A designated floodway zone is established to preserve a natural channel or open area to meet the need to carry abnormal flows of water in times of flood; to confine periodic floods to reasonable limits; to limit and minimize the structural developments tending to obstruct and divert the natural or directed flow and curb encroachment of floodwaters into the restrictive zone, thus limiting flood heights and flood destruction; and to prevent loss of life and excessive damage to property in the area of greatest flood hazard. The F-1 zone shall be applied to those areas within the City conforming to the definition of the designated floodway as determined by the City Council, based upon studies made by the U.S. Army Corps of Engineers or the Director of Public Works. In the designated floodway zone, the regulations in CVMC 19.50.040 and 19.50.050 shall apply. (Ord. 1281 § 2, 1970; Ord. 1212 § 1, 1969; prior code § 33.525(C)).