HomeMy WebLinkAbout14 - Balboa Island Seawall CapQ SEW PORT
CITY OF
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NEWPORT BEACH
c�<,FORN'P City Council Staff Report
October 10, 2017
Agenda Item No. 14
TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: David A. Webb, Public Works Director - 949-644-3311,
dawebb@newportbeachca.gov
PREPARED BY: Bob Stein, Assistant City Engineer, rstein(c�newportbeachca.gov
PHONE: 949-644-3322
TITLE: Balboa Island Seawall Cap — Award of Contract No. 7066-1 (15H11)
ABSTRACT:
Staff has received construction bids for the Balboa Island Seawall Coping Extension project
and is requesting City Council's approval to award the construction contract to Bosco
Constructors, Inc. of Chatsworth, California and authorize the City Manager to approve
Amendment No. 4 with COWI Marine of North America for project support services.
RECOMMENDATION:
a) Find this project exempt from the California Environmental Quality Act (CEQA) pursuant to
Section 15301 under Class 1 (Existing Facilities) of the CEQA Guidelines, because it has
no potential to have a significant effect on the environment;
b) Approve the project drawings and specifications;
c) Award Contract No. 7066-1 to Bosco Constructors, Inc. for the total bid amount of
$1,444,444.00, and authorize the Mayor and City Clerk to execute the contract;
d) Establish a contingency of $ 216,000 (approximately 15% of Total Bid) to cover the cost of
unforeseen work not included in the original contract; and
e) Authorize the City Manager to execute Amendment No. 4 to the current Professional
Services Agreement with COWI Marine North America Inc. for a not to exceed fee of
$93,360 for additional design, and bidding and construction support services.
FUNDING REQUIREMENTS:
The adopted budget includes sufficient funding for this task. It will be expensed to the Capital
Improvement Program budget.
Account Description Account Number Amount
Balboa Island Seawall Cap 10101-980000-15H11 $ 1,796,804.00
Total: $ 1,796,804.00
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Balboa Island Seawall Cap — Award of Contract No
7066-1 (151-111)
October 10, 2017
Page 2
As the projects involves construction and repair on a seawall that is nearly 90 years old, staff
recommends establishing fifteen percent for contingency purposes for unforeseen conditions
associated with the construction and potential additional repairs on the seawalls and walkways
as construction progresses.
Proposed fund uses are:
Vendor
Bosco Constructors, Inc.
Bosco Constructors, Inc.
COWI Marine North America Inc
On-call vendors
Various
DISCUSSION:
Purpose
Amount
Construction Contract
$
1,444,444.00
Construction Contingency
$
216,000.00
Consultant Services
$
93,360.00
Material & Geotechnical testing
$
40,000.00
Printing and Incidentals
$
3,000.00
Total: 1,796,804.00
This project will construct an approximate 9 -inch high cap on the north, south and west sides
of Balboa Island. With the cap, the top elevation of the south side seawall (up to the Collins
Avenue Bridge) will be 9.0 feet NAVD88 (which is equal to 9.2 feet Mean Lower Low Water)
and 8.5 feet NAVD88 on the south side. With careful monitoring and continuing routine
maintenance of the seawalls and new cap, it is expected that the cap should provide ten or
more years of overtopping protection for the island. A full seawall project update was presented
to City Council on August 8, 2017.
To maintain the existing access to the public beaches, the project will leave twenty-nine gaps
in the new seawall cap, with one gap located at every street end. There would also be gaps in
the new seawall cap at the four public docks. During high tide and storm surge events,
temporary barriers will be installed across the gaps. The barriers would be installed
approximately 48 hours in advance of a potential flood event and removed within 48 hours after
the event. Tide and storm events would be monitored by the Municipal Operations Department
and Public Works. The installation and removal of the temporary barriers, as well as the
maintenance of the gap openings, will require additional annual funding for staffing, equipment,
materials, labor, storage, repairs and evaluations, which is currently estimated annually at
$50,000.
There are 79 private docks, four with gangways, within the project area. The approximate
9 -inch high cap extension will be constructed across the entrances to these docks and
gangways. To facilitate entry onto these private facilities, a short concrete step will be
constructed on the lower portion of the existing seawall cap, similar to what was done on Little
Balboa Island when that seawall cap was installed.
In addition to the seawall cap extension, cracked portions of the existing seawall will be
repaired, patched and sealed using specialty methods as specified in the contract documents.
Also, several cracked/deteriorated segments of the concrete boardwalk on the west end of the
island will also be removed and replaced.
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Balboa Island Seawall Cap — Award of Contract No. 7066-1 (15H11)
October 10, 2017
Page 3
To keep the majority of the boardwalk open during construction, the cap will be constructed in
phases within seventeen work areas. Each work area will be approximately 450 feet in length.
