HomeMy WebLinkAbout11/15/2011, C2 - MID HIGUERA REHABILITATION, SPECIFICATION NO. 90073 M.Em
council 11/15/2011
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CITY O F SAN LUIS OBISPO
FROM: Jay D. Walter, Director of Public Works
Prepared By: Dan Van Beveren, Senior Civil Engineer
SUBJECT: MID HIGUERA REHABILITATION,SPECIFICATION NO. 90073
RECOMMENDATION
1. Approve plans and specifications for the Mid Higuera Rehabilitation Project, Specification No.
90073.
2. Approve the transfer of $27,500 from various Utilities Master accounts to the Mid Higuera
Rehabilitation project account: $16,500 from the Water Distribution System Improvements
Master account and $11,000 from the Collection System Improvements Master account.
3. Authorize staff to advertise for bids and authorize the City Manager to award the contract if the
lowest responsible bid is within the Engineer's Estimate of$565,000.
DISCUSSION
Higuera Street from Marsh Street to South Street has been identified as an arterial street in need
of pavement restoration. At one time, a widening project was envisioned for this area, and grant
funding obtained to support some of the work. On February 16, 2010, Council directed staff to
revise the scope of the "widening"project to only include pavement restoration and traffic signal
replacements. This direction was based on the overall cost of the widening project exceeding the
project's available budget, and that using the Federal grant for the paving of the street was a
project that was both achievable within the available budget and one that addressed the
immediate need for pavement restoration.
Higuera Street is an old concrete street which was first constructed over 100 years ago. In the early
1970s, Higuera Street was overlaid with asphalt concrete as a means of smoothing the rough ride of
the aging concrete surface. The asphalt surface has now deteriorated to where the street is in need
of rehabilitation, but the underlying concrete street is in good structural condition. The pavement
rehabilitation strategy for this project is to grind the existing asphalt material from the concrete
street surface, and to replace it with two layers of new asphalt and a reinforcing grid between the
asphalt layers. Pavement reinforcing grid has been found to be effective in minimizing reflective
cracking in concrete streets which are paved over with asphalt, and has been used throughout the
City on similar projects, including recently in the paving of upper Monterey Street earlier this year.
The installation of pavement reinforcing grid is included within the scope of this project as an
additive alternate. This will allow a determination to be made at the time of bid award as to whether
the expense appears to be cost effective in terms of long term pavement preservation.
The Americans with Disabilities Act (ADA) requires curb ramps to be upgraded as part of a paving
project. As such, this project includes the replacement of several existing curb ramps within the
project limits.
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Mid Higuera Rehabilitation (90073) Page 2
The existing traffic signals at the intersection of Marsh and Higuera as well as those at the
intersection of Higuera and High are older signals which do not meet current standards. With the
availability of grant funding eligible to be used toward signal replacements, the replacement and
upgrade of these two intersections' traffic signals are included in the scope of work for this project.
Culvert repairs, waterline and sewerline upgrades and microsurfacing projects planned in the
corridor were all coordinated and will be complete before the start of this project in an effort to
minimize work overlaps and reduce the likelihood of the new pavement being cut.
CONCURRENCES
A Notice of Exemption has been filed with the Community Development Department per the
requirements of the California Environmental Quality Act (CEQA). Additionally, a Categorical
Exclusion has been filed by the State of California Department of Transportation (Caltrans) as the
lead agency in processing the equivalent federal document per the requirements of the National
Environmental Policy Act (NEPA).
In order to advertise the project for construction bids, the Federal Highway Association must issue
an "Authorization to Proceed with Construction" to the City. A request for authorization has been
submitted by the City and staff is anticipating the receipt of the Authorization to Proceed in
mid-December. Upon receipt of this document, the project will be advertised for bids.
FISCAL IMPACT
The majority of the cost is funded from the project's construction phase which contains a
remaining balance of$608,000. This budget consists of the remaining balance of$484,000 of a
federal grant, the remaining balance of a State Highway Account (SHA) grant of$100,000 and
Transportation Impact Funds (TIF) in the amount of$24,000.
Water and sewer utility improvement funds are currently available in the water fund and sewer
fund Master accounts. This funding will support the adjustment of water and sewer facilities to
the new pavement elevations. Staff recommends utilizing funding in the amount of$27,500 from
the Water Distribution System Improvements Master account and $22,000 from the Collection
System Improvements Master account as detailed in the table below. Currently, there is
$1,743,000 available in the Water Distribution System Improvements Master account and
$2,967,000 in the Collection System Improvements Master account. There is sufficient funding
to support this request
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Mid Higuera Rehabilitation (90073) Page 3
.Nionturcy Street Rehabilitation Pro.ject (91008)
Water Sewer Collection
Higuera Street Distribution System Improve
Rehabilitation System Improve Master Account Total
(90073) Master Account (90239)
(90227)
Construction Estimate: $540,000 $15,000 $10,000 $565,000
Contingencies: $54,000 $1,500 $1,000 $56,500
Material Testing: $10,000 $0 $0 $10,000
Printing: $1,000 $0 $0 $1,000
Total for Construction: $605,000 $16,500 $11,000 $632,500
Current Funds Available: $608,000 $1,743,000 $2,967,000
ATTACHMENT
Location Map
AVAILABLE FOR REVIEW IN THE COUNCIL OFFICE
Plans and Specifications
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