No development, storage of materials or equipment, or other uses shall be permitted which, acting alone or in combination with existing or future uses, create a danger or hazard to life or property. Development in the floodway fringe shall:
(1) Conform to adopted city land use plans for the design of public and private development in the floodplain.
(2) Not result in damage to public facilities as a result of erosion or flooding events.
(3) Not generate adverse impacts, including but not limited to erosion, upstream or downstream.
(4) Not unnecessarily alter riparian habitats of watercourse and adjacent bank areas.
(5) Not increase the base flood elevation more than one-tenth of a foot, as measured from the property boundary.
(6) Not result in higher floodwater velocities which significantly increase the potential for flood or erosion damage.
(7) Not significantly increase channel or bank erosion.
(8) Use, where appropriate, native and/or adaptive landscaping to enhance the open space character of the floodway fringe.
(9) Place the lowest (including basement) floor one (1) foot above the base flood elevation. In an AO Zone, residential construction, new or substantial damage repairs or improvements, shall have the lowest floor, including basement, elevated to or above the regulatory flood elevation. Prior to the pouring of the first slab or lowest floor installation and prior to any framing, the applicant shall submit to the city engineer certification by state-registered land surveyor or a state-registered professional civil engineer that the elevation of the lowest floor framework is in compliance with that approved by the city engineer's office in the form prepared by FEMA (Elevation Certificate) for preslab (Building Under Construction) and final (Finished Construction).
(10) Anchor all structures, material or equipment firmly to prevent their flotation.
(11) Place service equipment and mechanical items, including but not limited to water heaters, heating/cooling equipment, ductwork, electrical service panels and/or other facilities, as deemed necessary by the floodplain administrator or designee, at or above the regulatory flood elevation.
(12) ) Be constructed so as to protect placed fill from erosion which could be caused by waters, or otherwise. Such fill shall be permitted only when demonstrated by the owner/developer that it will have some beneficial purpose, as determined by the city engineer, and the amount of proposed fill is not in excess of what is necessary to achieve that purpose. The fill shall be protected from erosion which could be accomplished by placing riprap, vegetative cover, bulk heading, or any other floodplain administrator approved methods. Certification of compaction shall be provided as determined by the floodplain administrator.
(13) Prohibit storage and/or processing of materials that are buoyant, flammable, explosive or that could be injurious to human, animal or plant life at the time of flooding.
(14) Locate on-site sanitary waste disposal systems to avoid impairment to them or contamination from them during flooding.
(15) Locate water supply, water treatment and sewage collection and disposal systems to eliminate or minimize infiltration of floodwaters into these systems and discharge of materials from these systems into floodwaters.
(Ord. No. 7407, § 5, 6-25-90; Ord. No. 10311, § 1, 8-8-06; Ord. No. 11396, § 1, 8-9-16; Ord. No. 11801, § 1, 12-8-20)