HomeMy WebLinkAbout08 - Irvine Avenue 12-inch Water Main ReplacementCITY OF NEWPORT BEACH
CITY COUNCIL STAFF REPORT
Agenda Item No. 8
March 23, 2004
TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: Public Works Department
R.Gunther, P.E.
949 - 644 -3311
rgunther @city.newport- beach.ca.us
SUBJECT: IRVINE AVENUE 12 -INCH WATER MAIN REPLACEMENT,
SHERINGTON PLACE TO DOVER DRIVE — COMPLETION AND
ACCEPTANCE OF CONTRACT NO. 3450
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 10, 2003, the City Council authorized the award of the Irvine Avenue 12 -inch
Water Main Replacement contract to Cody Engineering. The contract provided the
replacement of an 8 -inch asbestos cement water main with a 12 -inch PVC water main
in Irvine Avenue from Dover Drive to Sherington Place. A waterline connection was
added at Irvine Avenue and Westcliff Drive, and 350 feet of sewer line were installed at
the corner of Irvine Avenue and Dover Drive. Fire hydrants were added in this area and
services were set up for future use by the Mariners Elementary School.
The contract has now been completed. However, the following issues were of concern
during the project:
• The contractor required substantial inspection supervision from both the Public
Works Department and Utilities Department in order to assure proper installation
of the water main.
SUBJECT: Irvine Avenue 12" Water Main Replacement - Completion And Acceptance of Contract No. 3450
March 23, 2004
Page 2
• Examples of improper water main installation by the contractor included installing
rubber gaskets backwards at joints and wiring valve risers incorrectly. The
contractor also caused a number of watermain blow -offs and leaks by cutting
and plugging pipes improperly and by failing to adequately install thrust -block
restraints on the watermain.
• The contractor's workforces were often understaffed and left without proper
contractor supervision.
• The contractor's workforces, particularly the superintendent, were excessively
rude and belligerent to residents and City staff.
• The traffic control was also sub - standard on a number of occasions presenting
safety hazards to workers and the public. Proper lane closure delineation was
not maintained and, on at least one occasion, no arrow board was in place to
direct the flow of traffic.
• An unsafe and improper dual left -turn lane closure was made at 17th Street and
Westcliff Drive merging two lanes of traffic into a single lane. This unsafe
condition resulted in a minor traffic accident at the site.
• The asphalt pavement installation required numerous repairs. Even with the
repairs completed, $5,000.00 has been deducted from the contract for future
maintenance of the asphalt. City staff will continue to monitor the condition of
the asphalt during the 1 year warranty period to make sure that the contractor
makes any necessary repairs during that time.
A summary of the contract cost is as follows: Is
Original bid amount: $438,562.00
Actual amount of bid items constructed: 412,932.00
Total amount of Change Orders: 22,451.74
Deduction for asphalt pavement maintenance (- $5000) - 5,000.00
Final contract cost: $430,383.74
The decrease in the amount of actual bid items constructed under the original bid
amount resulted from the decreased amount of asphalt. The final overall construction
cost including Change Orders was 1.86 percent under the original bid amount.
Two Change Orders in the amount of $22,451.00 provided for the additional depth of
existing asphalt, which required saw -cuts up to 22 inches in depth, additional slurry
backfill, and other miscellaneous items.
Environmental Review:
The 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. 0
0
10
SUBJECT: Irvine Avenue 12" Water Main Replacement - Completion And Acceptance of Contract No. 3450
March 23. 2004
Page 3
Funding Availability:
Funds for the project were expended from the following account:
Account Description
Water Enterprise Fund
Account Number
7501- C5500386
Amount
$430,383.74
The original contract completion date was September 22, 2003. Due to change order
work, delays in water shutdowns, and miscellaneous site conditions, the completion
date was extended to January 13, 2004. The work was substantially complete by that
date. Minor punch list items were completed by March 8, 2004.
Prepared by: Submitted by:
R. Gunther, P.E. _Step B
Construction Engineer Pu Ic yuorks
aoum
Director