Construction will occur at no more than three non-consecutive work areas at any given time.
Construction in each work area is expected to take between 10 to 15 working days. Each work
area will occupy half of the boardwalk adjacent to the seawall (5 feet) while the other half will
be available for public access and use. Closure of the entire width of the boardwalk may occur
for short periods in order to move equipment and material across the boardwalk or complete
specific tasks. Detour signage would indicate pedestrian routes around boardwalk closures
during those periods.
In addition to approving the construction contract with Bosco Constructors Inc., a contract
amendment with the project's design consultant, COWI Marine North America Inc. is also
necessary. The additional scope and cost of services, many of which are on a time and material
basis, have not been finalized at the time of the staff report preparation. Since time is of the
essence to begin construction, staff is requesting authorization for the City Manager to sign the
upcoming amendment on a form approved by the City Attorney. The scope and costs are
currently estimated at $93,360 and include the cost for many City and community requested
additional revisions, studies, mockups and investigations during the design and bidding,
construction management and inspection assistance and engineering evaluation of unforeseen
conditions/modifications which are expected during construction.
On July 27, 2017, the City's Zoning Administrator considered and approved Coastal
Development Permit for this project. On August 8, 2017, City Council directed staff to advertise
and publicly bid the project for construction to add an approximate 9 -inch high concrete cap to
the existing seawall on the north and south sides of Balboa Island.
At 10 a.m. on September 20, 2017, the City Clerk opened and read the following bids for this
project:
The City received multiple bids for this project and the low bid amount is 3.7 percent below the
engineer's estimate of $1,500,000.00.
The low bidder, Bosco Constructors Inc., possesses a California State Contractors License
Classification "A" as required by the project specifications. A check of the contractor's
references indicates satisfactory completion of similar projects for other public agencies.
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BIDDER
TOTAL BID AMOUNT
Low
Bosco Constructors Inc.
$1,444,444.00
2nd
S&H Civilworks
1,543,500.00
3rd
Future DB International, Inc.
1,820,817.50
4th
Los Angeles Engineering, Inc.
1,850,115.00
5th
Bellingham Marine Industries, Inc.
2,259,366.00
6th
Access Pacific Inc.
2,278,350.43
7th
Environmental Construction, Inc.
2,496,620.00
8th
Metro Builders & Engineers Group, Ltd.
2,837,057.00
9th
John S. Meek Company Inc.
2,947,292.00
The City received multiple bids for this project and the low bid amount is 3.7 percent below the
engineer's estimate of $1,500,000.00.
The low bidder, Bosco Constructors Inc., possesses a California State Contractors License
Classification "A" as required by the project specifications. A check of the contractor's
references indicates satisfactory completion of similar projects for other public agencies.
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Balboa Island Seawall Cap — Award of Contract No
7066-1 (151-111)
October 10, 2017
Page 4
Construction is expected to begin in November and be completed by the spring of 2018. Work
during the boat parade and holiday season will be put on hold to minimize community impacts.
ENVIRONMENTAL REVIEW:
Staff recommends the City Council find this project exempt from the California Environmental
Quality Act (CEQA) pursuant to Section 15301 under Class 1 (Existing Facilities) of the CEQA
Guidelines, 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:
Attachment A — Location Map
Attachment B — Amendment No. 4 to COWI Marine North America Inc. Professional Services
Agreement
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Attachment A
Balboa Island Seawall Coping
Location Map
CITY OF NEWPORT BEACH
PUBLIC WORKS DEPARTMENT
15H11
8/8/17
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ATTACHMENT B
Dr Robert Stein
Assistant City Engineer
City of Newport Beach
100 Civic Center Drive
Newport Beach, CA 92660
RE: Additional Services for Balboa Island; Change Order Request No. 4 to
Contract No. 6419 Professional Services Agreement for Balboa Island
Seawall Coping Repair.
Dear Bob
ADDRESS Cowl Marine North America
3780 Kilroy Airport Way
Suite 200
Long Beach, CA 90806
TEL 562-598-9888
FAx 562-256-7001
www cowi-na.com
DATE 10/01/17
PAGE 1/3
REF A074385.000
COWI North America, Inc. (COWI) is pleased to present this proposal for the subject services. Per our
discussions over the past few weeks, we agreed to provide additional services as detailed in the scope
below.
SCOPE OF SERVICES
The following scope of services is proposed under this Amendment #4.
TASK 6 — Revise Barrier for Light Pole Bases
Current drawings shows the removing the light poles, continuing the new cap raise underneath with
embedded conduits and bolts, replacing the poles ,and reconnecting. Our original proposal was for a
steel -plate barrier at the base of the pole that would go around the seaward side of the base and connect
back into the concrete cap each side. This concept was revised early on in the project to raising the base,
and details for the plate were never developed.
