Expansion joints of the thickness specified below shall consist of a premolded filler strip with the top strip placed one-fourth (1/4) inch below the surface of the sidewalk or driveway apron.
Expansion joints one-half (1/2) inches thick shall be placed between sidewalks and all structures which extend through sidewalks, such as light standards, traffic light standards, and traffic poles. One-half (1/2) inch thick expansion joints shall also be provided at the junction of the driveway apron and the sidewalk and at the junction of the driveway apron and the curb.