23-25 Amending Chapter 6, Article 9, of the South Bend Municipal Code to Update the Regulations for Flood Damage Prevention

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(b) Conditional Letter of Map Revision Based on Fill(CLOMR-F)means a letter from FEMA stating that a proposed structure that will be elevated by fill would not be inundated by the base flood. (c) Letter of Map Amendment (LOMA) means an amendment by letter to the currently effective FEMA map that establishes that a building or area of land is not located in a SFHA through the submittal of property specific elevation data. A LOMA is only issued by FEMA. (d) Letter of Map Amendment Out as Shown (LOMA-OAS) means an official determination by FEMA that states the property or building is correctly shown outside the SFHA as shown on an effective NFIP map. Therefore, the mandatory flood insurance requirement does not apply. An out-as-shown determination does not require elevations. (e) Letter of Map Revision (LOMR) means an official revision to the currently effective FEMA map.It is issued by FEMA and changes flood zones,delineations, and elevations. (f) Letter of Map Revision Based on Fill(LOMR-F)means FEMA's modification of the SFHA shown on the FIRM based on the placement of fill outside the existing regulatory floodway. (47) Lowest adjacent grade means the lowest elevation, after completion of construction, of the ground, sidewalk,patio,deck support, or basement entryway immediately next to the structure. (48) Lowest floor means,for floodplain management purposes,the lowest elevation described among the following: (a) The lowest floor of a building. (b) The basement floor. (c) The garage floor if the garage is connected to the building. (d) The first floor of a structure elevated on pilings or pillars. (e) The floor level of any enclosure,other than a basement,below an elevated structure where the walls of the enclosure provide any resistance to the flow of floodwaters. Designs for meeting the flood opening requirement must either be certified by a registered professional engineer or architect or meet or exceed the following criteria: (i) The walls are designed to automatically equalize the hydrostatic flood forces on the walls by allowing for the entry and exit of floodwaters. (ii) At least two(2)openings are designed and maintained for the entry and exit of floodwater;and these openings provide a total net area of at least one(1) square inch for every one(1) square foot of enclosed area. The bottom of all such openings shall be no higher than one (1) foot above the exterior grade or the interior grade immediately beneath each opening,whichever is higher. Doorways and windows do not qualify as openings. (f) The first floor of a building elevated on pilings or columns in a coastal high hazard area(as that term is defined in 44 CFR 59.1),as long as it meets the requirements of 44 CFR 60.3. (49) Manufactured home means a structure, transportable in one or more sections, which is built on a permanent chassis and is designed for use with or without a permanent 9