Whenever, upon the completion of a project on a class I, II, or III highway in any city or town, the joint fund has not been expended in full, the unexpended balance shall revert to the state and city or town in the same proportion as each contributed.
RSA 235:20
1945, 188:1, part 12:11. 1950, 5:1, part 9:1, par. 2. RSA 240:11. 1981, 87:1. 1985, 402:6, I(b)(6). 1988, 245:8, eff. June 29, 1988.