In all areas of special flood hazard, the following provisions are required:
(A) All new construction and substantial improvements shall be anchored to prevent flotation, collapse or lateral movement of the structure;
(B) Manufactured homes shall be anchored to prevent flotation, collapse or lateral movement. Methods of anchoring may include but are not limited to the use of over-the-top or frame ties to ground anchors. This standard shall be in addition to and consistent with applicable state requirements for resisting wind forces;
(C) All new construction and substantial improvements shall be constructed with materials and utility equipment resistant to flood damage;
(D) All new construction or substantial improvements shall be constructed by methods and practices that minimize flood damage;
(E) Electrical, heating, ventilation, plumbing, air-conditioning equipment and other service facilities shall be designed, constructed, installed and/or located at least one foot above the flood protection elevation. These include but are not limited to HVAC equipment, water softener units, bath/kitchen fixtures, electric meter panels/boxes, utility/cable boxes, appliances (i.e., washers, dryers, refrigerator and the like), hot water heaters, electric wiring and outlets/switches;
(F) New and replacement sanitary sewage systems shall be designed to minimize or eliminate the infiltration of flood waters into the system and discharges from the systems into flood waters;
(G) On-site waste disposal systems shall be located and constructed to avoid impairment to them or contamination from them during flooding;
(H) Any alteration, repair, reconstruction or improvements to a structure, which is in compliance with the provisions of this chapter, shall meet the requirements of new construction as contained in this chapter;
(I) Construction of new solid waste disposal facilities, hazardous waste management facilities, salvage yards and chemical storage facilities shall not be permitted, except by variance, in areas of special flood hazard. A structure or tank for chemical or fuel storage incidental to an allowed use or to the operation of a water treatment plant or wastewater treatment facility may be located in an area of special flood hazard only if the structure or tank is either elevated above base flood elevation or designed to be watertight with walls substantially impermeable to the passage of water and with structural components capable of resisting hydrostatic and hydrodynamic loads and the effects of buoyancy.
(J) Any new critical facility must be located outside of the 500-year (0.2%) flood fringe area and elevated at least one foot above the 500-year (0.2%) base flood elevation or the community base flood elevation, whichever is greater. The determination of this flood fringe area and elevation will be provided by the Floodplain Administrator.
(K) For the purpose of determining substantial improvement, the Floodplain Administrator shall make a determination of the total cost of repairs as it relates to a substantial improvement, including a determination of whether a series of repairs, reconstructions or improvements constitute one single alteration such that the total cost of the repairs, reconstructions or improvements will be the cumulative cost from the first alteration.
(L) All development proposals submitted for review and approval in accordance with the Subdivision Ordinance of the town shall also comply with the following provisions:
(1) Locate and construct public utilities and facilities, such as sewer, gas, electrical and water systems, to minimize flood damage;
(2) Construct all new streets located in a community special flood hazard area in accordance with the applicable provisions of the subdivision ordinance;
(3) Design and construct adequate drainage to reduce exposure to flood hazards; and
(4) Take any other appropriate measures needed to minimize flood damage.
(M) When a structure is partially located in a community or FEMA special flood hazard area, the entire structure shall meet the requirements for new construction and substantial improvements.
(N) When a structure is located in multiple flood hazard zones or in a flood hazard risk zone with multiple base flood elevations, the provisions for the more restrictive flood hazard risk zone and the highest base flood elevation shall apply.
(1995 Code, § 26-66) (Ord. 2009-03, passed 2-10-2009; Ord. 2013-02, passed 3-12-2013; Ord. 2014-00, passed 2-11-2014)