Recently the City decided to keep the light poles at the current elevation and go back to the barrier at the
base concept. This task will develop the details needed for both a steel plate barrier (which will be needed
at the Type A coping detail along North Bayfront) and a concrete "pour -around" concept for all other
bases where there is sufficient room to do so.
TASK 7 — Revise Public Access Openings
Current drawings show a 3 -ft gap and 8 -ft gap for the public beach access and the public dock openings,
respectively. When needed during high tide events, stop boards are placed in slots in the stainless steel
end plates each side of the opening to close the gap. Because the boards could float out, sandbags
would be placed on top to keep in place.
During a meeting on July 27, City operations personnel objected to the use of the sandbags as the means
for holding down the boards and requested a more positive means. They also were concerned that the
current "no -seal" design would leak too much. Various issues regarding a better system were discussed.
This task will develop three different concepts for positive connections of the stop boards and provide
rubber seals around the joints. Concepts sketches and 3-D CAD models will be developed to illustrate the
designs. Once the City has selected the preferred design, the drawings will be revised accordingly. Other
revisions to the drawings as requested by the City are also included in this task. This task does not
include the development and/or construction of physical mock-ups, as previously discussed.
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PAGE 2/3
TASK 8 — Prepare Fundina NOI
Per City's request, a funding application was prepared seeking funds from state and federal grants for
future project(s). The process has two steps: (1) filing a Notice of Intent; and (2) if invited, submitting a
complete proposal. The first action, which required the collecting and organizing data and completing an
on-line form, was completed Aug 4th. Other authorized but unused funds were diverted for this use. This
Task will restore the funds thus diverted. The City has since elected not to submit the proposal.
TASK 9 - Paving and Drainage, Survey, Misc. Changes
Per City's request, we included paving and drainage repairs to the project. These occur at the west end,
where the paving and drainage was reconstructed as part of the bulkhead revetment placement in the
project C2525 — Balboa Island Bulkhead Repair Near Waters Way, dated 6/30/1988. Significant cracking
has occurred. A structural paving slab was recommended to replace the failed standard sidewalk.
Provisions for demolishing the existing paving and base, recompacting subgrade, placing new base,
mudsill, and structural slab were included.
Also included is time for reviewing City provided survey information and including spot elevations on the
drawings; and miscellaneous changes to the drawings not covered above.
TASK 10 — Bid and Construction Phase Services
The current contract does not provide for bid and construction phase services. This task will add those
service to the contract. All work will be as authorized by the City, and the list of items below may vary, as
requested.
Bid phase services typically includes: attending pre-bid meeting; responding in writing to potential bidder's
questions; prepare addenda, if needed; and review bids.
Construction phase services typically includes: attending a pre -construction meeting; reviewing
submittals; responding in writing to RFI's; making site visits and observations; preparing change orders, if
needed; attending meetings; preparing as -built drawings from contractor's notes; and other activities as
requested by City.
It is difficult to estimate the required services in advance, since the need is unknown and somewhat
based upon the sufficiency of the contractor selected. For purposes of this proposal, the following hours
are assumed:
Bid Phase Services: 40 hours
Construction Phase Services (assuming 100 working days = 20 weeks): 218 hours
1s' 2 weeks: full time = 2 weeks x 40 hrs. / week = 80 hrs.
Next 2 weeks: '/2 time = 2 weeks x 20 hrs. / week = 40 hrs.
Next 8 weeks: 1 day / week = 8 weeks x 8 hrs. / week = 64 hrs.
Remaining: '/2 day / week = 8 weeks x 4 hrs. / week = 32 hrs.
Additional hours: 2 hrs.
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PAGE 3/3
FEE PROPOSAL
Fees for the above services will be billed in accordance with rates provided in the contract and the
following schedule:
Task # Task Title Hours CDC Costs
6 Revise Barrier for Light Pole Bases 76 $
500 $ 14,300
7 Revise Public Access Openings 100
500 17,220
8 Prepare Funding NOI 12
1,500 3,770
9 Paving and Drainage, Survey, Misc Changes 42
8,340
10 Bid and Construction Phase Services 258
170 50,000
Total, this amendment
$ 93,630
Thus, our current authorization of $145,187 will increase to $238,817.
If this proposal for additional engineering services meets with your approval, we look forward to receiving
an executed change order. Thank you.
Sincerely,
COWI NORTH AMERICA, INC.
4 - gvwolvl�
Warren A. Stewart, PE, SE, D.PE
Project Manager
Cc: J. Gerwick
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