HomeMy WebLinkAbout2007 CON CDC Healey Construction - Change Order #10 Foodland MarketCHANGE ORDER
'ro Healey Construction Co, California
Project: Foodland Market
Project Specification No:06-04
CIO Number 10
C/O Initiation Date: July 31, 2007
A Change Order is hereby recommended for the following work in the amount identified in this
document:
DESCRIPTION OF CHANGE:
This change order provides for a time extension of 59 working days for the time from Juno 29,
2007 to September 14, 2007 for work placed in abeyance on the steel tower and screen structure.
The addition of 59 working days extends the contract completion date to October 31, 2007.
On June 20, while bolting the supports for the steel tower on the existing masonry parapet wall it
was discovered the existing masonry parapet wall is of partially unreinforced masonry
construction and not solid grouted. This created a changed condition that required redesign of
the tower and steel structures hold-down connection to the existing parapet wall. As a result, the
work to the tower has been put on abeyance in order to conduct a rebar survey of the parapet
wall, redesign the connection details, obtain City Building Department approval, and gain City
Council approval. This change provides for a time extension of 59 working days. This change
order in the amount of S 2,527.44 will compensate the contractor for all costs associated with
the time extension. Costs include storage bin, restroom rental, fencing, supervision, labor, and all
field and office overhead costs, A follow up change order will compensate the contractor for
work from June 20, 2007 to June 28, 2007 and new work to accommodate a revised tower and
screen detail connection to the parapet wall.
REASON FOR CHANGE:
On June 20, during preparation of the base supports for the steel tower, details sheet 1 and 5E3 of
the shop drawings, the contractor discovered the wedge bolts were not developing the required
strength. A section of the masonry parapet wall was exposed to determine the cause of the poor
bolt strength. It was discovered that the existing parapet masonry wall is of partially unreinforced
masonry construction and not of solid masonry construction. Subsequently, the City requested
that a ground penetrating radar survey of the parapet wall be conducted and the engineer of
record redesign the connection details to safely transfer the loads and reflect the partially
unreinforced masonry construction. This change order will compensate the contractor for a time
extension for an additional 59 working days. Although minor work was able to continue on the
roofing repair, and slurry seal, the installation of the tower and screen steel structures are the
critical path for project completion.
RECEIVED
i? 13 2007
Deve:• mmissicn
Change Order No. 10
COST RECONCILIATION:
Construction Contract Accounting Summary:
The original Contract Amount (Base Bid)
Net change by previously authorized Change Orders
The Contract Amount prior to this Change Order
With this Change Order request the Contract cost is increased by
New Contract Amount
$ 290,326.00
$ 24,416.86
$ 314,742.86
$ 317,270.30
Change in Contract Time: 59 Working Days
Contract Completion Date: October 31, 2007
Recommended for Approval by:
-g /Z 7
DAT
Approved by:
HEALEY CO ' UCTJON CO. DATE
COMMU,VELOPMENT COMMISSION DATE
.ITY l AT NAL TY DATE
ENG ' EERING DEPARTMENT
CC: Constriction File
Inspector
514tr/07
J
44/0
Construction Estimate Page 1
Qty Craft@Hours Unit Material Labor Equipment Total
City of National City
Owner Addr: Office of City Clerk,
1243 National City Blvd
National City, CA
91950
Changes related to shutdown by City of National City
June 28, 2007
4
July 02, 2007 ( Monday )
Remove Fencing as requested by Javier
David Brothers
1.00 CC@2.260 --
28.25
176.28
0.00 204.53
Equipment.
Boom Lift. (600S/A $325 a day plus insurance 15% tax & 0.775% Total $433.69 a day )
2.50--@.0000 -- 0.00 0.00 525.09
Coronado Mobil Storage.
Storage Container. ($85.00 a month )
2.50--@.0000
Diamond Environmental Services.
Porter Potty. ($91.00 a month )
2.50--@.0000 --
National Construction Rentals.
Fencing.
1.00 CC@2.825
0.00
0.00
0.00 0.00
28.25 220.35
Total Manhours, Material, Labor, and Equipment:
5.1 56.50
525.09
240.12 240.12
257.07 257.07
700.60 949.20
396.63 1,722.89 2,176.02
Subtotal: 2,176.02
1S crD 'jz6.'�'J
5,9g0/5 Overhead: (341(ii 180
: ; _ � - To 5":221502.
1C9'.49Wtlfrafit: 9
1P tNs�Pr+.�
Estimate Total: L,VI r,
VA-tJ
2,y,