HomeMy WebLinkAbout07 - 19th Street Tide Gate NOC�*4'Po" = CITY OF
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°,�oa�'' City Council Staff Report
Agenda Item No. 7
May 28, 2013
TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: Public Works Department
David A. Webb, Public Works Director
949 -644 -3311, dawebb(o)newportbeachca.gov
PREPARED BY: Fong Tse, Principal Civil Engineer
949 - 644 -3321, ftse(a)newportbeachca.gov
APPROVED:
TITLE: 19th Street Tide Gate Retrofit — Notice of Completion and
Acceptance of Contract No.4773
ABSTRACT:
On May 22, 2012, the City Council awarded Contract No. 4773, 19th Street Tide Gate
Retrofit, to Palp Inc. (dba Excel Paving Company), for the total bid price of $182,501.00,
plus approximately 15 percent for construction contingency allowance. The required
work is now complete and staff requests City Council acceptance and close out of the
contract.
RECOMMENDATIONS:
1. Accept the completed work and authorize the City Clerk to file a Notice of
Completion.
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.
3. Release the Faithful Performance Bond one year after Council acceptance.
FUNDING REQUIREMENTS:
Funds for the construction contract were expended from the following accounts:
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19th Street Tide Gate Retrofit -- Notice of Completion and Acceptance
of Contract No.4773
May 28, 2013
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Account Description
General Fund
Tide and Submerged Lands
Total Construction Cost:
DISCUSSION:
Account Number
7012- C2502006
7284- C2502010
Amount
$ 95,089.60
$ 93,185.44
$ 188,275.04
There is currently a Tidal Gate value on the City Storm Drain at the end of 19th Street
(on the Bay side). This manually operated metal tide gate value is consistently
submerged in seawater and due to that fact, it requires a higher level of maintenance
and repair. Due to the significant depth of this gate value, large drainage area, as well
as very low surface elevation, Municipal Operations field crews were required to often
stage portable pumps at this street -end during high tides and heavy rain events to pump
out the runoffs to prevent the adjacent low lying areas within 190' Street, Bay Avenue,
and Balboa Avenue from flooding.
This project replaced the high maintenance traditional metal tide gate with a passive
rubber tide valve, similar to the unit that has been operating successfully at Pearl
Ave /South Bay Front and at Seashore Drive /Santa Ana River. The new rubber valve
with the automated remote - controlled submersible runoff water pump installed in the
tide vault eliminates the need for City crews to manually operate the valve and also
position and operate portable pumps to clear standing water that accumulates during
rain and high tide events.
Other improvements completed under this Contract included street -end landscape and
planter renovations, below grade electrical system upgrades and connections for the
new runoff water pump, relocation of existing streetlights, and new concrete sidewalks
and ramps for improved pedestrian access to the 19th Street street -end public dock.
The contract has now been completed to the satisfaction of the Public Works
Department.
Overall Contract Cost/Time Summary
Awarded
Final Cost at
Contingency
Actual
% Due to
% Due to
Contract Amount
Completion
Allowance
Contract
Directed
Unforeseen
Change
Change
Change
$182,501.00
$188,275.04
15% or less
+3.16%
1.07%
2.09%
Allowed Contract Time (days)
135
Actual Time
+36
Under ( -) or Over ( +)
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19th Street 'ride Gate Retrofit — Notice of Completion and Acceptance
of Contract No.4773
May 28, 2013
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A summary of the contract cost is as follows:
Original bid amount:
Actual cost of bid items constructed:
Contract change orders:
Final contract cost:
$182,501.00
$181,633.00
$ 6,642.04
$188,275.04
The final contract cost was 3.16 percent above the original contract amount.
Approximately two- thirds of the extra cost was due to the relocation of a trash enclosure
and railing requested by the nearby homeowners. The remaining extra cost was the
result of additional planter wall waterproofing and conduits determined necessary by
staff to reduce future maintenance costs.
A summary of the project schedule is as follows:
Estimated Completion Date per July 2012 Baseline Schedule: December 24, 2012
Project Awarded for Construction: May 8, 2012
Completion Date from Award with Approved Extensions: March 6, 2013
Actual Substantial Construction Completion Date: April 11, 2013
"It should be noted that the extra work days required to complete this project as
tabulated above was solely the result of the unresponsiveness of the submersible pump
manufacturer in delivering the pump to Excel Paving Company to field install.
ENVIRONMENTAL REVIEW:
At Contract Award, the City Council found this project exempt from the California
Environmental Quality Act ( "CEQK) pursuant to Section 15301(d) (Restoration of
deteriorated facilities to meet current safety standards) 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:
This agenda item has been noticed according to the Brown Act. In addition, the City Clerk
will be filing a Notice of Completion for the project as a result of this action.
Submitted
David A. Webb
Public Works Director
Attachment: A. Location Map
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I
I
LOCATION MAP
191-1-1 STREET TIDEGATE RETROFIT
CONTRACT NO. 4773
PRO.IECT LOCATION
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