERNATE #1
ALTERNATE #2
21ALTERNATE #1
ALTERNATE #2
ALTERNATE #1
ALTERNATE #2
ALTERNATE #2
ALTERNATE #1 A1
A1
A1
A1
E-506
TRB
JFS
BLDG 500-WAREHOUSE-
ELECTRICAL PLAN
file no.
checked by drawn by consultant issue date contract order no.
consultant job no.
24239.00
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472/24055.DPL
funding code sheet description
HOUSING UNIT 4
KEY PLAN
HOUSING UNIT 5
SUPPORT
SERVICES
7/8/2026 CD SET
BUILDING
7/20/2026 ADDENDUM #1
N BLDG 500-WAREHOUSE-ELECTRICAL PLAN
SCALE: 1/8" = 1'-0"
0 1 5 10 20
G 800A 3P
1600A 3P
NEUTRAL BAR
GROUND BAR
BONDING JUMPER
REBAR IN CONCRETE
EQUIPMENT PAD
EXIST CONCRETE ENCASED ELECTRODE
UFER GROUND
#1/0 BARE CU
EXIST
#6 BARE CU
EXIST
3/4" X 10'-0" DRIVEN
GROUND RODS AT
EACH CORNER OF
EQUIPMENT PAD.
K K
KIRK-KEY INTERLOCK BETWEEN
BREAKER AND CAM-LOCK
CONNECTION ACCESS DOOR
CAM-LOCK CONNECTORS FOR MDOC
TEMP GENERATOR TRAILER FOR WHEN
EMERGENCY GENERATOR IS OFF LINE
FOR MAINTENANCE.
EXIST
TEMP GENERATOR CONNECTION CABINET
PER ASCO 300 DUAL PURPOSE QUICK
CONNECT PANEL W/ BREAKERS
800A, 480Y/277V, 3Ø, 4W
EXIST
ATS-SSBPB
1600A, 480Y/277V, 3Ø, 4W
4 POLE
EXIST BLDG 100 & 200
CONDUCTORS THROUGH
4" UNDERGROUND CNDS
TO BLDG 100 TO BLDG 200
EXIST JUNCTION BOX ON BLDG EXTERIOR
NEMA 4 ENCLOSURE
EXIST UNDERGROUND
ELECTRICAL
VAULT
800A 3P
30A 3P
60A 3P
60A 3P
100A 3P
60A 3P
150A 3P
70A 3P
400A 3P
20A 3P
15A 3P
60A 3P
800A 3P
1600A 3P
600A 3P
3000A 3P
800A 3P
EXIST MEDIUM VOLTAGE
SWITCHGEAR EXIST
NORTH CAMPUS SUBSTATION
1500/2000KVA AA/FA, 12470V:480Y277V
1600A 3P
EXIST
1600 ENCLOSED
CIRCUIT BREAKER
EXIST 1600A TAP
LENGTH OF TAP CONDUCTORS
MAY NOT EXCEED 25'
30A 3P
600A 3P
PANEL
DISTRIBUTION
"DPP"
100A 3P
PANEL
"RP-J"
NORMAL POWER
FEED TO BUILDING
500 ATS
WAS REMOVED
NO LONGER IN USE
1600A 3P
J
PANEL
BUILDING 500
"LP-XX"
PANEL
BUILDING 500
"RP-X"
30 KVA
TRANSFORMER
BUILDING 500
15 KVA
TRANSFORMER
SALLY PORT
GUARD TOWER
EXERCISE YARD
GUARD TOWER
HOUSING
UNIT 4
HOUSING
UNIT 5
BUILDING
PANEL
EMERGENCY
EMPB
BUILDING
PANEL
EMERGENCY
BUILDING 500
45 KVA
TRANSFORMER
LP/GAS VAPORIZER 9 KVA
TRANSFORMER
SPARE
30A 3P
30A 3P
40A 3P
40A 3P
40A 3P
50A 3P
BUILDING
PANEL
EMERGENCY
HOUSING
UNIT 2
PANEL
EMERGENCY
HOUSING
UNIT 1
PANEL
EMERGENCY
HOUSING
UNIT 3
PANEL
EMERGENCY
BUILDING
PANEL
EMERGENCY
HOUSING
UNIT 6
PANEL
EMERGENCY
EXIST BUILDING 500 PANEL "MPB"
600A, 480Y/277V. 3Ø. 4W
DISTRIBUTION PANEL "SEMPB" SECTION A
800A, 480Y/277V, 3Ø,4W
DISTRIBUTION PANEL "SEMPB" SECTION B
800A, 480Y/277V, 3Ø,4W
EXIST
ATS-SEMPB
800A, 480Y/277, 3Ø, 4W
4 POLE
EXIST
SWITCHBOARD "SSBPB"
1600A, 480Y/277V. 3Ø, 4W
EXIST EMERGENCY GENERATOR
1000KW/1250KVA, 480Y/277V, 3Ø. 4W
DISCONNECT & PULL EXISTING CONDUIT & WIRE BACK TO EXISTING
ELECTRICAL VAULT. EXISTING WIRE TO BE RE-USED FOR FEED TO NEW
PULLBOX.
