Agenda - Council - 02/13/2007 - Laserfiche WebLink

Home

The streets scheduled for maintenance are illustrated in the Appendix C, the Preliminary Assessment Role. This appendix also contains a listing of the parcels receiving benefit. All streets proposed for the program have received a preliminary survey by the City Engineer and Public Works Supervisor. A post winter survey will be conducted prior to awarding bids in May. Appropriate project adjustments will be made if any of the scheduled projects are deemed to be inappropriate for sealcoating due to advanced deterioration. PROJECT QUANTITIES AND COSTS Table 1 includes a listing of street lengths and pavement areas for each crack seal/sealcoat project. Estimates -are also provided for crack filling material application rates. Table 2 contains the estimated construction costs for each of these sealcoat projects. Both the sealcoating and crack filling operation will be applied by a contractor selected through the competitive bidding process. Previous program project costs along with the estimated 2007 unit prices for sealcoating and crack filling are shown below which represents an increase of 15% over the bid prices received for sealcoating and cracksealing in 2006.: Material Material Construction Bituminous overlay projects consist of applying one and one -half inch bituminous overlays onto the existing pavement. Tables 3 and 4 present summaries of the project. quantities and construction costs, respectively. Prior to the overlay, failed areas will be removed and patched by the City's Public Works Department. The number of tons required for street patching is estimated on an individual project basis. The rate charged for patching will be $200 per ton of bituminous material which includes material and labor. The existing pavement will be tack coated.and a machine laid one and one -half inch overlay will be placed by a contractor selected through the competitive bidding process. Existing bituminous driveways will be feathered to match the new pavement. Existing concrete driveways will have the adjoining street milled to form a neat joint with the newly overlaid pavement. On streets without curbs, the edge of the overlay street will be shouldered to eliminate the drop off at the pavement edge formed by the overlay. The shouldering will be done a class 2 shouldering aggregate. Previous years low bid and estimated 2007 unit prices for overlays are shown below. Year Bit Overlay Crack Year Sealcoat Fill Project Cost $3.34 $ /SgYd $ /Lb $ /SgYd 2003 $0.63 $1.00 $0.70 2004 $0.49 $1.02 $0.74 2005 $0.54 $1.28 $0.73 2006 $0.63 $1.30 $0.76 2007 est. $0.72 $1.50 $0.87 Bituminous overlay projects consist of applying one and one -half inch bituminous overlays onto the existing pavement. Tables 3 and 4 present summaries of the project. quantities and construction costs, respectively. Prior to the overlay, failed areas will be removed and patched by the City's Public Works Department. The number of tons required for street patching is estimated on an individual project basis. The rate charged for patching will be $200 per ton of bituminous material which includes material and labor. The existing pavement will be tack coated.and a machine laid one and one -half inch overlay will be placed by a contractor selected through the competitive bidding process. Existing bituminous driveways will be feathered to match the new pavement. Existing concrete driveways will have the adjoining street milled to form a neat joint with the newly overlaid pavement. On streets without curbs, the edge of the overlay street will be shouldered to eliminate the drop off at the pavement edge formed by the overlay. The shouldering will be done a class 2 shouldering aggregate. Previous years low bid and estimated 2007 unit prices for overlays are shown below. Year Bit Overlay Project Cost $ /Ton $ /SgYd 2003 $27.00 $3.34 2004 $28.03 $2.67 2005 $29.19 $3.46 2006 $47.23 $4.25 2007 est. $59.04 $5.31 • 1�1 Ina