Whenever any county is ineligible for state aid under the provisions of this chapter for a continuous period of four (4) years, then such county shall forfeit and no longer be entitled to any part of the funds in the State Aid Road Fund theretofore allocated to it; and the balance of such funds so theretofore allocated to it shall be reallocated pro rata between all other eligible counties in the same relative proportions as those specified in any law providing state aid road funds.
