Except by special permission from the City Engineer, no trench may be excavated more than 50 feet in advance of the pipe laying nor left unfilled more than 100 feet where the pipe has been laid. The length of the trench that may be opened at any one time must not be greater than the length of pipe and the necessary accessories which are available at the site ready to be put in place. Trenches must be braced and shored according to OSHA, 29 C.F.R. Part 1926, Occupational Safety and Health Standards for Excavations. Bracing, shoring, pipe, or appurtenance materials must not be left in any trench.
('72 Code, § 650:54) (Am. Ord. 1995-779, passed 4-24-95) Penalty, see § 10.99