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DIVISION 94-4-3 DRAINAGE IMPROVEMENTS
   94-276   Storm Drainage And Flood Hazard Areas
   94-277   Responsibility For Drainage
   94-278   Flood Hazard Areas Designated
   94-279   Areas Not Designated Floodway; Drainage Assessment
   94-280   Flowage Easements
   94-281   Floodway-Fringe Areas
   94-282   Runoff
   94-283   Tributary And Surface Drainage Channels
   94-284   Storm Sewers
   94-285   Drainage Channel Location
   94-286   Site Grading
   94-287   Surface Water Collection
   94-288   Drainage Easement Widths
   94-289   Closed Storm Sewer Construction Requirement
   94-290   Bridges Or Culverts; Size
   94-291   Open Paved Storm Drainage Channels; Specifications
   94-292   Improvements, Drainage Easements, Agreements Beyond Boundaries
   94-293   Property Owner Agreements
   94-294   Retention Reservoirs
Cross reference- Utilities, Ch. 110.
Sec 94-276 Storm Drainage And Flood Hazard Areas
   A.   All subdivisions of land shall comply with the design and improvement requirements established in this division for the protection of flood hazard areas and the prevention of erosion.
   B.   For the purposes of these regulations, drainage shall be classified as follows:
      1.   Major tributary. Any channel having a drainage basin of not less than one (1) square mile or greater than twenty-five (25) square miles.
      2.   Minor tributary. Any drainage channel having a drainage basin of six hundred forty (640) acres (one (1) square mile) or less in area.
      3.   River. Any channel having a drainage basin of greater than twenty-five (25) square miles.
      4.   Surface drainage. The runoff of such a limited quantity or slow rate that it does not cause erosion of a defined channel.
(Code 1991, § 12-495)
Sec 94-277 Responsibility For Drainage
Responsibility for drainage shall be allocated as follows, unless otherwise specifically designated:
   A.   The developer of a subdivision is responsible for the following:
      1.   All surface drainage on the subdivision;
      2.   All increase in surface drainage outside the subdivision which results from the development of the subdivision;
      3.   The improvement of all minor tributaries lying within the subdivision;
      4.   Any significant increase in the rate or quantity of runoff in any minor or major tributary or river which results from the development of the subdivision; and
      5.   Provision for the maintenance of all floodway and floodway-fringe areas of major tributaries and rivers which have not been dedicated to the public.
   B.   The City and other levels of government will be responsible for the following:
      1.   The improvement of floodways of major tributaries;
      2.   The improvement of river floodways; and
      3.   The maintenance of floodway and floodway-fringe areas dedicated to the public.
(Code 1991, § 12-496)
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