§ 49. Improvement of state highways at expense of county or at the
joint expense of such county and any city, village or town. The board of
supervisors of any county may request of the department an estimate of
the additional cost of improving a state highway to a width or in a
manner, or both, as desired by such board. The department shall as soon
as practicable make an estimate of such additional cost and transmit the
same to the board of supervisors, and the board of supervisors may
thereupon by resolution petition the commissioner of transportation to
provide the width and type of improvement desired. The expense caused by
the increased width or the type of improvement, or both, shall be borne
wholly by the county, or, in the discretion of the board of supervisors
of any county, and with the consent of the appropriate board of any
city, village or town in which the road is located, the expenses may be
apportioned between such county and such other municipality or
municipalities, in such proportion as may be agreed to. Whenever plans
and specifications have been approved providing for such increased width
or such type of improvement, or both, an estimate of the cost of such
increased width or type of improvement, or both, shall be submitted to
the board of supervisors, which, if it approve such plans,
specifications and estimate of cost, shall, by resolution, duly adopted
by a vote of a majority of all of the members of such board, appropriate
the funds necessary to provide therefor; and such funds shall be made
available for the commissioner of transportation in the manner provided
in this article.