Washington county may become indebted and may issue bonds for the construction or improvement of public roads and bridges in said county in an amount not to exceed the debt limits prescribed for counties by this Constitution. To pay said indebtedness and interest thereon, Washington county may impose and collect an annual road paving fee on all motor vehicle licenses issued in the county. The indebtedness, the bonds and the fee authorized hereby shall be in addition to those authorized by the Constitution of Alabama prior to the adoption of this amendment. But no such additional indebtedness shall be created, and no such additional bonds shall be issued, and no such additional fee shall be levied, until each improvement or construction proposed to be built thereby and its approximate location shall have been determined upon and made public by the Washington county commission, and the proposed increase of indebtedness or issue of bonds or fee therefor shall have been first authorized by a majority vote by ballot of the qualified voters of Washington county voting upon such proposition. Any local, special or general legislation enacted by the legislature to augment or implement the provisions of this amendment need not be advertised as provided in Section 106 or any other provision of this Constitution.