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HomeMy WebLinkAbout06/05/2007, C4 - HIGUERA STREET PAVING PROJECT FROM MORRO ST. TO NIPOMO ST. SPECIFICATION NO. 90684 council '"cm=D� 06/05/07 j acEnba nEpoM CITY OF SAN LUIS OBISPO FROM: Jay D. Walter, Public Works Director Manuel Guzman, Engineer I* SUBJECT: HIGUERA STREET PAVING PROJECT FROM MORRO ST. TO NIPOMO ST.SPECIFICATION NO. 90684 CAO RECOMMENDATION 1. Approve plans and specifications for the Higuera Street Paving Project Specification No. 90684. 2. Authorize staff to advertise for bids and authorize the CAO to award the contract if the lowest responsible bid is less than or equal to the Engineer's Estimate of$450,000 ($323,500 General Fund, $45,000 Water System Improvements, $71,500 for Fire System Improvements and $10,000 Collection System Improvements) DISCUSSION Street Reconstruction The City's Pavement Maintenance Plan (PMP) was adopted by the City Council on April 14, 1998. One element of the PMP is the improvement of the condition of street pavement located in the downtown area. This particular project includes the resurfacing of Higuera Street from Morro to Nipomo. Higuera Street last received major pavement rehabilitation approximately 30 years ago. At that time many of the downtown streets, which had been originally constructed out of concrete in the early 1900's, were overlaid with asphalt as a means of providing a smooth driving surface and improved appearance. That previously applied asphalt concrete pavement surface has now worn to the extent where it is in need of replacement. This project will remove the existing asphalt concrete and install a new asphalt concrete wearing surface. This new surface is expected to extend the service life of the existing street another 20 to 30 years. The water and sewer funds will contribute to the paving portion of the project to raise valve wells and sewer manholes to the new finished street surface. Pre paving Work An important component of the Pavement Management Plan is the coordination of work in the same area that will result in cutting of the pavement. In this case there are some items that staff believes it would be prudent to complete in coordination with the paving work. ADA Compliance Prior to construction, the existing street intersection corners will be upgraded to meet current adopted standards for access. Some of the corners will only require the installation of the tactile "domes" while others will have to be reconstructed to meet required slopes. Higuera Street Paving Project Page 2 Pedestrian Level Lighting Six new pedestrian lights and associated conduit will be put in on Higuera Street between Garden and Broad. This block was identified as a good candidate for this pilot project due to its prominent location in the downtown and the fact that the block is poorly lit. The installation will take place in accordance with the Downtown Lighting Plan adopted by Council on February 7, 2006. Pipeline The project will provide new fire service laterals for downtown buildings. For several years the Utilities and Public Works Department have worked toward completion of fire service laterals for the buildings downtown. This has been completed with both waterline and street paving projects. This project will continue that work to prevent renovation projects from cutting into the street to install the laterals. Additive Alternates The project includes three additive alternates. Theses are options the City can accept or reject at the time of the bid opening depending upon available funding and potential benefits. Broad and Pacific Intersection Paving Originally the intersection of Broad and Pacific was scheduled to be paved as part of last years pavement maintenance, however the location was removed so as to not conflict with a traffic signal project. Now that the signal is installed, pavement in this intersection will benefit from some repair. Electrical Conduit The Downtown Association (DA) is interested in providing electrical power for certain events downtown. Staff originally worked with the DA with the idea of providing service through existing traffic signal electrical services. Unfortunately, the signals have limited power available. This additive alternate will install electrical conduit in Higuera Street from a PG&E service point to a point where the DA could install their own service panel for connection: This electric conduit will be placed in Higuera Street from Garden to Broad Streets. Once bids are received, the City will consult with the DA to determine if, based on the cost, they wish to move forward with this alternate bid, as it will be funded by the DA with their budget. Paving Grid To extend the life of the new asphalt concrete overlay on Higuera Street staff has added an alternate bid to install glass grid under the overlay. Since this section of road will more than likely receive no major pavement rehabilitation in the next 30 years the City will like to reduce and retard any cracks from reflecting. Reflective cracking is a common occurrence when overlaying concrete pavement. A significant difference exists in the Engineer's Estimate cost estimate if glass grid is included. (2,4 Higuera Street Paving Project Page 3 Construction Impact Mitigation To minimize the impact of construction to this high pedestrian shopping area, staff has worked with the Downtown Association to determine the least disruptive approach to completing this project. The project has been prepared to limit the contractor's work hours to before 11:00 am. This option received support by the local merchants for the majority of the work items included in the project. One key exception to this restriction will be for those work