The purpose of this project is to preserve and extend the service life of the existing pavement, to replace sign panels for better visibility, install count stations to better monitor traffic, and improve ADA access at intersections.
This project is needed because the pavement condition within the project limits is exhibiting deterioration. If left untreated, deterioration will continue and result in increasingly higher maintenance costs in the future. Traffic operations has identified the replacements of 33 overhead sign panels that are in poor condition and need to be upgraded to current standards. The District Electrical Department recommends the installation of new traffic census stations. Additionally, curb ramps in the project limits that do not meet current ADA accessibility standards will be replaced.
The proposed Paso Robles 46 CAPM project would rehabilitate approximately 8.9 lane miles of existing pavement along State Route (SR) 46 in San Luis Obispo County. The project limits begin 300 feet west of postmile (PM) 29.8 (includes the intersection of SR-101 southbound ramp node with SR-46) and end at PM 32.2. The project includes: preservation of 8.9 lane miles of pavement by applying 0.15-foot overlay of rubberized hot mix asphalt (RHMA) with cold-planing of some segments, replacing shoulder backing, upgrading 2,400 linear feet of guardrails, installing traffic census stations, replacing ramp loops, replacing 33 sign panels, and upgrading ADA features at the intersection of Golden Hills Road and Buena Vista intersections. The ADA ramp reconstruction and new sidewalk at Golden Hill Road intersection will require push button modifications, relocation of signal poles and utility relocation. Drainage improvements include installation of a new pavement underdrain west of Airport Road, high side super-gutter modifications along the westbound lane east of the bridge at PM 30.0, and replacement of dikes along the project corridor.
All work will be conducted within existing Caltrans right of way. All work will take place on the pavement and shoulder where previous soil disturbance has taken place.