If at any stage of development requiring a permit by this ordinance the city engineer determines by inspection that further work as authorized by an existing permit is likely to endanger life, real or personal property or public property, the city engineer may require reasonable safety precautions as a condition of allowing further work to be done. [BC 9.05.140, amended by Ordinance No. 3487, 1/14/86; amended by Ordinance No. 4249, 4/7/03]