7-1-7: DRAINAGE OBSTRUCTION:
It is unlawful for any person, firm or corporation to obstruct any street, sidewalk, or alley by placing any approach driveway or other obstruction or substance whatever that will obstruct or prevent the natural flow of water into the storm sewers or drains, or dam the same so as to back any water upon the streets, alleys, sidewalks, or gutter. (1990 Code § 14-109)