STREET GRADES (10-4-180 et seq.)

Municipal Code of Chicago tit. 10, ch. 10-4, art. IV

in effect

Municipal Code of Chicago § 10-4-180 Grades established.

10-4-180 Grades established. Street grades shall be established along the curblines of the streets and shall run in a straight line from the established grade at any street intersection to the established grade at the intersection of the next street thereto, or to any established street grade between the intersections of such streets. The term "intersection of streets" shall be taken as the intersection of curblines and curblines produced at all intersecting and abutting streets. All ordinances fixing the grades of streets in the city shall be referred to the commissioner of water management, and shall be passed by the city council only upon the recommendation of said commissioner. (Prior code § 30-18; Amend Coun. J. 11-8-12, p. 38872, § 180)

Municipal Code of Chicago § 10-4-190 Public works and public improvements.

10-4-190 Public works and public improvements. All public works and public improvements shall be constructed in conformity with the street grade elevations established by the city council. (Prior code § 30-19)

Municipal Code of Chicago § 10-4-200 Unpaved alleys.

10-4-200 Unpaved alleys. The grades of the sidelines of each unpaved alley in the city at its intersection with streets shall conform to the sidewalk grades of said streets, respectively, and from said intersections shall rise at the rate of six inches in each 100 feet to meet at a summit. (Prior code § 30-20)

Municipal Code of Chicago § 10-4-210 City datum.

10-4-210 City datum. The city datum is hereby established as a plane 17.640 feet below the bench mark cut on top of the bottom stone of granite base at the southeast corner of the Northern Trust Company Bank Building at the northwest corner of S. La Salle Street and W. Monroe Street. (Prior code § 30-21)

Municipal Code of Chicago § 10-4-220 Defacement of bench monuments.

10-4-220 Defacement of bench monuments. It shall be unlawful for any person to cover up, conceal, deface, obliterate, or in any manner to injure, erase, disfigure or change, the location of any of the standard bench monuments which have heretofore been established or which may hereafter be established by the city. Any person who shall violate any of the provisions of this section shall be fined not less than $100.00 nor more than $1,000.00 for each offense. (Prior code § 30-22)

Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2649971Fetched: 10/24/2026