EXISTING EQUIPMENT TO REMAIN.
EXISTING CONDUIT & WIRE TO REMAIN.
PANEL
EXISTING
'EMPB'
480/277V 3Ø, 4W
100A MCB
PANEL
EXISTING
'EMPB'
480/277 3Ø, 4W
60A MCB
RISER DIAGRAM
DEMOLITION NOTES
250A 3P
PANEL
EXISTING
MPB
HU4
250A 3P
PANEL
EXISTING
MPB
HU5
EXIST UNDERGROUND
ELECTRICAL
VAULT
1 1
EXIST
EXIST
EXIST
EXISTEXIST
EXIST
EXIST
EXIST
EXIST
EXISTEXIST
EXIST
EXIST
EXISTEXIST
EXIST
EXISTEXIST
EXIST
EXIST
EXIST
EXIST
EXIST
EXIST EXIST
EXIST EXIST EXIST
EXIST
EXIST
EXIST EXIST EXIST
EXISTEXIST
ALTERNATE #1ALTERNATE #2
A1
A1
A1 file no.
checked by drawn by consultant issue date contract order no.
consultant job no.
24239.00
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472/24055.DPL
funding code sheet description
7/8/2026 CD SET
7/20/2026 ADDENDUM #1
BUILDING 500 RISER-DEMO
SCALE: NTS
EXISTING ELECTRICAL
RISER DIAGRAM
1. CONTRACTOR IS RESPONSIBLE FOR ARC FLASH STUDY, BREAKER SETTINGS, FUSE
SIZES, AND TRIP SETTINGS.
2. PREVENTATIVE MAINTENANCE IS TO BE PERFORMED ON ALL MEDIUM VOLTAGE
SWITCHGEAR AND CABLES.
GENERAL ELECTRICAL NOTES
ELECTRICAL KEY NOTES
INSTALL NEW 250A/3P CIRCUIT BREAKER IN EXISTING PANEL 'SSBPB'.
RUN EXISTING (6) #250 KCMIL, (1) #1/0 GND. IN NEW 4" CND TO NEW NEMA 4
PULLBOX.
SPLICE EXISTING (6) #250 KCMIL, (1) #1/0 GND. TO NEW (6) #250 KCMIL, (1)
#1/0 GND.IN NEW 4" CND IN NEW NEMA 4 PULLBOX.
HU4 HU5
EXISTING HU4 CONDUCTORS
THROUGH NEW 4"
UNDERGROUND CNDS WITH 4"
CONCRETE ENCASEMENT TO
EXISTING UNDERGROUND
ELECTRICAL VAULT. ALL
TRENCHING SHALL BE
PERFORMED USING HYDROVAC.
NEW JUNCTION BOX ON BLDG EXTERIOR
NEMA 4 ENCLOSURE
NEW
250A 3P
NEW
250A 3P
NEW
(6) #250 KCMIL,
(1) #1/0 GND.,
(1) 4" CND.3
G 800A 3P
1600A 3P
NEUTRAL BAR
GROUND BAR
BONDING JUMPER
REBAR IN CONCRETE
EQUIPMENT PAD
EXIST CONCRETE ENCASED ELECTRODE
UFER GROUND
#1/0 BARE CU
EXIST
#6 BARE CU
EXIST
3/4" X 10'-0" DRIVEN
GROUND RODS AT
EACH CORNER OF
EQUIPMENT PAD.
K K
KIRK-KEY INTERLOCK BETWEEN
BREAKER AND CAM-LOCK
CONNECTION ACCESS DOOR
CAM-LOCK CONNECTORS FOR MDOC
TEMP GENERATOR TRAILER FOR WHEN
EMERGENCY GENERATOR IS OFF LINE
FOR MAINTENANCE.
