It shall be the duty of the Manager or other Township
to give 10 days' notice in writing to all persons who have trees or
bushes in front of their property overhanging the improved portion
of any street, alley or sidewalk, or to any person who acts as agent
or representative therefor, to trim the trees or bushes in front of
their respective properties in accordance with the provisions of this
article, or to remove trees or bushes within said street or alley
rights-of-way, constituting a safety hazard. Trees or bushes within
Township streets or rights-of-way which constitute a safety hazard
shall be removed upon 10 days' notice to the owner or his agent or
representative.