G307.5 Elevation of certain tanks and containers serving flood design class 4 buildings.

The following tanks and containers shall be located at or above the design flood elevation specified in ASCE 24, Table 7-1, when serving flood design class 4 buildings. Such tanks and containers must be designed to maintain service to such structure during flood conditions and shall comply with Section 9.7 of ASCE 24:

   1.   Medical and compressed gas storage tanks, oxygen tanks, and other cryogenic system storage tanks;

   2.   Hazardous material storage tanks;

   3.   Stationary compressed gas containers;

   4.   Stationary cryogenic containers and

   5.   Stationary flammable gas storage containers.

Section BC G308: Other Building Work

G308.1 Garages and accessory structures.

Garages and accessory structures shall be designed and constructed in accordance with ASCE 24, Section 9.4.

G308.2 Fences.

Fences in floodways that may block the passage of floodwaters, such as stockade fences and wire mesh fences, shall meet the requirement of Section G103.5.

G308.3 Oil derricks.

Oil derricks located in special flood hazard areas shall be designed in conformance with ASCE 24.

G308.4 Retaining walls, sidewalks and driveways.

Retaining walls, sidewalks and driveways shall meet the requirements of Sections G303.6 and G303.7.

G308.5 Swimming pools.

Swimming pools shall be designed and constructed in accordance with ASCE 24. Above-ground swimming pools, on-ground swimming pools and in-ground swimming pools that involve placement of fill in floodways shall also meet the requirements of Section G103.5.

G308.6 Decks, porches, and patios.

Decks, porches and patios shall be designed and constructed in accordance with ASCE 24.

G308.7 Nonstructural concrete slabs in coastal high-hazard areas and coastal A-Zones.

In coastal high-hazard areas and coastal A-Zones, nonstructural concrete slabs used as parking pads, enclosure floors, landings, decks, walkways, patios and similar nonstructural uses are permitted beneath or adjacent to buildings and structures provided that the concrete slabs shall be constructed in accordance with ASCE 24, Section 9.3.