§ 152.26, § 152.27

Other

• Anchoring required

  New construction and substantial improvements shall be anchored to prevent flotation, collapse or lateral movement.

• Alterations to compliant buildings

  Any alteration, repair, reconstruction or improvements to a building that is in compliance with the provisions of this chapter shall meet the requirements of 'new construction' as contained in this chapter.

• Enclosed area use restriction

  Enclosed areas of new construction or substantially improved structures which are below the regulatory flood protection elevation shall not be designed or used for human habitation, but shall only be used for parking of vehicles, building access or limited storage of maintenance equipment used in connection with the premises.

• Maintain flood-carrying capacity

  The flood-carrying capacity within an altered or relocated portion of any watercourse shall be maintained.

• Flood-resistant construction below BFE

  The interior portion of such enclosed area shall not be partitioned or finished into separate rooms, except to enclose storage areas; and shall be constructed entirely of flood-resistant materials below the regulatory flood protection elevation.

• Flood-resistant materials

  New construction and substantial improvements shall be constructed with materials and utility equipment resistant to flood damage.

• Flood vent area ratio1 sq in per sq ftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  The total net area of all openings must be at least one square inch for each square foot of enclosed area subject to flooding.

• Flood vent bottom heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first.1 ft

  The bottom of all required openings shall be no higher than one foot above the adjacent grade.

• Minimum flood vent openings2 openings

  Provide a minimum of two openings on different sides of each enclosed area subject to flooding.

• Manufactured homeManufactured homeA dwelling built in a factory to a federal standard and transported to the site. anchoring

  Manufactured homes shall be anchored to prevent flotation, collapse or lateral movement. Methods of anchoring may include, but are not limited to, use of over-the-top or frame ties to ground anchors.

• Manufactured homeManufactured homeA dwelling built in a factory to a federal standard and transported to the site. anchoring requirement

  The manufactured home must be securely anchored to the adequately anchored foundation system to resist flotation, collapse and lateral movement.

• Manufactured homeManufactured homeA dwelling built in a factory to a federal standard and transported to the site. elevation above BFE1 ft

  The lowest floor of the manufactured home is elevated no lower than one foot above the base flood elevation.

• Manufactured homeManufactured homeA dwelling built in a factory to a federal standard and transported to the site. pier heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first.36 in

  The manufactured home chassis is supported by reinforced piers or other foundation elements of at least an equivalent strength, of no less than 36 inches in height above the grade.

• Minimize flood damage

  New construction or substantial improvements shall be constructed by methods and practices that minimize flood damage.

• Alterations to noncompliant buildings

  Any alteration, repair, reconstruction or improvements to a building that is not in compliance with the provisions of this chapter shall be undertaken only if said nonconformity is not furthered, extended or replaced.

• Nonresidential lowest floor elevation above BFE1 ft

  New construction or substantial improvement of any commercial, industrial or nonresidential building (or manufactured home) shall have the lowest floor, including basement, elevated to no lower than one foot above the base flood elevation. Buildings located in all A1-30, AE and AH Zones may be flood-proofed in lieu of being elevated.

• Notification for watercourse alteration

  In riverine situations, adjacent communities and the Department of Conservation and Recreation (Department of Floodplain Management) shall be notified prior to any alteration or relocation of a watercourse, and copies of such notifications shall be submitted to FEMA.

• Residential lowest floor elevation above BFE1 ft

  New construction or substantial improvement of any residential structure (including manufactured homes) shall have the lowest floor, including basement, elevated no lower than one foot above the base flood elevation.

• Recreational vehicle maximum days on site180 days

  All recreational vehicles placed on sites must either be on the site for fewer than 180 consecutive days, be fully licensed and ready for highway use, or meet all the requirements for manufactured homes.

• Sanitary sewage protection

  New and replacement sanitary sewage systems shall be designed to minimize or eliminate infiltration of floodwaters into the systems and discharges from the systems into floodwaters.

• Subdivision BFE data threshold50 lots

  Base flood elevation data shall be provided for subdivision proposals and other proposed development proposals (including manufactured home parks and subdivisions) that exceed 50 lots or five acres, whichever is the lesser.

• Subdivision drainage

  All subdivision proposals shall have adequate drainage provided to reduce exposure to flood hazards.

• Subdivision flood damage minimization

  All subdivision proposals shall be consistent with the need to minimize flood damage.

• Subdivision utilities flood protection

  All subdivision proposals shall have public utilities and facilities, such as sewer, gas, electrical and water systems, located and constructed to minimize flood damage.

• Utility equipment protection

  Electrical, heating, ventilation, plumbing, air-conditioning equipment and other service facilities, including duct work, shall be designed and/or located so as to prevent water from entering or accumulating within the components during conditions of flooding.

• On-site waste disposal protection

  On-site waste disposal systems shall be located and constructed to avoid impairment to them or contamination from them during flooding.

• Water supply protection

  New and replacement water supply systems shall be designed to minimize or eliminate infiltration of floodwaters into the system.

• Zoning permit required

  All uses, activities and development occurring within any floodplain district shall be undertaken only upon the issuance of a zoning permit.