HomeMy WebLinkAboutContract 42509-CO1FORT WORTH -.
Project Name! Milam Storm Drain Improvements
Client Project #(s) 00482
City of Fort Worth
Change Order Request
CITY SECRETARY~ CONTRACT NO. Zgfi/-(Q I
City Sec# 42509 ....._ _____ __,
~-----------------------------------'
Project Description Drainage imp rovements for Milam and intersecting streets from Meadowbrook to Van Natta
Contractor! Conatser Construction Change Order# Date 4/26/2012
City Project Mgr . ._I _M_ik_e_P_e_rk_in_s __________ _, City Inspector Mark Owen ~--------------'
Dept. TPW Water Sewer
Original Contract Amount $859 ,569 .50
Extr as to Date
Credits to Date
Pending Change Orders (in M&C Process )
Contr act Cost to Date $859 ,569.50
!Amount of Proposed Change Order $212,349.10 -$0.00. $0.00
Revised Contract Amount $1,071 ,918 .60 '
Original Funds Available for Change Orders $25,787 .00
Remaining Funds Available for this CO $25,787.00 .
Additional Fund ing (if necessary) $186 ,562 .10 C
CHANGE ORDERS to DATE (INCLUDING THIS ONE) AS % OF ORIGINAL CONTRACT
MAX ALLOWABLE _CONTRACT AMOUNT (ORIGINAL CONTRACT COST+ 25%)
JUSTIFICATION (REASONS) FOR CHANGE ORDER
See Attached Page for Change Order Justification .
'
Totals Select Day Type
$859 ,569 .50
$859 ,569 .50
$212,349.10
$1 ,071 ,918 .60
$25 ,787 .00
$25,787.00
$186 ,562 .10
24 .70%
$1 ,074 ,461 .88
OFFICIAL RECORD
CITY SECRETARY
FT. WORTH, TX
CD
0
100
100
It is understood and agreed that the ac ceptance of this Change Order by the contractor const itutes an accord and satisfaction and represents payment
in full (both time and money) for all costs arising out of , or incidental to , th e above Change Order .
Contractor's Com an Name Contractor Name Date
Conatser Construction
Date
6:,-/3-ZfJI
Date
M&C Number I c -i. s6'f j
06 -19 -1 2 A11 :05 I N
Justification (Reasons) for Change Order
During construction of the Milam Street Drainage Improvements Project, the existence of unusually high
moisture content was discovered in the soil beneath Mi lam Street and several cross streets. These wet
soil conditions were not anticipated and have led to significant "pumping" of the roadway base material
in areas of trench backfill and in paved portions of the street beyond the limits of the trench cut. It was
also determ ined during construction that the exist ing pavement was th icker than antic ipated and
included a significant amount of concrete .
Temporary trench repair and Pulver ize and Overlay (POL) pavement repair methods were planned for
this project. Due to the subsurface soil moisture problem and pavement/conc rete thickness , it was
determined that the POL pavement repair could not be used and, even if it could, would likely result in
pavement fa ilure and therefore would not be feasible.
This issue was discussed with City of Fort Worth TPW staff and a pavement repair method was
recommended that included remov ing the existing base material to a depth that would allow the
contractor to install Triax TX 140 Geogrid from edge of gutter to edge of gutter, 10-inches of roadway
flex base on top of the Geog rid , and a minimum of 2-inches of HMAC surface course pavement. It was
also recommended that a sub -surface drain be installed on the backside of the west curb line on Mi lam
Street in an attempt to remove excess ground water that appears to be moving from the higher ground
on the we sfside towards the lower g round on the east side of the street.
These changes to th e contract also include deletio ns from the original contract for work not r equi red
due to the revised pavement repair plan as well as for unused Utility Adju stment Repair costs .
Other add it ions to the orig inal contract include the unanticipated replacement of 93 -feet of 8-i nch
sanitary line with related utility adjustments, water li ne service connections related to a water line
adjustment, and items or addit ional quant ities that were not previously accounted for.
FORT WOR T H
Project Name
City of Fort Worth
Change Order Additions
Milam Storm Dra in Imp rov eme nts City Sec # 42509 :=::======:::::::::::==============;::::===============:::::::...-:______:==::::;-C Ii en t Project # 00482
:=::=================================================!
Project Description Dra inage imp ro veme nt s for Mila m and interse cting stre ets fr om Mead owbrook to Van Natta
I CE M
42
53
54
55
56
57
26
58
59
60
61
bL
63
64
65
66
-67
L2
68
o9
70
71
IL
73
Contractor
City Project Mgr .
