HomeMy WebLinkAboutChange Order 14, City Shops/HRDC Bus Barn with BN Builders, Resolution 4287dowling I sandholm I architects
JOINT OWNER CHANGE ORDER
Project: City Shops/ HRDC Bus Barn
1821 N. Rouse Ave
Bozeman, MT 59715
To Contractor: BN Builders, Inc
2066 Stadium Dr., Ste 102
Bozeman, MT 59715
The Contract is changed as follows:
Increase Contract Sum,
Date: August 18, 2010
Architect's Project No: 08-265
Contract Date: November 4, 2009
Contract For: General Construction
Reason for change:
Please see attached Summary of Mechanical Change Orders
Attachment(s):
CP #26
CP #28
CP #29
CP #30
CP #34
CP #36
Total Contract Sum Adiustment:
C.O. #14
Owner E
Architect M
Contractor IM
Field ❑
Other ❑
The original Contract Sum was $ 1,907,600.00
The net change by previously authorized Change Orders $,. 74,682.53
The Contract Sum prior to this Change Order was $ 1,982,282.53
The Contract Sum will be increased by this Change Order by the amount of $ 31,362.56
The new Contract Sum including this Change Order will be $ 2,013,646.09
City of Bozeman Contract Sum Adjustment:
The original Contract Sum was
The net change by previously authorized Change Orders
The Contract Sum prior to this Change Order was
The Contract Sum will be increased by this Change Order by the amount of
(80.09% of Total Change Order)
The new Contract Sum including this Change Order will be
HRDC Contract Sum Adiustment:
The original Contract Sum was
The net change by previously authorized Change Orders
The Contract Sum prior to this Change Order was
The Contract Sum will be increased by this Change Order by the amount of
(19.91% of Total Change Order)
The new Contract Sum including this Change Order will be
$ 1,049.231.41
$.,.,. 31,835.47
$ 1,081,066.88
$_ . 25,118-44
$ 1,106,185.32
$ 858,368.59
$ . .... 42,847.04
$ 901,215.63
6,244.12
907,459.75
Contract Time Adiustment:
The Contract Time will be increased by - zgLqJOJ days.
The date of Substantial Completion as of the date of this Change Order therefore is: August 15, 2010
JOINT OWNER CHANGE ORDER C.O. #14
Cost Breakout by Owner
Item -- I
Cost 11
% COB
Cost COB
% HRDC
Cost HRDC
Sump and Strainer Valve (CP#26)
$3,631,10
50.0%
$1,815.55
50,0%
$1,815.55
Unit Heater Change (CP #28)
$2,167,72
100.0%
$2,167.72
0.0%
$0,00
Revised fresh air ductwork (CP #2g)_
$7,516.19
50.0%
$3,758.10
50,0%
$3,75810:
Shop Ceiling Fan (CP #30)
$12,537.92
100.0%
$12,537,92
0.0%
$0.00
Additional Concrete at Rainwater Tank
Slab (CP #34)
$1,340,95
501.0%
$670.48
50.0% $670.48
Sand Storage Light Pole (CP #36)
$4,168.68
100.0%
$4,168,68
$0,00",
T o tal otal
$31,362.56
80,09% $25,118.44
1 19.91% $6,244.12
Not valid until signed by Architect, Contractor, and Owners.
