HomeMy WebLinkAbout07 - Back Bay Science CenterCITY OF NEWPORT BEACH
CITY COUNCIL STAFFREPORT
Agenda Item No. 7
September 11, 2007
TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: Public Works Department
Stephen G. Badum
949 - 644 -3311 orsbadum @city.newport - beach.ca.us
SUBJECT: BACK BAY SCIENCE CENTER — COMPLETION AND ACCEPTANCE
OF CONTRACT NO., 3460 WITH J.G. TATE FIRE PROTECTION,
STANDARD DRYWALL, INC., U.P. LANDSCAPING, CONTROL AIR,
AND CONTINENTAL PLUMBING
RECOMMENDATIONS:
1. Accept the work performed and completed by J.G. Tate Fire Protection,
Standard Drywall, U.P. Landscaping, Control Air, and Continental Plumbing.
2. Authorize the City Clerk to file a Notice of Completion for each trade contractor.
3. Authorize the City Clerk to release the Labor and Materials bonds 35 days after
the Notice of Completions have been recorded in accordance with applicable
portions of the Civil Code.
4. Release the Faithful Performance Bonds 1 year after Council acceptance.
DISCUSSION:
On February 28, 2006, the City Council authorized the award of 12 trade contracts for
construction of the Back Bay Science Center. Three more trade contracts were
awarded on August 22, 2006. The total cost of the 15 trade contracts awarded is
$4,735,709.00. The work of four of the trade contractors has been previously accepted
by the City Council (Junior Steel Co. on May 22, 2007, and Kewaunee, Dow Diversified,
and Metropolitan Floor Coverings on June 12, 2007.)
The work of five more trade contractors has been completed to the satisfaction of the
Public Works Department and is recommended for acceptance._ J.G. Tate Fire
Protection (J.G. Tate) furnished and installed the interior fire protection sprinkler
systems. Standard Drywall, Inc. (SDI) furnished and installed interior wall sheeting,
windows, doors, suspended ceilings, and interior painting. U.P. Landscaping furnished
and installed the site irrigation system (plant materials are being handled separately).
Back Bay Science Center - Completion and Acceptance of Contract No. 3460 with
J.G. Tate Fire Protection. Standard Drywall, U.P. Landscaping, Control Air, and Continental Plumbing
September 11, 2007
Page 2
Control Air furnished and installed the heating, ventilation, and air conditioning (HVAC)
systems. Continental Plumbing, Inc. (Continental) furnished and installed all interior
building plumbing as well as site water, sewer, and storm drains.
A summary of the five trade contract costs is as follows:
Contractor
Original Bid
Amount
Bid Items
Constructed
Total
Change
Orders
Final
Contract
Cost
Percentage
Change
J.G. Tate
$78,220
$78,220
$26,175
$104,395
33.5%
SDI
$519,357
$519,357
$70;148
$589,505
1. .%
U.P. Landscape
$65,000
$65,000
<$6,615>
$58,385
-10.2%
Control Air
$175,000
$175,000
$103,386
$278,386
59.1%
Continental
$517,936
$517,936
$43,199
$561,135
8.3%
TOTALS
$1,355,513
$1,355,513
$236,293
$1,591,806
17.4%
The majority of the increases are the result of adding the Construction of the
Administration Building to Complete the third wing of the overall project. Funding for
costs associated with the Administration Building will be provided by The State
Department of Fish and Game. The City Council authorized adding the Administration
Building Construction on January 23, 2007. A tabulation of the contract change orders
for the five trade contractors is included with this report as Exhibit 1. The increased
cost for materials as compared to the earlier initial bids is evident in some of the change
order amounts.
Environmental Review:
A Mitigated Negative Declaration was prepared and processed to assess the
environmental impact associated with constructing the Back Bay Science Center.
Identified mitigation measures have been included in the project design and
construction. The California Department of Fish and Game was the lead agency for the
environmental review and the documentation was completed in September 2003.
Public Notice:
Not Applicable.
Geotechnical /Survey Services:
Compaction testing of trench backfill was provided by Bagahi Engineering, Inc., the
project geotechnical engineering firm. Construction staking and alignment verification
for underground pipelines and structures was provided by Walden & Associates, the
project civil engineering firm.
