2010051706 - Project 09-10C - FY 2009/10 Street Repair and Resurfacing Program - Advertise for Bids1oWN of MEETING DATE: 05/17/10
ITEM NO.
' jy~.Vll ~• `
ios9`~~ ~ os COUNCIL AGENDA REPORT
DATE: MAY 4, 2010
TO: MAYOR AND TOWN COUNCIL ~i~-~-
FROM: GREG CARSON, TOWN MANAGER ~'~ li
SUBJECT: PPW PROJECT NO. 09-lOC - FY 2009/10 STREET REPAIR AND
RESURFACING PROGRAM 411-811-9901
ADOPT RESOLUTION APPROVING PLANS AND SPECIFICATIONS FOR
FY 2009/10 STREET REPAIR AND RESURFACING PROGRAM CAPE SEAL
AND AUTHORIZING STAFF TO ADVERTISE FOR BIDS
RECOMMENDATION:
Adopt a Resolution approving plans and specifications for FY 2009/10 Street Repair and
Resurfacing Program Cape Seal and authorizing staff to advertise for bids.
BACKGROUND:
The adopted FY 2009/10 Capital Improvement Program designates funding for the Street Repair
and Resurfacing Program. This is a recurring annual project for street rehabilitation throughout
the Town to enhance vehicular safety and maintain the Town's roadway infrastructure.
The Town's street program is evaluated and managed using the Pavement Management System
(PMS) program. This PMS program is produced and distributed by the Metropolitan
Transportation Commission (MTC). Furthermore, it is mandated that all Bay Area
municipalities utilize this program. The purpose of the program is to document and monitor
street pavement conditions throughout Bay Area roadways. This program gives an individual
score known as the Pavement Condition Index (PCI) to each street being evaluated. The MTC
allocates grant funds based on the PMS program data.
DISCUSSION:
The process of determining which streets to maintain which treatments are most appropriate is
complex. The classification of each street considered for resurfacing is a key element in that
process.
t~J~
PREPARED BY: TODD CAPURSO
Director of Parks and Public Works
Reviewed by: Assistant Town Manager Town Attorney Clerk Admhiistrator
Finance Community Development
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PAGE2
MAY 4, 2010
MAYOR AND TOWN COUNCIL
SUBJECT: PPW JOB NO. 09-1 OC - FY 2009/10 STREET REPAIR AND RESURFACING
PROGRAM 411-811-9901
DISCUSSION (confd):
There are three major categories of streets: arterials, collectors, and residential. Arterial and
collector street repair and resurfacing are often eligible for Federal and/or State grant funding,
while residential streets are not, meaning they are typically funded with local funds.
Approximately 20% of the Town's streets are classified as arterials, such as Los Gatos
Boulevard, Winchester Boulevard, Lark Avenue. Approximately 18% of the Town's streets are
classified as collectors, such as University Avenue, Wedgewood Avenue, and Shannon Road.
The remaining 62% are classified as residential.
When sheets are designed and constructed, the typical estimated life of the street is 20 years
without major maintenance. However, the life cycle of a street can be greatly affected by a
number of factors, including;
• Preventative maintenance
• Volume and type of traffic (especially heavy truck traffic)
• Construction materials and techniques
• Condition of the sub-grade
• Environment (i.e. temperature differential)
• Water intrusion from rain and landscaping
• Frequency of trench cuts in the roadway
Each of the above factors can contribute to the premahue deterioration of street surfaces,
impacting the street section's stuuctural integrity and leading to structural failures. Once a sheet
has failed, the only effective remedy is a complete reconstruction. In addition to the significant
financial costs, there are other factors are also considered, including the potential disturbances to
residents and businesses as well as overall traffic flow, particularly during high demand periods.
The PCI categories for streets are established in the PMS program. A brand new street would
have a PCI of 100. The PCI values are broken down into four (4) categories:
Classification I -Very Goad (PCI 70 to 100) have little or no distress, with the possible
exception of utility patching in good condition, or signs of light cracking that may be
slightly weathered.
Classification II -Good (PCI 50 to 69) have severe weathering, moderate levels of
distress, limited patching, and non-load-related cracking.
Classification III -Poor (PCI 26 to 49) have moderate to severe levels of dish~ess
including load-related types of cracking, such as alligator cracking.
PAGE3
MAY 4, 2010
MAYOR AND TOWN COUNCIL
SUBJECT: PPW JOB NO. 09-1 OC - FY 2009/10 STREET REPAIR AND RESURFACING
PROGRAM 411-811-9901
DISCUSSION (cont'd):
Classification IV -Very Poor (PCI 0 to 25) have severe levels of distress, large quantifies
of distortion or alligator cracking, pavement failures past possible rehabilitation activities.
