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Home My WebLink About01-03-2012 c3 chorro street reconstructioncouncil AcEnbA Repo12t C I T Y OF S A N L U I S O B I S P O FROM: Jay D. Walter, Director of Public Works �w Prepared By: Manny Guzman, Engineer II M -tmg D.� 1 -3 -2012 It- N-1- SUBJECT: CHORRO STREET RECONSTRUCTION MEASURE Y PROJECT, SPECIFICATION NO. 91043 RECOMMENDATIONS 1. Approve plans and specifications for the Chorro Street Reconstruction Project, Specification No. 91043. 2. Authorize staff to advertise for bids and authorize the City Manager to award the contract if the lowest responsible bid for the Chorro Street Reconstruction Project is within the Engineer's Estimate of $300,000. DISCUSSION The City's Pavement Maintenance Plan (PMP) was adopted by 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 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, several projects have been completed that repaired portions of arterial roadways and downtown streets, Broad, Higuera, Osos, Santa Rosa, Foothill, Los Osos Valley Road, and Johnson. This particular project includes the resurfacing of Chorro, from Palm to Higuera. Chorro Street, from Palm to Higuera, is an older street originally constructed of Portland cement concrete. Approximately 35 years ago, the concrete street was overlaid with asphalt concrete in order to provide a smoother pavement surface. This wearing surface has now deteriorated to a condition warranting replacement. Additionally near the intersection of Chorro and Monterey, the road has started to sink causing an uneven roadway surface. This project will remove portions of the roadway and re- compact the existing base in an effort to stabilize the existing road. Additional investigation and stabilization work maybe required once the cause of the roadway settlement has been found. Also included is this project is the upgrading of all ramps between Palm and Higuera to existing Americans with Disability Act (ADA) standards. A total of 10 existing street corners will be retrofitted with new curb ramps or truncated domes to meet current ADA standards. C3 -1 Chorro Street Reconstruction Spec. No. 91043 Paqe 2 Construction Impact Mitigation To minimize the impact of construction to this high pedestrian volume 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 from 7:00 AM to 4:00 PM. The contractor will be allowed to work nine hour days so that the total duration of this project is as short as possible. This approach was approved by the Downtown Association's Economic Activity Committee and these provisions are included in the project's 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 April 2012. CONCURRENCES 1. The Downtown Association's Economic Activity Committee has recommended that start of construction be scheduled for April 9, 2012 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 Street Reconstruction & Resurfacing Account Currently there is $100,074 available in the Street Reconstruction & Resurfacing (R &R) Master Account to support this request. Approximately $162,000 will be transfered to the Street R & R Master Account from the Microsurfacing Summer 2010 project, Spec. No. 90986. Construction has been completed for the Microsurfacing Summer 2010 project and the final report is pending, which will transfer the remaining balance to the Street R &R Master Account. An additional $250,000 will be transferred from the Monterey Street paving project, Specification No. 91008 to this project. The Monterey project has also been completed. Once these transfers have occurred, there will be sufficient funding in the Street R &R account to support this request. The water and sewer utility improvement budget is currently available in the water fund and sewer fund master accounts. This funding supports the adjustment of water and sewer facilities to the new pavement elevations. This funding support will come from the Water Distribution System Improvements Master account and the Collection System Improvements Master account as detailed in the table below. Currently, there is $589,000 available in the Water Distribution System Improvements Master account and $1,415,000 in the Collection System Improvements Master account. Typically projects request a 10% to 15% contingency to cover unanticipated work during construction. A 20% contingency is requested for this project because the cause of the sinking C3 -2 Chorro Street Reconstruction Spec. No. 91043 Page 3 road near the intersection of Chorro and Monterey is still unknown and staff anticipates additional work may be needed to correct underlying issues with the street. This project will be funded 96% through Measure Y Funds. Estimated Project Cost by Funding Source Total for Construction Funds to Be Available: ATTACHMENT Location Map $388,750 $10,000 $1,200 $399,950 $512,074 $589,000 $1,415,000 AVAILABLE FOR REVIEW IN THE COUNCIL OFFICE Plans and Special Provisions T: \Council Agenda Reports \Public Works CAR \2012 \CIP \91043 Chorro St Reconstruction \91043 CAR Advertise.doc C3 -3 (90346) (90227) (90239) Street R &R Water Fund Sewer Fund Total Account Distribution Collections Project Engineer's Estimate: $290,000 $9,000 $1,000 $300,000 Contingencies: $70,000 $1,000 $200 $71,200 Cultural Resources Monitoring: $25,000 $0 $0 $25,000 Material Testing: $3,000 $0 $0 $3,000 Printing: $750 $0 $0 $750 Total for Construction Funds to Be Available: ATTACHMENT Location Map $388,750 $10,000 $1,200 $399,950 $512,074 $589,000 $1,415,000 AVAILABLE FOR REVIEW IN THE COUNCIL OFFICE Plans and Special Provisions T: \Council Agenda Reports \Public Works CAR \2012 \CIP \91043 Chorro St Reconstruction \91043 CAR Advertise.doc C3 -3 MISSION v VENABLE tia CENTER 09 � VIEw ATTACHMENT —11 WILSON ❑ Li GARFIELD a S IRAN w = <-, s °2 ITT- p�� ;;o z 9lT Qp�� VD -� PHILLIPS z �� o PEACH Q�G� v"OF U yA JENNIFER P#' Of LLJ BIANCHI HIGH m 2 �O� RACHELCT. v wUU Ll V1 z Q S DERC K a � LOREN m co cn S = a m BRANCH = Y = ° OUNDHO E 3 ourH SOUTH W s m r cr a o Y g ¢ FUN ON BRIDGE o � o uj CHORRO STREET RECONSTRUCTION 91043