Back Bay Science Center - Completion and Acceptance of Contract No. 3460 with
J.G. Tate Fire Protection, Standard Drywall, U.P. Landscaping, Control Air, and Continental Plumbing
September 11, 2007
Page 3
Funding Availability:
Funds for the project were expended from the following account:
Account Description
Back Bay Science Center
Account Number
7457- CO310600
Total
Amount
$1,591,806.00
$1,591,806.00
The work of these five trade contractors was completed in a timely manner and
consistent with the overall project construction schedules established by the
Construction Manager, Douglas E. Barnhart, Inc. The completion date for the scope of
work covered by the initial contracts was June 7, 2007. The change order work added
to the contracts for construction of the Administration Building extended the completion
date to September 7, 2007.
The work of the other six trade contractors will be ready for acceptance as soon as
"punch list" items are complete. Staff anticipates recommending acceptance of their
work at the next City Council meeting on September 25, 2007. A small portion of the
site parking and driveway pavement is being deferred until removal of the modular units
currently occupied by the county Water Quality Laboratory. Credits for the
uncompleted work have been negotiated with the three trade contractors affected.
Informal contracts will be administered to complete the site work when the area is
accessible.
Prepared by: Submitted by:
Gail P. Pickart
Consulting Project Manager
Attachment: Exhibit 1
�[A�)
S eph G. Babum
P ' Works Director
Exhibit 1
Back Bay Science Center — Contract No. 3460
Trade Contractors
Change Order Summary
Page 1
Change
Order
No.
Description of Change Order
Amount
33
Administration Building fire sprinkler
$26,175
system
J.G. TATE FIRE TOTAL $26,175
34
Administration Building Shell (windows,
$58,511
doors, and framing for restrooms and
kitchen)
35
Administration Building (insulation,
24,629
m
dDmall, and painting)
47
Administration Building (suspended
10,434
ceiling and acoustical tiles
60
Credit for unused Construction Manager
<25,000>
contingency allowance
U)
73
Administration Building interior doors
1,574
STANDARD DRYWALL, INC. TOTAL $70,148
U) z
44
Changed specification for irrigation
$3,291
z a
controller, control valves, and sprinkler
< v
heads at request of General Services,
Parks Division
50
Cost for drip irrigation system along berm
2,555
at southeasterly edge of parking area
66
Credit for unused Construction Manager
<15,000>
contingency allowance
68
Cost increase to install conventional
4,539
irrigation system rather than drip irrigation
along berm at southeasterly edge of
parking area
78
Credit for irrigation system deferred
<2,000>
because of County Water Quality Lab
modular units
U.P. LANDSCAPING TOTAL
<$6,615>
8
Increased costs due to delay caused by
$4,386
-
nesting osprey
<
31
Administration Building rough HVAC
116,000
49
Administration Building finish HVAC
8,000
0
58
Credit for unused Construction
<25,000>
v
Management contingency allowance
CONTROL AIR TOTAL
$103,386
Page 1
Exhibit 1
Back Bay Science Center — Contract No. 3460
Trade Contractors
Change Order Summary
"Requested and reimbursed by County of Orange Health Care Agency
Page 2
1
Plumbing connections for County
$2,062'
furnished fume hood in Water Quality Lab
2
Credit for changing sewer pipe material
<3,688>
from VCP to PVC
4
Increase size of site water main from 6" to
5,844
8" in diameter
5
Add emergency shower in Teaching Lab
7,596
and extend sewer lines for future lab
tables in half of Teaching Lab
rn
9
Revised layout of site water mains and
18,838
°
Z
services; added fire hydrant; and added
sewer lateral to serve future UCI Crew
FE
Building
10
Extend de- ionized water line for future
2,925'
°
c
dishwasher in Water Quality Lab
15
Furnish and install vacuum line system in
11,195'
°
U
Water Quality Lab
36
Administration Building interior plumbing
19,273
restrooms
37
Extend storm drain lines to collect fire
1,903
sprinkler line. discharges as required by
Fire Department
62
Credit for unused Construction Manager
<25,000>
contingency allowance
75
Administration Building kitchen plumbing
21251
CONTINENTAL PLUMBING TOTAL
$43,199
"Requested and reimbursed by County of Orange Health Care Agency
Page 2
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