In lieu of levying a tax for the retirement of such bonds any such county may, in its discretion, collect tolls for the use of the bridge or tunnel, and all tolls collected, after payment of the necessary cost of collection and maintenance, shall be paid to the county treasurer, and shall be kept in a separate fund and used solely for paying the principal and interest on the bonds.
KRS 181.040
Recodified 1942 Ky. Acts ch. 208, sec. 1, effective10/1/1942, from Ky. Stat. sec. 938p-3.