Signatures:
Architect: Dowling Sandholm Architects
/' , ' I
By: ° 1,
Date: q A// 0
15 West 14 Street - Suite 103
Mike Wiseman
Helena, Mt 59601
Place Architecture
By:_
,' �7-r>
118 E. Main St
' Dater
Sash Kazeminejad
Bozeman, MT, 59715
Contractor: BN Builders, Inc
4
:z
B y: e �r-'
Date:
2066 Stadium Dr., Ste 102
6'jag /j/p4porowsri
Bozeman, MT 59715
Owner. City of Bozeman
By:�
Date q-zo-io
P.O. Box 1230
Chris Kukulski
Bozeman, NIT 59771
Human Resource
*' X - — 4
Bye =z�
Date:'/—/-6
Development Council
L ee Hn7e]bak6r
32 South Tracy
Bozeman, MT 59715
Rag 2 of 2
File 21
C0414—Joiritdoc
|)
Summary of Mechanical Change Orders
CP#2O- Sump Box and Strainer Valve
During construction of the roof drain lines and installation of the rainwater cistern, it was discovered that the
sump box originally specified to intercept roof drain flow on its way to the cistern would not work with the
depth of the drain lines The sump box's purpose was to catch heavy solids (dirt) and collect it before it
reached the cistern . In order to make it work with the depth and grade of the drain lines, it would have to be
modified in the field and be located at an inaccessible depth After further reviewing the sump box and its
intended purpose, it was determined that a better solution would be to catch lighter (organic) material before
it reached the rinkam, as this material would more adversely affect the water quality m the cistern Several
options were discussed by DSA and Stahly engineering, and an in-line strainer was determined to be the
most cost-effective and simple solution. Both the sump box and the strainer require periodic maintenance,
but the strainer could be placed in a more easily accessible location. Heavy solids in the water would settle
out io the tank and could be removed from the tank direotiy The pump in the tank ionna float, oo solids mi
the bottom do not affect its function.
CP#28- Unit Heater Oheogo
This change ix the result o[en incorrect unit heater model listed in the schedule. Bids were based onthe
scheduled unit, but when the unit heater was submitted for approval[, it was noticed that the bid model
submitted did not meet the specified requirements. The correct model is more expensive due to its size and
mounting configuration
CP#2Q- Revised fresh air ductwork
During the mechanical pre-construction meeting, the sub contractor responsible for the waste oil boiler
noticed that the proximity of the fresh air intakes |o the waste oil boiler would require multiple bends inthe
boiler's flue. This was the original intent of the design, and met code requirements for the installation. The
sub contractor was adamant about keeping the flue straight in order to maintain the best draw and hottest
exhauStr which would result in better efficiency of the boiler and less soot (and therefore maintenance) in the
flue. While evaluating a suitable relocation of the fresh air intakes, the design team was constricted by
proximi1yloibgwesteoi|boi|erf|ue(1Ofnoto|esranne).ihogaobVi|erf|uea.andtheohnpmndbunbexn
exhaust vents There was also very littie room to run the large duct required in the ceiling of the office area It
was decided in route the intake to the north wall of the bus barn building, which would take the large vent off
the roofs (resulting in fewer roof penetrations) and well away from any exhaust source. This ended up being
an ideal location for the Intake, and a better overall solution than the original design. The sub contractor's
concerns were corroborated by the design team inmlater experience ona different project. |n that case, the
waste oil boiler Installed had multiple bends , and serious problems arose both in function of the boiler and
in adverse affects on nearby materials (heat damaQm) That project involved a different sub contractor, and
was also installed per code, but the current sub contractor's insistence and experience suggest these units
require more care during installation
55 West 14 Street Suite 103 Me�ena, MIT 59601
406-457-5470 ph 406-495-0063 fax
2O42 Stadium Drive Suite 2 Bozeman, IVIT59715
406-556-0113 ph 406-556-0114 fax
.uom
CP #30 - Big Ass Fan
This item was added to the project at the request of the Owner. It was originally requested and intended to
be part of the project, and was mentioned in earlier meeting minutes. The design team erroneously omitted
this item during design, and subsequent reviews did not catch it until after the bid had been awarded. The
Owner had originally requested a specific fan model, the "Big Ass Fan ", and this item was priced as an
addition to the project While the initial cost of the item is significant, the design team still recommends this
item based on the following points: 1) A single Big Ass Fan(BAF) is sufficient to provide necessary air
movement within the shop space, while it would take up to eight standard sized fans to move the same
amount of air. 2) The BAF is designed and constructed to run maintenance free for long periods of timer
and has a good performance track record 3) When considering installation costs, the unit cost of the BAF
compared to standard sized fans comes down considerably, as there is only one fan to wire and install.
