§ 239. Joint liabilities of towns and their joint contracts. Whenever
any two or more towns shall be liable to make or maintain any bridge or
bridges, the same shall be built and maintained at the joint expense of
such towns, without reference to town lines, except where the board of
supervisors has otherwise apportioned such expense as provided in
section two hundred and seventy-four. The town superintendents of all
the towns, or of one or more of such towns, the others refusing to act,
may, when directed by their respective town boards, enter into a joint
contract for making and repairing such bridges.