(A) Whenever any resolution of the city or determination of the City Traffic Engineer designates and describes any street, or portion thereof, as a street the use of which is prohibited by any commercial vehicle, the City Traffic Engineer shall erect and maintain appropriate signs on those streets affected by such resolution.
(B) Those streets and parts of streets established by resolution of the Council are hereby declared to be streets the use of which is prohibited by any commercial vehicle. The provisions of this section shall not apply to passenger buses under the juris-diction of the Public Utilities Commission of the state.
(C) Whenever it is determined by the City Traffic Engineer that any street, or portion thereof, is unsafe, either by virtue of grade, width, or terrain, for the passage of vehicles with a gross weight of three tons or more, the City Traffic Engineer is hereby authorized to erect appropriate signs, and all such vehicles shall be prohibited. The Traffic Engineer is also authorized to erect such signs when the structural section of any street, or portion thereof, is unsuitable for the passage of vehicles with a gross weight of three tons or more.
('66 Code, § 4-5.1404) (Ord. 317-C-S, passed 6-10-76; Am. Ord. 765-C-S, passed 12-28-89) Penalty, see § 4-5.1601