Place compacted AB-3 Base and PCCP Surfacing: Place compacted AB-3 Base at optimum moisture, uniformly at specified areas. Material shall be placed to a density not less than ninety-five percent (95%) of standard density at optimum moisture. Maximum compacted thickness shall not exceed six inches. 2.2 Sidewalks, sidewalk ramps, curb and gutter: The areas to be replaced shall be designated by the City. Replacement of sidewalk, sidewalk ramp, and curb and gutter areas shall consist of the following: 1. Saw cut areas to be patched full depth and to neat lines. 2. Excavate the existing l material to a depth of: A) 6 inches below subgrade for sidewalk and ramps B) 12 inches below finished grade and remove from site to an approved disposal site. 3. Place Compacted AB-3 material with optimum moisture to a full depth below finished grade and to the required density.(6 inches below sidewalks, 12 inches below curb and gutter) 4. Place Concrete with a minimum of 5000 psi strength and protect from freezing or high temp. depending upon time of year. 5. A broom finish must be obtained as a final product with no more than a 1% cross slope on sidewalk and sidewalk ramps. Widths and running slope of sidewalk and ramps shall meet all ADA and PROWAG requirements. 6. A Mix design of the Concrete shall be submitted prior to placement a minimum of 10 days prior to placement and a location of the AB-3 material shall be submitted 10 days prior to excavation of the selected sites for approval of the Engineer 7. Before excavation of the selected sites, the Contractor shall verify the dimensions specified on the attached documents and if any variation is found, the contractor must obtain prior approval from the City prior to any work being performed in that area or the excess area and cost will be on the Contractor. 2.3 Pavement Patching: The areas to be patched have been previously excavated and backfilled by the City of Independence Public Works Department. These areas may include water line repairs, sanitary sewer main repairs, storm sewer repairs or failed pavement that has been removed and backfilled with gravel and or other material. Pavement Repair: Repair of the designated roadway areas shall consist of the following: 1. Saw cut areas to be patched full depth and to neat lines. 2. Excavate the existing backfill material to a depth of 18 inches below finished grade and remove from site to an approved disposal site. 3. Place Compacted AB-3 material with optimum moisture to a depth of 12 inches below finished grade and to the required density...
