(a) Every person who makes a cut in or alters the surface or subsurface of any street or alley shall place substantial warning devices on the street or alley which is being cut. The warning devices shall be plainly visible from all directions both day and night.
(b) Every person, other than a duly authorized employee of the city, who makes a cut or alteration in any street or alley, or who engages in any other work which hinders traffic movement, shall place proper barricades around such work and also place clearly marked signs giving the name of the person under whose authority the work is being done.
(Prior Code, § 17-21; Ord. of 8-25-1959)