(A) All preliminary subdivision proposals shall identify the flood hazard area and the elevation of the base flood and be consistent with the need to minimize flood damage;
(B) All subdivision proposals shall have public utilities and facilities such as sewer, gas, electrical and water systems located and constructed to minimize flood damage;
(C) All subdivision proposals shall have adequate drainage provided to reduce exposure to flood hazards; all final subdivision plats will provide the boundary of the special flood hazard area, the floodway boundary, and base flood elevations as well as future conditions flood elevations; and
(D) In areas where base flood elevation and floodway data is not available (Zone A or unmapped streams), base flood elevation and floodway data for subdivision proposals and other proposed development (including manufactured home parks and subdivisions) shall be provided.
(E) All subdivision plans will include the elevation of proposed structure(s) and lowest adjacent grade. If the site is filled above the base flood elevation, the lowest floor and lowest adjacent grade elevations shall be certified by a registered professional engineer or surveyor and provided to the Floodplain Administrator.
(F) Approval shall not be given for streets within a subdivision, which would be subject to flooding in the base flood. All street surfaces must be located at or above the base flood elevation. Refer to City of Richmond Stormwater Manual Chapter 6.
(G) In platted subdivisions, all proposed lots or parcels that will be future building sites shall have a minimum buildable area outside the natural (non-filled) 1% chance annual floodplain. The buildable area shall be large enough to accommodate any primary structure and associated structures such as sheds, bams, swimming pools, detached garages, on-site sewage disposal systems, and water supply wells, if applicable.
(Ord. 17-31, passed 12-12-17)