EXIST
TEMP GENERATOR CONNECTION CABINET
PER ASCO 300 DUAL PURPOSE QUICK
CONNECT PANEL W/ BREAKERS
800A, 480Y/277V, 3Ø, 4W
EXIST
ATS-SSBPB
1600A, 480Y/277V, 3Ø, 4W
4 POLE
EXIST BLDG 100 & 200
CONDUCTORS THROUGH
4" UNDERGROUND CNDS
TO BLDG 100 TO BLDG 200
EXIST JUNCTION BOX ON BLDG EXTERIOR
NEMA 4 ENCLOSURE
EXIST UNDERGROUND
ELECTRICAL
VAULT
800A 3P
30A 3P
60A 3P
60A 3P
100A 3P
60A 3P
150A 3P
70A 3P
400A 3P
20A 3P
15A 3P
60A 3P
800A 3P
1600A 3P
600A 3P
3000A 3P
800A 3P
EXIST MEDIUM VOLTAGE
SWITCHGEAR EXIST
NORTH CAMPUS SUBSTATION
1500/2000KVA AA/FA, 12470V:480Y277V
1600A 3P
EXIST
1600 ENCLOSED
CIRCUIT BREAKER
EXIST 1600A TAP
LENGTH OF TAP CONDUCTORS
MAY NOT EXCEED 25'
30A 3P
600A 3P
PANEL
DISTRIBUTION
"DPP"
100A 3P
PANEL
"RP-J"
NORMAL POWER
FEED TO BUILDING
500 ATS
WAS REMOVED
NO LONGER IN USE
1600A 3P
J
PANEL
BUILDING 500
"LP-XX"
PANEL
BUILDING 500
"RP-X"
30 KVA
TRANSFORMER
BUILDING 500
15 KVA
TRANSFORMER
SALLY PORT
GUARD TOWER
EXERCISE YARD
GUARD TOWER
HOUSING
UNIT 4
HOUSING
UNIT 5
BUILDING
PANEL
EMERGENCY
EMPB
BUILDING
PANEL
EMERGENCY
BUILDING 500
45 KVA
TRANSFORMER
LP/GAS VAPORIZER 9 KVA
TRANSFORMER
SPARE
30A 3P
30A 3P
40A 3P
40A 3P
40A 3P
50A 3P
BUILDING
PANEL
EMERGENCY
HOUSING
UNIT 2
PANEL
EMERGENCY
HOUSING
UNIT 1
PANEL
EMERGENCY
HOUSING
UNIT 3
PANEL
EMERGENCY
BUILDING
PANEL
EMERGENCY
HOUSING
UNIT 6
PANEL
EMERGENCY
EXIST BUILDING 500 PANEL "MPB"
600A, 480Y/277V. 3Ø. 4W
DISTRIBUTION PANEL "SEMPB" SECTION A
800A, 480Y/277V, 3Ø,4W
DISTRIBUTION PANEL "SEMPB" SECTION B
800A, 480Y/277V, 3Ø,4W
EXIST
ATS-SEMPB
800A, 480Y/277, 3Ø, 4W
4 POLE
EXIST
SWITCHBOARD "SSBPB"
1600A, 480Y/277V. 3Ø, 4W
EXIST EMERGENCY GENERATOR
1000KW/1250KVA, 480Y/277V, 3Ø. 4W
PANEL
EXISTING
'EMPB'
480/277V 3Ø, 4W
100A MCB
PANEL
EXISTING
'EMPB'
480/277 3Ø, 4W
60A MCB
250A 3P
PANEL
EXISTING
MPB
250A 3P
PANEL
EXISTING
MPB
EXIST UNDERGROUND
ELECTRICAL
VAULT
EXIST
EXIST
EXIST
EXISTEXIST
EXIST
EXIST
EXIST
EXIST
EXISTEXIST
EXIST
EXIST
EXISTEXIST
EXIST
EXISTEXIST
EXIST
EXIST
EXIST
EXIST
EXIST
EXIST EXIST
EXIST EXIST EXIST
EXIST
EXIST
EXIST EXIST EXIST
EXISTEXIST
NO LONGER IN USE
EXISTING HU5 CONDUCTORS THROUGH NEW 4"
UNDERGROUND CNDS WITH 4" CONCRETE
ENCASEMENT TO EXISTING UNDERGROUND
ELECTRICAL VAULT. ALL TRENCHING SHALL BE
PERFORMED USING HYDROVAC.
NEW
(6) #250 KCMIL,
(1) #1/0 GND.,
(1) 4" CND. 3
ALTERNATE #1ALTERNATE #2
A1
A1
A1
REVISED ELECTRICAL
RISER DIAGRAM
file no.
checked by drawn by consultant issue date contract order no.
consultant job no.
24239.00
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472/24055.DPL
funding code sheet description
7/8/2026 CD SET
7/20/2026 ADDENDUM #1
BUILDING 500 RISER-NEW
SCALE: NTS
| DTMB-0414 (Construction Addendum) |
| Sign In Sheet |
| E506-2423900-24x36 |
| E600-2423900-30x42 |
| E601-2423900-30x42 |
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