HomeMy WebLinkAbout05/03/2011, C 3 - MICROSURFACING SUMMER 2011 MEASURE Y PROJECT, SPECIFICATION NO. 91041 & STREET RECONSTRUCTION SUMME council 5/3/2011
j aGEnaa Report
CITY OF SAN LUIS OBI SPO
FROM: Jay D. Walter, Director of Public Works 7D1W
Prepared By: Manny Guzman, Engineer II
SUBJECT: MICROSURFACING SUMMER 2011 MEASURE Y PROJECT,
SPECIFICATION NO. 91041 & STREET RECONSTRUCTION SUMMER
2011 MEASURE Y PROJECT, SPECIFICATION NO. 91040.
RECOMMENDATIONS
1. Approve plans and specifications for the Microsurfacing Summer 2011 Project, Specification
No. 91041.
2. Approve plans and specifications for the Street Reconstruction Summer 2011 Project,
Specification No. 91040.
3. Authorize staff to advertise for bids and authorize the City Manager to award the contract if the
lowest responsible bid for the Microsurfacing Summer 2011 Project is within the Engineer's
Estimate of$940,000.
4. Authorize staff to advertise for bids and authorize the City Manager to award the contract if the
lowest responsible bid for the Street Reconstruction Summer 2011 Project is within the
Engineer's Estimate of$1,245,400.
DISCUSSION
The City's Pavement Maintenance Plan (PMP)was adopted by the City Council on April 14, 1998.
The key elements of the PMP include establishment of eight pavement maintenance areas within
the City and a maintenance plan in which each of these eight areas will receive maintenance over an
eight-year period. A ninth area, the downtown, is designated to receive maintenance on an annual
basis.
On October 6, 2009 Council gave new direction for the PMP to give a higher priority to arterial and
downtown streets. Since 2006, ten projects have been completed that repaired portions of twenty-
one arterial roadways (Attachment 2). In the 2011-12 fiscal year, the Street Reconstruction and
Microsurfacing projects will overlay or microsurface portions of Foothill, Santa Rosa, Broad,
Higuera, Osos and Tank Farm Road. Also scheduled for reconstruction under separate contracts in
the 2011-12 fiscal year are Chorro between Palm and Higuera, Johnson between Islay and Lizzie,
and Johnson between Pismo and Breck. Due to waterline replacement work, Santa Barbara Street is
not included in this year's work plan, but is planned in 2012. All these streets are classified as
arterial streets by the City's Circulation Element.
In anticipation of the 2011-12 fiscal year's microsurfacing project, the City's Street Maintenance
staff has performed isolated pavement repairs and crack sealing on the streets included within the
scope of the specified microsurfacing project. This preparatory work is now complete and will
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Microsurfacing &Street Reconstruction Summer 2011 Projects Page 2
increase the long-term effectiveness of the microsurfacing application and reduce the construction
costs. Microsurfacing is.a polymer modified cold-mix paving system that uses a quick set emulsion
and can be ready to support traffic in a few hours. Microsurfacing estimated costs are about 11.5%
of the cost of a 2 inch asphalt overlay, and 2.3% of the cost of complete reconstruction.
Microsurfacing works by sealing the pavement and subgrade from water intrusion and providing
some additional wearing surface. Regular use of microsurfacing can postpone more expensive
reconstruction work for significant periods of time.
The project also includes some drainage work. Three catch basins on Higuera between Bridge and
Vachell Lane will be upgraded to the current City standards. Existing catch basins are top opening
structures with metal grates in the bike lane which have been identified as roadway obstacles by the
bicycling community. On Lawrence Drive several hundred feet of curb and gutter will be
removed and replaced with a grated line drain. Trees that have since been removed lifted the curb
and gutter resulting in poor street drainage.
A continuous grated line drain connected to a new catch basin will help to alleviate the ponding that
occurs in this area. Also included with the reconstruction project is the localized repair of curb,
gutter, and sidewalk in front of 1441 Nipomo and 1129 Pacific. In both locations trees have lifted
the curb and gutter resulting in poor street drainage. The driveway ramp at 1441 Nipomo will also
be repaired to match the new grades of the replaced curb and gutter. Neglecting repairs of the curb
and gutter and the driveway ramp will result-in water ponding and could reduce the service life of
the new paving surface.
