Loading...
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 ~...a.._n_ - --~.~..~.Q~. ~..~..._<._..-,u.. .~~_ --.a~_~r_.R. N:\PPWIM.SNAGEIviFNT\COllNCIL\COUNCIL REPOATS\2010 ReportsHvlay l7\09-IOC.FY2009-10 strec[ resurCacing.capeseal pse.cfoc 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 This Page Intentionally Left Blank