HomeMy WebLinkAbout09/19/2006, C2 - TRENCH REPAIR FALL 2006, SPECIFICATION NO. 90641 council Sept 19,2006
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CITY OF SAN LUIS OBISPO
FROM: Jay D. Walter, Director of Public Works
Prepared By: Jennifer Lawrence, Engineering Technician
SUBJECT: TRENCH REPAIR FALL 2006, SPECIFICATION NO. 90641
CAO RECOMMENDATION
1. Approve plans and specifications for"Trench Repair Fall 2006, Specification No. 90641."
2. Authorize staff to advertise for bids and authorize the CAO to award the contract if the lowest
responsible bid is within the Engineer's Estimate of$115,648.
DISCUSSION
Throughout the year, City Utilities Department staff make emergency repairs to pipelines in City
streets. Once these repairs are made,.the trenches are backfilled and temporary asphalt patches are
placed at the surface of the street. These temporary patches eventually need to be replaced with a
stronger and more permanent asphalt patch.
The Public Works Department accumulates a list of the temporary patch locations from the Utilities
Department and issues a construction contract periodically to make the permanent repairs. This
project will repair approximately 79 trenches and one meter of curb and gutter throughout the City.
A complete plan of all locations is included in the Special Provisions.
CONCURRENCES
The Community Development Department has given this project a categorical exemption from
environmental review.
FISCAL IMPACT
The 2005-07 Financial Plan, Appendix B, pages 79-81, estimates an annual cost of $100,000
from Water Distribution to support Utility Trench Repair projects. Due to rising oil prices and
construction costs, as well as a greater total surface area to be repaired, the engineer's estimate
was higher on this project than previous years. Additionally, a 12% contingency was used to
account for undetermined trench degradation which may increase the required repair area and/or
undocumented repairs deemed critical to complete before next Utility Trench Repair project.
The last trench repair project was completed early 2006 in which approximately 110 trenches
were repaired. $19,000 was saved during that project which is available as an additional source
of funding for the Trench Repair Fall 2006 project. The remaining funding for the project will
come from the Water Distribution System Improvements account which has an available balance
of$1,488,082.
Trench.Repair 2006 Page 2
Engineer's Estimate: $115,648
12% Contingencies: $13,878
Total for Construction: $129,526
Miscellaneous (incl. printing): $350
Total Project Cost: $129,876
Available Funding $1,488,082
Total Project Cost ($129,876)
Remaining Balance $1,358,206
AVAILABLE FOR REVIEW IN THE COUNCIL OFFICE
Special Provisions
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