Section 5-3-16

Other

• Anchoring requirement

  Be anchored to prevent floatation.

• Elevation of electrical and mechanical equipment

  Have electrical service and mechanical equipment elevated to or above the base flood elevation.

• Flood damage-resistant materials

  Be constructed with flood damage-resistant materials below the base flood elevation.

• Flood openings for accessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structures

  There shall be a minimum of two flood openings on different sides of each enclosed area; if a building has more than one enclosure below the lowest floor, each such enclosure shall have flood openings on exterior walls. The total net area of all flood openings shall be at least 1 square inch for each square foot of enclosed area (non-engineered flood openings), or the flood openings shall be engineered flood openings that are designed and certified by a licensed professional engineer to automatically allow entry and exit of floodwaters; the certification requirement may be satisfied by an individual certification, or an Evaluation Report issued by the ICC Evaluation Service, Inc. The bottom of each flood opening shall be 1 foot or less above the higher of the interior floor or grade, or the exterior grade, immediately below the opening. Any louvers, screens, or other covers for the flood openings shall allow the automatic flow of floodwaters into and out of the enclosed area.

• Maximum accessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structure floor area600 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  Be limited to no more than 600 square feet in total floor area.

• AccessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structure use restriction

  Not be used for human habitation; be useable only for parking of vehicles or limited storage.

• Drainage facilities flood design

  All storm drainage facilities shall be designed to convey the flow of surface waters without damage to persons or property. The systems shall ensure drainage away from buildings and on-site waste disposal systems.

• Existing structure conformity

  Any structure or use of a structure or premises must be brought into conformity with these provisions when it is changed, repaired, or improved unless one of the following exceptions is established before the change is made: ...

• Flexible skirting exemption

  Foundation enclosures made of flexible skirting are not considered enclosures for regulatory purposes, and, therefore, do not require openings.

• Total net area of openings1 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 1 square inch for each square foot of enclosed area subject to flooding.

• Maximum heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. of opening bottom above grade1 ft

  The bottom of all required openings shall be no higher than 1 foot above the adjacent grade.

• Flood opening coverings

  Openings may be equipped with screens, louvers, or other opening coverings or devices, provided they permit the automatic flow of floodwaters in both directions.

• Minimum number of flood openings2 openings

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

• Maximum consecutive days for recreational vehicle180 days

  Be on the site for fewer than 180 consecutive days and be fully licensed and ready for highway use.

• Sanitary sewer flood design

  All new or replacement sanitary sewer facilities and private package sewage treatment plants, including all pumping stations and collector systems, shall be designed to minimize or eliminate infiltration of flood waters into the systems and discharges from the systems into the flood waters.

• Streets and sidewalks flood design

  Streets and sidewalks should be designed to minimize their potential for increasing and aggravating the levels of flood flow. Drainage openings shall be required to sufficiently discharge flood flows without unduly increasing flood heights.

• Utilities flood design

  All utilities, such as gas lines, electrical and telephone systems being placed in flood-prone areas should be located, elevated where possible, and constructed to minimize the chance of impairment during a flooding occurrence.

• VarianceVariancePermission to depart from a specific dimensional rule, granted on a showing of hardship. criteria

  Variances shall be issued only upon a showing of good and sufficient cause; determination by the BZA that failure to grant the variances would result in exceptional hardship; determination by the BZA that the variance will be the minimum required to provide relief; and after the BZA has determined that the granting of such variance will not result in unacceptable or prohibited increases in flood height, additional threats to public safety, extraordinary public expense, etc.

• Water facilities flood design

  All new or replacement water facilities shall be designed to minimize or eliminate infiltration of flood waters into the system and be located and constructed to minimize or eliminate flood damages.