Curbs shall be constructed of Class C concrete 4,000 PSI air entrained in accordance with New Jersey State Highway Department Standard Specifications for Road and Bridge Construction 1961 and addenda. They shall be constructed to approved line and grade and on approved (prepared) subgrade. They shall have a top dimension of six inches, a total depth of 20 inches, a bottom dimension of eight inches and be constructed to have a face of curb from pavement to top of curb of eight inches. All edging shall have a minimum of one-inch radius. Bituminous fiber expansion joints one-half inch thick shall be provided at intervals of 20 feet. Full cut joints shall be provided at equal spaces between expansion joints. Curb cuts and other accessibility features must be provided as per ADA.