Article 11, Section 3.2 (Overlay Concept) and Section 4.1-4.2
Dimensional standards
Servicing
- Applies near
- Flood Insurance Rate Map (FIRM)
- Geographic extent
- All areas of special flood hazard as identified on the Flood Insurance Rate Map (FIRM) and Flood Insurance Study (FIS) for Madison County, dated September 18, 2020, and any subsequent revisions.
Extracted standards
9 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Other
- Anchoring to prevent flotation, collapse, or lateral movement
New construction and substantial improvements shall be anchored to prevent flotation, collapse or lateral movement of the structure.
- Flood carrying capacity maintained
The flood carrying capacity within an altered or relocated portion of any watercourse shall be maintained.
- Flood-resistant materials required
New construction and substantial improvements shall be constructed with materials and utility equipment resistant to flood damage.
- On-site waste disposal systems located to avoid impairment
On-site waste disposal systems shall be located and constructed to avoid impairment to them or contamination from them during flooding.
- Flood Zone Development Permit required
All uses, activities, and development occurring within any floodplain district, including placement of manufactured homes, shall be undertaken only upon the issuance of a Flood Zone Development Permit.
- Sanitary sewage systems minimize infiltration
New and replacement sanitary sewage systems shall be designed to minimize or eliminate infiltration of flood waters into the systems and discharges from the systems into flood waters.
- Utilities designed to prevent water entry
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.
- Water supply systems minimize infiltration
New and replacement water supply systems shall be designed to minimize or eliminate infiltration of flood waters into the system.
- Permit required for watercourse alteration
Prior to any proposed alteration or relocation of any channels or of any watercourse, stream, etc., within this jurisdiction a permit shall be obtained from the U.S. Corps of Engineers, the Virginia Department of Environmental Quality, and the Virginia Marine Resources Commission.
From the ordinance
The Floodplain Districts described above shall be overlays to the existing underlying districts... If there is any conflict between the provisions or requirements of the Floodplain Districts and those of any underlying district, the more restrictive provisions and/or those pertaining to the floodplain districts shall apply.