4)When considering life cycle costs, the cost of the BAF comes down again as there is only one fan to
maintain, and its efficiency will require less power to operate. 5) Most importantly, a minimum of overhead
space is taken up by the fan, which is critical in a space with overhead air drops, vehicle lifts, a crane and
overhead fluid drops.
CP #34 - Additional Concrete for Rainwater Tank Slab
During installation of the sewer lines and finalization of grades for sewer and roof drain lines, the elevation
and orientation of the rainwater cistern was modified slightly (also relates to CP #26.) The cistern requires a
minimum depth of installation to protect against damage from vehicular traffic, and that depth varies based
on the materials directly above the tank. When the tank elevation was modified, it was put at the edge of the
threshold for safety. Once asphalt paving was placed over the tank, its depth would be adequate, but that
installation may not take place for some time. A better solution, since the tank had been re- oriented parallel
to the building, was to simply extend the concrete apron over the tank. This would provide immediate added
protection, and would provide better, more stable protection than asphalt. Because the road base was
already in place and a slab already scheduled to be poured, the added cost was minimal.
CP #36 - Sand Storage Light Pole
This item was added to the city planning review drawings as part of the sand storage facility Drawings for
the sand storage facility were included in the shops building drawing set in order for the Owner to get both
through the planning permit process at the same time, although they were separate projects. The light pole
was not initially part of the shops building project and was not included in the bid for this project. Since the
contractor is on site and working already, it made sense to add this item to a construction contract already in
place as a change order. Although it will show up as part of the contract budget, this item will be paid for by
separate funds added to the project and will not impact the Owner's original budget for the project.
;Members American Institute of Architects
B N B
ThLirsday, AUgUSt :12, 2010
Kke Wiseman
Dowhrig Sandh*n Architects
55 West 14th Street
Helena, MT 5960
suer Mike Wiseman,
1 letter is to reqUest authorrzaUon to proceed with the Mowing extra works�
C�P Number. 26
Description Sump Box and Strainer Valve - RFI #19 - Revised
Proposed Amy, $ 3,631 ®1
Days Requested: 0 days
15�:qpe f Iffi s ummary):
p_ qrk (see attached for detailed coil s
Provide labor, eqwprnent, and materials for one 10" strainer, anchors from floor and cefling, and one 10"
kig-style butterfly valve in roof drain riser in bul0cling for a compRete system. per RFT 4
P ease rwu bdov and return a capy of this latter to indicate your acccptanco of this oxtm wark ard ap the
sts may appiy if authorizabon is receiq��d after
pnce for this v;ark, AddUriai w
KQu0dcrs has proceeded vmb the v per PreVIOU5 ROM approval (atLached). This change proposal represent,,
Ore fmal prtce for this wark.
El 6N6uii& fras pros eaded with ths, work baeb cm owner approvai vo orna�l (sce attaChed) ar vorbzA directicru,
'Tb's cha proposa? repre��..nt the fin.r., price for th4, work,
Aa vial derv, Vic
n c
Accepted by: Date,
Dowling Sandholm Ambiteco
I — Cn — nt — ra'ctor
i tescripfion
BNBudders, Inc,
BNB lders, Int:.
Overhead & Profit
OH & Proft Subcontractor's
$mo
$330.10
MUM
G& Pl,[JM'B,IN(.') AND MECHANICAL INC.
RO. BOX 21613
BILL] NGS MONT 5 9 � 0 1
PI-110NE: 406-2,56-6016
FAX: 406-256-6393
DA H : () T1 ()
TO: BNBuilders Fina] Price 8/1010
ProJect: HRIK'BUSBARN
Change Order per RI'l )-i 19
Provide and instal I one 10" strainer, and oj, 10" 1 ug-style butterfly valve in roof drain
riser in building, Anchor 1rom floor and ceilng.
J Will n,ot he responsible for anv �N arranly issues w ith tramp in lank.
Price o f chanp order +$3,301,00
Please call it'any questions.
Approved bN ... . ...... Date:
Qq.
