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<br />Ordinance 04- 21 f 1 <br />Page 4 <br /> <br />SECTION 2. Section 94-89Standards for areas of shallow flooding of the Code of <br /> <br />Ordinances of the City of La Porte is hereby amended to read as follows: <br /> <br />Sec. 94-89. Standards for areas of shallow flooding. <br /> <br />Located within the areas of special flood hazard established in 94-38 are areas <br />designated as areas of shallow flooding. These areas have special flood hazards <br />associated with base flood depths of one to three feet where a clearly defined <br />channel does not exist and where the path of flooding is characterized by ponding or <br />sheet flow; therefore, the following provisions apply: <br /> <br />(1) All new construction and substantial improvements of residential structures <br />have the lowest floor (including basement) elevated above the highest <br />adjacent grade at least one foot above the depth number specified in feet <br />on the city's FIRM (at least two feet if no depth number is specified). <br /> <br />(2) All new construction and substantial improvements of nonresidential <br />structures shall: <br /> <br />a. Have the lowest floor (including basement) elevated above the <br />highest adjacent grade at least as high as the depth number <br />specified in feet on the city's FIRM (at least two feet if no depth <br />number is specified); or <br />b. Together with attendant utility and sanitary facilities be designed so <br />that below the base flood level the structure is watertight with walls <br />substantially impermeable to the passage of water and with <br />structural components having the capability of resisting hydrostatic <br />and hydrodynamic loads of effects of buoyancy. <br /> <br />(3) A registered professional engineer shall submit a certification to the <br />floodplain administrator that the standards of this section, as proposed in <br />section 94-64(a)(1), are satisfied. <br /> <br />(4) Require within Zones AH or AD adequate drainage paths around <br />structures on slopes, to guide floodwaters around and away from proposed <br />structures. <br /> <br />SECTION 3. Section 94-91 Coastal high hazard areas of the Code of Ordinances <br /> <br />of the City of La Porte is hereby amended to read as follows: <br /> <br />Sec. 94-91. Coastal high hazard areas. <br /> <br />Located within the areas of special flood hazard established in section 94-38 are <br />areas designated as coastal high hazard areas (Zones V1-30, VE and for V.) These <br />areas have special flood hazards associated with high velocity waters from tidal <br />