When an excavation is planned to be made in an improved street, such excavation shall be accomplished only by boring or tunnelling under such street where feasible or practicable. The Director of Public Works shall make the determination of feasibility or practicality before a permit is issued.
('68 Code, § 25-45) (Ord. 5-1979-26, passed 5-8-79) Penalty, see § 99.99