§ 330. Ramps in street curbing. No public street, sidewalk adjacent to a curb, sidewalk adjacent to a parking lot, sidewalk adjacent to a private road open to public motor vehicle traffic or highway shall be constructed or reconstructed unless the curbing thereof is designed and constructed so as to allow reasonable access to pedestrian crosswalks for persons with disabilities, in accordance with accessibility guidelines mandated pursuant to the federal Americans with Disabilities Act of 1990, as amended.