9234.2. - Preservation of natural drainage courses.

No substantial development shall occur which results in the substantial alteration of any known drainage course. The following shall apply to all property in the RL land use district, which contains established drainage courses:

A.

No development shall result in the alteration of a known drainage course, except when it can be proved that said development will correct conditions which are hazardous to the public health and safety;

B.

No structures or parts of structures shall overhang, project, or protrude into any known drainage course;

C.

Fences and other structures, culverts and bridges, which must be constructed within drainage courses, shall be designed to the requirements of the city so as to prevent an obstruction or division of drainage flow and to minimize adverse effects to natural riparian vegetation and ecosystems;

D.

Any fill of designated drainage courses shall be limited to the amount necessary to resolve health or safety hazards;

E.

All development shall, to the extent possible, enhance the natural amenities of a known drainage course;

F.

No development shall occur without adequate provision for the maintenance of known drainage courses.