.__C_o_n_at_se_r _C_on_s_tru_c_tio_n ____________ _.! . Change Order #
Mike Perki ns City Inspector Mark Owen
ADDrllUN~
DESCRIPllO N Utt-'I Qty
6" Valves tort-ire Hydrants 11-'W · 2.00
11 O' Road base TPW 7;-85o1JO
IGeogride ln-axe 140 TPW T,8561)0
Cur b & Gutter TPW L141m
Remove & Replace dnvewys for sub drain TPW 1;TI431JO
6" Sub drain (West side of Milam) TPW 1 ,5201m
18' Sanitary Sewer Pipe TPW 93 .00
Fire Hydrant install TPW ~1)0
Fire Hydrant Exstens1on TPW 15 .UU
Fire Hydrant Remove TPW ~1)0
l 1e sub drain to inlets TPW o1m
I Clean out for sub drain TPW 12 .00
I Lower existing 4' sewer service to cle ar stor m pipe TPW 1.0l
14' laps (Sewer on Robinhood) TPW 4.0C
14' PVC (Sewer on Robinhood) TP W 37 .0C
14" Ult-' TPW 10.0C
!Correcting soft spots TPW 200 .00
!Sanitary Sewer Manhole TPW 1.0C
11-1/2 inch laps to Main TPW 2.0U
n inch l aps to Main TPW ~.00
11-1 /2 inch Copper Service TPW 38 .00
11 inch Copper ::;erv1ce TPW 48.0C
11-1 /2 inch Meter Box TPW 2.0C
1 inch Meter Box TPW ~.00
Chan ge Order Add i tion s Page 1 of 2
Date 4/26 /2012
Unit Un it Cost lotal
EA $~UU.UL $1 ,1:SUU.UL
SY $21 .:iu $168 ,904 .UL
SY $2 .10 $16 ,4~(.bL
[F $20 .0C $4 ,280 .UL
--sF $10 .UL $10 ,430 .UL
[F $26 .UL $J~,520 .UL
LF $40 .UL $3 ,UU .UU
EA. $L ,bUU .UL $5 ,UUU.UL
VF $150 .UU $2 ,L:JU .00
~A $225 .UC $450 .UL
~A $950.UL $5,(UU .UL
EA $350 .0l $4 ,LUU .Ol
EA $2 ,!>0U .OC $L,!>00 .0l
EA $250 .0( $1 ,000 .0L
LF $3!>.0C $1 ,L~o .OL
LF $40 .0( $400 .0L
CY $24 .0( $4 ,800 .0L
~A 13,000 .00 $3 ,UUU .UL
EA $LOU .QC $500 .UL
u 1210.00 $bJU.UL
[F $HOO $1,406.UL
TF $L~.OO $1 ,392.UL
EA 1200.uu $400.UL
EA 1125.0C :fiJ/o .UU
-
i
' ,
.
. • -..
'
TPW $280,449 .60
Water $0.00
Sewer $0 .00
Sub Tota l Add iti ons $280 ,44 9.60
·'
Change Ord e r Additio n s Page 2 of 2 .
FORT WORTH ----.---
Project Name Milam Storm Drain Im provement s
City of Fort Worth ,
Change Order Deletions
City Sec# 42509
Client Project # 00482
::::::=========================================================================~
Project Description
Contractor
City Project Mgr.
Drainage improvements for Mi lam and in tersecting str eets from Meadowbrook to Van Natta
Conatser Cons tru cti on Change Order #
Mike Perkins City Inspector Mark Owen
DELETIONS
irEM ut::,L,;K lr' I IUN Ut:I"' I Qty
27 Utili ty adJustment repair l t-'W 0.50
L9 L" HMAC on 227 concrete base TPW 4,zu;,1.00
JU 7 min HMAC on existing ba se TPW ~.141 .00
JL 18-. Pulvenzat1on TPW 5,o\:JU .OC
I
Change Order Deleti o ns Page 1 of 2
Date 4/26/2012
Unit Unit Cost Total
LS $1 O,uuu .uu $5 ,UUU .UU
SF $7 .50 $31 ,522 .ou
SF $3 .00 $6,423 .UU
SF $4 .5( :j;Zo ,155 .UU
TPW $68 ,100 .50
Wa ter $0.00
Sew er $0.00
Sub To ta Delellon s ~oo ,1UU .bU
;l
'
Change O r d er Deletions Page 2 o f 2
M/WBE Breakdown for this Change Order
MWBE Sub Type of Service Amount for thi s CO
Robert Granados Haul Off $1 7,000 .00
-....
