HomeMy WebLinkAbout06 - C-3412 - Irvine Avenue & Jamboree Road 24-Inch Water Main ReplacementCITY OF NEWPORT BEACH
CITY COUNCIL STAFF REPORT
Agenda Item No. 6
October 14, 2003
TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: Public Works Department
Michael J. Sinacori, P.E.
949 - 644 -3311
msinacod @city.newport- beach.ca.us
SUBJECT: IRVINE AVENUE FROM SANTIAGO TO UNIVERSITY AND JAMBOREE
ROAD FROM SANTA BARBARA TO EASTBLUFF /FORD ROAD 24 -INCH
WATER MAIN REPLACEMENT — COMPLETION AND ACCEPTANCE
OF CONTRACT NO. 3412
RECOMMENDATIONS:
1. Accept the work.
2. Authorize the City Clerk to file a Notice of Completion.
3. Authorize the City Clerk to release the Labor and Materials bond 35 days after the
Notice of Completion has been recorded in accordance with applicable portions of
the Civil Code.
4. Release the Faithful Performance Bond 1 year after Council acceptance.
DISCUSSION:
On June 25, 2002, the City Council authorized the award of the Irvine Avenue from
Santiago to University and Jamboree Road from Santa Barbara to Eastbluff/Ford Road
24 -Inch Water Main Replacement contract to W.A. Rasic Construction Company. The
project has now been completed to the satisfaction of the Public Works and Utilities
Departments. A summary of the contract cost is as follows:
Original bid amount: $2,159,370.09
Actual amount of bid items constructed: $2,133,061.36
Total amount of change orders: $199,315.21
Final contract cost: $2,332,376.57
SUBJECT: Irvine Avenue 24 -Inch Water Main Replacement — Completion And Acceptance OF Contract No. 3412
October 14, 2003
Page 2
PROJECT DESCRIPTION:
The City's water transmission system was reviewed for supply capacity during the
preparation of the City's Water Master Plan in 1999. Upon review, it was determined
the transmission mains in Irvine Avenue need more capacity to serve the airport area
and provide a secondary connection from the east to the west side of the City. The
hydraulic analysis included in the Water Master Plan indicated the entire reach should
be a 24 -inch diameter transmission main to provide the required additional capacity.
The completed project replaced 1.1 of the 2.5 miles of 12 -inch diameter pipe with the
new 24 -inch water transmission main.
This project also included the replacement of 2,700 linear feet of transmission main
within Jamboree Road between San Joaquin Hills Road and Eastbluff Drive. The
Jamboree Road transmission main serves as the second supply line to the airport area.
It also serves the areas around the Eastbluff community. The replacement pipeline was
the same type of 24 -inch water main that was installed on Irvine Avenue.
PROJECT ACCEPTANCE AND COMPLETION
In an effort to better coordinate with the upcoming restoration project in the Upper Bay
Regional Park and a planned median improvement project on Jamboree Road, a
deletion or reduction in the restoration efforts was done which resulted in the reduction
in actual work completed as compared to the bid amount.
There were five summary change orders executed on this project as listed below.
Change Order
Description
Amount
No. 1
Modifications to 24" Water Main at University
$22,343.22
No. 2
Extra Work to Complete Irvine Avenue
$14,316.33
No. 3
Additional Demolition on Jamboree Road
$59,793.52
No. 4
Additional Pipe Work on Jamboree Road
$94,663.57
No. 5
Miscellaneous Final Change Orders
$8,198.57
TOTAL
$199,315.21
Change Order No. 1 and No. 2 related to work on Irvine Avenue mostly for connection
changes at University Drive. Change Order No. 3 resulted from unexpected extra thick
asphalt removals, some 36- inches thick. Change Order No. 4 included 20 items that
mostly related to required modifications to the pipeline alignments on Jamboree Road,
both vertical and horizontal, because of interfering unknown utility conflicts. Change
Order No. 5 involved modification to vault openings at the request of the Utilities
Department.
The final overall construction cost including change orders was 8.1 percent over the
original bid amount.
SUBJECT: Irvine Avenue 24 -Inch Water Main Replacement — Completion And Acceptance Of Contract No. 3412
October 14, 2003
Page 3
Funds for the project were expended from the following accounts:
Description Account No. Amount
Water Transmission Main Replacement 7501- C5500386 $2,273,006.48
Program Pipeline Replacement 7501- C5100578 59,370.09
All work was completed on September 12, 2003, which was beyond the planned
completion time of mid - August. The completion date was extended due to added work
requested by the City.
Environmental Review: This project was determined to be exempt from the California
Environmental Quality Act (CEQA) pursuant to Section 15302 of the CEQA
Implementing Guidelines at the time the project was authorized by the City Council.
This exemption covers the maintenance and alteration of existing public facilities with
negligible expansion of the facilities in areas that are not environmentally sensitive.
Prepared
Mic ael J. SlnacoYi, P.E.
P ncipal Civil Engineer
Submitted by:
• "Plan t. a