Vinton, Virginia · General provision
Sec. 4-33. - Existing structures in floodplain areas.
Extracted standards
2 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Floodplain
- Floodway expansion prohibitedProhibitedNot allowed in the district at all, short of rezoning or a variance.
Existing structures in the floodway area shall not be expanded or enlarged unless it has been demonstrated through hydrologic and hydraulic analyses performed in accordance with standard engineering practices that the proposed expansion would not result in any increase in the base flood elevation.
- Substantial improvement threshold50 pct
The modification, alteration, repair, reconstruction, or improvement of any kind to a structure and/or use, regardless of its location in a floodplain area to an extent or amount of 50 percent or more of its market value shall be undertaken only in full compliance with this ordinance and shall require the entire structure to conform to the VA USBC.
From the ordinance
Existing structures in the floodway area shall not be expanded or enlarged unless it has been demonstrated through hydrologic and hydraulic analyses performed in accordance with standard engineering practices that the proposed expansion would not result in any increase in the base flood elevation.