activities such as grinding, paving, and the installation of the street lighting conduit and fire service laterals, which will require closure of the street. The contractor will be allowed to work full days so that the total duration of this intense type of work activity can be as short as possible. This approach is what has been recommended by the Downtown Association's Economic Activity Committee and these provisions have been written into the project specifications. Also discussed with the Downtown Association was the timing of the project. After considering all factors involved and to minimize the impacts to the downtown merchants and to avoid the time of year with the greatest likelihood for rain, the project has been scheduled to begin in September of this year. CONCURRENCES 1. The Downtown Association's Economic Activity Committee has recommended that start of construction be schedule for September of 2007 and that hours of work be limited as discussed in this report. 2. The Community Development Department has completed an Initial Study and issued a Mitigated Negative Declaration.. FISCAL IMPACT The Higuera Street Paving Project, Specification No. 90684 is identified in the 2005-07 Financial Plan, Appendix B, page 121. The project identifies $1,025,000 for street paving, however only $75,000 of that is identified to be used for the downtown area. The Higuera Street Lighting Conduit Project was approved in the 2006-07 Mid Budget Request and funded with$30,000. The Downtown Pedestrian Lighting is proposed in the 2007-09 Capital Improvement Plan at a funding level of$56,000. Street Reconstruction and Resurfacing is proposed in the 2007-09 Capital Improvement Plan at a funding level of$1,789,000 with $125,000 of that proposed as additional funding for the Higuera paving work. The current estimated cost for the general fund portion of the project is $363,100 which is $77,100 more than the amount identified specifically for this project in the current and proposed Higuera Street Paving Project Page 4 budgets. The new estimate is based on the bids recently received which reflected the very high increase in asphalt costs. The additional funds will come from the proposed 2007-09 street reconstruction budget. While this will reduce the amount of funding available for other street repairs by a small amount, this is a high priority location and allocating our limited paving funds for this purpose is consistent with the Council's Major City Goal for the Downtown. Water and sewer utility improvement budget is currently available in the water fund and sewer fund capital projects budgets. The funding will come from the Water Distribution System Improvements, Downtown Fire Sprinkler Reimbursement and Collection System Improvements project accounts as detailed in the table below. Estimated Project Cost Construction: $450,000 Construction Contingencies: $45,000 Cultural Resources Monitoring $10,000 Materials Testing $1,750 Printing $500 Total Cost of Project $507,250 Estimated Project Cost by Funding Source General Fund Water Fund Sewer Fund Total Distribution Sprinkler Reim Collections Project Engineer's Estimate: $323,500 $45,000 $71;500 $10,000 $450,000 Contingencies: $32,350 $4,500 $7,150 $1,000 $45,000 Cultural Resources Monitoring: $5,000 $5,000 $10,000 Material Testing: $1,750 $1,750 Printing: $500 $500 Total for Construction: $363,100 $49,500 $83,650 $11,000 $507,250 Funds Available:* $363,100 $391,577 $83,877 $635,243 The project is currently not fully funded. Staff has outlined below, the funding scheme proposed to provide the necessary budget. *General Fund Source Breakdown Project Funding Required: $363,100 Proposed Funding Resources: Higuera Paving $75,000 2005-07 Financial Plan Tight Conduit $30,000 2006-07 Mid-Year Adjustment Pedestrian Lighting $56,000 2007-09 Financial Plan -PROPOSED Higuera Paving $125,000 2007-09 Financial Plan -PROPOSED Estimated Shortfall: $77,100 Use 2007-09 Financial Plan Street Reconstruction Funds Higuera.Street Paving Project Page 5 As noted in the table, much of the funding is anticipated to come from the 2007-09 budget. The project will not award until after the start of the new fiscal year. By the time bids are advertised, the Council will have concluded the budget process and staff will have confirmation of the availability of funds for construction. The Engineer's Estimate for this project is based on the base project only. Additive alternates for work for the Downtown Association, improvements at Broad and Pacific, and inclusion of paving grid on Higuera Street will be evaluated at the time of contract award. If bids are low and all the work can be accomplished within the budget outlined in this staff report, staff will proceed with an award of all alternatives. If not, an analysis will be made of the additional costs versus the benefits expected with an award recommendation to the Council. ALTERNATIVES The 2007-09 Capital Improvement Plan will not be approved prior to the writing of this report. This leaves both the Pedestrian Lighting and the additional funding for paving unconfirmed. If the additional funding is not approved, clearly the project will have to be reduced in size, eliminating the pedestrian light installations and reducing the extent of the paving. ATTACHMENT Location Map AVAILABLE FOR REVIEW IN THE COUNCIL OFFICE Plans and Specifications g.\staff-reports-agendas-minutes\_mr\20071cip\90684 higuem paving\g0664 advertisexoc 1 r•� NT ` P R T \\� ,� o ION ` `� Qpu QQ tQ � XQ DITIV Qo j �,Ir 11 VICINITY MAP i jkl, r Qt o'er , ' HIGUERA STREET PAVING PROJECT MORRO ST. Public Works Department TO NIPOMO ST. SPEC NO. 90684C, f, ,f _ 919 Palm Street, Son Luis Obispo, CA 93401 `7 tfJ