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FROM:
COUNCIL AGENDA REPORT
APRIL 24, 2012
MEETING DATE: 05/07/12
ITEM NO: 6
MAYOR AND TOWN COUNCIL
GREG LARSON, TOWN MANAGER
SUBJECT: PPW JOB NO. 11 -02 — HICKS ROAD AND PHILLIPS AVENUE STORM
DRAIN CULVERT IMPROVEMENTS
APPROVE PLANS AND SPECIFICATIONS FOR THE HICKS ROAD AND
PHILLIPS AVENUE STORM DRAIN CULVERT IMPROVEMENT PROJECT
AND AUTHORIZE STAFF TO ADVERTISE THE PROJECT FOR BID.
RECOMMENDATION
Approve plans and specifications for the Hicks Road and Phillips Avenue Storm Drain Culvert
Improvement Project and authorize staff to advertise the project for bid.
BACKGROUND
The adopted 2011/12 — 2015/16 Capital Improvement Program designates funding for
infrastructure improvements in Los Gatos and is consistent with the Town's goals to improve the
quality of Town public facilities and infrastructure.
Much of the existing public infrastructure in the hillsides of Los Gatos was not built to the
current standards. The aging and deterioration of these facilities requires repairs and replacement
on a regular basis. The storm drain system in the hillside area is generally up made of culverts
that run underneath roadways to transfer storm run -off to the larger drainage channels along the
edges of the roadways. Almost all these storm drain culverts are made of corrugated metal pipes
that rust over time and will require replacement.
DISCUSSION
The Town has replaced a number of older storm drain culverts in the past few years which have
preserved the roadways from failure and damage by storm run -off. On Hicks Road and Phillips
PREPARED BY : TODD CAPURSO
Director of Parks and Public Works
Reviewed by: Assistant Town Manager U Town Attorney Finance
Ni\ PPW\ MANAGEMENT \COUNCIL \COUNCIL REPORTS\2012 Reports\May 7\ 11- 02. Hicks.Philhps.SDculvert.pse.docx
PAGE 2
APRIL 24, 2012
MAYOR AND TOWN COUNCIL
SUBJECT: PPW JOB NO. 11 -02 — HICKS ROAD AND PHILLIPS AVENUE STORM
DRAIN CULVERT IMPROVEMENTS
DISCUSSION (cont'd.)
Avenue, there are two old metal culverts that are severely rusted and are in need of repair and
replacement.
Due to the unique site conditions and depth of these two culverts, the option to cut the road and
remove and replace these culverts is not practical and would create an unacceptable disruption
for the roadway traffic. Additionally, this work would be cost prohibitive.
Staff has investigated other options to perform this work and has determined that these two
culverts can be relined without the need to cut the road and remove these culverts. This is a
trenchless method for restoring structural integrity and removing infiltration from old metal
pipes. In this process, a resin - impregnated tube is installed into a damaged pipe. This process
results in a seamless, jointless "pipe- within -a- pipe" with a smooth, continuous inner surface
which usually increases flow capacity. This pipe lining process has been successfully used for
similar applications by other agencies and is a proven product.
Plans and Specifications for this project are complete and will be available for review in the
Town Clerk Department on Friday, May 4, 2012, prior to the Town Council meeting.
CONCLUSION
It is recommended that the Town Council approve the plans and specifications for the Hicks
Road and Phillips Avenue Storm Drain Culvert Improvement Project and authorize staff to
advertise the project for bids.
ENVIRONMENTAL ASSESSMENT
This project is Categorically Exempt pursuant to Sections 15301 (c), and 15303 (e), and 15304
(b) of the State CEQA guidelines.
FISCAL IMPACT
There are sufficient funds available for this project through the approved FY 2011/12 Capital
Improvement Program Budget.