The county government shall promptly deposit all funds received from the receiver of taxes and county treasurer from the collection of the special assessment or levy in a special sinking fund account, which shall be used for no other purpose than the retiring of the bonds and interest accruing thereon.

48 Del. Laws, c. 331, § ?26; 9 Del. C. 1953, § ?578; 55 Del. Laws, c. 85, § ?4A;