§ 17-51. Garages and low cost accessory structures.

(a)

Attached garages.

(1)

A garage attached to a residential structure, constructed with the garage floor slab below the Regulatory Flood Elevation, must be designed to allow for the automatic entry of flood waters. Areas of the garage below the Regulatory Flood Elevation must be constructed with flood resistant materials (Sections 17-42 and 17-43).

(2)

A garage attached to a nonresidential structure must meet the above requirements or be dry floodproofed.

(b)

Detached garages and accessory structures. "Accessory structures" used solely for parking two (2)-car detached garages or smaller) or limited storage (small, low-cost sheds), as defined in Section 17-5, may be constructed such that the floor is below the Regulatory Flood Elevation, provided the structure is designed and constructed in accordance with the following requirements:

(1)

Use of the accessory structure must be limited to parking or limited storage;

(2)

The portions of the accessory structure located below the Regulatory Flood Elevation must be built using flood-resistant materials;

(3)

The accessory structure must be adequately anchored to prevent flotation, collapse and lateral movement;

(4)

Any mechanical and utility equipment in the accessory structure must be elevated or floodproofed to or above the Regulatory Flood Elevation;

(5)

The accessory structure must comply with floodplain encroachment provisions in Section 17-48; and

(6)

The accessory structure must be designed to allow for the automatic entry of flood waters in accordance with Section 17-43.

(Res. No. 4742, § 3(Exh. A), 11-13-13)