ITB-RH-09-038 - ”2009” Asphalt Road Rehabilitation Program

Summary of Specifications:
Dorset Rehabilitation The typical existing road cross section consist of approximately 10” of HMA pavement with concrete curb & gutter placed over existing subgrade. The replacement pavement section consists of 2-1/2” HMA, 13A over 2-1/2” HMA, 3C over a reconditioned base consisting of pulverized HMA materials. (See Appendix C for Geotechnical Reports and Appendix B for proposed pavement cross-section) The Scope of Work includes: drainage structure adjust/recondition/reconstruct; selective installation of edge drains; HMA pavement pulverization; reconditioning of pulverized HMA materials; placement of 5” HMA; selective concrete curb & gutter removal and replacement; construction of ADA compliant pathway-sidewalk ramps; restoration; and other miscellaneous items of work. (See Appendix C for Geotechnical Reports and Appendix B for proposed pavement cross-section). Hampton Boulevard Rehabilitation The typical existing road cross section consist of approximately 5” to 5-1/2” of HMA pavement with concrete curb & gutter placed over existing subgrade. The replacement pavement section consists of 2-1/2” HMA, 13A over 2-1/2” HMA, 3C over 8” 21AA aggregate base (crushed limestone) over 12” crushed concrete aggregate (1”x3”). The Scope of Work includes: drainage structure adjust/recondition/reconstruct; selective installation of edge drains; HMA pavement removal (milling); placement of 5” HMA; placement of aggregate base materials; selective concrete curb & gutter removal and replacement; selective subgrade undercutting as directed-by-engineer; construction of ADA compliant pathway-sidewalk ramps; restoration; and other miscellaneous items of work. (See Appendix C for Geotechnical Reports and Appendix B for proposed pavement cross-section). Subdivision Speed Hump Installation – Hawthorn and Arcadia Park Subdivisions The typical existing road cross section consists of approximately 7” to 8” concrete pavement with integral concrete curb & gutter placed over existing subgrade. In areas where concrete slabs are being remove and replaced, the replacement pavement section consists of 8” concrete pavement (non-reinforced); over 6” 21AA aggregate base. The Scope of Work includes milling existing concrete pavement to accommodate HMA speed hump per City Standard Detail located in Appendix B; concrete pavement removal and replacement; construction of ADA compliant pathway-sidewalk ramp; installation of chevron pavement markings for speed humps; restoration; and other miscellaneous items of work Project area maps for the above locations are in Appendix A.