Americans with Disability Act (ADA) accessible curb ramps required by law for street
reconstruction work will also be upgraded as part of the street reconstruction. A total of 26 existing
street comers will be retrofitted with new curb ramps or truncated domes to meet current ADA
standards. This work is in addition to two other curb ramp projects schedule for construction this
summer.
CONCURRENCES
The project qualifies for a categorical exemption from environmental review, and a notice of
exemption has been filed through the Community Development Department for both the
Microsurfacing Summer 2011 project and the Street Reconstruction Summer 2011 project.
FISCAL IMPACT
There is currently $1,068,227 in the Street Reconstruction & Resurfacing Master Account and
additional construction funding of$1,450,000 (the construction portion of the $1,700,000 request
for 2011-12) is proposed in the 2011-13 Financial Plan. If approved, this additional funding will
bring the total funding available to $2,518,227 to support this request for$2,514,500 ($1,080,750
for 91040 & $1,433,750 for 91041).
Also, there is a current available balance of $101,535 from the Bicycle Facility Improvement
project that can be used to support the $22,000 portion of the 91040 project and the $440 portion
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Microsurfacing &Street Reconstruction Summer 2011 Projects Page 3
of the 91041 project. This funding will be utilized to upgrade three catch basins and the revisions
to the drainage inlet grates.
For the 91041 projects, water and sewer utility improvement budget is currently available in the
Water Distribution System Improvements Master account (current balance of$407,885) and the
Collection System Improvements Master account (current balance of $190,836) to fund the
proposed costs of $24,000 and $3,500, respectively. This funding supports the adjustment of
water and sewer facilities to the new pavement elevations.
The Street Reconstruction and Microsurfacing projects will not be awarded until after the start of
the new fiscal year, 2011-12. By the time bids are received, Council will have concluded the
budget process. If Council has funded the 2011-13 Street Reconstruction & Resurfacing Master
Account at the time of contract award, a Budget Amendment Request will be generated to
transfer funding to the appropriate project's account for construction. If this funding has not
been approved, staff will recommend rejection of bids and re-advertising of a smaller project.
This project is 98% funded through Measure Y, the half-cent sales tax measure approved by the
City's residents.
Estimated Project Cost by Funding Sources
Nlicrosurfacino Sunini-er 2011 Project (91040)
Street R& R Master Bicycle
Account(90346) Facility Impr. Total
(90572)
Construction Estimate: $920,000 $20,000 $940,000
Contingencies: $92,000 $2,000 $94,000
Construction Management: $65,000 $0 $65,000
Material Testing: $3,000 $0 $3,000
Printing: $750 $0 $750
Total for Construction: $1,080,750 $22,000 $1,102,750
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Microsurfacing&Street Reconstruction Summer 2011 Projects Page 4
Estimated Project Cost by Funding Sources
Street Ileconstroction Stininier 2011 Project (91041)
Sewer
Bicycle Water Collection
Street R& R Master Facility Impr. Distribution System Total
Account(90346) (90572) System Improve Improve
Master(90227) Master
90239
Construction Estimate: $1,220,000 $400 $22,000 $3,000 $1,245,400
Contingencies: $124,000 $40 $2,000 $500 $126,540
Construction Management: $85,000 $0 $0 $0 $85,000
Material Testing: $4,000 $0 $0 $0 $4,000
Printing: $750 $0 $0 $0 $750
Total for Construction: $1,433,7501 $4401 $24,0001 $3,5001 $1,461,690
Total Proposed Costs for
both 91040&91041 : $2,514,500
Funding Available by
Fund: $2.518,227 $101,535 8407,885 $190,836
General TIF Water Sewer
ATTACHMENTS
1. Location Map
2. Map of arterial roadway work
AVAILABLE FOR REVIEW IN THE COUNCIL OFFICE
Plans and Specifications
T:\Coundl Agenda Reports\Public Works CAR\2011\CIP\91040 Street R&R Summer 2011\91041 CAR Advertise.doc.
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