HomeMy WebLinkAbout12 - Balboa Island Water Main Replacement — Phase 3 & Shorecliff Community Water System Improvements - NOC for Contract No. 7173-3Q �EwPpRT
CITY OF
s NEWPORT BEACH
`q44:09 City Council Staff Report
September 9, 2025
Agenda Item No. 12
TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: David A. Webb, Public Works Director - 949-644-3311,
dawebb@newportbeachca.gov
PREPARED BY: Michael J. Sinacori, Assistant City Engineer - 949-644-3342,
msinacori@newportbeachca.gov
TITLE: Balboa Island Water Main Replacement — Phase 3 & Shorecliff
Community Water System Improvements - Notice of Completion for
Contract No. 7173-3
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On October 24, 2023, the City Council awarded Contract No. 7173-3 for the Balboa Island
Water Main Replacement — Phase 3 & Shorecliff Community Water System
Improvements project to T.E. Roberts. The project replaced older, deteriorated water
mains located on Balboa Island, on Little Balboa Island and in the Shorecliff community
including building two new water pressure regulating stations. On May 14, 2024,
City Council approved a budget amendment to increase the contract contingency to 65%
of the contract award amount to include additional Shorecliff community improvements.
The base contract and additional work are 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
for the project.
DISCUSSION:
Overall Contract Cost/Time Summary
Awarded Contract
Final Total Contract
Total Contract
Percent Contract
Amount
Amount
Change Amount
Cost Change
$3,470,899
$5,676,518.65
$2,205,619.65
+63.5%
Allowed Contract Time + Approved
593
Actual Time Used (Days)
593
Extensions (Days) =
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Balboa Island Water Main Replacement — Phase 3 & Shorecliff Community
Water System Improvements - Notice of Completion for Contract No. 7173-
3September 9, 2025
Page 2
This project included the replacement of existing cast-iron water mains, the construction
of new 6-inch and 8-inch PVC distribution mains, new water valves, fire hydrants and
water services on Balboa Island and Little Balboa Island. For the Shorecliff community,
the project consisted of the replacement of a short section of existing water main on
Evening Canyon Road and Shorecliff Road, including the construction of new pressure
regulating stations in the Shorecliff and Cameo Shores communities.
During construction, a request was made by the Shorecliff community to expand the
scope of work due to several recent water main breaks. Staff agreed and additional water
main replacement for all of Shorecliff Road and the remaining sections of pipe along
Evening Canyon Road between Shorecliff Road and Seaward Road were added to the
project after City Council provided the additional funding on May 14, 2024. The segment
of pipe on Seaward Road between the new water pressure regulating station and
Evening Canyon Road was also added. Additionally, more water main replacement work
on Balboa Island was added to include replacement of undersized and deteriorated piping
found in four alleyways that was interfering with planned utility underground construction
for Assessment District No. 124.
The contracted work has been completed to the satisfaction of the Public Works
Department. A summary of the construction cost is as follows:
Original Bid Amount: $ 3,470,899.00
Actual Cost of Bid Items Constructed: $ 3,400,771.49
Total Change Orders: $ 2,275,747.16
Final Contract Cost: $5,676,518.65
The final total contract amount was $5,676,518.65, which was approximately 63.5%
higher than the original bid amount. This cost increase was primarily due to the above -
mentioned additional work in the Shorecliff community. Other additional work included
water valve replacement on Little Balboa Island for deteriorated valves and lining of the
existing 12-inch transmission main in the harbor between the Fun Zone on the
Balboa Peninsula and Balboa Island.
A summary of the project schedule milestones is as follows:
Estimated Start of Construction per Annual Baseline Schedule
December 4, 2023
Actual Start of Construction Per Notice to Proceed
November 14, 2023
Estimated Completion per Annual Baseline Schedule
August 7, 2024
Substantial Completion Date Inclusive of Extra Work
June 19, 2025
During construction of the planned water main replacements for the project, it was
necessary to alter and revise the schedule to accommodate the added water main
improvements for the Shorecliff community, Balboa Island and Balboa Peninsula.
Consequently, 418 additional working days were granted to complete the work which was
substantially completed to the satisfaction of the Public Works Department by
June 19, 2025.
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Balboa Island Water Main Replacement — Phase 3 & Shorecliff Community
Water System Improvements - Notice of Completion for Contract No. 7173-
3September 9, 2025
Page 3
FISCAL IMPACT:
The Balboa Island Water Main Replacement — Phase 3 & Shorecliff Community Water
System Improvements was included within the FY 2023-24 Capital Improvement Program
Budget. Funds for the construction contract were expended from the following account(s):
Account Description
Water Capital Distribution & Piping
Water Capital Non -Master Plan
ENVIRONMENTAL REVIEW:
Account Number
70201931-980000-23W 11
70201932-980000-24W 14
Total:
Amount
$ 3,074,155.98
$ 2,602,362.67
$ 5,676,518.65
On October 24, 2023, the City Council found this project exempt from the California
Environmental Quality Act (CEQA) pursuant to Class 2 Section 15302(c) (replacement of
existing public facilitates involving negligible or no expansion of capacity) of the CEQA
Guidelines, California Code of Regulations, Title 14, Chapter 3, because this project 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).
ATTACHMENT:
Attachment A — Location Maps
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BALBOA ISLAND WATER MAIN REPLACEMENT - PHASE 3 &
SHORECLIFF COMMUNITY WATER SYSTEM IMPROVEMENTS
LOCATION MAP
CITY OF NEWPORT BEACH
PUBLIC WORKS DEPARTMENT
C-7173-3 I 23W11 & 24W14 09/09/25
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