HomeMy WebLinkAbout04/04/2011, C9 - WATERLINE REPLACEMENTS 2010-2011, SPECIFICATION NO. 90936 Council, °1m° °i�1pri15,2011
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CITY O F SAN LUI S OBI S PO
FROM: Jay D. Walter, Director of Public Works j
Prepared By: Jennifer Lawrence, Engineering Technician III
SUBJECT: WATERLINE REPLACEMENTS 2010-2011, SPECIFICATION NO. 90936
RECOMMENDATION
1. Approve the plans and specifications for the "Waterline Replacements 2010-2011" Project,
Specification No. 90936.
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$862,935.
DISCUSSION
Replacement of water distribution pipes and related facilities is an ongoing program to replace
aging, substandard and deteriorating infrastructure. This program has three objectives:
1) Ensure reliable water services
2) Reduce the need for emergency repairs
3) Enhance available fire flows
Based on priorities set by the Utilities Department, certain waterlines have been selected for
replacement as shown on the Attachment. The assumed useful life expectancy of water lines is
50 years. The waterlines proposed for replacement with this project were originally installed in
1940s, 50s and early 60s. Presently the water mains on this project are substandard, deteriorated
and leaking. Their replacement will eliminate capacity issues and improve water flow for fire
protection. Replacing these waterlines will result in lower costs and reduced customer impacts
that would otherwise be associated with emergency repairs and provide more time for preventive
maintenance, which prolongs the expected service life of Water Distribution facilities and
equipment.
CONCURRENCES
The Community Development Department has granted a Notice of Exemption since minimal
environmental impacts are anticipated.
FISCAL IMPACT
Waterline improvements are included in the 2009-11 Financial Plan Appendix B, pages 3-74 for
Water Distribution System Improvements which identifies a cost estimate of$1,031,000 for this
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Waterline Replacements 2010-2011,Specification No. 90936 Page 2
project. Added to this project, but not included in the 2009-11 Financial Plan, is a waterline
replacement on Higuera Street from High to South which adds an estimated cost of$163,500.
This line was advanced to allow replacement to occur prior to the reconstruction of this area of
Higuera Street. Funding for this project is . available in the .Water Distribution System
Improvements Master Account which has a current available balance of $1,638,320. The
estimated project costs are displayed below. A Budget Amendment Request will be processed to
transfer funding from the Master account to the project's construction account. There is sufficient
funding to support this project request.
Watedine Replacements 2010-2011 l3whyet
;Estimated Project Costs
Construction(Engineer's Estimate). $862,935
_ .
-Construction Contingencies $130,000
Total for Construction: $992,935
i
.. j
Materials Testin $10,000g•
Miscellaneous (incl. prmtmg) $500 1
Total for other costs: $10,500
_ E
=Total Cost of Prolect� $190039435
;Dist System Impr Master Account (9022 7)
Available Budget $ 1,638,320
ATTACHMENT
Location Map
AVAILABLE FOR REVIEW IN THE COUNCIL READING FILE
Plans and Special Provisions
T:\Council.Agenda Reports\Public Works CAR\2011\CIP\90936 Waterline Replacements 2010-11\90936 CAR adv.doc
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SPECIFICATION NO. 90936 C9