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Street Marking Explanations
Access Ramp Installation - When this symbol appears at an instersection, it means a pedestrian access ramp will be constructed at that location. Access Ramp Installation Markings
Asphalt Replacement Markings Asphalt Replacement - The four corners mark the limits of this repair. The symbol in the middle tells the contractor the type of repair. In this case, the letter "R" says that the exsisting asphalt inside the corner markers is too badly damaged to simply overlay. The asphalt must be removed, the material underneath re-compacted and a new asphalt patch installed.
Asphalt Grinding - In this case, the area to be repaired is marked with a "G". This means the exsisting asphalt is to be removed to a specified depth by a pavement grinder (a large piece of equipment with teeth that chew up asphalt and place it directly ina truck to be disposed of). The hole is then filled with new asphalt. Asphalt Grinding Markings
Pavement Fabric Markings Pavement Fabric - The slash, "/" indicates this area is not as badly damaged as an area marked for patching or grinding. It still needs some work before it can be overlayed. The contractor will put down a heavy paving fabric that is used to slow asphalt cracking, provide a moisture barrier and add strength to the pavement.
Concrete Replacement - These symbols appear on damaged curb and gutter, and always appears in pairs. They mark the limits of damaged concrete to be removed and replaced. This work is often done to correct drainage problems and prevent water from seeping under new pavement. In some locations "SUR" has been marked on concrete. This designates that a more detailed survey of the area will be completed before the scope of repairs is determined. Concrete Replacement Markings

Color Codes for Underground Facilities

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