§ 273. Official map, changes. Such town board is authorized and
empowered, whenever and as often as it may deem it for the public
interest, to change or add to the official map of the town so as to lay
out new streets, highways, drainage systems or parks, or to widen or
close existing streets, highways, drainage systems or parks within that
part of the town outside the limits of any incorporated city or village.
At least ten days' notice of a public hearing on any proposed action
with reference to any such change in the official map shall be published
in a newspaper of general circulation in such town. Before making any
such addition or change, the town board shall refer the matter to the
planning board for report thereon, but if the planning board shall not
make its report within thirty days of such reference, it shall forfeit
the right further to suspend action. Such additions and changes, when
adopted, shall become a part of the official map of the town, and shall
be deemed to be final and conclusive with respect to the location of the
streets, highways, drainage systems and parks shown thereon. The layout,
widening or closing, or the approval of the layout, widening or closing,
of streets, highways, drainage systems or parks, by the town board, or
the town superintendent of highways, under provisions of law other than
those contained in this article, shall be deemed to be an addition or
change of the official map, and shall be subject to all the provisions
of this article with regard to such additions or changes.