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Home My WebLink About05/06/2008, C6 - MICROSURFACING 2007-08 PROJECT, SPECIFICATION NO. 90809 CounC1t M i.°.May6,2008 A] acEnba uEpont '�"..6. coo CITY OF SAN L U 15 OBISPO FROM: Jay D. Walter, Public Works Director._1{ 3 Prepared by: Manuel Guzman,Engmee I SUBJECT: MICROSURFACING 2007-08 PROJECT, SPECIFICATION NO..90809 CAO RECOMMENDATION: 1. Approve Plans and Special Provisions for the Microsurfacing 2007-08 Project, Specification No. 90809. 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$653,000. 3. Approve the transfer of$98,000 from CIP reserve to fund construction management. DISCUSSION Background 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. With the budget cutbacks of the past few years, the above-mentioned pavement area rotation schedule was put on hold in 2005. With the passage of Measure Y in November 2006, staff has prepared this project along with the Street Reconstruction project forbid this summer in response to City Council and resident's priorities for some of the additional revenues. The objective of this project is to apply a pavement microsurfacing to all those streets in Pavement Area 1 that will not be reconstructed or receive an overlay this year as part of the Street Reconstruction project. In the past, slurry seal has been used by the City in maintaining streets, and has found to be an effective approach in pavement preservation. This project will use microsurfacing, a product very similar to slurry seal. One big difference between microsurfacing and slurry seal is the required curing time. Microsurfacing is a polymer modified cold-mix paving system that uses a quick set emulsion and can be ready to support traffic much faster than a typical slurry seal. In anticipation of this microsurfacing project, the City's Street Maintenance Staff have performed isolated pavement repairs and crack sealing on the streets included within the scope of this project. This preparatory work is now complete and will increase the long-term .effectiveness of the microsurfacing application. This project also includes the upgrading of three catch basins to the current City standards. Two of these catch basins are at the intersection of California and Monterey, and the third is near the O'co -- Council Agenda Report—2008 Micro-surfacing Project,Specification No.90809 Page 2 intersection of California and San Luis Drive. All three catch basins will be sized appropriately for current drainage requirements and will reduce roadway obstacles to the bicycling community. Also included with this project is the installation of new sidewalk in front of 1831 Fixlini. Currently a gap exists between two existing sections of sidewalks. The elimination of this gap and the connection of the existing sidewalks will allow safer and more convenient pedestrian access. Construction Contract Management& Inspection Consistent with the strategy approved by the Council during the 2007-08 mid-year budget review, we recommend contracting for the construction management for this project. As discussed with the Council, and largely due to the implementation of Measure Y priorities, the quantity of scheduled CIP projects in the 2007-09 Financial Plan has increased almost two-fold from previous years. The 2007-09 Financial Plan addressed this increased workload by providing additional funding for contract design and contract management resources. While the amount funded for contract design is adequate, the mid-year budget revealed an underestimation in the amount needed for contract inspection. Accordingly, the Council adopted a two-prong strategy in responding to the need for additional construction management: adding a contract employee for the balance of 2007-09 and assessing the need for supplemental funding for consultant construction management on a case-by-case basis as projects are brought forward for approval of plans and specifications. Based on current City inspection staff workload and the suitability of this project for contracted construction management, staff is recommending transferring $98,000 from the CIP reserve account for this purpose. This amount is based on current market rates for contract construction management at 15%of total project construction costs. CONCURRENCES A Notice of Exemption has been filed through the Community Development Department. FISCAL IMPACT The 2.007-09 Financial Plan identifies $1,814,000 to support all of the 2007-08 Street Reconstruction, Resurfacing and Resealing projects, $25,000 for New Sidewalk Installations, and $25,000 for the Minor Stonn Drain Facilities project. An additional $10,000is also available from the Bicycle Facility Improvements project to fund this project. Construction management will cost an additional $98,000. Staff is recommending that this work be funded out of the CIP reserve account, which currently contains a balance of$816,000. 1 J /1 roa Council Agenda Report-2008 Microsurfacing Project,Specification No.90809 Page 3 Estimated Project Cost Construction: $653,000 Construction Contingencies: $69,500 Construction Management: $98,000 Materials Testing: $1,500 Printing: $1,000 Total Cost of Project $823,000 Estimated Project Cost by Funding Sources Street Reconstruction Bicycle & Resurfacing CIP New Facility Account Reserve Sidewalk Improv. Stone Drain Total Engineer's Estimate: $599,500 $98,000 $22,000 $10,000 $21,500 $751,000 Contingencies: $63,000 $3,000 $3,500 $69,500 Material Testing: $1,500 $1,500 Printing: $1,000 $1,000 Total for Construction: $665,000 $98,000 $25,000 $25,000 $823,000 Funds Available: ** $639,000 $816,000 $259000 $25,000 $25,000 ** There is currently $1,370,000 in the Street Reconstruction and Resurfacing Account; however an estimated $731,000 will be used for.the Street Reconstruction Project, leaving an estimated $639,000 available to support this project. The exact funds available for this project depend upon the bid prices for the Street Reconstruction project. If additional funds are needed for this project due to high bids on the Street Reconstruction project, staff is recommending using funds from year two of the Street Reconstruction and Resurfacing Account to support this project. A budget transfer of the bid amount plus contingency and testing money will be processed after the bid opening. This will create a project budget specific to this Microsurfacing project. ATTACHMENT Location Map AVAILABLE FOR REVIEW IN THE COUNCIL OFFICE Plans and Specifications G:)Sm f-Reports-Agendas-Minutesl_CARV.008\CIM90809 Micr=fw-ing 2007-08\90809-Mi=wrfacing 2007-08 dm tlio -3 FfRNaVD£Z ��- � SERRANO p\SS\,N CIR. N OVOaB BROAD (/S 1�\\ pyp�� a BENTON ORRO l� o d� BR� , , ZIp O v o �o 7d� O o <7s Gl CASA o O� so�O yo Od SpS liG Si t ,O 0 � o O � m ENNER O yz O n E c O � LLEN � opo o O S HATHWAY � O g OO � 0 S� oai Od OtaOd A 01 avMOH y� vvi n O � oQti �� A <l a0 � yy O a J� RAOp� Spy O GROVE UR io EL c^ FY 0 ! a PIP, �2f odd s coN !/Jo ��\p1\tr \\ ►� �T `� A o ,P CITY LIMITS ti ti r Z mC / A i n O D n Z Z ti n a c z Z rc LUIS OBlspO y of 2007-08 STREET RECONSTRUCTION & sanPublic Works Department SLURRY SEAL PROJECTS 919 Palm Street, Son Luis Obispo, CA 93402 (Paving Area 1)