Total $17,000.00
Previous Change Orders
CO# I, ''1("1: DATE AMOUNT ; ',' .., ' -
-· ·-
• $0.00 Total " ·-" , ... ,,
PROJECT SUMMARY SHEET
(Change Order Attachment)
PROJECT NAME : Milam-Robinhood Storm Drain Improvements
BuySpeed No (T/PW):
City Project No :
Contract No :
D.O .E. No :
Attachment to Change Order No :
Today's Date :
Original Contract Amount:
Extras to Date :
Credits to Date :
Contract Amount to Date :
P0-12-00070741
00482
CS42509
5422
1
4/24/12
Amount of Proposed Change Order:
Revised Contract Amount:
Contingency Funds Avail. for Admin. Change Orders :
Remaining Funds Available for Change Orders :
Additional Funding (if necessary):
Original M & C, C-25242, approved 10-20-11
C0#1, pending M & C approval
TOTAL P227
$ 859,569.50 $ 859 ,569 .50
$ $
$ $
$ 859,569.50 $ 859 ,569.50
$ 212,349.10 $ 212,349.10
$ 1,071,918.60 $ 1,071 ,918.60
$
$
$
25,787.00 $
25,787.00 $
(186,562.10) $
25,787.00
25 ,787 .00
(186 ,562 .10)
Prepared By: Christy Ezernack T/PW Construction Services
-; ' .
City of Fort Worth, Texas
Mayor and Council Communication
COUNCIL ACTION: Approved on 6/12/2012
DATE: Tuesday , June 12 , 2012 REFERENCE NO.: **C -25649
LOG NAME: 20MILAM_STORM_DRAINAGE_C01 00482
SUBJECT :
Authorize Execution of Change Order No . 1 with Conatser Construction TX, LP , in the Amount of
$212,349.10 to City Secretary Contract No. 42509 for the Milam Storm Drain Improvements Project for a
Total Contract in the Amount of $1,071,918.60 (COUNCIL DISTRICT 5)
RECOMMENDATION:
It is recommended that the City Council authorize the execution of Change Order No . 1 with Conatser
Construction TX, LP , in the amount of $212,349 .10 to City Secretary Contract No . 42509 for a total
contract in the amount of $1,071 ,918 .60.
DISCUSSION:
On October 25, 2011 , (M&C C-25242) the City Council authorized the award of a contract to Conatser
Construction TX, LP , (Conatser) for this project.
The majority (91 percent) of the cost of the change order recommended by this M&C is associated with an
unexpected groundwater condition encountered at the site that necessitates additional construction
measures to protect the integrity of several sections of reconstructed street. Other items covered in this
change order include: water and sewer line adjustments needed due to unforeseen conditions discovered
during construction and the normal quantity adjustments in unit cost bid items that occur near the end of
construction projects.
The net effect of the proposed Change Order is as follows :
Original Contract Amount
Proposed Change Order No. 1
Revised Contract Amount
AMOUNT
$ 859,569 .50
$ 212,349.10
$1 ,071 ,918 .60
Costs for the implementation of Change Order No. 1 will be funded by the Storm Water Capital Project
Bond Fund.
Conatser Construction TX , LP , is in compliance with the City's M/WBE Ordinance by committing to an
additional 8 percent M/WBE participation on this Change Order. The City's goal on this change order is 8
percent.
This project is located in COUNCIL DISTRICT 5 , Mapsco 80F .
FISCAL INFORMATION/ CERTIFICATION:
The Financial Management Services Director certifies that funds are available in the current capital
L o gna m e : 2 0MILAM _STORM_ DRAINAGE _ C O l _ 00482 P age 1 of 2
budget , as appropriated , of the Storm Water Capital Projects Bond Fund .
FUND CENTERS:
TO Fund/Account/Centers
CERTIFICATIONS:
Submitted for City Manager's Office by:
Originating Department Head:
Additional Information Contact:
ATTACHMENTS
FROM Fund/Account/Centers
P227 541200 205280048283
Fernando Costa (6122)
Douglas W . Wiersig (7801)
Michael Perkins (2748)
1. 00482-Milam-Approved MWBE Compliance.pdf (CFW Internal)
2. FAR-000061.pdf (CFW Internal)
3. M AND C 00482 ,pdf (Public)
4. P227 00482 available funds.pdf (CFW Internal)
5. P227-485249-201289990100 .doc (CFW Internal)
$212,349.10
Logname: 20MILAM _STORM_DRAINAGE _C01 _00482 Page 2 of2