The Town updated the PMS in January 2010. The results of this report illustrate that the overall
condition of Town streets aze generally in the Classification I and II range. While the overall
PCI for Town streets has been rated at 69, the ratings for each category of street are as follows:
• Arterials street -PCI 85
• Collector streets -PCI 70
• Residential streets -PCI 64
Over the past few years, the demand for pavement rehabilitation work has exceeded the aznount
of available resources. Historically, pavement resurfacing work was performed using a
combination of both in-house and contractual resources. As a result of decreasing resources,
most of the resurfacing work is now contracted out, while in-house staff focuses on corrective
measures such as pothole repairs and targeted dig-out work. The Town's capital resources must
now address an expanded scope of work.
In order to maximize the use of Town resources, staff has investigated several options for street
resurfacing. One of methods identified has been the use of a Rubberized Asphalt Concrete
(RAC) Cape Seal process as an alternative to the more conventional Asphalt Concrete (AC)
overlay. The base material is made from recycled rubber, which consists of grounded or
granulated rubber particles derived from auto, light truck, or other sources that use a high content
of natural rubber.
The RAC Cape Seal process is the application of a rubber chip seal followed by an application of
a slurry seal for fmal surfacing. This results in a thin pavement surfacing that provides improved
resistance to reflective cracking and a better overall vehicular ride. This strategy also provides
significant cost savings when compared to conventional overlay strategies. This application has
a life expectancy of approximately ten years.
Chip seal applications have long been an accepted method to extend the useful life of sheets.
They have been used to seal the pavement, provide an improved skid resistance, and extend the
pavement life. However, when using conventional binders and most polymer modified binders,
the pavement must be relatively crack free or require significant sm~face preparation prior to
placement of the binders in order to obtain an adequate service life. Because an RAC binder has
the unique property of resisting reflection cracking, the surface preparation prior to placement of
asphalt rubber chip seals is significantly reduced or even eliminated inmost cases, making it
even more cost-effective than other comparable methods.
PAGE4
MAY 4, 2010
MAYOR AND TOWN COUNCIL
SUBJECT: PPW JOB NO. 09-lOC - FY 2009/10 STREET REPAIR AND RESURFACING
PROGRAM 411-811-9901
DISCUSSION (cont'd):
The streets on the Cape Seal list for this project are within the neighborhoods of Belgatos,
Arroyo Grande, Montclair, Hillbrook, and Camino Del Cerro.
Plans and Specifications for this project are complete and will be available for review in the
Clerk Department on Friday, May 14 prior to the Council meeting.
CONCLUSION:
It is recormnended that the Town Council adopt the attached Resolution approving the plans and
specifications for the Street Repair and Resurfacing Program Cape Seal 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.
Attaclunents:
Resolution approving plans and specifications for FY 2009/10 Street Repair and Resurfacuig
Program Cape Seal and authorizing staff to advertise for bids
Attachment 1
RESOLUTION
RESOLUTION OF THE TOWN COUNCIL
OF THE TOWN OF LOS GATOS
APPROVING THE PLANS AND SPECIFICATIONS FOR
PPW PROJECT NO.09-lOC - FY 2009/10
STREET REPAIR AND RESURFACING PROGRAM CAPE SEAL
AND AUTHORIZING STAFF TO ADVERTISE THE PROJECT FOR BIDS
WHEREAS, plans and specifications for the FY 2009/10 Sheet Repair and Reswfacing
Program Cape Seal have been prepared by the Town Engineer and duly filed with the Clerk
Administer; and
WHEREAS, public improvements are of benefit to the project area or the immediate
neighborhoods of the project area; and
WHEREAS, the Town Council of the Town of Los Gatos has reviewed said plans and
specifications.
NOW, THEREFORE, BE IT RESOLVED that the Town Council approves the plans
and specifications for the FY 2009/10 Street Repair and Resurfacing Program Cape Seal.
BE IT FURTHER RESOLVED that the Clerk Administer is hereby authorized and
directed to advertise the Street Repair and Resurfacing Program for bids in the manner
prescribed by the Town Municipal Code.
PASSED AND ADOPTED at a regular meeting of the Town Council of the Town of
Los Gatos held on the 17°i day of May, 2010, by the following vote:
AYES:
NAYS:
ABSENT:
ABSTAIN:
SIGNED:
MAYOR OF THE TOWN OF LOS GATOS
LOS GATOS, CALIFORNIA
ATTEST:
CLERK ADMINISTER
OF THE TOWN OF LOS GATOS
LOS GATOS, CALIFORNIA
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