§ 153.064 FLOODPLAIN.
   (A)   General. Subdividing of property that includes areas designated as flood hazard areas by the Federal Emergency Management Agency shall conform to applicable federal, state, county, and city floodplain management requirements.
   (B)   Liability. The city will not be financially liable for any damages due to flooding.
   (C)   Notification. Subdivision plats, site plans, and building permits shall designate lots and portions thereof that are in flood hazard zones.
   (D)   Definitions. For the purpose of this section, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
      BASE FLOOD ELEVATION LINES. Elevation lines showing projected water surface elevation that can be expected from a flood with a probability of occurrence of 1%.
      FLOOD. A general and temporary condition of partial and complete inundation of normally dry land areas from the overflow of streams, rivers or other inland water.
      FLOOD HAZARD BOUNDARY MAP. An official map or plat, approved by the Federal Insurance Administration, on which the boundaries of the area having special flood hazards have been drawn for the purpose of the federal flood insurance program.
      FLOODING. Same as “flood.”
      FLOODPLAIN. An area susceptible to flooding.
      FLOODPROOFING. Any combination of structural and nonstructural additions, changes or adjustments to properties and structures, primarily for the reduction or elimination of flood damage to lands, water and sanitary facilities, structures and contents of building.
      FLOODWAY. The channel of a water course and the adjacent land that must be reserved to discharge the base flood without increasing the water surface elevation more than one foot.
      F LOODWAY ENCROACHMENT LINES. The lines marking the limits of floodways on the official flood hazard boundary map.
      ONE HUNDRED YEAR STORM. A storm or rainfall event, having a one percent chance of being equaled or exceeded in any given year.
      RIVERINE. Of or relating to a river, stream or water course.
      WATER SURFACE ELEVATION DATA. The elevation in relation to mean sea level of an air- water interface.
   (E)   After floodways are identified and designated, no new construction or major improvement will be authorized in the flood plain that will raise the water surface elevation above the base flood elevation more than one foot.
   (F)   All residential building permit applications for new construction of substantial improvements shall be accompanied by a statement of a duly registered Texas surveyor or engineer certifying that the lowest building, including basement, elevation will be at least two feet above the base flood elevation line.
   (G)   Building permit applications for buildings or portions thereof that are or will be less than two feet above the base flood elevation shall be reviewed by the Building Inspector to determine that the proposed construction or repair uses construction materials and utility equipment that are resistant to flood damage and construction methods that will minimize flood damage.
   (H)   Building permit applications shall be reviewed by the Building Inspector to assure that the proposed construction is protected against flood damage and anchored to prevent flotation, collapse or movement of structure.
   (I)   The City Engineer will review all subdivision proposals and other proposed new development to assure that: all such proposals are consistent with the need to minimize flood damage; all public utilities and facilities such as gas, electrical, sewer and water systems are constructed to minimize or eliminate flood damage; adequate drainage is provided so as to reduce exposure to flood hazards.
(Ord. 933, passed 8-9-05) Penalty, see § 153.999