Subject: TRIMBLE-MORRILL SANITARY SEWER REHABILITATION PHASE II PROJECT
Council District 4
Report on bids and award of contract
for the Trimble-Morrill Sanitary Sewer Rehabilitation Phase II Project to the
low bidder, Gelco Services, Inc. in the amount of $845,760, and approval of a
contingency in the amount of $85,000.
BACKGROUND
The Trimble-Morrill
Sanitary Sewer Rehabilitation Project will restore capacity to an existing
24-inch reinforced concrete pipe and twin 18-inch reinforced concrete pipe
(RCP) siphon on Montague Expressway and Trade Zone Boulevard. The project was developed in response to
video tapes indicating moderate to severe corrosion of the reinforced concrete
sewer. This resulted from long-term
exposure to hydrogen sulfide gas that developed in the upstream reaches of the
sewer.
Rehabilitation
is proposed on Montague Expressway and Trade Zone Boulevard from O’Toole Avenue
to Ringwood Avenue (see attached map).
The total length of the project is approximately 5,400 linear feet. Construction is scheduled to begin in
September with completion in February 2004.
The project will utilize a cured-in-place (CIPP)
rehabilitation lining process. This
method was selected because it minimizes inconvenience to the surrounding area
during construction and will eliminate the need for extensive excavation. CIPP requires pumping of sewer flows around
the segments to be lined. Project
specifications include provisions to mitigate the noise and odor that may be
created by the pumping.
Provisions have been included in the contract that will
restrict working hours to minimize the construction impact on traffic and
inconvenience to residents and businesses. Provisions have also been included
that direct the contractor to coordinate construction activities with the
County of Santa Clara due to their jurisdiction of Montague Expressway.
Bids were opened on April 10, 2003,
with the following results:
|
Contractor |
Bid Amount
|
Variance Amount |
Over/(Under)
Percent
|
|
Wesco Infrastructure Technologies
(Torrance, CA) |
$1,157,467 |
$213,152 |
23 |
|
Engineer’s Estimate |
944,315 |
--- |
--- |
|
Rheeline, Inc.
(Orange, CA) |
915,051 |
(29,264) |
(3) |
|
Insituform Technologies, Inc.
(Benicia, CA) |
894,540 |
(49,775) |
(5) |
|
Gelco Services, Inc.
(Salem, OR) |
845,760 |
(98,555) |
(10) |
The
low bid submitted by Gelco Services, Inc. is 10 percent under the Engineer’s
Estimate. Staff considers this
reasonable for the work involved.
Council
Policy provides for a standard contingency of ten percent on public works
projects involving underground
utilities. The standard contingency is
appropriate for this project.
Staff
has coordinated with the County of Santa Clara, State of California, Union
Pacific Railroad, the Santa Clara Valley Water District and City of Milpitas in
order to assist the contractor in obtaining all permits required to pursue the
work.
This
project was listed on the City’s Internet Bid Line and advertised in the San José Mercury News and San José Post Record. Bid packages for all Department of Public
Works construction projects are provided to various contractor organizations
and builder’s exchanges.
COORDINATION
This agreement and memo have been coordinated with the Departments
of Finance and Planning, Building and Code Enforcement, the City Attorney’s
Office and the City Manager’s Budget Office.
1. AMOUNT OF RECOMMENDATION: $845,760
2.
COST OF PROJECT:
|
Project Delivery |
$200,000 |
* |
|
Construction |
845,760 |
|
|
Contingency |
85,000 |
|
|
TOTAL |
$1,130,760 |
|
*$18,335.22 of the
Project Delivery costs were expended in prior fiscal year 2001-2002.
3. SOURCE
OF FUNDING: 545 – Sewer Service &
Use Charge Capital Improvement Fund
4. OPERATING
COSTS: This project is consistent with
the Council-approved Budget Strategy Economic Recovery section in that it will
spur construction spending in our local economy. The proposed operating and maintenance costs of this project have
been reviewed, and it has been determined that the project will reduce
maintenance and have a positive impact on the General Fund operating
budget.
|
Fund # |
Appn. # |
Appn.Name |
RC # |
Total Appn. |
Amt.for Contract |
Adopted Budget Page |
Last Budget Action (Date,Ord,No) |
|
545 |
5729 |
Trimble Morrill Sewer |
116313 |
2,827,000 |
845,760 |
Page 701 |
N/A |
|
|
|
Total |
|
2,827,000 |
845,760 |
|
|
Exempt,
PP02-11-345.
KATY ALLEN
Director, Public Works Department