Cost
Totat
L abor
is
65,00
Sl, 170.00
'Material
Strainer (4 flours):
1
1972AN)
S .00
Bkjuerfl� valve 0 hours)
1
605 )
$67100
PVC Flanges (3 hours)
2
408,01)
$453 A
Mflt kiisand gaskets (6 hours)
4
129.00
$143.00
Anchors, and hangers (2 hOUrs)
36
181 JW
s'20 1, 00
Credit for SJ3- I
Labor
5
65.0(.1
-$- ")
Malerial
1
922,00
-S1,024.00
I 0" c lean out on riser
1
180,00
-$1800)
J Will n,ot he responsible for anv �N arranly issues w ith tramp in lank.
Price o f chanp order +$3,301,00
Please call it'any questions.
Approved bN ... . ...... Date:
&KB
BNVs' nlels, WC
P,equest for Information
RE No: 19
BNB Plroject # 50901.2
16 12 IN R` z k c A � �, "
B= SMS
Da te! , mn""Ch 23, 2010
rx Kum v4scivivin
Dav,! ANJIVIZ
55'We 14th Strcct
MIT 59601
Teh 406-55b-0 113
C
"Uhmitte'd ay. )Cnae Benner
inc
293 R0120 Dri'VC'
F;mrice KT 59333
Te 4C'" 375 Faxa 1106 377 5921
r.� Uln I) f3ax
Sabconfrorturr G &T Numbmg and r'
Quor.Von
77" _UFQ sped��Cd — for (5 R Su"Ith
P Nr algae m' Sump df,"tad,
5rubcaz;b RR No;
EMMIMAMMM,
n; rle yr - �t,h tj p anjC!9j e,C adcs on SI(E-4, atta&cd,
Answer
RRO Response -
ller t h u , unit, SB. 1 from the scoPe of work, If this Unit has been purchi, it will need to be rc!turnod
and have, the 1mount of that unit to tiia �3POif2d t0wardsthe Lost inipact of this charm e - j e, Nea refer trr.)
the attached sketch SKE 145 for a clarificat:c;-v d ate r tank
:i t p strain any sohds from the r;jjrj w,
'"L
-2,L- 22
R r r of S 4J 1 U 1 he r,iin water leaders vinjl enter I building tight to st
ructUre and both Ve into a
Di
7 7,71" corrim
1 -mwj s shown, The ,��-,q-jf-o;+pcpInf; wdl run dorm' n in the 'Bu
cianta�nment Floorn" where tme arida butterfiy valve wffl be installed In an ziccessVe locaton
irm shall continue to below the slab and turn 90 degrees, I he plPing wW
for sr�rvicc. rh��-ca� P I,
-- addihorial six feet before any imaterial transitlons are rnade. The piping shall then
con ;a or ac
tmix to the underp xess to the
,round storage tank per pions without ally additiOnZO operiinF
r�)mer Lind ro�at�Mfl vaNe
rwi,rrin-i'Zontractor required to submit specificat'V'l data Of S t d t
Parlor to ordenW,.
ph?ase contact Mic if you have Lmy further questI0115,
jison HamIr — DC
Answered by
Tort Ca,' pvry &
Date Amvjcred�
Fax
fjlf a
Ro-
a r} I Ctl 'm
REM
10"0 MR PIPE—`
PROMDE PROPER
SUPPORT --,
/- SHUT-OFF VALVE�
M
10 slim.
�� - } ]
Em
m
Jenae'Oenner
�MMMMW�XWZMM
From: Michael Wiseman Imwisernan@dowlingsandholm corn]
Sent: Wednesday,),Ljgust 04, 2010 5:07 PM
To Brian Nostrant°, Jenae Benner
Cc: 'Sash Kazeminejad'
SLib ject: pvc drasn
Attachments Image OCIIjPg
Follow Up Flag: Follow Lip
Flag Status: Completed
Scott says OK for pvc on the rain, drain. He didn't know if the strainer valve came in a pvc housing, but thought pvc woWd
work fine elsewhere
Mike
dowling I sandholfri I artrilftt'tt",
Michael Wiseman, AAA
Dowfing Sandholm Architects
2042 StadWm Drive, Sufto 2
Bozeman, IVIT 59715
MwNm r aicwiierrinandhcs4rre.r
406 65"113
406 556-01 fax
hil"(wmation froni FSET NOD32 Antivirus, version of vh signature database 5278 (20100
The niessage %ass ch,ecked b� FSFIT OD32 And"irLIs.
