Making holes and causing obstruction

(1) No person shall make a hole or cause any obstruction in any street unless he previously obtains the permission of the Commissioner and complies with such conditions as he may impose.

1. (2) When such permission is granted, such person shall, at his own expense, cause such hole or obstruction to be sufficiently fenced and enclosed, until the hole or obstruction is filled up or removed and shall cause the hole or obstruction to be sufficiently lighted during the night.
2. (3) If any obstruction is caused in any street by the fall of structures, trees, or fences, the owner or occupier of the premises concerned shall, within twelve hours of the occurrence of such fall or within such further period as the