HomeMy WebLinkAbout06 - St. James Road Sewer Relocation and CDS Unit Installation - NOC and Acceptance of Contract No. 4910 (CAP12-0027)CITY OF
NEWPORT BEACH
City Council Staff Report
January 27, 2015
Agenda Item No. 6
TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: David A. Webb, Public Works Director- (949) 644 -3330,
dawebb@newportbeachca.gov
PREPARED BY: Frank Tran, Civil Engineer
PHONE: (949)644 -3340
TITLE: St. James Road Sewer Relocation and CDS Unit Installation - Notice of Completion
and Acceptance of Contract No. 4910 (CAP 12-0027)
ABSTRACT:
On August 12, 2014, City Council awarded Contract No. 4910 for the St. James Road Sewer Relocation
and CDS Unit Installation project to Paulus Engineering, Inc. for a total contract cost of $539,645.00 plus a
10% allowance for contingencies. The required work is now complete and staff requests City Council
acceptance and close out of the contract.
RECOMMENDATION:
a) Accept the completed work and authorize the City Clerk to file a Notice of Completion;
b) Authorize the City Clerk to release the Labor and Materials Bond 65 days after the Notice of
Completion has been recorded in accordance with the applicable portions of the Civil Code; and
c) Release the Faithful Performance Bond one year after Council acceptance.
FUNDING REQUIREMENTS:
Funds for the construction contract were expended from the following accounts:
Account Description Account Number Amount
General Fund 7012- C7002005 $191,337.00
Wastewater Enterprise 7541- C7002005 $ 324,921.96
Total Construction Cost: $ 516,258.96
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DISCUSSION:
Overall Contract Cost/Time Summary
The work necessary to complete this contract included constructing sewer improvements such as sewer
mains, manholes, laterals, and cleanouts within the 21 -ft public sewer easement on the property at 745
Dover Drive obtained last year. The goal of the project was to relocate and replace a deteriorated steel
sewer main on the hillside behind homes on St. James Place and St. James Road.
As part of this sewer project, construction of a planned hydrodynamic separation storm drain treatment
unit on Dover Drive was included in the bid as the construction effort was of similar nature so as to provide
for overall cost efficiencies and minimize public inconvenience.
The contract also included replacing an 8 -in sewer line between the properties at 724 and 730 Saint
James Place by pipe bursting method. However, due to the unforeseen conditions of the hillside not
readily apparent at the time of bid (including substandard and questionable footings of the existing private
retaining wall at this location), excessive change orders would have resulted should the work be
undertaken as planned. As a result this item of work has been deleted and the 8 -in sewer line replacement
method will be reassessed, redesigned and constructed in a future project.
Three change orders in the amount of $89,525.96 were approved for the extra work for controlling
groundwater encountered at the CDS unit and two manholes, exporting unsuitable soil, importing gravel
for bedding and suitable soil back fill for the 8 -in sewer main construction.
The contract has now been completed to the satisfaction of the Public Works Department.
A summary of the contract cost is as follows:
Original bid amount:
$539,645.00
Items of work deleted from Original Contract:
Actual
Actual cost of bid items constructed:
$426,733.00
Awarded Contract
Awarded
Minus
Final Cost at
$516,258.96
% Due to
Directed
% Due to
Amount
Contract
Completion
Contract
Unforeseen
Deleted Work
Change
Change
Change
$539,645.00
$426,733.00
$516,258.96
-4.33%
- 20.92%
16.59%
Actual Time
Allowed Contract Time (days)
110
-46
Under - or Over +
The work necessary to complete this contract included constructing sewer improvements such as sewer
mains, manholes, laterals, and cleanouts within the 21 -ft public sewer easement on the property at 745
Dover Drive obtained last year. The goal of the project was to relocate and replace a deteriorated steel
sewer main on the hillside behind homes on St. James Place and St. James Road.
As part of this sewer project, construction of a planned hydrodynamic separation storm drain treatment
unit on Dover Drive was included in the bid as the construction effort was of similar nature so as to provide
for overall cost efficiencies and minimize public inconvenience.
The contract also included replacing an 8 -in sewer line between the properties at 724 and 730 Saint
James Place by pipe bursting method. However, due to the unforeseen conditions of the hillside not
readily apparent at the time of bid (including substandard and questionable footings of the existing private
retaining wall at this location), excessive change orders would have resulted should the work be
undertaken as planned. As a result this item of work has been deleted and the 8 -in sewer line replacement
method will be reassessed, redesigned and constructed in a future project.
Three change orders in the amount of $89,525.96 were approved for the extra work for controlling
groundwater encountered at the CDS unit and two manholes, exporting unsuitable soil, importing gravel
for bedding and suitable soil back fill for the 8 -in sewer main construction.
The contract has now been completed to the satisfaction of the Public Works Department.
A summary of the contract cost is as follows:
Original bid amount:
$539,645.00
Items of work deleted from Original Contract:
($112,912.00)
Actual cost of bid items constructed:
$426,733.00
Contract change order:
$ 89.525.96
Final contract cost:
$516,258.96
The final overall construction cost was approximately 4.33% below the original bid amount which is
attributed to actual bid items constructed and change orders.
The contract allowed for 110 consecutive working days to complete the scope of the work. However, due
to the deletion of a portion of the work that called for the replacement of a portion of 8 -in sewer line as a
result of conditions not readily apparent at the time of bid, the project was substantially completed on
December 17, 2014, which was 46 working days ahead of the allotted contract time. 6-2
A summary of the project schedule is as follows:
Estimated Completion Date per 2014 Baseline Schedule:
Project Awarded for Construction:
Completion Date per Contract and Approved Extensions
Actual Substantial Construction Completion Date:
ENVIRONMENTAL REVIEW:
November 28, 2014
August 12, 2014
March 4, 2015
December 17, 2014
Staff recommends the City Council find this project exempt from the California Environmental Quality Act
( "CEQA ") pursuant to Section 15302 (replacement of existing facilities involving negligible expansion of
capacity) of the CEQA Guidelines, California Code of Regulations, Title 14, Chapter 3, because it has no
potential to have a significant effect on the environment.
NOTICING:
The agenda item has been noticed according to the Brown Act (72 hours in advance of the meeting at
which the City Council considers the item).
ATTACHMENTS:
Description
Attachment A - Location Mao
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NEW SEWER
LATERAL
tEXIST. SEWER\ ABANDONED
V
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8" SEWER
REPLACEMENT
745 DOVER
p
NEW 8" SEWER
21' EASEMENT
ATTACHMENT A
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NEW SEWER
LATERAL
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DELETED WORK
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