!Iql : v-w�v C se t. Coll 11
Iin
n
Monday, August 2, 2010
Mike Wisernan
Dowling Sandho@m Architects
55 West 14th Street
lielena, MT 59601
RE: Change Proposal ., C'P# 28
So ity Bus Barn - 509012
Dear Mike0seman,
Thps letter is to request authorization to proceed t vtlj the following extra work:
CP Number-, 28
Description- Unit Heater Change Per RFI #28 - Revised
Proposed Amt: $ 2,167.72
Days Requested. 0 days
5 op f-WQrk (see attached for detailed cost surnrnary)�
Provide labor, equipment, and materials for Marley U1+520 unit heaters with integral thermostat and ceiling
mounting hardware instead of the unit heaters specified in the drawings per RFI #28 for a complete system,
Pkzose ��ign bc1c and returri d COPY Of this [Efter to indirat'e ymir acceptarice of tNq extra work and approve th-
pace for tie -s work. Additional costs i Ppply if authonzi, is reurnved after
BNGuillders Jria5; proceeded mth tNs vmrk per premirs: RDI approval (attached), This change pro. posal represents
the final pue for this work,
ENBWders has Proceeded with this work based on oirvner approvai via emaii (s's e attached) or verbaV direction,
MIS L11 proposiJ represents the final price for fts work.
Accepted by:
RM
4NDuilders, Inc
DoWing Sandholm Architects
Contractor
Two ��arey,,�H-520 Un it Ideater's
7 m
UvtI I 1UdU & HVIL $0.00
BNBudders, Inc. OH & Pr'Ofit SUbcontractors $197,07
Total: $2,167.72
G&TPLUMBING AND Mt, INC,
P-O BOX 21613
BILLINGS MO NT 59101
PHONE 406-256-6016
FAX� 406-256-639.3
R) BNBuilders
Project: 11RD('B1.11d1BARN
Change Order per R I'l #'2)8
Provide and install.-
I " wo Qmark'Flectric Unit lieaiers
Labor Cost to install t " f katers
Deduct Two Redd-1 FlIectric Heaters
Deduct tbT 1, a bor for Red d -1 -1 f "- lee tri c I I eaters
Revised 7/27110
(,"oinfojl systems price $1,87110
Total pricc of'change order $ 1,970.65
Please call if any questiolls.
125 Central Avej
Bozeni,an, MT 59718
006) 388-2292
Name / Address
G & f Plumbing & Mcclialliccit
PO Box 21613
ffillhigs, MT 59104
Date
Trackm g
7 11 2010
Project
Project
I MDC BAS Ranr,Cml Nhop,
ftern
Description
Qty
cost
Aniount
Markup
'Total
0 OH
%fisc
976 (A
47 oo
1,013 60
M
1 THA2 Fhermwa.x
2
1?rs
?52 Ou
25 20
277 20
M
o)uot Irom
C)2 oil
194 011
115
.W)
osc
I ailO ow
r I wo Met? I flour,,
� 9
310
63 NP
695 10
t, onin'm coal , D Rac(nn 1V, Jt
'
'c
Crvdit llvr I lrqvinat Bid to Rcdd-f 'Will
2
` 14p5 .W
-210,00
-21 Ott
-2m oo
floater
Mvx
I Credit Ior Ongmid Labor One Man Ono
1
-71) 001
191 00
-7 W
HOUI 0011111'�10,11 D �A� P, IlOkNRII A'dj,,C RMe
1-relpfit, Chmgc t P, ,
2
-210 00
-419 Oil
-40 Oit
t'han➢ wu for�our busi n
1
. .. ----i—Tota
B N�B
10INWIM Inc,
Request for Information
RF1 No: 28
; City BUS Barn
182 W Rny J ' , ONS Project # 509012
Swomn VT 5plL
DW AW 4 1, ?010
Subffiiitted To; Mike Wiseman
D0041Q SaldtWff Arcli tects
F5 tog 14th Swt
Wer% MT Sgeol
Te - r J6-556-0113
Subject E,ectr , L n I �featers
OiscOEre: ', tac mca➢
SO Jenae Senrier
S"'2,,dder��, nc
293 Rodeo Eirwo
Fhmn% m" SM33
1 'Lli: 106-375 -6920 Fax 40&375-6q2,1
DocunrenfRefbrcna� P2 01
s0cotliTactor' C-rnfo t systelrn�
Spec Section:
Subcon twctvrRFr,Af0.
