§ 153.21 PLAT SPECIFICATIONS.
   (A)   Waiving certain data requirements. In a subdivision for residential use of less than five lots and where the lots abut existing public roads and utilities, the Commission may waive data requirements such as topographic street and utility information, where the Commission deems such information is unnecessary.
   (B)   Sketch plan. The subdivider may prepare a sketch plan to present to the Plan Commission at the advisory meeting. This plan may be drawn as a freehand pencil sketch and does not require precise dimensions or any special sheet size. This sketch plan may be used to show the Plan Commission the location, proposed street, and lot layout and any other significant features of the proposed subdivision.
   (C)   Preliminary plat. The following maps and data shall be submitted with the application for preliminary plat approval, and these maps and data may be on separate sheets or combined on one sheet, depending on the size and complexity of the proposed subdivision:
      (1)   A location map of the proposed subdivision showing:
         (a)   A location within the city jurisdiction area;
         (b)   Zoning of the tract and adjacent properties; and
         (c)   Existing related streets including the distances therefrom.
      (2)   A site map of the proposed subdivision and all lands within at least 100 feet of its boundaries showing:
         (a)   Contours of the site at vertical intervals of two feet if the general slope is less than 10% and at intervals of five feet if the general slope is greater than 10%;
         (b)   Character and location of natural or artificial features existing on the land which would affect the design of the subdivision such as wooded areas, streams, direction and gradient of ground slope, embankments, retaining walls, buildings, or nonresidential usage of land;
         (c)   Names of owners or properties adjacent to the subdivision;
         (d)   Existing and proposed streets and rights-of-way including dedicated widths, roadway widths, approximate gradients, types and widths of pavements, curbs, and sidewalks;
         (e)   Existing and proposed easements including widths and purposes;
         (f)   Utilities including the size, capacity, and location of sanitary sewers, storm sewers, drainage facilities, water lines, gas mains, and power lines;
         (g)   Areas subject to periodic overflow of flood or stormwater;
         (h)   Subsurface conditions including information about groundwater levels and stability of subsoils;
         (i)   Tract boundary lines by calculated distances and bearings; and
         (j)   Title, graphic scale, north point, and date.
      (3)   A subdivision plat of the proposed subdivision drawn at a scale no smaller than 100 feet to one inch showing:
         (a)   Subdivision name;
         (b)   Names and addresses of owner, subdivider, and person who prepared the plan;
         (c)   Street pattern including the names (which shall not duplicate existing streets in the city unless it is an extension of an existing street), widths of rights-of-way of streets, widths of easements for alleys, approximate grades of streets, widths of easements for alleys, and approximate grades of streets where they exceed 8%;
         (d)   Layout of lots, including dimensions, numbers, building setback lines, or front yard lines;
         (e)   Parcels of land dedicated to or reserved for schools, parks, playgrounds, or other public or community use; and
         (f)   Key plan, legend, notes, graphic scale, north point, and date.
      (4)   Engineering plans for the proposed subdivision showing:
         (a)   Profiles, cross-sections, and specifications for proposed street improvements;
         (b)   Profiles and other explanatory data concerning installation of water distribution systems, storm sewers, and sanitary sewers;
         (c)   A report on the feasibility of connection to an existing sewerage system including distances to the nearest public sewer, service load of the subdivision, and capacity of the treatment plant;
         (d)   If connection to a public sewerage system is not feasible, a report on the feasibility of a separate sewerage system and treatment works for the subdivision including the design population, type, and location of the treatment plant and the receiving stream; and
         (e)   If connection to a public or a private sewerage system is not feasible, a report on the feasibility of on-lot sewerage disposal including a detailed map of the physical conditions of the site, contours, finished grades, watercourses, groundwater table elevations, and the results of soil percolation tests for each individual lot conducted in accordance with the recommended practices of the State Board of Health.
      (5)   A draft of the protective covenants or private restrictions to be adopted in the final subdivision plat.
   (D)   Final plat. The final plat shall be drawn at a scale no smaller than 100 feet to one inch. The final plat shall show:
      (1)   Subdivision names, names and addresses of owner and subdivider, source of title of land as shown by the books of the County Recorder, graphic scale, north point, date, and certificate of approval of Plan Commission;
      (2)   Survey data with certification by a registered professional engineer or land surveyor, showing:
         (a)   Calculated distances and bearings of the subdivision boundaries, lots, utility easements, streets, alleys, building setback lines, and parcels of reserved or dedicated land for community purposes;
         (b)   Location and distances to the nearest established street corners or official monuments and of the streets intersecting the boundaries of the subdivision;
         (c)   Location, type, material, and size of monuments;
         (d)   Complete curve data; and
         (e)   Lot numbers and street names.
      (3)   Notations as to whether improvements are dedicated or not.
(Prior Code, § 151.09) (Ord. 908, passed 9-15-1969)