Sec. 4. (a) As used in this chapter, "obstruction" means a condition that:
(1) exists within or near a drain; and
(2) prevents or significantly impedes the flow of water through the drain.
(b) The term includes the following:
(1) The presence of:
(A) one (1) or more objects inside or near a drain;
(B) a quantity of materials inside or near a drain; or
(C) damage to a drain;
that prevents or significantly impedes the flow of water through the drain.
(2) Obstructions that:
(A) are created intentionally; and
(B) occur naturally or are created unintentionally.