In all areas of special flood hazards, the following provisions are required:
(1) 
All new construction and substantial improvements shall be anchored to prevent flotation, collapse or lateral movement of the structure;
(2) 
All new construction or substantial improvements shall be constructed by methods and practices that minimize flood damage;
(3) 
All new construction or substantial improvements shall be constructed with materials and utility equipment resistant to flood damage;
(4) 
All new and replacement water supply systems shall be designed to minimize or eliminate infiltration of floodwaters into the system;
(5) 
New and replacement sanitary sewage systems shall be designed to minimize or eliminate infiltration of floodwaters into the system and discharges from the systems into floodwaters; and
(6) 
On-site waste disposal systems shall be located to avoid impairment to them or contamination from them during flooding.
(Ordinance 2-86, sec. 16, adopted 10/21/1986; 1999 Code, sec. 50-101)
In all areas of special flood hazards where base flood elevation data has been provided as set forth in section 3.04.006 or section 3.04.042, the administrator shall obtain, review and reasonably utilize any base flood elevation and floodway data available from a federal, state or other source as criteria for requiring within zone A the following:
(1) 
Residential construction.
New construction and substantial improvement of any residential structure shall have the lowest floor, including basement, elevated to or above the base flood elevation. A registered professional engineer, architect or land surveyor shall submit a certification to the city secretary that the standard of this subsection, as proposed in section 3.04.043(a)(1), is satisfied.
(2) 
Nonresidential construction.
New construction or substantial improvement of any commercial, industrial or other nonresidential structure shall either have the lowest floor, including basement, elevated to the level of the base flood elevation or, together with attendant utility and sanitary facilities, be floodproofed so that below the base flood level the structure is watertight with walls substantially impermeable to the passage of water and with structural components having the capability of resisting hydrostatic and hydrodynamic loads and effects of buoyancy. A registered professional engineer or architect shall submit a certification to the city secretary that the standards of this subsection, as proposed in section 3.04.043(a)(3), are satisfied.
(3) 
Mechanical and utility equipment for residential and nonresidential construction.
Electrical, heating, ventilation, plumbing and air conditioning equipment and other service facilities shall be designed and/or located so as to prevent water from entering or accumulating within the components during conditions of flooding.
(4) 
Manufactured homes.
(A) 
No manufactured home shall be placed in a floodway, except in an existing manufactured home park or existing manufactured home subdivision.
(B) 
All manufactured homes shall be anchored to resist flotation, collapse or lateral movement. Specific requirements shall be:
(i) 
Over-the-top ties at each of the four corners of the manufactured home, with two additional ties per side at intermediate locations and manufactured homes less than 50 feet long requiring one additional tie per side.
(ii) 
Frame ties at each corner of the home, with five additional ties per side at intermediate points and manufactured homes less than 50 feet long requiring four additional ties per side.
(iii) 
All components of the anchoring system be capable of carrying a force of 4,800 pounds.
(iv) 
Any additions to the manufactured home be similarly anchored.
(v) 
For the purposes of this requirement, manufactured homes must also be elevated and anchored to resist flotation, collapse or lateral movement. This requirement is in addition to applicable state and local anchoring requirements for resisting wind forces.
(Ordinance 2-86, sec. 17, adopted 10/21/1986; 1999 Code, sec. 50-102)
(a) 
All subdivision proposals shall be consistent with sections 3.04.001, 3.04.002 and 3.04.003.
(b) 
All proposals for the development of subdivisions shall meet the development permit requirements of sections 3.04.007 and 3.04.043 and the provisions of section 3.04.071, section 3.04.072 and this section.
(c) 
Base flood elevation data shall be provided for subdivision proposals and other proposed development which is greater than the lesser of 50 lots or five acres, if not otherwise provided pursuant to section 3.04.006 or section 3.04.042.
(d) 
All subdivision proposals shall have adequate drainage provided to reduce exposure to flood hazards.
(e) 
All subdivision proposals shall have public utilities and facilities such as sewer, gas, electrical and water systems located and constructed to minimize flood damage.
(Ordinance 2-86, sec. 18, adopted 10/21/1986; 1999 Code, sec. 50-103)