HomeMy WebLinkAbout06 - Sewer & Storm Drain Systems Rehabilitation Project - NOC for Contract No. 7538-1 (18S03 & 19D02)Q �EwPpRT
CITY OF
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z NEWPORT BEACH
<,FORN'P City Council Staff Report
April 13, 2021
Agenda Item No. 6
TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: David A. Webb, Public Works Director - 949-644-3311,
dawebb@newportbeachca.gov
PREPARED BY: Patrick Arciniega, Senior Civil Engineer
parciniega@newportbeachca.gov
PHONE: 949-644-3347
TITLE: Sewer & Storm Drain Systems Rehabilitation Project — Notice of
Completion for Contract No. 7538-1 (18S03 & 19D02)
ABSTRACT:
On July 23, 2019, City Council awarded Contract No. 7538-1 for the Sewer & Storm Drain
Systems Rehabilitation Project to Sancon Technologies, Inc. The project included sewer
and storm drain repairs throughout the City. The 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
for the project;
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 applicable portions of
Civil Code; and
c) Release Faithful Performance Bond one year after acceptance by the City Council.
DISCUSSION:
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
$2,389,589.50
$2,783,669.96
16.7%
16.5%
11.4%
5.1%
Allowed Contract Time +
302
Actual Time
+2
Approved Extensions (days) =
Under (-) or Over (+)
6-1
Sewer & Storm Drain Systems Rehabilitation Project — Notice of Completion for
Contract No. 7538-1 (18503 & 19D02)
April 13, 2021
Page 2
The work necessary for the completion of this contract consisted of distributing
construction notices to affected business and residents; construction surveying;
hydro -cleaning of existing sewer mains and storm drain lines; CCTV recording and
inspecting said sewer mains and storm drain lines; installing structural lining in existing
sewer mains and re -opening existing service laterals; making necessary repairs and
installing structural lining in existing storm drain pipes; removing and replacing existing
corrugated metal storm drain lines on 10th Street and also along the parkway at Cameo
Highlands and E. Coast Hwy; constructing new sewer manholes; reconstructing one (1)
storm drain manhole; installing a drop inlet to replace the missing structure at a desilting
basin; trench excavating; resurfacing affected areas; and all other work as described in
the contract documents. Sancon's bid also included an additive bid item to install a sewer
line and clarifier at the City Yard to assist with fluid and debris disposal collected by the
City of Newport Beach's pipeline -cleaning Vactor trucks.
The contracted work has now been completed to the satisfaction of the Public Works
Department. A summary of the construction cost is as follows:
Original Bid Amount:
Actual Cost of Bid Items Constructed:
Total Change Orders:
Final Contract Cost:
$2,389,589.50
$2,030,469.12
$753,200.84
$2,783,669.96
Several change orders were issued as the result of both directed and unforeseen
conditions in the field discovered during construction. Some of the larger change orders
are listed and described below.
During the replacement of the storm drain in 10th Street, it was determined that the
pavement in that street should also be replaced due to undermining caused by the failed
storm drain line. This additional pavement replacement work cost $49,071. Additional
control valves were needed as part of the City Yard clarifier installation, which cost
$15,365. Upon close up inspection, several sewer lines required additional point repairs
before lining could be completed, which totaled $54,398. Additional storm drain lining
and point repair was required, which cost $49,005. Sectional lining and grouting were
required on the sewer in Jamboree Road before typical lining, and due to the complexity
of the work, those change orders totaled $99,033. Unanticipated repairs required at a
manhole on South Bay Front (to enable lining), cost $12,989. During the lining of the
sewer in the alley east of Diamond Ave., the sewer line collapsed, and extensive
emergency sewer repair work had to be completed. The adjacent water line also had to
be repaired, as well as the pavement due to all of the work. This emergency work totaled
$228,843. This contract was near completion when it was determined that more
contingency was required to allow for needed sewer point repairs in the AD 117 part of
Corona del Mar (CdM). The work was necessary prior to the concrete alley rehabilitation.
In accordance with Council policy, the City Manager authorized an additional $230,000
of contingency funding, which brought the total contingency to 16.7%. Several repairs in
five different areas of CdM were performed, totaling $229,984.
6-2
Sewer & Storm Drain Systems Rehabilitation Project — Notice of Completion for
Contract No. 7538-1 (18503 & 19D02)
April 13, 2021
Page 3
A summary of the project schedule is as follows:
Estimated Start of Construction per Annual Baseline Schedule September 2, 2019
Actual Start of Construction Per Notice to Proceed September 3, 2019
Extended Contract Completion Date Inclusive of Extra Work January 15, 2021
Actual Substantial Construction Completion Date September 25, 2020
The project was substantially complete on September 25, 2020 with all lining and
reconstruction improvements completed to the satisfaction of the Public Works
Department.
FISCAL IMPACT:
Funds for the construction contract were expended from the following Capital
Improvement budget accounts:
Account Description
Wastewater Capital (18503)
Wastewater Enterprise (1 9503)
Wastewater Enterprise (21 S03)
General Fund (19D02)
General Fund (18D02)
Wastewater Operations
ENVIRONMENTAL REVIEW:
Account Number
71201-980000-18503
71101-980000-19503
71101-980000-21 S03
01201926-980000-19D02
01201926-980000-18D02
7119061-851037
Total:
$ 2,783,669.96
On July 23, 2019, City Council found this project exempt from the California
Environmental Quality Act (CEQA) pursuant to Section 15302(c) (replacement of existing
facilities involving no expansion of capacity) of the CEQA Guidelines, because this project
has no potential to have a significant effect on the environment
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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 — Sewer Repair Areas Location Map
Attachment B — Storm Drain Repair Areas Location Map
6-3
Amount
$
1,356,460.56
$
300,000.00
$
232,203.93
$
808,996.00
$
36,009.47
$
50,000.00
$ 2,783,669.96
On July 23, 2019, City Council found this project exempt from the California
Environmental Quality Act (CEQA) pursuant to Section 15302(c) (replacement of existing
facilities involving no expansion of capacity) of the CEQA Guidelines, because this project
has no potential to have a significant effect on the environment
�[0��[�I1rev
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 — Sewer Repair Areas Location Map
Attachment B — Storm Drain Repair Areas Location Map
6-3
Attachment A
A I JOHN WAYNE
AIRPORT
ATTACHMENT A
SEWER REPAIR AREAS
LOCATION MAP
NOT TO SCALE
CITY OF NEWPORT BEACH
PUBLIC WORKS DEPARTMENT
C-7538-1 1 07/23/19
0
Attachment B
JOHN WAYNE
A& I AIRPORT
NOT TO SCALE
ATTACHMENT B
STORM DRAIN REPAIR AREAS
LOCATION MAP
CITY OF NEWPORT BEACH
PUBLIC WORKS DEPARTMENT
C-7538-1 1 07/23/19
6-5