Question
Date lteqWr 1 6/1112010
ease tilo c a rre ")Qnc�a lice bz!ow frorn KKe Fct
J rott:Erl, ai recur nec� e , f ' ` that DC WiMmg noted on EJH-1 & Sim teat tt,2 Wattar
5CnCdL;'Ce. � chc w3h Out SuPsWer and h2 sad Ma to subnotted on the exact rrtnj a t d j (.' SLbmauml is leFs �tia
Ll,d dCCVIPw t% MarkA is the paaxt company (9 W&L M tat Poin t I Wed and a t , f C re an rnodd llunIber tt�at wo.5 In tha
*ed to Swh a DC &yMmmg aN te We
mO IN 3 MMMW hA 13 MMe and W Me Womit rranufact(jr(.a 5fior,!d h-ivc bC!erl t- aild the r-10del munibur shid h3vo
been LYS= nem S a mt d Vfcrelice,-, t etv��een the t�o uljjrq Ille bK)POS, (REMnCe Wr than bemg the cod, if; he
C0nt1gL'a,,0r1, the U"WO M i i h M e ke a wn
electrics yisemers for the t is sirg! e Phase and " t W aK fm "Is " Hm ce A TlywWr W9 dObeme a that we
�s 3 cm Wl'c 'S h0w the dectrickan bid it), Ptea
°C't us ki ncv you "WantLItw to o with th s s tuatm
Pone now Wt our, WQ h+ iten' th'.4 �,,ubrtined an were moat was spttc1fi(XI ul tN bid documents. If Me Engmee wou d
Ixe 3 U uql ter ri!ease Provide the iiftrmauon tar the: r u (!Q: Manufacturer, mood noinber, etc,)
Answer
KH 428
Inn W and mstaH the \Jafly 116520 unif heater �NjLh ). ,t, I T i i g
cc I I I
maw= hmAuam
An s we md bi n
tcp,t Cc, Coaort
Date Answere±L
---� / �TJo
Pax NOWS
P41 1 rtt
Friday, July 23, 2010
Mike Wiseman
Dowling Sandholm Architects
55 West 14th Street
Helena, MT 59601
RE: Change Proposal - CP# 29
Bozeman City Bus Barn -509012
Dear Mike Wiseman,
This letter is to request authorization to proceed with the following extra work:
CP Number: 29
Description. Revised Fresh Air Ductwork - ASI #11
Proposed Amt: $7,516.19
Days Requested. 0 days
Scope .qf Wqr-k (see attached for detailed cost summary):
Provide materials, labor, and equipment to install the revised routing of the fresh air ductwork and louver for a
complete system as per ASI #11.
Please sign below and return a copy of this letter to indicate your acceptance of this extra work and approve the
price for this work. Additional costs may apply if authorization is received after .
F1 BNBuilders has proceeded with this work per previous ROM approval (attached). This change proposal represents
the final price for this work,
F1 BNSUIlders has proceeded with this work based on owner approval via email (see attached) or verbal direction.
This change proposal represents the Final price for this work,
Submitted by:
i nae 4ien
IV ts, Inc
Accepted by: Date:
Mike 75 — se — man
Dowling Sandholm Architects