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HomeMy WebLinkAbout11/15/2011, C2 - MID HIGUERA REHABILITATION, SPECIFICATION NO. 90073 M.Em council 11/15/2011 [A: acEnaa Report hmNmb` ca- 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. C2-1 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 C2-2 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 rkamaa agenda reports\pubk works®rMl1\90073 adv.doc C2-3 ATTCHMENT( PROJECT LOCATION �P� 9�45 l QP 9 o /ANCHI z SANDERCOCK w w 41 C� w = C° BRANCH I SOUTH i city of MID HICUERA REHABILITATION san Wis OBISpo LOCATION MAP -4