HomeMy WebLinkAbout08/17/2010, C7 - SEWERLINE REPLACEMENTS 2010-11, PROJECT 2, SPECIFICATION NO. 90938 CO Un C 1 L Mrcrins lrc
August 17,2010
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CITY OF SAN LU IS O B I S P 0
...............................................
FROM: Jay D. Walter, Director of Public Works -70W
Prepared By: Jennifer Lawrence, Engineering Technician.II1
SUBJECT: SEWERLINE REPLACEMENTS 2010-11, PROJECT 2, SPECIFICATION
NO. 90938
RECOMMENDATIONS
1. Approve the plans and specifications for the "Sewerline Replacements 2010-11, Project 2",
Specification No. 90938.
2. Authorize staff to advertise for bids and authorize the City Manager to award the contract if
the lowest responsible bid is within the Engineer's Estimate of$507,900.
DISCUSSION-
Replacement of wastewater collection pipes is part of an ongoing program to replace aging,
deteriorating, or otherwise troublesome sewer infrastructure. This program has.several objectives,
among them are:
1) Replacing aging,deteriorated, deficient, or otherwise troublesome sewer infrastructure
2) Reducing or eliminating periodic maintenance requirements and emergency repairs
3) Reducing infiltration and inflow of storm water
4) Ensuring uninterrupted sewage flow without health hazard or effluent leakage
This project will accomplish these objectives for part of the City wastewater collection system..
The scope of this project includes replacing sewerlines at sections of Peach, Santa Rosa and
Loomis Streets. The existing sewerlines in these streets are failing due to age and root intrusion.
They require high levels of maintenance and are at capacity. The majority of these lines will be
replaced and upsized to 8" diameter pipe to better accommodate existing service requirements.
The existing 6" sewerline in Peach Street from Johnson to Pepper also requires frequent
maintenance, but will be replaced with a new 6"pipe as service requirements for that line are not
projected to increase.
This project requires an encroachment permit from Caltrans and will advertise for bids once the
permit is obtained.
CONCURRENCES
The Community Development Department has given this project a categorical exemption from
environmental review.
90938: Sewerline Replacements 2010-11, Project 2 Page 2
FISCAL IMPACT
The replacement locations are identified in the 2009-11 Financial Plan, Appendix B, page 3-113.
These sewerline replacements will be funded from the Wastewater Collection System
Improvements Master account. Currently, there is $3,601,718 in the Master Account which is
sufficient funding to support the project costs. Staff recommends transferring funding from the
Master Account to the project account at time of contract award, based on construction bid
amounts.
lEstimated Project Costs
Construction(Engineer's Estimate): $507,900
Construction Contingencies: $75,000
Total for Construction: $582,900
Materials Testing $10,000
Miscellaneous (incl renting) $500
Total for other costs: $10,500 I
Total Cost of Project _ $593,400
Master Collect Syst Account (90— 239)
.Available Funding: $3,601,718
The Wastewater Collection System Improvements Master account has a current available balance
of$3.6 million reflecting the 2009-10 available budget carried forward plus the approved 2010-
11 budget allocation. It is important to note that a large wastewater collection project approved in
2009-10 with a budget estimate of$1,295,000 is currently projected for construction in mid to
late 2010-11 in coordination with the street pavement management plans and associated
timelines. Other wastewater collection projects are currently in pre-construction phases including
environmental and/or design.
Additionally, on July 20, 2010, the City Council approved the plans and specifications for
Sewerline Replacements 2010-11, Project 1 with project costs estimated at $675,690. While the
$3.6 million appears significant at this point in time, the associated wastewater collection
projects will be moving forward to the construction phase soon.
ATTACHMENT
Vicinity Map
AVAILABLE FOR REVIEW IN THE COUNCIL OFFICE
Plans and Special Provisions
T:\Council Agenda Reports\Public Works CAR\2010\CIP\90938 Sewerline Replacements 2010-2011,Proj 2\90938 CAR adv.doc �J ��
ATTACHMENT
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PROJECT 2—
SPECIFICATION NO. 90938
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