(a) Any person by whom or under whose immediate direction or by whose immediate authority as principal or as contractor or employer any portion of a public street may be made dangerous shall:
(1) Erect and, so long as the danger continues, maintain, around the portion of the street or highway so made dangerous, a good and substantial barrier;
(2) Cause to be maintained during every night from sunset to sunrise sufficient lights, torches or flashers plainly visible from a distance of five hundred feet on that portion of the street or crossing so made dangerous.
(Ord. 1714 (part), 1956: prior code § 19.39)