6-1-13: MAINTENANCE AND CONSTRUCTION ZONES:
   A.   Authority To Close Streets: City personnel or contractors, while repairing or improving the streets of the city, utility personnel and utility companies, when installing, improving or repairing lines or other utility facilities in the streets, are hereby authorized as necessary, subject to control by the mayor, to close any street, or section thereof, to traffic during such repair, maintenance or construction; and in exercising such authority, shall erect, or cause to be erected, proper control devices and barricades to warn and notify the public that said street has been closed to traffic. (1985 Code ch. 20 § 2-10; amd. 2016 Code)
   B.   Driving Restrictions: When any street has been closed to traffic under the provisions of subsection A of this section and traffic control devices or barricades have been erected, it shall be unlawful around such traffic control devices or barricades, or otherwise to enter said closed area; except that the provisions of this subsection shall not apply to persons while engaged in such construction, maintenance and repair, or to persons entering therein for the protection of lives or property; provided, that persons having their places of residence or places of business within such closed areas may travel, when possible to do so, through such area at their own risk.
   C.   Construction Under Traffic: Whenever construction, repair, or maintenance of any street or utility line or facility is being performed under traffic, the city department head, contractor or utility company concerned shall erect, or cause to be erected, traffic control devices to warn and guide the public; and every person using such street shall obey all signs, signals, markings, flagmen or other traffic control devices which are placed to regulate, control and guide traffic through the construction or maintenance area. (1985 Code ch. 20 § 2-10)