11-2-4: PRELIMINARY MAJOR SUBDIVISION PLAT AND PLANS:
Whenever a major subdivision is proposed, the developer shall submit and provide to the director of public works, the names and personal communication contact information (i.e., daytime telephone number) of the owner, developer, engineer and surveyor, and the following:
   A.   Submission Of Preliminary Plat:
      1.   The developer shall submit ten (10) legible copies of the proposed plat drawn to a minimum scale of one inch equals one hundred feet (1" = 100'). The preliminary plat shall be submitted to the director of public works office not less than fifteen (15) days prior to the planning and zoning commission meeting at which the same shall be considered and shall contain the following:
         a.   The proposed name of the subdivision. The name shall not duplicate, be the same in spelling or alike in pronunciation with the name of any other recorded subdivision, unless it is an extension of or adjacent to said subdivision, and shall be in conformance with the requirements of state law.
         b.   The names of all adjacent subdivisions and all lot and block lines, easements and rights of way adjoining unplatted property shall be labeled as such.
         c.   Vicinity map to scale, showing location of the preliminary plan and other property for at least six hundred sixty feet (660') in every direction.
         d.   The correct legal description. Notations stating acreage, scale, north arrow and date of survey.
         e.   A systematic lot and block numbering pattern, lot lines and street names.
         f.   The location and width of all proposed and existing streets, alleys and easements, as well as the location of any parks, watercourses, tree masses, railroad rights of way and other significant features.
   B.   Submission Of Preliminary Plans: The following plans shall be submitted to the director of public works in conjunction with the preliminary plat:
      1.   Preliminary Site Drainage And Grading Plan: A contour drawing depicting the existing drainage pattern for the area along with any proposed cut and fill operations which would alter the existing drainage patterns. Existing contours shall be referenced to the city datum with intervals sufficient to determine the character and topography of the land to be subdivided, but in no case shall the intervals be more than one foot (1') for land with a slope of one percent (1%) or less, two feet (2') for a slope between one and one-tenth percent (1.1%) and nine and nine-tenths percent (9.9%) and five feet (5') for land with a slope exceeding ten percent (10%).
      2.   Preliminary Utility Plan: A line drawing depicting and describing the location of the nearest available sewer and water connections, the direction of the proposed sanitary sewer flow, and the proposed location of any lift stations.
      3.   Preliminary Street Grading Plan: The street grading plan shall show finished street grades shown to an accuracy of one-tenth of a foot (0.10'), showing existing conditions and proposed curb grades, and a detailed design for all intersections. Where the developer owns only half the property which makes up a street, he shall be responsible for establishing the street grades for said street for approval by the director of public works.
      4.   Preliminary Erosion Control Plan: The erosion control plan shall show all proposed land disturbance including areas of excavation, grading, filling, removal or destruction of topsoil and spreading of earth material, including the proposed sequence of the operations listed above during construction, with an estimated time of exposure and the proposed temporary measures to control erosion will be designed to withstand the 2-year rain and shown on the plat.
One or more of the above specified plans may be depicted upon a single scaled line drawing or diagram if so approved by the director of public works, prepared to the standards acceptable to the director of public works. Upon inquiry, the director of public works shall consult with the developer during the course of the preparation of the preliminary plat and plans so as, to the extent possible, avert otherwise unnecessary reworkings of the preliminary plat and plans to meet and satisfy the requirements of the city.
   C.   Approval Of Preliminary Plat And Plans: The preliminary plat and associated plans shall be submitted to the planning and zoning commission for approval or disapproval. The approved plan shall be kept on file in the office of the director of public works. Approval of the preliminary plan shall indicate approval of the development concept only, and does not constitute an acceptance or approval of the subdivision plan. No zoning or building permits shall be issued based on the approval of the preliminary plan. The approval of a preliminary plan shall be effective for a period of three (3) years at the end of which time approval on the subdivision plat or a portion thereof must have been obtained from the city council. Any plan which has not received approval for all or a portion of it within the period of time set forth herein, shall be null and void, and the developer may, at the option of the planning and zoning commission, be required to resubmit a new plan for preliminary approval subject to any then existing zoning restrictions, subdivision regulations or other factors effecting the plan. (2005 Code)