HomeMy WebLinkAboutAgenda Report - May 16, 2007 E-0300 -
AGENDA ITEM __
3
&M CITY OF Lom
COUNCIL COMMUNICATION
IM
AGENDA TITLE: Approve Plans and Specifications and Authorize Advertisement for Bids for
Asphalt Rubber Cape Seal, Various Streets, 2007
MEETING DATE: May 16,2007
PREPARED BY: Public Works Director
RECOMMENDEDACTION: Approve the plans and specifications for the Asphalt Rubber Cape
Seal, Various Streets, 2007 project and authorize advertising for
bids.
BACKGROUND INFORMATION: This project includes the application of an asphalt rubber cape seal
on various City streets. The streets were identified through the
City's Pavement Management System based on the condition of the
street pavement and the traffic load. The attached exhibits show
the streets that will receive the cape seal.
The Asphalt Rubber Cape Seal, Various Streets, 2007 project consists of the rehabilitation and
resurfacing of various City streets with a layer of an asphalt rubberized chip seal followed by a layer of
slurry seal on top. The combination of the asphalt rubberized chip seal and the slurry is commonly
known as a cape seal. An asphalt rubberized cape seal provides a cost-effective alternative to a more
costly asphalt overlay to extend the life and rehabilitate deteriorated roads and streets within the City.
This new method of pavement rehabilitation was used for the first time in Lodi last year, and staff would
like to continue using it as another method of maximizing limited street maintenance resources.
While a slurry seal only seals the road and provides a new wearing surface, the asphalt rubberized cape
seal provides added strength, stability and crack reduction benefits similarto the performance benefits of
an overlay but at a much lower cost.
There will be temporary street closures on the day of the asphalt rubberized chip seal and again on the
day of the slurry seal. Immediately after the placement of the asphalt rubberized chip seal, the contractor
will use rollers to seat the chips into the asphalt oil. The contractorwill then provide a minimum of four
sweepings to pick up the loose chips. Two days after the placement of the chip seal (but no more than
seven days later) the contractorwill again close the street for the slurry seal. The contractor will work
with our Street Division in providing advance notificationto the public regarding the dates and times of
these temporary closures, Residentswill received a notice two weeks priorto the chip seal work and a
door hangerwill be distributed 48 hours beforethe contractor starts work on each street.
The plans and specifications for this project are on file in the Public Works Department. The number of
streets included in this project comprises the near -minimum square yardage to achieve economy -of -scale
objectives. Approximately 65,000 square yards of City streets are included in this project. Asphalt
rubber cape seal contractors require at least 30,000 square yards of streets before they will bid on a
APPROVED: r
Blair King, Emanager
K:IWPIPROJECTSISTREETS\Rubbehzed Chip Seal Slurry SeallCape Seal 20071CPS&A.doc
5/9/2007
Approve Plans and Specifications and Authorize Advertisement for Bids for Asphalt Rubber Cape Seal,
Various Streets. 2007
May 16,2007
Page 2
project. A project with a minimum of 60,000 square yards of asphalt rubber cape seal should provide the
City with prices that are approximately $5 per square yard.
FISCAL IMPACT: The money for this project will becoming from the Street Fund. By
investing in the recommended overlay project, significant capital dollars will
be saved by extending the useful life of the pavement and foregoing more
costly rehabilitation.
FUNDING AVAILABLE: Project Estimate $400,000
Budgeted: 2006107 fiscal year
Ki ans, Budget Manager
Richard C. Prima, Jr.
Public Works Director
Prepared by Wesley K. Fujitani. Senior Civil Engineer
Attachments
cc: PurchasingOlfioer
Streets and Drainage Manager
KAWPTROJECTSISTREETS1Rubberized Chip Seal—Slurry SeaACape seal20071CPS&AAoc 5111/2007
II
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